201
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Koohgard M, Hosseini-Sarvari M. Black TiO2 nanoparticles with efficient photocatalytic activity under visible light at low temperature: regioselective C–N bond cleavage toward the synthesis of thioureas, sulfonamides, and propargylamines. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01256d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Several different colored forms of TiO2 were prepared through the easy treatment of white TiO2 and NaBH4 as a safe hydrogen source. Then, tertiary amines were harnessed toward the regioselective synthesis of three prominent scaffolds.
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Affiliation(s)
- Mehdi Koohgard
- Department of Chemistry
- Faculty of Science
- Shiraz University
- Shiraz
- 7194684795 I.R. Iran
| | - Mona Hosseini-Sarvari
- Department of Chemistry
- Faculty of Science
- Shiraz University
- Shiraz
- 7194684795 I.R. Iran
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202
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203
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Fernández G, Bernardo L, Villanueva A, Pleixats R. Gold nanoparticles stabilized by PEG-tagged imidazolium salts as recyclable catalysts for the synthesis of propargylamines and the cycloisomerization of γ-alkynoic acids. NEW J CHEM 2020. [DOI: 10.1039/d0nj00284d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water-soluble gold nanoparticles prepared in the presence of PEG-tagged tris-imidazolium bromide, containing Au(0) and Au(i) species, are reusable catalysts.
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Affiliation(s)
- Guillem Fernández
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Autònoma de Barcelona
- 08193-Cerdanyola del Vallès
- Spain
| | - Laura Bernardo
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Autònoma de Barcelona
- 08193-Cerdanyola del Vallès
- Spain
| | - Ana Villanueva
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Autònoma de Barcelona
- 08193-Cerdanyola del Vallès
- Spain
| | - Roser Pleixats
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universitat Autònoma de Barcelona
- 08193-Cerdanyola del Vallès
- Spain
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204
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Ten years of progress in the synthesis of six-membered N-heterocycles from alkynes and nitrogen sources. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130876] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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205
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Mruk J, Pazderski L, Ścianowski J, Wojtczak A. Structural and NMR spectroscopic studies of 2-phenylsulfanylpyridine and its analogues or derivatives, and their Au(III) chloride complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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206
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Matouš P, Kadaník M, Timoracký M, Kuneš J, Maříková J, Růžička A, Kočovský P, Pour M. Nucleophile-assisted cyclization of β-propargylamino acrylic compounds catalyzed by gold( i): a rapid construction of multisubstituted tetrahydropyridines and their fused derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo00653j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A variety of medicinally important multisubstituted tetrahydropyridines, 4-aryl piperidines, isoquinolines and fused pyridines were prepared in 1–3 step sequences via nucleophile-assisted Au(i)-catalyzed cyclizations of easily available azaenynes.
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Affiliation(s)
- Petr Matouš
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
| | - Michal Kadaník
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
| | - Marek Timoracký
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
| | - Jiří Kuneš
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
| | - Jana Maříková
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry
- University of Pardubice
- Faculty of Chemical Technology
- 532 10 Pardubice
- Czech Republic
| | - Pavel Kočovský
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry
- Charles University
- Faculty of Pharmacy in Hradec Králové
- Hradec Králové 500 05
- Czech Republic
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207
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Chaudhary B, Kulkarni N, Sharma S. Rhodium(iii)-catalyzed synthesis of 3-trifluoromethylindanones from N-methoxybenzamides via C–H activation and Claisen/retro-Claisen reaction. Org Chem Front 2020. [DOI: 10.1039/d0qo00330a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient synthesis of 3-trifluoromethylindanones via C–H annulation of N-methoxybenzamides with β-trifluoromethyl-α,β-unsaturated ketones under Rh(iii)-catalysis is described.
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Affiliation(s)
- Bharatkumar Chaudhary
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Ahmedabad (NIPER-A)
- Gandhinagar
- India
| | - Neeraj Kulkarni
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Ahmedabad (NIPER-A)
- Gandhinagar
- India
| | - Satyasheel Sharma
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Ahmedabad (NIPER-A)
- Gandhinagar
- India
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208
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Qi L, Li R, Yao X, Zhen Q, Ye P, Shao Y, Chen J. Syntheses of Pyrroles, Pyridines, and Ketonitriles via Catalytic Carbopalladation of Dinitriles. J Org Chem 2019; 85:1097-1108. [PMID: 31877047 DOI: 10.1021/acs.joc.9b02999] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The first example of the Pd-catalyzed addition of organoboron reagents to dinitriles, as an efficient means of preparing 2,5-diarylpyrroles and 2,6-diarylpyridines, has been discussed here. Furthermore, the highly selective carbopalladation of dinitriles with organoboron reagents to give long-chain ketonitriles has been developed as well. Based on the broad scope of substrates, excellent functional group tolerance, and use of commercially available substrates, the Pd-catalyzed addition reaction of arylboronic acid and dinitriles is expected to be significant in future synthetic procedures.
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Affiliation(s)
- Linjun Qi
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Renhao Li
- School of Pharmaceutical Sciences , Wenzhou Medical University , Wenzhou 325035 , P. R. China
| | - Xinrong Yao
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Qianqian Zhen
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Pengqing Ye
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
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209
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Udaykumar B, Periasamy M. Synthesis of Propargylamines via Michael Addition Using Methyl Vinyl Ketone Derivatives, 1-Alkynes, and Secondary Amines Catalyzed by Copper (I) Halides. ACS OMEGA 2019; 4:21587-21595. [PMID: 31867555 PMCID: PMC6921675 DOI: 10.1021/acsomega.9b03428] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
Propargylamines are synthesized from methyl vinyl ketone derivatives, 1-alkynes, and secondary amines catalyzed by Cu salts involving the Michael addition of amine followed by an unusual C-C bond cleavage and addition of metal acetylides formed in situ to iminium ions. In this approach, the di-, tri-, and tetrasubstituted propargylamines are synthesized in 46-98% yields.
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210
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Sebastian A, Srinivasulu V, Abu-Yousef IA, Gorka O, Al-Tel TH. Domino Transformations of Ene/Yne Tethered Salicylaldehyde Derivatives: Pluripotent Platforms for the Construction of High sp 3 Content and Privileged Architectures. Chemistry 2019; 25:15710-15735. [PMID: 31365773 DOI: 10.1002/chem.201902596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/30/2019] [Indexed: 12/23/2022]
Abstract
Diversity-oriented synthesis (DOS) has become a powerful synthetic tool that facilitates the construction of nature-inspired and privileged chemical space, particularly for sp3 -rich non-flat scaffolds, which are needed for phenotypic screening campaigns. These diverse compound collections led to the discovery of novel chemotypes that can modulate the protein function in underrepresented biological space. In this context, starting material-driven DOS is one of the most important tools used to build diverse compound libraries with rich stereochemical and scaffold diversity. To this end, ene/yne tethered salicylaldehyde derivatives have emerged as a pluripotent chemical platform, the products of which led to the construction of a privileged chemical space with significant biological activities. In this review, various domino transformations employing o-alkene/alkyne tethered aryl aldehyde/ketone platforms are described and discussed, with emphasis on the period from 2011 to date.
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Affiliation(s)
- Anusha Sebastian
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Vunnam Srinivasulu
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE
| | - Imad A Abu-Yousef
- College of Arts and Sciences, Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah, UAE
| | - Orive Gorka
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, Vitoria-Gasteiz, 01006, Spain.,Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Taleb H Al-Tel
- Sharjah Institute for Medical Research, University of Sharjah, P.O. Box 27272, Sharjah, UAE.,College of Pharmacy, University of Sharjah, P.O. Box 27272, Sharjah, UAE
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211
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Wan Z, Yuan X, Xiao T, Wang X, Luo J. A Pd‐Catalyzed Three‐Component Reaction and Hydrogenation Strategy to Prepare 2‐Functionalized Cyclic Ethers Involving a Radical Initiating C(sp
3
)‐H Activation. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zi‐juan Wan
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 China
| | - Xiao‐feng Yuan
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 China
| | - Tian Xiao
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 China
| | - Xiao‐rong Wang
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 China
| | - Jun Luo
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 China
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212
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Dai J, Wang Z, Deng Y, Zhu L, Peng F, Lan Y, Shao Z. Enantiodivergence by minimal modification of an acyclic chiral secondary aminocatalyst. Nat Commun 2019; 10:5182. [PMID: 31729388 PMCID: PMC6858435 DOI: 10.1038/s41467-019-13183-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/28/2019] [Indexed: 12/21/2022] Open
Abstract
The development of enantiodivergent catalysis for the preparation of both enantiomers of a chiral compound is of importance in pharmaceutical and bioorganic chemistry. With the design of a class of reactive and stereoselective organocatalysts, acyclic chiral secondary amines, a method for achieving the enantiodivergence is developed simply by changing the secondary N-i-Bu- to N-Me-group within the catalyst architecture while maintaining the same absolute configuration of the catalysts, which modulates the catalyst conformation. This catalyst-controlled enantiodivergent method not only enables challenging asymmetric transformations to occur in an enantiodivergent manner but also features a high level of stereocontrol and broad scope that is demonstrated in eight different reactions (90 examples), all delivering both enantiomers of a range of structurally diverse products including hitherto less accessible, yet important, compounds in good yields with high stereoselectivities. Enantiodivergent methods, which to access both enantiomers of the same compound, are of importance in drug synthesis. Here, the authors show that by simply changing a NiBu- to a NMe-group in readily available amine organocatalysts, high stereocontrol and broad scope are achieved in eight asymmetric reactions.
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Affiliation(s)
- Jun Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Zhuang Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Yuhua Deng
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, 400030, Chongqing, China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, 400030, Chongqing, China.
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, School of Chemical Science and Technology, and State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, 650091, Kunming, China.
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213
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Rafiee F, Rezaie Karder F. Bio-crosslinking of chitosan with oxidized starch, its functionalization with amino acid and magnetization: As a green magnetic support for silver immobilization and its catalytic activity investigation. Int J Biol Macromol 2019; 146:1124-1132. [PMID: 31726171 DOI: 10.1016/j.ijbiomac.2019.09.238] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/22/2019] [Accepted: 09/26/2019] [Indexed: 12/17/2022]
Abstract
In this study, we have reported the synthesis and characterization of new magnetic bionanocatalyst based on chitosan and investigated their catalytic activity in the A3-coupling reaction. In order to increase the stability of chitosan, starch oxide biopolymer was used as a green covalent linking agent between chitosan chains. After the cross-linking of chitosan with starch oxide, aldehyde functional groups were reacted with amine groups of cysteine to form the corresponding Schiff bases in the hybrid biopolymer. Then, the imine bonds were reduced to prevent possible their hydrolysis. The magnetic support was resulted with addition of iron oxide nanoparticles. In the presence of thiol and carboxylate coordinated groups of amino acid, silver ions were immobilized on this biosupport.
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Affiliation(s)
- F Rafiee
- Department of Chemistry, Faculty of Physic-Chemistry, Alzahra University, Tehran P.O. Box: 1993893973, Iran.
| | - F Rezaie Karder
- Department of Chemistry, Faculty of Physic-Chemistry, Alzahra University, Tehran P.O. Box: 1993893973, Iran
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214
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Mao ZY, Liu YW, Ma RJ, Ye JL, Si CM, Wei BG, Lin GQ. Divergent synthesis of N-heterocyclic 1,6-enynes through a zinc-catalyzed decarboxylative A 3 reaction. Chem Commun (Camb) 2019; 55:14170-14173. [PMID: 31701971 DOI: 10.1039/c9cc06985b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A zinc-catalyzed decarboxylative A3 reaction of cyclic amino acids, α,β-unsaturated aldehydes and terminal alkynes has been developed. A series of functionalized N-heterocyclic 1,6-enynes have been successfully obtained with excellent regioselectivities through this novel approach. In addition, the utility of this straightforward process is demonstrated by the preparation of a polycyclic nitrogen-containing heterocyclic compound.
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Affiliation(s)
- Zhuo-Ya Mao
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Yi-Wen Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Rui-Jun Ma
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Jian-Liang Ye
- College of Chemistry and Chemical Engineering and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
| | - Guo-Qiang Lin
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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215
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Orel VB, Vitkovskaya NM, Absalyamov DZ, Schmidt EY, Trofimov BA. Quantum chemical comparison of ethynylation and C-vinylation routes in superbase catalyzed reaction of acetylenes with imines. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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216
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Wu P, Givskov M, Nielsen TE. Reactivity and Synthetic Applications of Multicomponent Petasis Reactions. Chem Rev 2019; 119:11245-11290. [PMID: 31454230 PMCID: PMC6813545 DOI: 10.1021/acs.chemrev.9b00214] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Indexed: 02/06/2023]
Abstract
The Petasis boron-Mannich reaction, simply referred to as the Petasis reaction, is a powerful multicomponent coupling reaction of a boronic acid, an amine, and a carbonyl derivative. Highly functionalized amines with multiple stereogenic centers can be efficiently accessed via the Petasis reaction with high levels of both diastereoselectivity and enantioselectivity. By drawing attention to examples reported in the past 8 years, this Review demonstrates the breadth of the reactivity and synthetic applications of Petasis reactions in several frontiers: the expansion of the substrate scope in the classic three-component process; nonclassic Petasis reactions with additional components; Petasis-type reactions with noncanonical substrates, mechanism, and products; new asymmetric versions assisted by chiral catalysts; combinations with a secondary or tertiary transformation in a cascade- or sequence-specific manner to access structurally complex, natural-product-like heterocycles; and the synthesis of polyhydroxy alkaloids and biologically interesting molecules.
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Affiliation(s)
- Peng Wu
- Chemical
Genomics Center of the Max Planck Society, Dortmund 44227, Germany
- Department
of Chemical Biology, Max Planck Institute
of Molecular Physiology, Dortmund 44227, Germany
- Chemical
Biology and Therapeutics Science, Broad
Institute of MIT and Harvard, Cambridge, Massachusetts 02142, United States
- Department
of Medicine and Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
- Department
of Drug Design and Pharmacology, University
of Copenhagen, Copenhagen DK-2100, Denmark
| | - Michael Givskov
- Costerton
Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen DK-2200, Denmark
- Singapore
Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | - Thomas E. Nielsen
- Costerton
Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen DK-2200, Denmark
- Singapore
Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
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217
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Development of a Telescoped Flow Process for the Safe and Effective Generation of Propargylic Amines. MOLECULES (BASEL, SWITZERLAND) 2019; 24:molecules24203658. [PMID: 31658759 PMCID: PMC6833020 DOI: 10.3390/molecules24203658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/28/2022]
Abstract
Propargylic amines are important multifunctional building blocks that are frequently exploited in the synthesis of privileged heterocyclic entities. Herein we report on a novel flow process that achieves the safe and effective on-demand synthesis of propargylic amines in a telescoped manner. This process minimizes exposure to hazardous azide intermediates and renders a streamlined route into these building blocks. The value of this approach is demonstrated by the rapid generation of a small selection of drug-like thiazolines that result from a high-yielding reaction cascade between propargylic amines with different aryl isothiocyanates.
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218
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Feng FF, Li S, Cheung CW, Ma JA. Chiral β-Keto Propargylamine Synthesis via Enantioselective Mannich Reaction of Enamides with C-Alkynyl N-Boc N,O-Acetals. Org Lett 2019; 21:8419-8423. [DOI: 10.1021/acs.orglett.9b03181] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fang-Fang Feng
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P.R. China
- Joint School of NUS & TJU, International Campus of Tianjin University, Fuzhou 350207, P.R. China
| | - Shen Li
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P.R. China
- Joint School of NUS & TJU, International Campus of Tianjin University, Fuzhou 350207, P.R. China
| | - Chi Wai Cheung
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P.R. China
- Joint School of NUS & TJU, International Campus of Tianjin University, Fuzhou 350207, P.R. China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P.R. China
- Joint School of NUS & TJU, International Campus of Tianjin University, Fuzhou 350207, P.R. China
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219
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Li E, Lin Y, Wu X, Mao X, Kang H, Wen Y, Bai Y, Wang X, Lv X. Regioselective single-step synthesis of 2-aminoimidazole derivatives. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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220
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Innocenti R, Lenci E, Baldini L, Faggi C, Menchi G, Trabocchi A. Copper-Catalyzed A3
-Coupling for the Diversity-Oriented Synthesis of Proline-Derived Alkynyl-Substituted Peptidomimetic Scaffolds. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900703] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Riccardo Innocenti
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Elena Lenci
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Lorenzo Baldini
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Cristina Faggi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Florence Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM); University of Florence; Viale Morgagni 85 50134 Florence Italy
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221
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Rokade BV, Barker J, Guiry PJ. Development of and recent advances in asymmetric A3 coupling. Chem Soc Rev 2019; 48:4766-4790. [PMID: 31465045 DOI: 10.1039/c9cs00253g] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Asymmetric A3 coupling has emerged as an important class of reactions to synthesise chiral propargylamines. In this tutorial review, an up to date progress of this reaction, with significant recent advancements in terms of ligand development, is presented. Applications of asymmetric A3 coupling in natural product synthesis and in tandem processes are also discussed.
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Affiliation(s)
- Balaji V Rokade
- Centre for Synthesis and Chemical Biology (CSCB), School of Chemistry, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
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222
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Schmidt EY, Bidusenko IA, Protsuk NI, Demyanov YV, Ushakov IA, Trofimov BA. Superbase-Promoted Addition of Acetylene Gas to the C=N Bond. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900932] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Elena Yu. Schmidt
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Ivan A. Bidusenko
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Nadezhda I. Protsuk
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Yan V. Demyanov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Igor A. Ushakov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
| | - Boris A. Trofimov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; 1 Favorsky St 664033 Irkutsk Russian Federation
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223
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Kujur S, Pathak DD. Reduced graphene oxide-immobilized iron nanoparticles Fe(0)@rGO as heterogeneous catalyst for one-pot synthesis of series of propargylamines. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03955-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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224
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Neshat A, Afrasi M, Gilanchi S, Gholinejad M. An Efficient A
3
Coupling Catalyst Based on a Silver Complex Bearing N‐Heterocyclic Carbene and Homoscorpionate Bis(3‐methyl‐mercaptoimidazolyl)borate Ligands. ChemistrySelect 2019. [DOI: 10.1002/slct.201901946] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Abdollah Neshat
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137–66731 Iran
| | - Mahmoud Afrasi
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137–66731 Iran
| | - Shirin Gilanchi
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137–66731 Iran
| | - Mohammad Gholinejad
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137–66731 Iran
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225
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He X, Xie M, Tang Q, Zuo Y, Li R, Shang Y. Catalyst-Free Synthesis of 2,3-Dihydrobenzofurans via a Formal [4+1] Annulation of Propargylamines with Sulfur Ylides. J Org Chem 2019; 84:11623-11638. [DOI: 10.1021/acs.joc.9b01557] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Youpeng Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Ruxue Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, People’s Republic of China
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226
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Li H, Feng H, Zhang J, Van der Eycken EV, Huang L. Synthetic Access to Secondary Propargylamines via a Copper-Catalyzed Oxidative Deamination/Alkynylation Cascade. J Org Chem 2019; 84:10501-10508. [PMID: 31347364 DOI: 10.1021/acs.joc.9b01431] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel and selective cascade reaction of primary amines and alkynes for the synthesis of the corresponding secondary propargylamines is described. This protocol proceeds with a CuBr2/TBHP system through a process of oxidative deamination of primary amines to imine and alkynylation, featuring a wide scope of substrates with good functional-group tolerance and operational simplicity. Additionally, the use of two different primary amines could also work smoothly using this protocol.
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Affiliation(s)
- Huiqiong Li
- College of Chemistry and Chemical Engineering , Shanghai University of Engineering Science , 333 Longteng Road , Shanghai 201620 , China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering , Shanghai University of Engineering Science , 333 Longteng Road , Shanghai 201620 , China
| | - Jingxian Zhang
- College of Chemistry and Chemical Engineering , Shanghai University of Engineering Science , 333 Longteng Road , Shanghai 201620 , China
| | - Erik V Van der Eycken
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC), Department of Chemistry , KU Leuven , Celestijnenlaan 200F , Leuven 3001 , Belgium.,Peoples' Friendship University of Russia (RUDN University) , 6 Miklukho-Maklaya Street , Moscow 117198 , Russia
| | - Liliang Huang
- College of Chemistry and Chemical Engineering , Shanghai University of Engineering Science , 333 Longteng Road , Shanghai 201620 , China
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227
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Rodriguez Núñez YA, Norambuena M, Romero Bohorquez AR, Morales-Bayuelo A, Gutíerrez M. Efficient synthesis and antioxidant activity of novel N-propargyl tetrahydroquinoline derivatives through the cationic Povarov reaction. Heliyon 2019; 5:e02174. [PMID: 31417970 PMCID: PMC6690562 DOI: 10.1016/j.heliyon.2019.e02174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/17/2019] [Accepted: 07/25/2019] [Indexed: 12/31/2022] Open
Abstract
New N-propargyl tetrahydroquinolines 6a-g have been synthesized efficiently through the cationic Povarov reaction (a domino Mannich/Friedel-Crafts reaction), catalyzed by Indium (III) chloride (InCl3), from the corresponding N-propargylanilines preformed, formaldehyde and N-vinylformamide, with good to moderate yields. All tetrahydroquinoline derivatives obtained were evaluated in vitro as free radical scavengers. Results showed that compound 6c presents a potent antioxidant effect compared with ascorbic acid, used as a reference compound. ADME predictions also revealed favorable pharmacokinetic parameters for the synthesized compounds, which warrant their suitability as potentials antioxidant. Additionally, a theoretical study using Molecular Quantum Similarity and reactivity indices were developed to discriminate different reactive sites in the new molecules in which the oxidative process occurs.
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Affiliation(s)
- Yeray A. Rodriguez Núñez
- Laboratorio Síntesis Orgánica, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, 3460000, Chile
| | - Maximiliano Norambuena
- Laboratorio Síntesis Orgánica, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, 3460000, Chile
| | - Arnold R. Romero Bohorquez
- Grupo de Investigación de Compuestos Orgánicos de Interés Medicinal (CODEIM), Parque Tecnológico Guatiguará, Universidad Industrial de Santander, A.A. 678, Piedecuesta, Colombia
| | - Alejandro Morales-Bayuelo
- Centro de Investigación de Procesos del Tecnologico Comfenalco (CIPTEC), programa de Ingeniería Industrial, Fundacion Universitaria Tecnologico Comfenalco – Cartagena, Cr 44 D N 30A, 91, Cartagena-Bolívar, Colombia
| | - Margarita Gutíerrez
- Laboratorio Síntesis Orgánica, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, 3460000, Chile
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228
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Chen H, Huang YH, Ye JL, Huang PQ. Double Addition of Alkynyllithium Reagents to Amides/Lactams: A Direct and Flexible Synthesis of 3-Amino-1,4-diynes Bearing an Aza-Quaternary Carbon Center. J Org Chem 2019; 84:9270-9281. [PMID: 31287315 DOI: 10.1021/acs.joc.9b01416] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient and mild protocol for the direct and flexible synthesis of 3-amino-1,4-diynes bearing an aza-quaternary carbon from tertiary amides and lactams has been established. The one-pot method consists of in situ activation of amides with trifluoromethanesulfonic anhydride, followed by double addition of alkynyllithium reagents at a concentration of 0.5 mol·L-1 in dichloromethane. This constitutes an extension of the method of direct reductive bisalkylation of amides that allows both employing alkynyllithium reagents as the first-addition nucleophiles and incorporating an alkynyl group as the first-introduced group.
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Affiliation(s)
- Hang Chen
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P. R. China
| | - Ying-Hong Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P. R. China
| | - Jian-Liang Ye
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry, Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P. R. China
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229
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Tzouras N, Neofotistos SP, Vougioukalakis GC. Zn-Catalyzed Multicomponent KA 2 Coupling: One-Pot Assembly of Propargylamines Bearing Tetrasubstituted Carbon Centers. ACS OMEGA 2019; 4:10279-10292. [PMID: 31460120 PMCID: PMC6648923 DOI: 10.1021/acsomega.9b01387] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 05/23/2019] [Indexed: 05/20/2023]
Abstract
Tetrasubstituted propargylamines comprise a unique class of highly useful compounds, which can be accessed through the multicomponent coupling between ketones, amines, and alkynes (KA2 coupling), an underexplored transformation. Herein, the development of a novel, highly efficient, and user-friendly catalytic system for the KA2 coupling, based on the environmentally benign, inexpensive, and readily available zinc acetate, is described. This system is employed in the multicomponent assembly of unprecedented, tetrasubstituted propargylamines derived from structurally diverse, challenging, and even biorelevant substrates. Notable features of this protocol include the demonstration of the enhancing effect that neat conditions can have on catalytic activity, as well as the expedient functionalization of hindered, prochiral cyclohexanones, linear ketones, and interesting molecular scaffolds such as norcamphor and nornicotine.
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230
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Saha S, Biswas K, Ghosh P, Basu B. New 1,2-dithioether based 2D copper(I) coordination polymer: from synthesis to catalytic application in A3-coupling reaction. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1627339] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sankar Saha
- Department of Chemistry, North Bengal University, Darjeeling, India
| | - Kinkar Biswas
- Department of Chemistry, Raiganj University, Raiganj, India
| | - Pranab Ghosh
- Department of Chemistry, North Bengal University, Darjeeling, India
| | - Basudeb Basu
- Department of Chemistry, North Bengal University, Darjeeling, India
- Department of Chemistry, Raiganj University, Raiganj, India
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231
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Sun J, Wang K, Wang P, Zheng G, Li X. Rhodium(III)-Catalyzed Oxidative Allylic C–H Indolylation via Nucleophilic Cyclization. Org Lett 2019; 21:4662-4666. [DOI: 10.1021/acs.orglett.9b01553] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiaqiong Sun
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Kuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Peiyuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE & School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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232
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Rokade BV, Guiry PJ. Enantioselective Catalytic Asymmetric A3 Coupling with Phosphino-Imidazoline Ligands. J Org Chem 2019; 84:5763-5772. [PMID: 30942080 DOI: 10.1021/acs.joc.9b00728] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A practical application of the UCD-PHIM ligand in the copper-catalyzed asymmetric A3 coupling is reported for aromatic, alkenylic, and alkynylic aldehydes under mild reaction conditions, low catalytic loading, and at ambient temperature. A broad range of aldehydes, secondary amines with a cheaper ethyne equivalent, 2-methyl-3-butyn-2-ol, was explored and enantioselectivities of up to 99% ee were obtained. The importance of (i) axial chirality and central chirality, (ii) imidazoline moiety over oxazoline moiety, and (iii) phosphine unit is investigated for A3 coupling by synthesizing and testing a series of related ligands to UCD-PHIM.
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Affiliation(s)
- Balaji V Rokade
- Centre for Synthesis and Chemical Biology (CSCB), Synthesis and Solid State Pharmaceutical Centre, School of Chemistry , University College Dublin (UCD) , Belfield, Dublin 4 , Ireland
| | - Patrick J Guiry
- Centre for Synthesis and Chemical Biology (CSCB), Synthesis and Solid State Pharmaceutical Centre, School of Chemistry , University College Dublin (UCD) , Belfield, Dublin 4 , Ireland
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233
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Jesin I, Nandi GC. Recent Advances in the A3
Coupling Reactions and their Applications. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900001] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Irfana Jesin
- Department of Chemistry; National Institute of Technology; Tiruchirapalli Tamilnadu India
| | - Ganesh Chandra Nandi
- Department of Chemistry; National Institute of Technology; Tiruchirapalli Tamilnadu India
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234
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Chaudhary B, Auti P, Shinde SD, Yakkala PA, Giri D, Sharma S. Rh(III)-Catalyzed [3 + 2] Annulation via C–H Activation: Direct Access to Trifluoromethyl-Substituted Indenamines and Aminoindanes. Org Lett 2019; 21:2763-2767. [DOI: 10.1021/acs.orglett.9b00720] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bharatkumar Chaudhary
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research - Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Prashant Auti
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research - Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Suchita Dattatray Shinde
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research - Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Prasanna Anjaneyulu Yakkala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research - Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Deepesh Giri
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research - Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Satyasheel Sharma
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research - Ahmedabad, Gandhinagar, Gujarat 382355, India
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235
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Ionic liquid assisted silver-catalyzed one-pot A3-coupling reactions for the synthesis of propargylamines. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.142] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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236
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Zhang Y, Huang L, Li X, Wang L, Feng H. Chemo- and Diastereoselective Synthesis of N-Propargyl Oxazolidines through a Copper-Catalyzed Domino A3 Reaction. J Org Chem 2019; 84:5046-5055. [DOI: 10.1021/acs.joc.8b03244] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yazhen Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Xiaoyang Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Le Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
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237
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Liu X, Tan X, Zhou Y, Li Y, Zhang Z. Cu0NPs@CMC: an efficient recoverable nanocatalyst for decarboxylative A3 and A3 couplings under neat condition. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03795-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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238
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He X, Wang H, Cai X, Li Q, Tao J, Shang Y. FeCl 3-promoted tandem 1,4-conjugate addition/6-endo-dig cyclization/oxidation of propargylamines and benzoylacetonitriles/malononitriles: direct access to functionalized 2-aryl-4H-chromenes. Org Biomol Chem 2019; 16:7191-7202. [PMID: 30255179 DOI: 10.1039/c8ob01927d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An efficient and concise procedure has been developed for the synthesis of functionalized 2-aryl-4H-chromenes based on a tandem reaction of propargylamines and benzoylacetonitriles/malononitriles in the presence of FeCl3 as an environmentally friendly promoter. This reaction involves a highly efficient tandem sequence consisting of 1,4-conjugate addition, 6-endo-dig cyclization, and oxidation. This protocol tolerates a variety of functional groups, thereby providing a practical and efficient method for the fabrication of 2-aryl-4H-chromene skeletons.
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Affiliation(s)
- Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China.
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239
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Groso EJ, Schindler CS. Recent advances in the application of ring-closing metathesis for the synthesis of unsaturated nitrogen heterocycles. SYNTHESIS-STUTTGART 2019; 51:1100-1114. [PMID: 31983781 PMCID: PMC6983305 DOI: 10.1055/s-0037-1611651] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This short review summarizes recent advances relating to the application of ring-closing olefin-olefin and carbonyl-olefin metathesis reactions towards the synthesis of unsaturated five- and six-membered nitrogen heterocycles. These developments include catalyst modifications and reaction designs that will enable access to more complex nitrogen heterocycles.
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Affiliation(s)
- Emilia J. Groso
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Corinna S. Schindler
- Department of Chemistry, Willard Henry Dow Laboratory, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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240
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Greenwood PDG, Grenet E, Waser J. Palladium-Catalyzed Carbo-Oxygenation of Propargylic Amines using in Situ Tether Formation. Chemistry 2019; 25:3010-3013. [PMID: 30620089 DOI: 10.1002/chem.201900020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 11/07/2022]
Abstract
1,2-Amino alcohols and α-aminocarbonyls are frequently found in natural products, drugs, chiral auxiliaries, and catalysts. This work reports a new method for the palladium-catalyzed oxyalkynylation and oxyarylation of propargylic amines. The reaction is perfectly regioselective based on the in situ introduction of a hemiacetal tether derived from trifluoroacetaldehyde. cis-Selective carbo-oxygenation was achieved for terminal alkynes, whereas internal alkynes gave trans-carbo-oxygenation products. The obtained enol ethers could be easily transformed into 1,2-amino alcohols or α-amino ketones using hydrogenation or hydrolysis, respectively.
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Affiliation(s)
- Phillip D G Greenwood
- Laboratory of Catalysis and Organic Synthesis, EPFL SB ISIC LCSO, BCH 4306, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Erwann Grenet
- Laboratory of Catalysis and Organic Synthesis, EPFL SB ISIC LCSO, BCH 4306, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, EPFL SB ISIC LCSO, BCH 4306, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
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241
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Singh RP, Gout D, Lovely CJ. Tandem Thioacylation-Intramolecular Hydrosulfenylation of Propargyl Amines - Rapid Access to 2-Aminothiazolidines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801505] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ravi P. Singh
- Department of Chemistry and Biochemistry; University of Texas Arlington; 700 Planetarium Place Arlington TX 76019-0065 USA
| | - Delphine Gout
- Center for Nanostructured Materials; University of Texas Arlington; 700 Planetarium Place Arlington TX 76019-0065 USA
| | - Carl J. Lovely
- Department of Chemistry and Biochemistry; University of Texas Arlington; 700 Planetarium Place Arlington TX 76019-0065 USA
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242
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Meng X, Yang B, Zhang L, Pan G, Zhang X, Shao Z. Rh(II)/Brønsted Acid Catalyzed General and Highly Diastereo- and Enantioselective Propargylation of in Situ Generated Oxonium Ylides and C-Alkynyl N-Boc N,O-Acetals: Synthesis of Polyfunctional Propargylamines. Org Lett 2019; 21:1292-1296. [DOI: 10.1021/acs.orglett.8b04051] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xueling Meng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Binmiao Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Linxing Zhang
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Guangyao Pan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
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243
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Gholinejad M, Afrasi M, Najera C. Caffeine gold complex supported on magnetic nanoparticles as a green and high turnover frequency catalyst for room temperature A3
coupling reaction in water. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4760] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mohammad Gholinejad
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Gavazang Zanjan 45137-66731 Iran
- Research Center for Basic Sciences & Modern Technologies (RBST); Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Mahmoud Afrasi
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Gavazang Zanjan 45137-66731 Iran
| | - Carmen Najera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 E-03080 Alicante Spain
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244
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Sarkar M, Pandey P, Bera JK. Chiral 1,8-naphthyridine based ligands: Syntheses and characterization of Di- and tetranuclear copper (I) and silver (I) complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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245
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Cui JF, Yang B, Yu Q, Lai NCH, Chen H, Wong MK. Silver-Mediated Organic Transformations of Propargylamines to Enones, α-Thioketones, and Isochromans. ChemistrySelect 2019. [DOI: 10.1002/slct.201900024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University, Hung Hum; Hong Kong
- Department of Chemistry; Southern University of Science and Technology; Shenzhen People's Republic of China
| | - Bin Yang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University, Hung Hum; Hong Kong
| | - Qiong Yu
- The Hong Kong Polytechnic University; Shenzhen Research Institute, Shenzhen; People's Republic of China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University, Hung Hum; Hong Kong
| | - Han Chen
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University, Hung Hum; Hong Kong
| | - Man-Kin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University, Hung Hum; Hong Kong
- The Hong Kong Polytechnic University; Shenzhen Research Institute, Shenzhen; People's Republic of China
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246
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Li YZ, Leong WK. A comparative study on atomically precise Au nanoclusters as catalysts for the aldehyde–alkyne–amine (A3) coupling reaction: ligand effects on the nature of the catalysis and efficiency. RSC Adv 2019; 9:5475-5479. [PMID: 35515902 PMCID: PMC9060790 DOI: 10.1039/c9ra00933g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 02/06/2019] [Indexed: 12/23/2022] Open
Abstract
Atomically precise Au13 nanoclusters stabilized by stibines catalyze the aldehyde–alkyne–amine coupling reaction more efficiently than those stabilized by thiols or phosphines. The nature of the catalytic activity is also different, and may be attributed to the weaker coordinating ability of the stibine ligands. A stibine-stabilised gold nanocluster which acts as a homogeneous catalyst in the A3 coupling reaction.![]()
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Affiliation(s)
- Ying-Zhou Li
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- Singapore
- Shandong Provincial Key Laboratory of Molecular Engineering
- Qilu University of Technology (Shandong Academy of Science)
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- Singapore
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247
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Uredi D, Motati DR, Watkins EB. A simple, tandem approach to the construction of pyridine derivatives under metal-free conditions: a one-step synthesis of the monoterpene natural product, (−)-actinidine. Chem Commun (Camb) 2019; 55:3270-3273. [DOI: 10.1039/c9cc01097a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
(−)-Actinidine, along with various diversely substituted pyridines were synthesized from simple starting materials, including natural products, using a mild and metal-free method.
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Affiliation(s)
- Dilipkumar Uredi
- Department of Pharmaceutical Sciences, College of Pharmacy, Union University
- Jackson
- USA
| | - Damoder Reddy Motati
- Department of Pharmaceutical Sciences, College of Pharmacy, Union University
- Jackson
- USA
| | - E. Blake Watkins
- Department of Pharmaceutical Sciences, College of Pharmacy, Union University
- Jackson
- USA
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248
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Yang R, Deng S, Dong XY, Song X, Cai H, Bai J, Xiao Q. Metal-free synthesis of 1, N6-ethenoadenines from N6-propargyl-adenines via NIS mediated radical cascade reaction. RSC Adv 2019; 9:38897-38901. [PMID: 35540232 PMCID: PMC9075968 DOI: 10.1039/c9ra09198j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/18/2019] [Indexed: 11/21/2022] Open
Abstract
In the present paper, an efficient approach for the construction of 1,N6-ethenoadenines from conveniently prepared N6-propargyl-adenines is developed. This reaction merges N-iodosuccinimide radical initiation and aerobic aminooxygenation in dioxane. This mild, 5-exo-dig, and metal-free cascade reaction could be applied to a wide substrate scope to provide 1,N6-ethenoadenines in moderate to good yields. The reaction mechanism was proposed and tested using radical inhibitor (butylated hydroxytoluene) and isotopic labelling (18O2) experiments. An efficient approach for the construction of 1,N6-ethenoadenines is developed through the metal-free mediated radical cascade cyclization of conveniently prepared N6-propargyl-adenines.![]()
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Affiliation(s)
- Ruchun Yang
- Institute of Chemistry
- Nanchang University
- Nanchang 330031
- China
- Institute of Organic Chemistry
| | - Si Deng
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Xiang-you Dong
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Xianrong Song
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Hu Cai
- Institute of Chemistry
- Nanchang University
- Nanchang 330031
- China
| | - Jiang Bai
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
| | - Qiang Xiao
- Institute of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Key Laboratory of Organic Chemistry
- Nanchang 330013
- China
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249
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Yan LQ, Cai X, He X, Wang H, Xie M, Zuo Y, Shang Y. Synthesis of 4-styrylcoumarins via FeCl3-promoted cascade reactions of propargylamines with β-keto esters. Org Biomol Chem 2019; 17:4005-4013. [DOI: 10.1039/c9ob00323a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A versatile and highly regioselective FeCl3-promoted tandem cyclization reaction of in situ generated alkynyl o-quinone methides (o-AQMs) with β-keto esters has been developed.
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Affiliation(s)
- Li-Qin Yan
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Xiaoting Cai
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Hui Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Youpeng Zuo
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
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250
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Xu R, Cai C. Three-component difluoroalkylamination of alkenes mediated by photoredox and iron cooperative catalysis. Org Biomol Chem 2019; 17:8541-8545. [DOI: 10.1039/c9ob01815h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A new three-component difluoroalkylamination of alkenes mediated by photoredox and iron cooperative catalysis has been developed with a broad substrate scope.
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Affiliation(s)
- Rui Xu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
- Key Laboratory of Organofluorine Chemistry
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