1
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Wang Y, Wang Y, Du X, Zheng K, Zhai S, Bai S, Fang L, Zhang T. Catalytic Enantioselective Propargylation of Pyrazolones by Amide-Based Phase-Transfer Catalysts. Org Lett 2024; 26:7318-7323. [PMID: 39185762 DOI: 10.1021/acs.orglett.4c02441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
In this paper, we developed a highly enantioselective alkylation of 4-substituted pyrazolones catalyzed by phase-transfer catalysis. Cheap halohydrocarbons were employed as electrophilic alkylationg agents, and propargyl, allyl, and benzyl products with all-carbon quaternary stereocenters were afforded with excellent enantioselectivities and good yields. We found that the unique structures of the catalyst (hydrogen bond donors of the C-9 hydroxyl group and amide group, the triphenyl at the NH-position) were important for good enantioselectivity. Furthermore, chiral propargyl products could be easily connected to azide molecules by click cycloaddition, which offers unique opportunities to obtain structurally diverse chiral pyrazolones.
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Affiliation(s)
- Yakun Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yingying Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Xiaoyu Du
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Kaiting Zheng
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Shuman Zhai
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Suping Bai
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Lizhen Fang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Tao Zhang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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2
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Zhou W, Lv J, Wang C. Diversity-Oriented Synthesis of Spiro[chromeno[2,3- b]pyridine-3,4'-pyrazole] Derivatives via Pseudo-Three-Component Reactions. J Org Chem 2024; 89:10371-10378. [PMID: 38978479 DOI: 10.1021/acs.joc.4c00959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
A novel one-pot pseudo-three-component reaction of 2-amino-4H-chromen-4-ones with 4-benzylidene-5-alkyl-2-aryl-2,4-dihydro-3H-pyrazol-3-ones was investigated for the synthesis of the spiro[chromeno[2,3-b]pyridine-3,4'-pyrazole] derivatives. This procedure involved Michael addition, elimination, and hetero-Diels-Alder sequences, affording a series of spiropyrazolone-chromeno[2,3-b]pyridines in good yields that possessed cis relationships between two aryl groups and the carbonyl of the pyrazolone unit.
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Affiliation(s)
- Wenyan Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Jiaman Lv
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
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3
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Goyal P, Dubey AK, Chowdhury R, Wadawale A. Primary amine-catalyzed enantioselective 1,4-Michael addition reaction of pyrazolin-5-ones to α,β-unsaturated ketones. Beilstein J Org Chem 2024; 20:1518-1526. [PMID: 39015621 PMCID: PMC11250233 DOI: 10.3762/bjoc.20.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/24/2024] [Indexed: 07/18/2024] Open
Abstract
The enantioselective 1,4-addition reaction of pyrazolin-5-ones to α,β-unsaturated ketones catalyzed by a cinchona alkaloid-derived primary amine-Brønsted acid composite is reported. Both enantiomers of the anticipated pyrazole derivatives were obtained in good to excellent yields (up to 97%) and high enantioselectivities (up to 98.5% ee) under mild reaction conditions. In addition, this protocol was further expanded to synthesize highly enantioenriched hybrid molecules bearing biologically relevant heterocycles.
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Affiliation(s)
- Pooja Goyal
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Akhil K Dubey
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Raghunath Chowdhury
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Amey Wadawale
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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4
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Conboy A, Goodfellow AS, Kasten K, Dunne J, Cordes DB, Bühl M, Smith AD. De-epimerizing DyKAT of β-lactones generated by isothiourea-catalysed enantioselective [2 + 2] cycloaddition. Chem Sci 2024; 15:8896-8904. [PMID: 38873072 PMCID: PMC11168096 DOI: 10.1039/d4sc01410c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/17/2024] [Indexed: 06/15/2024] Open
Abstract
An enantioselective isothiourea-catalysed [2 + 2] cycloaddition of C(1)-ammonium enolates with pyrazol-4,5-diones is used to construct spirocyclic β-lactones in good yields, excellent enantioselectivity (99 : 1 er) but with modest diastereocontrol (typically 70 : 30 dr). Upon ring-opening with morpholine or alternative nucleophilic amines and alcohols β-hydroxyamide and β-hydroxyester products are generated with enhanced diastereocontrol (up to >95 : 5 dr). Control experiments show that stereoconvergence is observed in the ring-opening of diastereoisomeric β-lactones, leading to a single product (>95 : 5 dr, >99 : 1 er). Mechanistic studies and DFT analysis indicate a substrate controlled Dynamic Kinetic Asymmetric Transformation (DyKAT) involving epimerisation at C(3) of the β-lactone under the reaction conditions, coupled with a hydrogen bond-assisted nucleophilic addition to the Si-face of the β-lactone and stereodetermining ring-opening. The scope and limitations of a one-pot protocol consisting of isothiourea-catalysed enantio-determining [2 + 2] cycloaddition followed by diastereo-determining ring-opening are subsequently developed. Variation within the anhydride ammonium enolate precursor, as well as N(1) and C(3) within the pyrazol-4,5-dione scaffold is demonstrated, giving a range of functionalised β-hydroxyamides with high diastereo- and enantiocontrol (>20 examples, up to >95 : 5 dr and >99 : 1 er) via this DyKAT.
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Affiliation(s)
- Aífe Conboy
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
| | - Alister S Goodfellow
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
| | - Kevin Kasten
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
| | - Joanne Dunne
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
| | - David B Cordes
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
| | - Michael Bühl
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews St Andrews Fife KY16 9ST UK
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5
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Wang Y, Wang Y, Guo W, Zhang Y, Du X, Song Y, Wang W, Liu Z, Duan Y, Zhang T. Enantioselective α-Trifluoromethylthiolation of Carbonyl Compounds with AgSCF 3 and Trichloroisocyanuric Acid. J Org Chem 2024. [PMID: 38806442 DOI: 10.1021/acs.joc.4c00661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
We successfully developed an enantioselective trifluoromethylthiolation of structurally diverse carbonyl compounds. Trichloroisocyanuric acid and AgSCF3 were employed to generate active electrophilic trifluoromethylthio species in situ for asymmetric C-SCF3 bond formation. A broad variety of chiral SCF3-carbon nucleophiles (pyrazolones, β-keto esters, and β-keto amides) were obtained in excellent yields with high enantioselectivities (up to 92% ee) by Cinchona alkaloid derived squaramide catalysts. The reaction exhibits high efficiency, good enantioselectivity, and high functional group tolerance, which provided a novel and efficient way for asymmetric synthesis of trifluoromethylthiolated carbonyl compounds.
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Affiliation(s)
- Yakun Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yingying Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Wenwen Guo
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yizhe Zhang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Xiaoyu Du
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yan Song
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Wenhui Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Zhiang Liu
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yingchao Duan
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Tao Zhang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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6
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Panda SP, Dash R, Hota SK, Murarka S. Photodecarboxylative Radical Cascade Involving N-(Acyloxy)phthalimides for the Synthesis of Pyrazolones. Org Lett 2024; 26:3667-3672. [PMID: 38656123 DOI: 10.1021/acs.orglett.4c01176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
We disclose N'-arylidene-N-acryloyltosylhydrazides as novel skeletons for the synthesis of biologically relevant alkylated pyrazolones through a photoinduced radical cascade with N-(acyloxy)pthalimides as readily available alkyl surrogates. The reaction proceeds through the formation of a photoactivated electron donor-acceptor (EDA) complex between alkyl N-(acyloxy)phthalimide (NHPI) esters and LiI/PPh3 as a commercially available donor system. The reaction exhibits a broad scope and scalability, thereby enabling synthesis of a broad spectrum of functionally orchestrated alkylated pyrazolones under mild and transition-metal-free conditions.
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Affiliation(s)
- Satya Prakash Panda
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037 Rajasthan, India
| | - Rupashri Dash
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037 Rajasthan, India
| | - Sudhir Kumar Hota
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037 Rajasthan, India
| | - Sandip Murarka
- Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037 Rajasthan, India
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7
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Gao S, Sun X, Peng S, Zha Z, Sun Q, Wang Z. A copper-catalyzed asymmetric Friedel-Crafts hydroxyalkylation of pyrazole-4,5-diones with 5-aminoisoxazoles. Org Biomol Chem 2024; 22:3391-3395. [PMID: 38619100 DOI: 10.1039/d4ob00322e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
An asymmetric Friedel-Crafts hydroxyalkylation reaction of 5-aminoisoxazoles with pyrazole-4,5-diones was developed under the catalysis of 5% chiral copper complexes. This reaction exhibits functional group tolerance and excellent enantioselectivity. Moreover, the reaction can be scaled up and its mechanism was studied.
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Affiliation(s)
- Siyu Gao
- Hefei National Research Center for Physical Sciences at Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Xiang Sun
- Hefei National Research Center for Physical Sciences at Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Sijie Peng
- Hefei National Research Center for Physical Sciences at Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Zhenggen Zha
- Hefei National Research Center for Physical Sciences at Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Qi Sun
- Hefei National Research Center for Physical Sciences at Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
| | - Zhiyong Wang
- Hefei National Research Center for Physical Sciences at Microscale, Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
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8
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Lai J, Huang Y. A highly diastereoselective (5+1) annulation of allenoates and pyrazolones catalyzed by CH 3OK. Chem Commun (Camb) 2024; 60:2066-2069. [PMID: 38289382 DOI: 10.1039/d3cc05751h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The first (5+1) annulation of allenoates and pyrazolones catalyzed by CH3OK has been reported. A series of spiro-pyrazolone derivatives were obtained as single diastereomers in high yields (≤95%) under mild conditions. The synthetic utility was demonstrated by a scale-up reaction and various transformations of the products. The proposed mechanism suggests that the allenoate works as a 1,5-biselectrophilic 5C synthon for the first time and controlled experiments disclose that K+ plays an important role in the diastereoselectivity-determining step through an eight-membered ring transition state. Also, this 1,5-biselectrophilic allenoate will be able to act as a 5C synthon for (5+n) annulation.
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Affiliation(s)
- Jingxiong Lai
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
| | - You Huang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
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9
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Sudarshana KA, Sarma MJ, Radhakrishnan M, Chakravarty S, Srihari P, Mehta G. A protocol for directly accessing geminal C-4 diarylated pyrazol-5(4 H)-ones via tandem C-H aryne insertion and their inceptive neurobiological evaluation. Org Biomol Chem 2024; 22:714-719. [PMID: 38165701 DOI: 10.1039/d3ob01932b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Geminal C-4 diarylation of substituted pyrazol-5(4H)-ones with in situ generated arynes as the aryl source has been achieved in a one-flask operation. All the newly accessed C4-gem-diarylated pyrazolone entities were found to be non-cytotoxic with varying AChE enzyme inhibitory activities and BBB permeability attributes that augur well for further advancement towards CNS therapeutics for untreatable disorders.
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Affiliation(s)
- K A Sudarshana
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manas Jyoti Sarma
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India.
- School of Chemistry, University of Hyderabad, Hyderabad-500046, India.
| | - Mydhili Radhakrishnan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Sumana Chakravarty
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India
| | - Pabbaraja Srihari
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Hyderabad-500046, India.
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10
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Sánchez-Molpeceres R, Martín L, Esteban N, Miguel JA, Maestro A, Andrés JM. Enantioselective Amination of 4-Substituted Pyrazolones Catalyzed by Oxindole-Containing Thioureas and by a Recyclable Linear-Polymer-Supported Analogue in a Continuous Flow Process. J Org Chem 2024; 89:330-344. [PMID: 38096132 PMCID: PMC10777414 DOI: 10.1021/acs.joc.3c02069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024]
Abstract
A highly efficient organocatalytic amination of 4-substituted pyrazolones with azodicarboxylates mediated by a novel quinine-derived thiourea with a 3,3-diaryl-oxindole scaffold is reported. This synthetic method furnished 4-amino-5-pyrazolones in high yields and with excellent enantioselectivities (up to 97:3 er) at room temperature in short reaction times. Moreover, a linear-polymer-supported bifunctional thiourea, synthesized by reacting a bifunctional aromatic monomer (biphenyl) with isatin in superacidic media and further derivatization, was proven to be also an efficient heterogeneous organocatalyst for this α-amination reaction. The practical value of this process was demonstrated by the use of the immobilized catalyst in recycling experiments, maintaining the activity without additional reactivation, and in flow processes, allowing the synthesis of 4-amino-pyrazolone derivatives in a gram scale with high yield and enantioselectivity.
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Affiliation(s)
- Rodrigo Sánchez-Molpeceres
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Laura Martín
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Noelia Esteban
- CLiNuMat,
IU CINQUIMA y Departamento de Química Física y Química
Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Jesús A. Miguel
- CLiNuMat,
IU CINQUIMA y Departamento de Química Física y Química
Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - Alicia Maestro
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
| | - José M. Andrés
- SintACat,
IU CINQUIMA y Departamento de Química Orgánica, Facultad
de Ciencias, Universidad de Valladolid, Paseo Belén 7, Valladolid 47011, Spain
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11
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Kucharski DJ, Suchanek R, Kowalczyk R, Boratyński PJ. Development of Mefloquine-Based Bifunctional Secondary Amine Organocatalysts for Enantioselective Michael and Friedel-Crafts Reactions. J Org Chem 2024; 89:111-123. [PMID: 38069836 DOI: 10.1021/acs.joc.3c01791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
The chiral framework based on 11-aminomefloquine has been utilized for the first time to construct bifunctional organocatalysts. These catalysts demonstrate high enantioselectivity in both Michael additions and Friedel-Crafts reactions across a variety of substrates, achieving up to >99% ee. The distinctive feature is the incorporation of a secondary amine group, offering unique tight hydrogen-bonding capabilities in the protonated state, as supported by DFT computation. The diversity of these organocatalysts suggests their broad applicability across multiple reaction classes.
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Affiliation(s)
- Dawid J Kucharski
- Department of Organic and Medicinal Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 26, Wrocław 50-370, Poland
| | - Radosław Suchanek
- Department of Organic and Medicinal Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 26, Wrocław 50-370, Poland
| | - Rafał Kowalczyk
- Department of Bioorganic Chemistry Wrocław University of Technology, Wyb. Wyspiańskiego 26, Wrocław 50-370, Poland
| | - Przemysław J Boratyński
- Department of Organic and Medicinal Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 26, Wrocław 50-370, Poland
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12
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Wanner DM, Becker PM, Suhr S, Wannenmacher N, Ziegler S, Herrmann J, Willig F, Gabler J, Jangid K, Schmid J, Hans AC, Frey W, Sarkar B, Kästner J, Peters R. Cooperative Lewis Acid-1,2,3-Triazolium-Aryloxide Catalysis: Pyrazolone Addition to Nitroolefins as Entry to Diaminoamides. Angew Chem Int Ed Engl 2023; 62:e202307317. [PMID: 37358186 DOI: 10.1002/anie.202307317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 06/27/2023]
Abstract
Pyrazolones represent an important structural motif in active pharmaceutical ingredients. Their asymmetric synthesis is thus widely studied. Still, a generally highly enantio- and diastereoselective 1,4-addition to nitroolefins providing products with adjacent stereocenters is elusive. In this article, a new polyfunctional CuII -1,2,3-triazolium-aryloxide catalyst is presented which enables this reaction type with high stereocontrol. DFT studies revealed that the triazolium stabilizes the transition state by hydrogen bonding between C(5)-H and the nitroolefin and verify a cooperative mode of activation. Moreover, they show that the catalyst adopts a rigid chiral cage/pore structure by intramolecular hydrogen bonding, by which stereocontrol is achieved. Control catalyst systems confirm the crucial role of the triazolium, aryloxide and CuII , requiring a sophisticated structural orchestration for high efficiency. The addition products were used to form pyrazolidinones by chemoselective C=N reduction. These heterocycles are shown to be valuable precursors toward β,γ'-diaminoamides by chemoselective nitro and N-N bond reductions. Morphological profiling using the Cell painting assay identified biological activities for the pyrazolidinones and suggest modulation of DNA synthesis as a potential mode of action. One product showed biological similarity to Camptothecin, a lead structure for cancer therapy.
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Affiliation(s)
- Daniel M Wanner
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Patrick M Becker
- Universität Stuttgart, Institut für Theoretische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Simon Suhr
- Universität Stuttgart, Institut für Anorganische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Nick Wannenmacher
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Slava Ziegler
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Justin Herrmann
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Felix Willig
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Julia Gabler
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Khushbu Jangid
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Juliane Schmid
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Andreas C Hans
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Wolfgang Frey
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Biprajit Sarkar
- Universität Stuttgart, Institut für Anorganische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Johannes Kästner
- Universität Stuttgart, Institut für Theoretische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - René Peters
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
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13
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Guo F, Shan S, Gong X, Dai C, Quan Z, Cheng X, Fan X. Deuteration Degree-Controllable Methylation via a Cascade Assembly Strategy using Methylamine-Water as Methyl Source. Chemistry 2023; 29:e202301458. [PMID: 37222652 DOI: 10.1002/chem.202301458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 05/25/2023]
Abstract
We present a novel and effective photocatalytic method for the methylation of β-diketones with controllable degrees of deuterium incorporation via development of new methyl sources. By utilizing a methylamine-water system as the methyl precursor and a cascade assembly strategy for deuteration degree control, we synthesized methylated compounds with varying degrees of deuterium incorporation, showcasing the versatility of this approach. We examined a range of β-diketone substrates and synthesized key intermediates for drug and bioactive compounds with varying degrees of deuterium incorporation, ranging from 0 to 3. We also investigated and discussed the postulated reaction pathway. This work demonstrates the utility of readily available reagents, methylamines and water, as a new methyl source, and provides a simple and efficient strategy for the synthesis of degree-controllable deuterium-labelled compounds.
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Affiliation(s)
- Fuhu Guo
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China
- Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Shiquan Shan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xu Gong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Cancan Dai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhengjun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Xiamin Cheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xinyuan Fan
- Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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14
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Jiang J, Zhou J, Li Y, Peng C, He G, Huang W, Zhan G, Han B. Silver/chiral pyrrolidinopyridine relay catalytic cycloisomerization/(2 + 3) cycloadditions of enynamides to asymmetrically synthesize bispirocyclopentenes as PDE1B inhibitors. Commun Chem 2023; 6:128. [PMID: 37337043 DOI: 10.1038/s42004-023-00921-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/05/2023] [Indexed: 06/21/2023] Open
Abstract
Significant progress has been made in asymmetric synthesis through the use of transition metal catalysts combined with Lewis bases. However, the use of a dual catalytic system involving 4-aminopyridine and transition metal has received little attention. Here we show a metal/Lewis base relay catalytic system featuring silver acetate and a modified chiral pyrrolidinopyridine (PPY). It was successfully applied in the cycloisomerization/(2 + 3) cycloaddition reaction of enynamides. Bispirocyclopentene pyrazolone products could be efficiently synthesized in a stereoselective and economical manner (up to >19:1 dr, 99.5:0.5 er). Transformations of the product could access stereodivergent diastereoisomers and densely functionalized polycyclic derivatives. Mechanistic studies illustrated the relay catalytic model and the origin of the uncommon chemoselectivity. In subsequent bioassays, the products containing a privileged drug-like scaffold exhibited isoform-selective phosphodiesterase 1 (PDE1) inhibitory activity in vitro. The optimal lead compound displayed a good therapeutic effect for ameliorating pulmonary fibrosis via inhibiting PDE1 in vivo.
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Affiliation(s)
- Jing Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China
| | - Jin Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China
| | - Yang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China
| | - Gu He
- State Key Laboratory of Biotherapy and Department of Pharmacy, West China Hospital Sichuan University, Chengdu, 610041, P.R. China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China.
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, P.R. China.
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15
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Bania N, Barman D, Pan SC. Organocatalytic Asymmetric Inverse-Electron-Demand Diels-Alder Reaction between Alkylidene Pyrazolones and Allyl Ketones: Access to Tetrahydropyrano[2,3- c]pyrazoles. J Org Chem 2023. [PMID: 37262311 DOI: 10.1021/acs.joc.3c01063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Herein we report a catalytic asymmetric inverse-electron-demand Diels-Alder reaction between alkylidene pyrazolones and allyl ketones. Allyl ketone gets activated by a bifunctional thiourea catalyst and acts as a dienolate in this reaction. The trisubstituted tetrahydropyrano[2,3-c]pyrazoles were obtained in moderate to good yields with high diastereo- and enantioselectivities. Few applications, including a decarbonylation reaction, have been demonstrated.
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Affiliation(s)
- Nimisha Bania
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Dipankar Barman
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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16
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Li G, Zhang H, Zhang G, Wei B, Liu B, Song H, Li Q, Ban S. Asymmetric Synthesis of Spiropyrazolone-Fused Dihydrofuran-naphthoquinones Bearing Contiguous Stereocenters via a Michael Addition/Chlorination/Nucleophilic Substitution Sequence. J Org Chem 2023; 88:4809-4813. [PMID: 36945756 DOI: 10.1021/acs.joc.2c03013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
An enantioselective synthesis of spiropyrazolone-fused dihydrofuran-naphthoquinones is first demonstrated via a Michael addition/Chlorination/Nucleophilic substitution sequence. The reactions of 2-hydroxy-1,4-naphthoquinone and α,β-unsaturated pyrazolones in the presence of the cinchona alkaloid derived hydrogen-bonding catalyst and NCS provide spiropyrazolone-fused 2,3-dihydronaphtho[2,3-b]furan-4,9-diones bearing contiguous stereocenters, of which one is the spiro quaternary stereocenter in high yields with exclusive diastereoselectivity and good to excellent enantioselectivities.
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Affiliation(s)
- Gaihui Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Hongyu Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Guoshun Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Bei Wei
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Bin Liu
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Heng Song
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Qingshan Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
- Shanxi Key laboratory of Chronic Inflammatory Targeted Drugs, Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi 030619, China
| | - Shurong Ban
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi 030001, China
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17
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Gil-Ordóñez M, Martín L, Maestro A, Andrés JM. Organocatalytic asymmetric synthesis of oxazolidino spiropyrazolinones via N, O-acetalization/aza Michael addition domino reaction between N-Boc pyrazolinone ketimines and γ-hydroxyenones. Org Biomol Chem 2023; 21:2361-2369. [PMID: 36847380 DOI: 10.1039/d2ob02290g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A squaramide-catalyzed asymmetric N,O-acetalization/aza Michael addition domino reaction between N-Boc ketimines derived from pyrazolin-5-ones and γ-hydroxyenones has been developed for the construction of pyrazolinone embedded spirooxazolidines. A hydroquinine derived bifunctional squaramide catalyst was found to be the most effective for this cascade spiroannulation. This new protocol allows the generation of two stereocenters and the desired products are obtained in good yields with moderate to good diastereoselectivities (up to 3.3 : 1 dr) and high enantioselectivities (up to >99% ee) from a range of substituted N-Boc pyrazolinone ketimines and γ-hydroxyenones. The developed protocol is amenable for a scale-up reaction.
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Affiliation(s)
- Marta Gil-Ordóñez
- GIR-SintACat-Instituto Universitario CINQUIMA y Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, 47011 Valladolid, Spain.
| | - Laura Martín
- GIR-SintACat-Instituto Universitario CINQUIMA y Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, 47011 Valladolid, Spain.
| | - Alicia Maestro
- GIR-SintACat-Instituto Universitario CINQUIMA y Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, 47011 Valladolid, Spain.
| | - José M Andrés
- GIR-SintACat-Instituto Universitario CINQUIMA y Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo Belén 7, 47011 Valladolid, Spain.
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18
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Eyüp Başaran. Schiff Base Derivatives Based on Ampyrone as Promising Acetylcholinesterase Inhibitors: Synthesis, Spectral Characterization, Biological Activity, and SwissADME Predictions. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162023010065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Gupta A, Iqbal S, Roohi, Hussain MK, Zaheer MR, Shankar K. Visible Light-Promoted Green and Sustainable Approach for One-Pot Synthesis of 4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols), In Vitro Anticancer Activity, and Molecular Docking with Covid-19 M pro. ACS OMEGA 2022; 7:34583-34598. [PMID: 36188265 PMCID: PMC9520760 DOI: 10.1021/acsomega.2c04506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/02/2022] [Indexed: 08/25/2023]
Abstract
A visible light-promoted, efficient, green, and sustainable strategy has been adopted to unlatch a new pathway toward the synthesis of a library of medicinally important 4,4'-(arylmethylene)bis(1H-pyrazol-5-ols) moieties using substituted aromatic aldehydes and sterically hindered 3-methyl-1-phenyl-2-pyrazoline-5-one in excellent yield. This reaction shows high functional group tolerance and provides a cost-effective and catalyst-free protocol for the quick synthesis of biologically active compounds from readily available substrates. Synthesized compounds were characterized by spectroscopic techniques such as IR, 1HNMR, 13CNMR, and single-crystal XRD analysis. All the synthesized compounds were evaluated for their antiproliferative activities against a panel of five different human cancer cell lines and compared with Tamoxifen using MTT assay. Compound 3m exhibited maximum antiproliferative activity and was found to be more active as compared to Tamoxifen against both the MCF-7 and MDA-MB-231 cell lines with an IC50 of 5.45 and 9.47 μM, respectively. A molecular docking study with respect to COVID-19 main protease (Mpro) (PDB ID: 6LU7) has also been carried out which shows comparatively high binding affinity of compounds 3f and 3g (-8.3 and -8.8 Kcal/mole, respectively) than few reported drugs such as ritonavir, remdesivir, ribacvirin, favipiravir, hydroxychloroquine, chloroquine, and olsaltamivir. Hence, it reveals the possibility of these compounds to be used as effective COVID-19 inhibitors.
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Affiliation(s)
- Anamika Gupta
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
| | - Safia Iqbal
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
| | - Roohi
- Protein
Research Laboratory, Department of Bioengineering, Integral University, Lucknow226026, Uttar Pradesh, India
| | - Mohd. Kamil Hussain
- Department
of Chemistry, Govt. Raza PG College, Rampur24901, Uttar Pradesh, India
| | - Mohd. Rehan Zaheer
- Department
of Chemistry, R.M.P.S.P. Girls Post Graduate
College, Basti272301, Uttar Pradesh, India
| | - Krapa Shankar
- Sun
Pharmaceutical industries Ltd, Sarhaul, Sector 18, Gurgaon, Haryana122015, India
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20
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Phakdeeyothin K, Viriyanukul T, Udomsasporn K, Phomphrai K, Yotphan S. Metal‐Free Aminomethylation of Pyrazolones: Direct Access to 4‐Aminomethylated Pyrazolones. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kunita Phakdeeyothin
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University 10400 Bangkok Thailand
| | - Tarm Viriyanukul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University 10400 Bangkok Thailand
| | - Kwanchanok Udomsasporn
- Department of Materials Science and Engineering School of Molecular Science and Engineering Vidyasirimedhi Instituteof Science and Technology (VISTEC) 21210 Wangchan Rayong Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering School of Molecular Science and Engineering Vidyasirimedhi Instituteof Science and Technology (VISTEC) 21210 Wangchan Rayong Thailand
| | - Sirilata Yotphan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University 10400 Bangkok Thailand
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21
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Merugu SR, Cherukupalli S, Karpoormath R. An Overview on Synthetic and Medicinal Perspectives of [1,2,4]Triazolo[1,5-a]pyrimidine Scaffold. Chem Biodivers 2022; 19:e202200291. [PMID: 35946991 DOI: 10.1002/cbdv.202200291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/02/2022] [Indexed: 11/08/2022]
Abstract
[1,2,4]Triazolo[1,5-a]pyrimidine is an important heterocyclic scaffold known to have a wide range of pharmacological activities such as anticancer, antimicrobial, anti-tubercular, CB2 cannabinoid agonists, feticide, and adenosine antagonists. Several clinical trials and marketed drugs such as Trapidil, Essramycin, Pyroxsulam, DSM-265, Flumetsulam, GNF-6702, and Cevipabulin indicate the potential of [1,2,4]triazolo[1,5-a]pyrimidine moiety with various functional groups in medicinal chemistry. Herein, we represent a concise report focusing on the synthetic strategies used for diversely substituted [1,2,4]triazolo[1,5-a]pyrimidine analogs and their pharmacological applications. To the best of our knowledge, since 1980, we are the first to write a review on this emerging scaffold, which reveals the synthetic strategies, and pharmacological activities of differently substituted [1,2,4]triazolo[1,5-a]pyrimidine with special emphasis on structure-activity relationship studies.
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Affiliation(s)
- Srinivas Reddy Merugu
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
| | - Srinivasulu Cherukupalli
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
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22
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Beukeaw D, Rattanasupaponsak N, Kittikool T, Phakdeeyothin K, Phomphrai K, Yotphan S. Metal‐Free Site‐Selective Direct Oxidative Phosphorylation of Pyrazolones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Liu RM, Zhang M, Han XX, Liu XL, Pan BW, Tian YP, Peng LJ, Yuan WC. Catalytic asymmetric Michael/cyclization reaction of 3-isothiocyanato thiobutyrolactone: an approach to the construction of a library of bispiro[pyrazolone-thiobutyrolactone] skeletons. Org Biomol Chem 2022; 20:5060-5065. [PMID: 35703322 DOI: 10.1039/d2ob00773h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we demonstrate the first example of 3-isothiocyanato thiobutyrolactone serving as a useful building block in the Michael/cyclization reaction with alkylidene pyrazolones for the enantioselective construction of optically active structural bispiro[pyrazolone-thiobutyrolactone] skeletons containing three contiguous stereocenters with two spiroquaternary stereocenters. These products were smoothly afforded in up to 90% yield, >20 : 1 dr and >99% ee with chiral squaramide as the catalyst under mild conditions. Notably, this is also the first example of the merger of a spirocyclic pyrazolone scaffold with a spirocyclic thiobutyrolactone scaffold, potentially useful in medicinal chemistry.
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Affiliation(s)
- Ren-Ming Liu
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Min Zhang
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xiao-Xue Han
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Bo-Wen Pan
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - You-Ping Tian
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Li-Jun Peng
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food, Guizhou University, Guiyang, Guizhou 550025, P. R. China.
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, School of Pharmacy, Chengdu University, Chengdu 610106, China
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24
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ghosh SK. β‐Silylmethylene malonate as versatile reagent in organic synthesis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- sunil kumar ghosh
- Bhabha Atomic Research Centre Bio-Organic Division Trombay 400085 Mumbai INDIA
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25
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Tian Z, Jiang J, Yan ZH, Luo QQ, Zhan G, Huang W, Li X, Han B. Catalytic asymmetric [3 + 2] cycloaddition of pyrazolone-derived MBH carbonate: highly stereoselective construction of the bispiro-[pyrazolone-dihydropyrrole-oxindole] skeleton. Chem Commun (Camb) 2022; 58:5363-5366. [PMID: 35411363 DOI: 10.1039/d2cc00618a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A catalytic asymmetric construction of the bispiro[pyrazolone-dihydropyrrole-oxindole] skeleton catalyzed by chiral DMAP-derived catalyst was successfully achieved by employing recently explored pyrazolone-derived MBH carbonate in high yields with excellent stereoselectivities. The proposed transition state indicated that the intermolecular hydrogen bonds and π-π interactive forces played an essential role in stereoselective chemical transformation.
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Affiliation(s)
- Zhou Tian
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Jing Jiang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Zhen-Hui Yan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Qing-Qing Luo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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26
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Warghude PK, Bhowmick A, Bhat RG. Direct Access to Spirooxindole Dihydropyrrole Fused Pyrazolones and Bis-Spiropyrazolone Derivatives. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Carceller-Ferrer L, González del Campo A, Vila C, Blay G, Muñoz MC, Pedro JR. Catalytic Diastereo- and Enantioselective Synthesis of Tertiary Trifluoromethyl Carbinols through a Vinylogous Aldol Reaction of Alkylidenepyrazolones with Trifluoromethyl Ketones. J Org Chem 2022; 87:4538-4549. [PMID: 35293756 PMCID: PMC8981347 DOI: 10.1021/acs.joc.1c02817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Indexed: 11/29/2022]
Abstract
A diastereo- and enantioselective organocatalytic aldol reaction between alkylidenepyrazolones and trifluoromethyl ketones leading to chiral tertiary alcohols bearing a trifluoromethyl group is presented. The methodology is based on the use of a bifunctional organocatalyst in order to activate the γ-hydrogen atoms of the alkylidenepyrazolone nucleophile and the carbonyl group of the trifluoromethylarylketone providing highly functionalized trifluoromethyl alcohols with moderate yields, excellent diastereoselectivity, and moderate to good enantioselectivity. Experiments monitoring the conversion by 1H NMR and the enantiomeric excess by HPLC with the reaction time showed that full conversion of the starting materials is not achieved and that the enantiomeric excess decreases upon extended times, probably due to the reversibility of the reaction.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Aleix González del Campo
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M. Carmen Muñoz
- Departament
de Física Aplicada, Universitat Politècnica
de València, Camino de Vera s/n, 46022 València, Spain
| | - José R. Pedro
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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28
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Qin R, Yu TT, Liu SJ, Wang YC, Luo ML, Chen BH, Zhao Q, Huang W. Asymmetric [4 + 2] Annulation of Cyclobutenones and Pyrazolone 4,5-Diones: Access to Novel δ-Lactone-Fused Spiropyrazolones. J Org Chem 2022; 87:5358-5370. [PMID: 35324180 DOI: 10.1021/acs.joc.2c00187] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Although numerous chiral pyrazolones with a six-membered spirocyclic center at the C4 position have been developed, the asymmetric construction of six-membered oxa-spiropyrazolones is still a challenging task in organic synthesis. Herein, we describe the [4 + 2] annulation of cyclobutanones and pyrazoline-4,5-diones for the efficient synthesis of δ-lactone-fused spiropyrazolone derivatives with generally high yields and good enantioselectivities under mild conditions. The successful scale-up synthesis and further transformation of the final product highlight the practicality and reliability of this reaction.
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Affiliation(s)
- Rui Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ting-Ting Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shuai-Jiang Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - You-Cheng Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Meng-Lan Luo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Ben-Hong Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medical Sciences, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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29
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Bao X, Wang X, Tian JM, Ye X, Wang B, Wang H. Recent advances in the applications of pyrazolone derivatives in enantioselective synthesis. Org Biomol Chem 2022; 20:2370-2386. [PMID: 35234777 DOI: 10.1039/d1ob02426d] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Pyrazolones and pyrazoles, featuring nitrogen-nitrogen bonds, are two of the most important classes of heterocycles, owing to their widespread occurrence in medicinal chemistry and functional materials. The last decade has witnessed a rapid increase in the construction of chiral pyrazolone and pyrazole derivatives, with the application of pyrazolone derivatives as powerful synthons. Since our last review in 2018, a large number of new achievements has emerged in this area, requiring a timely update. Thus, this review summarizes these elegant achievements based on the multiple reactive sites of different pyrazolone synthons. In addition, important mechanisms and interesting biological investigations relating to the corresponding products are also discussed.
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Affiliation(s)
- Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xingyue Wang
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Jin-Miao Tian
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xinyi Ye
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 112024, China.
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
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30
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Chen J, Zhang Y, Zhu DY, Zhang XJ, Yan M. Construction of Chiral Quaternary Carbon Stereocenters by Asymmetric Michael Addition of 4‐Amido‐5‐hydroxylpyrazoles to Ethylene Sulfonyl Fluoride. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jie Chen
- Sun Yat-Sen University School of Pharmaceutical Sciences CHINA
| | - Yue Zhang
- Sun Yat-Sen University School of Pharmaceutical Sciences CHINA
| | - Dong-yu Zhu
- Sun Yat-Sen University School of Pharmaceutical Sciences CHINA
| | - Xue-jing Zhang
- Sun Yat-Sen University School of Pharmaceutical Sciences No 132 Donghuanxi Road, Guangzhou Mega Center North 510006 guangzhou CHINA
| | - Ming Yan
- Sun Yat-Sen University School of Pharmaceutical Sciences CHINA
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31
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Wang G, Zhang S, Ding T, Li P, Sun Z. Highly Site‐ and Enantioselective
N‐H
Functionalization of N‐ Monosubstituted Aniline Derivatives Affording Pyrazolones Bearing a Quaternary Stereocenter. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guan‐Jun Wang
- Shanghai&School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Shu‐Yu Zhang
- Shanghai&School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Tong‐Mei Ding
- Shanghai&School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau Macao 999078 China
| | - Zhen‐Liang Sun
- Southern Medical University Affiliated Fengxian Hospital Shanghai China 201499
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32
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Dharani S, Kalaiarasi G, Lynch VM, Srinivasan K, Prabhakaran R. C–H activation and subsequent C–C bond formation in rigid alkenes catalyzed by Ru( iii) metallates. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00317a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Pyrazolone derived Ru(iii) complexes were synthesized and applied as catalysts in the C–H activation reaction of α,β-unsaturated carbonyl compounds. In addition to Heck type coupling, ethanol mediated ethoxylation was also witnessed.
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Affiliation(s)
- S. Dharani
- Department of Chemistry, Bharathiar University, Coimbatore 641046, India
| | - G. Kalaiarasi
- Department of Chemistry, Bharathiar University, Coimbatore 641046, India
| | - Vincent M. Lynch
- Department of Chemistry, University of Texas, Austin, TX 78712-1224, USA
| | - K. Srinivasan
- Department of Physics, Bharathiar University, Coimbatore 641046, India
| | - R. Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore 641046, India
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33
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Wang B, Wei X, Huang Y, Wang W, Wei S, Qu J. Asymmetric [3 + 2] spiroannulation of pyrazolone-derived Morita–Baylis–Hillman carbonates with alkynyl ketones: facile access to spiro[cyclopentadiene-pyrazolone] scaffolds. Chem Commun (Camb) 2022; 58:9504-9507. [DOI: 10.1039/d2cc02963d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tertiary amine-catalyzed asymmetric [3 + 2] spiroannulation reaction of pyrazolone-derived Morita–Baylis–Hillman carbonates with alkynyl ketones was achieved under mild conditions. This protocol offers a facile approach to chiral spiro[cyclopentadiene-pyrazolone]...
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34
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Tang J, Yan ZH, Zhan G, Yang QQ, Chen YY, Li X, Huang W. Visible-Light-Mediated Sequential Wolff Rearrangement and Staudinger Cycloaddition Enabling Assembly of Spiro-Pyrazolone-β-Lactams. Org Chem Front 2022. [DOI: 10.1039/d2qo00742h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible-light-mediated sequential Wolff rearrangement and Staudinger cycloaddition for the assembly of valuable spiro-pyrazolone-β-lactams for the first time is disclosed by utilizing in situ generated ketenes and pyrazolone ketimines. This powerful...
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35
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Ding H, Wang Z, Qu C, Lv Y, Zhao X, Wei W. Visible-light-mediated multi-component carbene transfer reactions of α-diazoesters to construct multisubstituted pyrazoles and 1,3-dicarbonyl derivatives. Org Chem Front 2022. [DOI: 10.1039/d2qo01082h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible-light-promoted strategy has been developed for the assembly of multisubstituted pyrazoles and 1,3-dicarbonyl derivatives via a multi-component carbene transfer reaction of α-diazoesters.
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Affiliation(s)
- Hongyu Ding
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, P.R. China
| | - Zhiwei Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, P.R. China
| | - Chengming Qu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, P.R. China
| | - Yufen Lv
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, P.R. China
| | - Xiaohui Zhao
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, P.R. China
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, P.R. China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, P.R. China
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36
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Han Z, Jin J, Woldegiorgis AG, Lin X. Organocatalytic diastereo- and enantioselective conjugate addition of pyrazol-3-ones to 3-trifluoroethylidene oxindoles with a newly developed squaramide catalyst. RSC Adv 2022; 12:27012-27021. [PMID: 36320851 PMCID: PMC9490773 DOI: 10.1039/d2ra05088a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/12/2022] [Indexed: 11/21/2022] Open
Abstract
An efficient organocatalytic conjugated addition reaction of pyrazol-3-ones with 3-trifluoroethylidene oxindoles has been developed for the synthesis of enantioenriched triflouromethylated indolin-2-ones bearing adjacent tertiary chiral centers in good yields and good to excellent diastereo- and enantioselectivities. The use of a newly developed chiral spirobiindane-derived squaramide catalyst is essential in achieving high diastereo- and enantioselectivities. Organocatalytic diastereo- and enantioselective conjugate addition of pyrazol-3-ones to 3-trifluoroethylidene oxindoles with a newly developed squaramide catalyst has been developed.![]()
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Affiliation(s)
- Zhao Han
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jiaping Jin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | | | - Xufeng Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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37
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Sambhaji Vagh S, Hou B, Edukondalu A, Wang P, Chen Y, Lin W. Phosphine‐Mediated Rauhut‐Currier‐Type/Acyl Transfer/Wittig Strategy for Synthesis of Spirocyclopenta[
c
]chromene‐Indolinones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sandip Sambhaji Vagh
- Department of Chemistry National Taiwan Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, R.O.C
| | - Bo‐Jhih Hou
- Department of Chemistry National Taiwan Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, R.O.C
| | - Athukuri Edukondalu
- Department of Chemistry National Taiwan Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, R.O.C
| | - Pin‐Ching Wang
- Department of Chemistry National Taiwan Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, R.O.C
| | - Yi‐Ru Chen
- Department of Chemistry National Taiwan Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, R.O.C
| | - Wenwei Lin
- Department of Chemistry National Taiwan Normal University 88, Sec. 4, Tingchow Road Taipei 11677 Taiwan, R.O.C
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38
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Lu Y, Li J, Gu W, Li N, Zha Z, Wang Z. Lewis acid-catalyzed enantioselective Friedel-Crafts reaction of pyrazole-4,5-diones with β-naphthol. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.12.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Shao BR, Shi L, Zhou YG. Asymmetric hydrogenation of O-/N-functional group substituted arenes. Chem Commun (Camb) 2021; 57:12741-12753. [PMID: 34762082 DOI: 10.1039/d1cc04722a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric hydrogenation of aromatic compounds represents one of the most straightforward synthetic methods to construct important chiral cyclic skeletons that are often found in biologically active agents and natural products. So far, the most successful examples in this field are largely limited to aromatics containing alkyl and aryl substituted groups due to the poor functional-group tolerance of hydrogenation. Direct asymmetric hydrogenation of functionalized aromatics provides enormous potential for expanding the structural diversity of reductive products of planar aromatic compounds, which is highly desirable and has not been well studied. This feature article focuses on the progress in catalytic asymmetric hydrogenation and transfer hydrogenation of O/N substituted arenes.
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Affiliation(s)
- Bing-Ru Shao
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China.
| | - Lei Shi
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China.
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.
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40
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Miao A, Zhou M, Chen J, Wang S, Hao W, Tu S, Jiang B. Pd‐Catalyzed Asymmetric Addition of Arylboronic Acids to Pyrazolinone Ketimines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- An‐Qi Miao
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Meng Zhou
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Jing‐Long Chen
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Shi‐Chao Wang
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Wen‐Juan Hao
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
| | - Bo Jiang
- School of Chemistry and Material Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University Xuzhou 211116 People's Republic of China
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41
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Woldegiorgis AG, Lin X. Recent advances in the asymmetric phosphoric acid-catalyzed synthesis of axially chiral compounds. Beilstein J Org Chem 2021; 17:2729-2764. [PMID: 34876929 PMCID: PMC8609246 DOI: 10.3762/bjoc.17.185] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/03/2021] [Indexed: 11/23/2022] Open
Abstract
In recent years, the synthesis of axially chiral compounds has received considerable attention due to their extensive application as biologically active compounds in medicinal chemistry and as chiral ligands in asymmetric catalysis. Chiral phosphoric acids are recognized as efficient organocatalysts for a variety of enantioselective transformations. In this review, we summarize the recent development of chiral phosphoric acid-catalyzed synthesis of a wide range of axially chiral biaryls, heterobiaryls, vinylarenes, N-arylamines, spiranes, and allenes with high efficiency and excellent stereoselectivity.
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Affiliation(s)
| | - Xufeng Lin
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
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42
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Wang GJ, Wang L, Zhu GD, Zhou J, Bai HY, Zhang SY. Organocatalytic Direct Asymmetric Indolization from Anilines by Enantioselective [3 + 2] Annulation. Org Lett 2021; 23:8434-8438. [PMID: 34699247 DOI: 10.1021/acs.orglett.1c03162] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report the efficient syntheses of chiral tetrahydroindole pyrazolinones by the asymmetric [3 + 2] cascade cyclizations (indolizations) of simple aniline derivatives with pyrazolinone ketimines as 2C synthons. The chiral phosphoric-acid-catalyzed system uses a concerted π-π interaction/dual H-bond control strategy to catalytically direct the asymmetric aniline, which undergoes a highly chemo-, regio-, and enantioselective [3 + 2] cascade annulation, furnishing a series of optically active tetra-hydroindole pyrazolinones with two contiguous chiral aza-quaternary carbon centers in excellent yields with excellent enantioselectivities. This method features a relatively broad substrate scope for amines and 2-naphthylamines and highlights the emerging value of direct chiral indolizations from simple amine sources in organic synthesis.
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43
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Shchegolkov EV, Burgart YV, Matsneva DA, Borisevich SS, Kadyrova RA, Orshanskaya IR, Zarubaev VV, Saloutin VI. Polyfluoroalkylated antipyrines in Pd-catalyzed transformations. RSC Adv 2021; 11:35174-35181. [PMID: 35493195 PMCID: PMC9042801 DOI: 10.1039/d1ra06967e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/21/2021] [Indexed: 01/08/2023] Open
Abstract
In the direct C–H arylation with arylhalogenides in the presence of Pd(OAc)2, trifluoromethyl-containing antipyrine reacts very slowly and incompletely owing to the low nucleophilicity of its C4 center. However, it was effective in modifying polyfluoroalkyl-substituted 4-bromo- and 4-iodo antipyrines by the Suzuki and Sonogashira reactions. It was established that using Pd2(dba)3 as catalyst and XPhos as phosphine ligand was the optimal catalytic system for the synthesis of 4-aryl- and 4-phenylethynyl-3-polyfluoroalkyl-antipyrines. Moreover, iodo-derivatives as the initial reagents were found to be more advantageous compared to bromo-containing analogs. It was found that 4-phenylethynyl-5-CF3-antipyrine has a moderate activity against the influenza virus A/Puerto Rico/8/34 (H1N1) and 4-iodo-5-CF3-antipyrine reveals a weak activity against the vaccine virus (strain Copenhagen) and bovine diarrhea virus (strain VC-1). Peculiarities of heterocyclic systems with electron-withdrawing groups (polyfluoroalkyl-containing antipyrines) in Pd-catalyzed C–H arylation and cross-coupling reactions.![]()
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Affiliation(s)
- Evgeny V Shchegolkov
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Yanina V Burgart
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Daria A Matsneva
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
| | - Sophia S Borisevich
- Ufa Institute of Chemistry, Russian Academy of Sciences 71 October Ave. Ufa 450054 Russia
| | - Renata A Kadyrova
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Iana R Orshanskaya
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Vladimir V Zarubaev
- Saint Petersburg Pasteur Research Institute of Epidemiology and Microbiology 14 Mira St. Saint-Petersburg 197101 Russia
| | - Victor I Saloutin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences S. Kovalevskoi St., 22 Ekaterinburg 620990 Russia
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44
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Torán R, Miguélez R, Sanz‐Marco A, Vila C, Pedro JR, Blay G. Asymmetric Addition and Cycloaddition Reactions with Ylidene‐Five‐Membered Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ricardo Torán
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Rubén Miguélez
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Amparo Sanz‐Marco
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - José R. Pedro
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica Universitat de València C/Dr. Moliner 50 46100- Burjassot (València) Spain
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45
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Carceller-Ferrer L, Vila C, Blay G, Muñoz MC, Pedro JR. Catalytic Diastereo- and Enantioselective Vinylogous Mannich Reaction of Alkylidenepyrazolones to Isatin-Derived Ketimines. Org Lett 2021; 23:7391-7395. [PMID: 34553948 PMCID: PMC8491163 DOI: 10.1021/acs.orglett.1c02571] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
![]()
A valuable organocatalytic
vinylogous Mannich reaction between
alkylidenepyrazolones and isatin-derived ketimines has been successfully
established. Squaramide organocatalyst, prepared from quinine, catalyzed
the diastereo- and enantioselective vinylogous Mannich addition, affording
a range of aminooxindole-pyrazolone adducts (24 examples) with excellent
outcomes: up to 98% yield with complete diastereoselectivity and excellent
enantioselectivity (up to 99% ee). Additionally, different synthetic
transformations were performed with the chiral pyrazolone-oxindole
adducts.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
| | - José R Pedro
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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46
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Khairnar PV, Su YH, Edukondalu A, Lin W. Enantioselective Synthesis of Spiropyrazolone-Fused Cyclopenta[ c]chromen-4-ones Bearing Five Contiguous Stereocenters via (3+2) Cycloaddition. J Org Chem 2021; 86:12326-12335. [PMID: 34346685 DOI: 10.1021/acs.joc.1c01215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An enantioselective synthesis of spiropyrazolone-fused cyclopenta[c]chromen-4-ones is demonstrated via a (3+2) cycloaddition reaction. The reactions of 3-homoacylcoumarins and α,β-unsaturated pyrazolones in the presence of the cinchona-alkaloid derived hydrogen-bonding catalyst provide aforementioned spiropyrazolone-chromenone adducts bearing five contiguous stereocenters, of which one is the spiro all-carbon quaternary stereocenter in high yields (up to 98%) with good to excellent stereoselectivities (>25:1 dr and up to 99% ee). This one-pot methodology could also be practically demonstrated on a gram-scale with similar efficacy.
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Affiliation(s)
- Pankaj V Khairnar
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan R.O.C
| | - Yin-Hsiang Su
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan R.O.C
| | - Athukuri Edukondalu
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan R.O.C
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan R.O.C
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47
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Li D, Zhang W, Zhang S, Sun W, Zhao J, Wang B, Qu J, Zhou Y. Palladium-Catalyzed Asymmetric Trifluoromethylated Allylic Alkylation of Pyrazolones Enabled by α-(Trifluoromethyl)alkenyl Acetates. Org Lett 2021; 23:5804-5808. [PMID: 34279113 DOI: 10.1021/acs.orglett.1c01957] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The first asymmetric trifluoromethylated allylic alkylation of pyrazolones using α-(trifluoromethyl)alkenyl acetates as a novel trifluoromethylated allylation reagent is described, affording various functionalized chiral pyrazolones containing a trifluoromethylated allyl substituent in high yields with excellent regio-/enantio-/diastereoselectivities. Mechanistically, the double-bond migration of α-(trifluoromethyl)alkenyl acetates in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene is initial and interesting step. More importantly, this study is of significance in providing a novel and widely applicable trifluoromethyl-containing allylation reagent.
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Affiliation(s)
- Dong Li
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Wande Zhang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Shuaibo Zhang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Wuding Sun
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Jinfeng Zhao
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Yuhan Zhou
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
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48
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Leyton A, Rabanal‐León WA, Murillo‐López JA, Belmar J, Concepción O, Torre AF, Muñiz FM, Báez R, Jiménez CA. Novel 2‐Pyrazolin‐5‐one Derivative through Unforeseen Orthoamide Intermediate: Mechanistic Insights on Isocyanide Based [4+1] Cycloaddition. ChemistrySelect 2021. [DOI: 10.1002/slct.202101929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ariel Leyton
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Walter A. Rabanal‐León
- Departamento de Química Analítica e Inorgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Juliana Andrea Murillo‐López
- Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andres Bello Autopista Concepción-Talcahuano 7100 Talcahuano Chile
| | - Julio Belmar
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Odette Concepción
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Alexander F. Torre
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Francisco M. Muñiz
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Reynier Báez
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
| | - Claudio A. Jiménez
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad de Concepción Edmundo Larenas 129 Concepción P.C. 4070371 Chile
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49
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Xu H, Hong R, Weng MY, Huang RL, Wang GW, Zhang Z. Regiodivergent Synthesis of 4,5'- and 4,4'-Imidazolinyl Spiropyrazolones from 4-Alkylidene Pyrazolones and Amidines. Org Lett 2021; 23:5305-5310. [PMID: 34213352 DOI: 10.1021/acs.orglett.1c01475] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The solvent-free reaction of 4-alkylidene pyrazolones with amidines can furnish 4,5'-imidazolinyl spiropyrazolones in good to excellent yields when promoted by N-iodosuccinimide under solvent-free ball-milling conditions, whereas it almost exclusively affords 4,4'-imidazolinyl spiropyrazolones if mediated by N-bromosuccinimide in heated toluene. On the basis of this switchable cyclization strategy, a powerful metal-free method for regioselective and diastereoselective synthesis of structurally diverse 4,5'- and 4,4'-imidazolinyl spiropyrazolones has been successfully developed.
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Affiliation(s)
- Hui Xu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.,CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Ran Hong
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China
| | - Ming-Yue Weng
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China
| | - Rong-Lu Huang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China
| | - Guan-Wu Wang
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Ze Zhang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China
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50
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Sulfide‐Catalyzed Diastereoselective Spirocyclopropanation: Constructing Spiro‐cyclopropanyl‐pyrazolones From α‐Arylidenepyrazolones. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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