1
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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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2
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Boutadghart T, Ghailane R. A molecular electron density theory study of asymmetric Diels-Alder [4 + 2] reaction's mechanism of furan with three substituted alkynes (5-R substituted-3-(3-(phenylsulfonyl)-propioloyl)-oxazolidin-2-one). J Mol Model 2023; 29:290. [PMID: 37612461 DOI: 10.1007/s00894-023-05665-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 07/13/2023] [Indexed: 08/25/2023]
Abstract
CONTEXT The [4 +2 ] cycloaddition reactions between furan and three substituted alkynes (5-R-substituted-3-(3-(phenylsulfonyl)-propioloyl)-oxazolidin-2-one) have been investigated using the MEDT approach. Reactivity indices, reaction pathways, and activation energies are calculated. In an investigation of conceptual DFT indices, furan acts as a nucleophile, while the three substituted alkynes (5-R-substituted-3-(3-(phenylsulfonyl)-propioloyl)-oxazolidin-2-one) function as electrophiles in this reaction. The cycloaddition is regioiselective, as demonstrated by the activation and reaction energies, in clear agreement with the experiment's results. Hetero Diels-Alder [4 + 2] cycloadditions occur following a non-concerted two stages one-step molecular mechanism. METHODS For the purpose of this study, all calculations were performed using the Gaussian 09 software. Optimization was achieved through Berny's computational gradient optimization method, employing the B3LYP functional and the 6-31G(d) basis set. Analysis of both local and global reactivity indices provided insights into the reactivity tendencies of the reactants, distinguishing between electrophilic and nucleophilic characteristics via Parr functions. Frequency calculations were employed to identify and characterize stationary points, with transition states indicated by a single imaginary frequency and positive values of all frequencies for reactants and product. The electron localization function (ELF) was investigated using the Multiwfn software within the context of topological analyses.
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Affiliation(s)
- Tarik Boutadghart
- Laboratory of Organic Chemistry, Catalysis and Environment, Unit of Theoretical Chemistry and Modeling, Faculty of Sciences, University of Ibn Tofail, Po Box 133, 14000, Kenitra, Morocco
| | - Rachida Ghailane
- Laboratory of Organic Chemistry, Catalysis and Environment, Unit of Theoretical Chemistry and Modeling, Faculty of Sciences, University of Ibn Tofail, Po Box 133, 14000, Kenitra, Morocco.
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3
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Tang L, Luo Y, Sheng C, Xie F, Zhang W. Cu-Catalyzed Asymmetric Kinetic Boron Conjugate Addition of γ-Substituted α,β-Unsaturated γ-Lactams. Angew Chem Int Ed Engl 2023; 62:e202304640. [PMID: 37070236 DOI: 10.1002/anie.202304640] [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: 04/01/2023] [Revised: 04/15/2023] [Accepted: 04/17/2023] [Indexed: 04/19/2023]
Abstract
Chiral α,β-unsaturated γ-lactams bearing simple γ- substituents are found in biologically active molecules and natural products, however, their synthesis still remains difficult. Herein, we report an efficient kinetic resolution (KR) of γ-substituted α,β-unsaturated γ-lactams via a Cu-catalyzed asymmetric boron conjugate addition, which also leads to the efficient synthesis of chiral β-hydroxy-γ-lactams with β,γ-stereogenic carbon centers. The KR proceeded smoothly with a wide range of γ-alkyl or aryl substituted substrates including those bearing aromatic heterocycles and different N-protected substrates in up to 347 of s value. Their highly versatile transformations, synthetic utility in biologically active molecules, and inhibitory activities against cisplatin-sensitive ovarian cancer cell A2780 have also been demonstrated. Differing from the well-known mechanism involving Cu-B species in Cu-catalyzed boron conjugate additions, our mechanistic studies using density functional theory (DFT) calculations and experiments indicate that a Lewis acid CuI -catalyzed mechanism is the likely pathway in the catalytic reaction.
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Affiliation(s)
- Liang Tang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yicong Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Cheng Sheng
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Fang Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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4
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Zeng L, Liu S, Lan Y, Gao L. Catalytic asymmetric oxa-Diels-Alder reaction of acroleins with simple alkenes. Nat Commun 2023; 14:3511. [PMID: 37316484 DOI: 10.1038/s41467-023-39184-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/30/2023] [Indexed: 06/16/2023] Open
Abstract
The catalytic asymmetric inverse-electron-demand oxa-Diels-Alder (IODA) reaction is a highly effective synthetic method for creating enantioenriched six-membered oxygen-containing heterocycles. Despite significant effort in this area, simple α,β-unsaturated aldehydes/ketones and nonpolarized alkenes are seldom utilized as substrates due to their low reactivity and difficulties in achieving enantiocontrol. This report describes an intermolecular asymmetric IODA reaction between α-bromoacroleins and neutral alkenes that is catalyzed by oxazaborolidinium cation 1f. The resulting dihydropyrans are produced in high yields and excellent enantioselectivities over a broad range of substrates. The use of acrolein in the IODA reaction produces 3,4-dihydropyran with an unoccupied C6 position in the ring structure. This unique feature is utilized in the efficient synthesis of (+)-Centrolobine, demonstrating the practical synthetic utility of this reaction. Additionally, the study found that 2,6-trans-tetrahydropyran can undergo efficient epimerization into 2,6-cis-tetrahydropyran under Lewis acidic conditions. This structural core is widespread in natural products.
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Affiliation(s)
- Lei Zeng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Shihan Liu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China.
- ZhengZhou JiShu Institute of AI Science, Zhengzhou, 450000, P. R. China.
| | - Lizhu Gao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China.
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5
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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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6
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Yang X, Sun J, Huang X, Jin Z. Asymmetric Synthesis of Structurally Sophisticated Spirocyclic Pyrano[2,3- c]pyrazole Derivatives Bearing a Chiral Quaternary Carbon Center. Org Lett 2022; 24:5474-5479. [PMID: 35857420 DOI: 10.1021/acs.orglett.2c02211] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A carbene-catalyzed enantio- and diastereoselective [2 + 4] cycloaddition reaction is developed for quick and efficient access to structurally complex multicyclic pyrano[2,3-c]pyrazole molecules. The reaction tolerates a broad scope of substrates bearing various substitution patterns, with the multicyclic pyrano[2,3-c]pyrazole products afforded in generally good to excellent yields and optical purities. The chiral molecules obtained from this approach has found promising applications in the development of novel bacteriacides for plant protection.
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Affiliation(s)
- Xiaoqun Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jun Sun
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Xuan Huang
- International Joint Research Center for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhichao Jin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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7
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Copper Catalyzed Inverse Electron Demand [4+2] Cycloaddition for the Synthesis of Oxazines. Catalysts 2022. [DOI: 10.3390/catal12050526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A copper catalyzed tandem CuAAC/ring cleavage/[4+2] annulation reaction of terminal ynones, sulfonyl azides, and imines has been developed to synthesize the functionalized oxazines under mild conditions. Particularly, the intermediate N-sulfonyl acylketenimines undergo cycloaddition of an inverse electron demand Diels–Alder reaction with imines and a series of 1,3-oxazine derivatives were obtained successfully in good yields.
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8
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Biswas A, Kundu S, Maji MS, Pal D, Pal A. Organocatalyzed Oxa-Diels–Alder Reactions: Recent Progress. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1514-1049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe oxa-Diels–Alder reaction is a straightforward, atom-economical process for the construction of six-membered oxacycles, which are privileged structures due to their very common occurrence in several pharmaceuticals and natural products. As with many other asymmetric transformations, organocatalysis provides an elegant pathway to their synthesis via [4+2] annulation under mild reaction conditions. The oxa-Diels–Alder reaction utilizes either an α,β-unsaturated carbonyl as an oxa-diene with a suitable dienophile or a simple carbonyl as a dienophile with other dienes. A range of organocatalysts has been explored in the past decade to execute this strategy. The catalysts induce stereoselectivities via two basic reactivities: (1) The formation of chiral intermediates, or (2) selectively activating suitable reactants via a transition state. The present short review compiles organocatalyzed asymmetric oxa-Diels–Alder reactions published over the last ten years, along with detailed discussions on mechanistic approaches.1 Introduction2 Catalysis through Covalent Activation2.1 N-Heterocyclic Carbenes2.2 Amines2.3 Isothiourea Catalysis2.4 Phosphines3 Catalysis through Non-Covalent Activation3.1 Bifunctional Amines3.2 Brønsted Acids3.3 Guanidines4 Multicatalysis through Both Covalent and Non-Covalent Activation5 Conclusion
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Affiliation(s)
- Anup Biswas
- Department of Chemistry, Hooghly Women’s College
| | - Samrat Kundu
- Department of Chemistry, Indian Institute of Technology Kharagpur
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur
| | - Dhananjoy Pal
- Department of Chemistry, Indian Institute of Technology Kharagpur
| | - Amit Pal
- Department of Chemistry, Indian Institute of Technology Kharagpur
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9
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Zheng Y, Jiang W, Tan J, Yan J, Zhan R, Huang H. Organocatalytic β,γ-Selective Activation of Deconjugated Butenolides Access to Chiral Tricyclic Chroman-butyrolactones. J Org Chem 2021; 86:12821-12830. [PMID: 34465087 DOI: 10.1021/acs.joc.1c01449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A highly efficient method for the β,γ-selective activation of deconjugated butenolides has been developed through an organocatalytic asymmetric vinylogous cascade reaction. This protocol enables the construction of a broad range of substituted tricyclic chroman-butyrolactones by vinylogous Michael/oxa-Michael pathways in good yield (up to 89%) with good to high enantioselectivity (up to 97:3 er) and excellent diastereoselectivity. The ring-opening esterification of butyrolactones was also demonstrated.
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Affiliation(s)
- Yangqing Zheng
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Weichao Jiang
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Jingbo Tan
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Juzhang Yan
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Ruoting Zhan
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Huicai Huang
- Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, P.R. China
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10
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Laina‐Martín V, Fernández‐Salas JA, Alemán J. Organocatalytic Strategies for the Development of the Enantioselective Inverse-electron-demand Hetero-Diels-Alder Reaction. Chemistry 2021; 27:12509-12520. [PMID: 34132427 PMCID: PMC8456916 DOI: 10.1002/chem.202101696] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Indexed: 12/20/2022]
Abstract
Cycloaddition reactions, in particular Diels-Alder reactions, have attracted a lot of attention from organic chemists since they represent one of the most powerful methodologies for the construction of carbon-carbon bonds. In particular, inverse-electron-demand hetero-Diels-Alder reactions have been an important breakthrough for the synthesis of heterocyclic compounds. Among all their variants, the organocatalytic enantioselective version has been widely explored since the asymmetric construction of diversely functionalized scaffolds under reaction conditions encompassed within the green chemistry field is of great interest. In this review, a profound revision on the latest advances on the organocatalytic asymmetric inverse-electron demand hetero-Diels-Alder reaction is shown.
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Affiliation(s)
- Víctor Laina‐Martín
- Departamento de Química Orgánica (módulo 1) Facultad de CienciasUniversidad Autónoma de Madrid28049-MadridSpain
| | - Jose A. Fernández‐Salas
- Departamento de Química Orgánica (módulo 1) Facultad de CienciasUniversidad Autónoma de Madrid28049-MadridSpain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid28049-MadridSpain
| | - José Alemán
- Departamento de Química Orgánica (módulo 1) Facultad de CienciasUniversidad Autónoma de Madrid28049-MadridSpain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid28049-MadridSpain
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Mallik S, Bhajammanavar V, Baidya M. Regioselective Nitrosocarbonyl Aldol Reaction of Deconjugated Butyrolactams: Synthesis of γ‐Heterosubstituted α,β‐Unsaturated γ‐Lactams. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100187] [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)
- Sumitava Mallik
- Department of Chemistry Indian Institute of Technology Madras Chennai 6000036 Tamil Nadu India
| | - Vinod Bhajammanavar
- Department of Chemistry Indian Institute of Technology Madras Chennai 6000036 Tamil Nadu India
| | - Mahiuddin Baidya
- Department of Chemistry Indian Institute of Technology Madras Chennai 6000036 Tamil Nadu India
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12
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Bania N, Mondal B, Ghosh S, Pan SC. DMAP Catalyzed Domino Rauhut-Currier Cyclization Reaction between Alkylidene Pyrazolones and Nitro-olefins: Access to Tetrahydropyrano[2,3- c]pyrazoles. J Org Chem 2021; 86:4304-4312. [PMID: 33593067 DOI: 10.1021/acs.joc.0c02871] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, we employ unsaturated pyrazolones in the Rauhut-Currier reaction for the first time. A domino Rauhut-Currier cyclization reaction has been developed between unsaturated pyrazolones and nitro-olefins. The trisubstituted tetrahydropyrano[2,3-c]pyrazoles were obtained in moderate to high yields with excellent diastereoselectivities. A few applications including a synthesis of disubstituted tetrahydropyrano[2,3-c]pyrazole have been demonstrated. A preliminary catalytic asymmetric version of this process was also studied with chiral DMAP catalysts.
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Affiliation(s)
- Nimisha Bania
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Buddhadeb Mondal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Sounak Ghosh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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13
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Aydin AE, Culha S. Enantioselective conjugate addition of pyrazolones to nitroalkenes catalyzed by chiral squaramide organocatalyst. Chirality 2021; 33:106-114. [PMID: 33428800 DOI: 10.1002/chir.23295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 12/07/2020] [Accepted: 12/28/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Alime Ebru Aydin
- Department of Chemistry, Mustafa Kemal University, Antakya, Hatay, Turkey
| | - Selda Culha
- Department of Chemistry, Mustafa Kemal University, Antakya, Hatay, Turkey
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14
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Awasthi A, Yadav P, Tiwari DK. A three-component, general and practical route for diastereoselective synthesis of aza-spirocyclic pyrazolones via a decarboxylative annulation process. NEW J CHEM 2021. [DOI: 10.1039/d0nj05915c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient, general, and practical route for highly diastereoselective synthesis of aza-spirocyclic pyrazolones from easily available α-amino acids, aldehydes, and alkylidene pyrazolones by means of a decarboxylative annulation process is reported.
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Affiliation(s)
- Annapurna Awasthi
- Molecular Synthesis and Drug Discovery Unit
- Center of Biomedical Research (CBMR)
- SGPGIMS Campus
- Lucknow
- India
| | - Pushpendra Yadav
- Molecular Synthesis and Drug Discovery Unit
- Center of Biomedical Research (CBMR)
- SGPGIMS Campus
- Lucknow
- India
| | - Dharmendra Kumar Tiwari
- Molecular Synthesis and Drug Discovery Unit
- Center of Biomedical Research (CBMR)
- SGPGIMS Campus
- Lucknow
- India
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15
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Awasthi A, Yadav P, Kumar V, Tiwari DK. α‐Amino Acids Mediated C−C Double Bonds Cleavage in Diastereoselective Synthesis of Aza‐Spirocyclic Pyrazolones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000884] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Annapurna Awasthi
- Molecular Synthesis and Drug Discovery Laboratory Center of Biomedical Research (CBMR) Sanjay Gandhi Post Graduate Institute of Medical Sciences Campus Raebareli Road Lucknow 226014 India
- Department of Chemistry Institute of Science Banaras Hindu University 221005 Varanasi Uttar Pradesh India
| | - Pushpendra Yadav
- Molecular Synthesis and Drug Discovery Laboratory Center of Biomedical Research (CBMR) Sanjay Gandhi Post Graduate Institute of Medical Sciences Campus Raebareli Road Lucknow 226014 India
- Department of Chemistry Institute of Science Banaras Hindu University 221005 Varanasi Uttar Pradesh India
| | - Virendra Kumar
- School of Basic Sciences Indian Institute of Technology Bhubaneswar Argul Khurdha 752050 Odisha India
| | - Dharmendra Kumar Tiwari
- Molecular Synthesis and Drug Discovery Laboratory Center of Biomedical Research (CBMR) Sanjay Gandhi Post Graduate Institute of Medical Sciences Campus Raebareli Road Lucknow 226014 India
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16
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Skrzyńska A, Frankowski S, Albrecht Ł. Cyclic 1‐Azadienes in the Organocatalytic Inverse‐Electron‐Demand Aza‐Diels‐Alder Cycloadditions. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000332] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Anna Skrzyńska
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Sebastian Frankowski
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry Faculty of Chemistry Lodz University of Technology Żeromskiego 116 90-924 Łódź Poland
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17
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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18
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Yuan C, Zhang H, Yuan M, Xie L, Cao X. Synthesis of 1,4-diazepinone derivatives via a domino aza-Michael/S N2 cyclization of 1-azadienes with α-halogenoacetamides. Org Biomol Chem 2020; 18:1082-1086. [PMID: 31971222 DOI: 10.1039/c9ob02626f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel cyclization of α-halogenoacetamides with 1-azadienes has been developed for the efficient preparation of monocyclic 1,4-diazepinones in one step under transition metal-free conditions. Various α-halogenoacetamides and 1-azadienes are well tolerated and give the desired products in good to excellent yields. This cyclization also demonstrates potential synthetic utility on a gram-scale and further transformation.
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Affiliation(s)
- Chunhao Yuan
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China.
| | - Hui Zhang
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China.
| | - Mengna Yuan
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China.
| | - Lei Xie
- School of Pharmacy, Liaocheng University, Liaocheng 252000, Shandong, P. R. China
| | - Xiaoqun Cao
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China.
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19
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Luo W, Shao B, Li J, Song D, Yi X, Ling F, Zhong W. Divergent synthesis of spirocyclopentene-pyrazolones and pyrano[2,3-c]-pyrazoles via Lewis base controlled annulation reactions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151206] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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21
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Hatano M, Sakamoto T, Mochizuki T, Ishihara K. Tris(pentafluorophenyl)borane‐Assisted Chiral Phosphoric Acid Catalysts for Enantioselective Inverse‐Electron‐Demand Hetero‐Diels‐Alder Reaction of α,β‐Substituted Acroleins. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900104] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Manabu Hatano
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Tatsuhiro Sakamoto
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Takuya Mochizuki
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
| | - Kazuaki Ishihara
- Graduate School of EngineeringNagoya University Furo-cho, Chikusa Nagoya 464-8603 Japan
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22
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Mutyala R, Reddy VR, Donthi R, Kallaganti VR, Chandra R. Direct catalytic asymmetric method for the synthesis of tetrahydropyranopyrazoles through allene zwitterion chemistry. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Yavari I, Sheykhahmadi J, Saffarian H, Reza Halvagar M. Nef-isocyanide-Perkow access to novel pyrazolone derivations containing a cyclic ketene dithioacetal moiety. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2018.1560474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Issa Yavari
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
| | | | - Hamed Saffarian
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Reza Halvagar
- Department of Inorganic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, Tehran, Iran
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24
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Chen YH, Li DH, Liu YK. Diversified Synthesis of Chiral Chromane-Containing Polyheterocyclic Compounds via Asymmetric Organocatalytic Cascade Reactions. ACS OMEGA 2018; 3:16615-16625. [PMID: 31458293 PMCID: PMC6643940 DOI: 10.1021/acsomega.8b02891] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 11/27/2018] [Indexed: 06/10/2023]
Abstract
Two different organocatalytic cascade reaction pathways have been developed toward the diversified synthesis of chromane-containing polyheterocyclic compounds from the readily available starting materials. The application of Hantzsch ester is proposed to be the key to achieve the switch between these two different cascade reaction pathways, and then the electron-deficient 1-aza-1,3-butadienes could be used as the four-atom and two-carbon unit, respectively, to react with 2-hydroxy cinnamaldehydes in a highly regio- and stereocontrolled manner. On the basis of larger-scale synthesis, further transformations of the obtained products have also been realized, leading to cycloadducts with high structural and stereogenic complexity bearing five stereogenic centers, and one is a tetrasubstituted stereocenter.
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Affiliation(s)
- Ying-Han Chen
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy and Laboratory for Marine Drugs and Bioproducts
of Qingdao National Laboratory for Marine Science and Technology, Ocean University of China, Qingdao 266003, China
| | - De-Hai Li
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy and Laboratory for Marine Drugs and Bioproducts
of Qingdao National Laboratory for Marine Science and Technology, Ocean University of China, Qingdao 266003, China
| | - Yan-Kai Liu
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy and Laboratory for Marine Drugs and Bioproducts
of Qingdao National Laboratory for Marine Science and Technology, Ocean University of China, Qingdao 266003, China
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25
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Desimoni G, Faita G, Quadrelli P. Forty Years after “Heterodiene Syntheses with α,β-Unsaturated Carbonyl Compounds”: Enantioselective Syntheses of 3,4-Dihydropyran Derivatives. Chem Rev 2018; 118:2080-2248. [DOI: 10.1021/acs.chemrev.7b00322] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giovanni Desimoni
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Giuseppe Faita
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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26
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Kalaitzakis D, Sofiadis M, Triantafyllakis M, Daskalakis K, Vassilikogiannakis G. Asymmetric and Site-Selective [3 + 2]-Annulations for the Synthesis of High-Value Bicyclic Lactams. Org Lett 2018; 20:1146-1149. [PMID: 29417818 PMCID: PMC5822218 DOI: 10.1021/acs.orglett.8b00076] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
![]()
Asymmetric
and site-selective formal [3 + 2]-annulations of γ-alkyl-β,γ-unsaturated
γ-lactams with α,β-unsaturated aldehydes have been
developed. These organocatalysed transformations yield high value
enantioenriched bicyclic γ-lactams with up to four new stereocenters
(sometimes including a quarternary carbon). The overall transformation
starts from simple and readily accessible furans and oversees a rapid,
controlled, and dramatic enhancement in 3D complexity.
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Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Manolis Sofiadis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Myron Triantafyllakis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Konstantinos Daskalakis
- Department of Chemistry, University of Crete , Vasilika Vouton, 71003 Iraklion, Crete, Greece
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27
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Zhong Y, Hong S, Cai Z, Ma S, Jiang X. Direct β-selectivity of α,β-unsaturated γ-butyrolactam for asymmetric conjugate additions in an organocatalytic manner. RSC Adv 2018; 8:28874-28878. [PMID: 35548007 PMCID: PMC9084493 DOI: 10.1039/c8ra05264f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 07/05/2018] [Indexed: 01/06/2023] Open
Abstract
The β-selective asymmetric addition of γ-butyrolactam with cyclic imino esters catalyzed by a bifunctional chiral tertiary amine has been developed, which provides an efficient access to optically active β-position functionalized pyrrolidin-2-one derivatives in both high yield and enantioselectivity (up to 78% yield and 95 : 5 er). This is the first catalytic method to access chiral β-functionalized pyrrolidin-2-one via a direct organocatalytic approach. The asymmetric addition of γ-butyrolactam with cyclic imino esters catalyzed by (DHQD)2AQN has been developed, which provides an access to β-position functionalized pyrrolidin-2-one derivatives in high levels yield and enantioselectivity.![]()
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Affiliation(s)
- Yuan Zhong
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou
- China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
| | - Sihua Hong
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou
- China
| | - Zhengjun Cai
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou
- China
| | - Shixiong Ma
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
- China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou
- China
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28
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Bao X, Wei S, Qu J, Wang B. C6′ steric bulk of cinchona alkaloid enables an enantioselective Michael addition/annulation sequence toward pyranopyrazoles. Chem Commun (Camb) 2018; 54:2028-2031. [DOI: 10.1039/c8cc00154e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A C6′ silyloxyl quinine catalyzed asymmetric Michael addition/annulation cascade between pyrazolones and enynones was developed.
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Affiliation(s)
- Xiaoze Bao
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Shiqiang Wei
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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29
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Cheng BY, Wang YN, Li TR, Lu LQ, Xiao WJ. Synthesis of Polysubstituted Pyrroles through a Formal [4 + 1] Cycloaddition/E1cb Elimination/Aromatization Sequence of Sulfur Ylides and α,β-Unsaturated Imines. J Org Chem 2017; 82:12134-12140. [PMID: 29087199 DOI: 10.1021/acs.joc.7b01931] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A reaction sequence comprising a formal [4 + 1] cycloaddition, an E1cb elimination, and an aromatization process is described in this work. By doing so, polysubstituted pyrroles were achieved from easily available chemicals, sulfur ylides, and α,β-unsaturated imines. This protocol features mild conditions, high efficiency, and wide substrate scopes.
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Affiliation(s)
- Bei-Yi Cheng
- Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Ya-Ni Wang
- Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Tian-Ren Li
- Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Liang-Qiu Lu
- Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Wen-Jing Xiao
- Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , 152 Luoyu Road, Wuhan, Hubei 430079, China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072, China
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30
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Kumar K, Jaiswal MK, Singh RP. Asymmetric Vinylogous Aldol Reaction ofα-ketoesters with 3-alkylidene oxindoles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700758] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Krishna Kumar
- Department of Chemistry; Indian Institute of Technology, Delhi, Hauz Khas; New Delhi - 110 016 India
| | - Manish K. Jaiswal
- Department of Chemistry; Indian Institute of Technology, Delhi, Hauz Khas; New Delhi - 110 016 India
| | - Ravi P. Singh
- Department of Chemistry; Indian Institute of Technology, Delhi, Hauz Khas; New Delhi - 110 016 India
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31
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Feng J, Li X. Enantioselective Vinylogous Michael–Michael Cascade Reactions of 3-Alkylidene Oxindoles and Nitroolefin Enoates. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00938] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Junjun Feng
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071 China
| | - Xin Li
- State Key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071 China
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32
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Xu Y, Sun P, Song Q, Lai X, Liu W, Xia T, Huang Y, Shen Y. Enantioselective Synthesis of Chiral Pyrazolo[3,4-d
]azepin-7(2H
,4H
,8H
)-one Derivatives through a Sequential Michael Addition and Reductive Ring-Closing Strategy. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yan Xu
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Panpan Sun
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Qing Song
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Xiaoyan Lai
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Wei Liu
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Tao Xia
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Yiyong Huang
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
| | - Yongcun Shen
- School of Chemistry; Chemical Engineering & Life Sciences; Wuhan University of Technology; 205, Ruoshi Road Wuhan City Hongshan District China
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33
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Xie M, Lin L, Feng X. Catalytic Asymmetric Inverse-Electron-Demand Hetero-Diels-Alder Reactions. CHEM REC 2017; 17:1184-1202. [PMID: 28508470 DOI: 10.1002/tcr.201700006] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Indexed: 02/05/2023]
Abstract
In this review, the recent developments in catalytic asymmetric inverse-electron-demand hetero-Diels-Alder reaction, which is recognized as one of the most powerful routes to construct highly functionalized and enantioenriched six-membered heterocycles, are described. The article is organized on the basis of different kinds of electron-deficient heterodienes, including α,β-unsaturated ketones/aldehydes, o-benzoquinones, α,β-unsaturated imines, N-aryl imines, o-benzoqinone imides, and other aza-olefins.
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Affiliation(s)
- Mingsheng Xie
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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34
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Enantioselective access to tetrahydropyrano[2,3- c ]pyrazoles via an organocatalytic domino Michael-hydroalkoxylation reaction. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.04.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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35
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Wang S, Izquierdo J, Rodríguez-Escrich C, Pericàs MA. Asymmetric [4 + 2] Annulation Reactions Catalyzed by a Robust, Immobilized Isothiourea. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00360] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shoulei Wang
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Javier Izquierdo
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Carles Rodríguez-Escrich
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona, 08080 Barcelona, Spain
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36
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Zhou Z, Wang ZX, Ouyang Q, Xiao W, Du W, Chen YC. Cross-conjugated Trienamine Catalysis with α′-Alkylidene 2-Cyclohexenones: Application in β,γ-Regioselective Aza-Diels-Alder Reaction. Chemistry 2017; 23:2945-2949. [PMID: 28019058 DOI: 10.1002/chem.201605606] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Zhi Zhou
- Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Zhou-Xiang Wang
- Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Qin Ouyang
- College of Pharmacy; Third Military Medical University; Chongqing 400038 P. R. China
| | - Wei Xiao
- Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Wei Du
- Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
| | - Ying-Chun Chen
- Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; Chengdu 610041 P. R. China
- College of Pharmacy; Third Military Medical University; Chongqing 400038 P. R. China
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37
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Maity R, Pan SC. Dienamine-Mediated Asymmetric Inverse-Electron-Demand Hetero-Diels-Alder Reaction of Linear Deconjugated Enones: Diversity-Oriented Synthesis of 3,4-Dihydropyrans. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601575] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Rajendra Maity
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Assam India
| | - Subhas Chandra Pan
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Assam India
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38
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Arlt A, Toyama H, Takada K, Hashimoto T, Maruoka K. Phase-transfer catalyzed asymmetric synthesis of α,β-unsaturated γ,γ-disubstituted γ-lactams. Chem Commun (Camb) 2017; 53:4779-4782. [DOI: 10.1039/c7cc01058c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct, γ-selective vinylogous Michael addition of unsaturated γ-monosubstituted γ-lactams was realized by using chiral phase-transfer catalysis.
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Affiliation(s)
- Alexander Arlt
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Sakyo
- Japan
| | - Hideaki Toyama
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Sakyo
- Japan
| | - Koji Takada
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Sakyo
- Japan
| | - Takuya Hashimoto
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Sakyo
- Japan
| | - Keiji Maruoka
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Sakyo
- Japan
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39
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Singha Roy SJ, Mukherjee S. “On water” catalytic enantioselective sulfenylation of deconjugated butyrolactams. Org Biomol Chem 2017; 15:6921-6925. [DOI: 10.1039/c7ob01714f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first catalytic enantioselective α-sulfenylation of deconjugated butyrolactams has been developed using dimeric cinchona alkaloids as catalysts in water-enriched reaction medium. The applicability of the same catalyst system for enantioselective α-selenylation and formal vinylogous γ-hydroxylation of deconjugated butyrolactam has also been described.
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Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
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40
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Maity R, Pan SC. Enantioselective aminocatalytic synthesis of tetrahydropyrano[2,3-c]pyrazoles via a domino Michael-hemiacetalization reaction with alkylidene pyrazolones. Org Biomol Chem 2017; 15:8032-8036. [DOI: 10.1039/c7ob02170d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective organocatalytic synthesis of fused tetrahydropyranopyrazole products has been achieved via a domino Michael-hemiacetalization reaction between alkylidene pyrazolones and cyclic ketones/pentanal.
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Affiliation(s)
- Rajendra Maity
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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41
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Shi ML, Zhan G, Zhou SL, Du W, Chen YC. Asymmetric Inverse-Electron-Demand Oxa-Diels-Alder Reaction of Allylic Ketones through Dienamine Catalysis. Org Lett 2016; 18:6480-6483. [PMID: 27978681 DOI: 10.1021/acs.orglett.6b03384] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A remote β,γ-regioselective asymmetric inverse-electron-demand oxa-Diels-Alder reaction between allylic ketones and α-cyano-α,β-unsaturated ketones has been developed through induced extended dienamine catalysis of a cinchona-derived primary amine. A spectrum of densely substituted dihydropyran frameworks were efficiently produced with excellent enantioselectivity and fair to exclusive diastereoselectivity.
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Affiliation(s)
- Ming-Lin Shi
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Gu Zhan
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Su-Lan Zhou
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Wei Du
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China
| | - Ying-Chun Chen
- Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu 610041, China.,College of Pharmacy, Third Military Medical University , Shapingba, Chongqing 400038, China
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42
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Xue F, Bao X, Zou L, Qu J, Wang B. Asymmetric Hydroxylation of 4-Substituted Pyrazolones Catalyzed by Natural Cinchona
Alkaloids. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601070] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Fuzhao Xue
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 People's Republic of China
| | - Xiaoze Bao
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 People's Republic of China
| | - Liwei Zou
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 People's Republic of China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 People's Republic of China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology; Dalian University of Technology; Dalian 116024 People's Republic of China
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43
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Highly enantioselective Michael addition of α,α-disubstituted aldehydes to nitroolefins. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2468-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Xie J, Sha F, Wu XY. Asymmetric synthesis of pyrano[2,3-c]pyrazoles via a cascade reaction between Morita–Baylis–Hillman acetates of nitroalkenes and pyrazolones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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45
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Li JH, Wen H, Liu L, Du DM. Diastereo- and Enantioselective Synthesis of Spiro-Pyrrolidine-Pyrazolones by Squaramide-Catalyzed Cascade Aza-Michael/Michael Reactions. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600316] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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46
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Möhlmann L, Chang GH, Madhusudhan Reddy G, Lee CJ, Lin W. Organocatalytic Enantioselective Synthesis of Tetrahydrofluoren-9-ones via Vinylogous Michael Addition/Henry Reaction Cascade of 1,3-Indandione-Derived Pronucleophiles. Org Lett 2016; 18:688-91. [DOI: 10.1021/acs.orglett.5b03663] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lennart Möhlmann
- Department of Chemistry, National Taiwan Normal University, 88,
Sec. 4, Tingchow Road, Taipei 11677, Taiwan, R.O.C
| | - Geng-Hua Chang
- Department of Chemistry, National Taiwan Normal University, 88,
Sec. 4, Tingchow Road, Taipei 11677, Taiwan, R.O.C
| | - G. Madhusudhan Reddy
- Department of Chemistry, National Taiwan Normal University, 88,
Sec. 4, Tingchow Road, Taipei 11677, Taiwan, R.O.C
| | - Chia-Jui Lee
- 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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Wang S, Rodriguez-Escrich C, Pericàs MA. H-Bond-Directing Organocatalyst for Enantioselective [4 + 2] Cycloadditions via Dienamine Catalysis. Org Lett 2016; 18:556-9. [DOI: 10.1021/acs.orglett.5b03575] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shoulei Wang
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Carles Rodriguez-Escrich
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Orgànica, Universitat de Barcelona, 08080 Barcelona, Spain
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48
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Li JL, Yang KC, Li Y, Li Q, Zhu HP, Han B, Peng C, Zhi YG, Gou XJ. Asymmetric synthesis of bicyclic dihydropyrans via organocatalytic inverse-electron-demand oxo-Diels–Alder reactions of enolizable aliphatic aldehydes. Chem Commun (Camb) 2016; 52:10617-20. [DOI: 10.1039/c6cc05001h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An unprecedented highly enantioselective amine catalyzed oxo-IEDDA reaction of cyclic enones with enolizable aldehydes including aqueous acetaldehyde has been developed.
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Affiliation(s)
- Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Kai-Chuan Yang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Yi Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Qiang Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Hong-Ping Zhu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research
- Development and Utilization of Chinese Medicine Resources
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Yong-Gang Zhi
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiao-Jun Gou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
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49
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Li D, Wang Y, Wang L, Wang J, Wang P, Wang K, Lin L, Liu D, Jiang X, Yang D. Simple magnesium catalyst mediated γ-butyrolactams in desymmetrization of meso-aziridines. Chem Commun (Camb) 2016; 52:9640-3. [DOI: 10.1039/c6cc02877b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The first α-sp2-carbon of carbonyl compounds attacked catalytic desymmetrization reaction of aziridines is disclosed by employing a simple in situ generated magnesium catalyst.
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Affiliation(s)
- Dan Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
| | - Yijie Wang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Linqing Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
| | - Jie Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
| | - Pengxin Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
| | - Kezhou Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
| | - Li Lin
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
| | - Dongsheng Liu
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Dongxu Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- Lanzhou University
- Lanzhou
- China
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50
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Wang ZH, Wu ZJ, Yue DF, You Y, Xu XY, Zhang XM, Yuan WC. Enantioselective synthesis of chiral α,β-unsaturated γ-substituted butyrolactams by organocatalyzed direct asymmetric vinylogous Michael addition of α,β-unsaturated γ-butyrolactam to 2-enoylpyridines. Org Biomol Chem 2016; 14:6568-76. [DOI: 10.1039/c6ob01191h] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Approach providing a series of optically active α,β-unsaturated γ-substituted butyrolactams in high yields with excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Zhen-Hua Wang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Zhi-Jun Wu
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Deng-Feng Yue
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Yong You
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
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