1
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Ge FB, Lu CJ, Chen X, Yao W, An M, Jiang YK, Xu LP, Liu RR. Enantioselective Nickel-Catalyzed Denitrogenative Transannulation En Route to N-N Atropisomers. Angew Chem Int Ed Engl 2024; 63:e202400441. [PMID: 38587149 DOI: 10.1002/anie.202400441] [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: 01/31/2024] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/09/2024]
Abstract
Nickel-catalyzed transannulation reactions triggered by the extrusion of small gaseous molecules have emerged as a powerful strategy for the efficient construction of heterocyclic compounds. However, their use in asymmetric synthesis remains challenging because of the difficulty in controlling stereo- and regioselectivity. Herein, we report the first nickel-catalyzed asymmetric synthesis of N-N atropisomers by the denitrogenative transannulation of benzotriazones with alkynes. A broad range of N-N atropisomers was obtained with excellent regio- and enantioselectivity under mild conditions. Moreover, density functional theory (DFT) calculations provided insights into the nickel-catalyzed reaction mechanism and enantioselectivity control.
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Affiliation(s)
- Fang-Bei Ge
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Chuan-Jun Lu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Xiao Chen
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Wang Yao
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Mei An
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Yu-Kun Jiang
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Ren-Rong Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Ningxia Road 308#, Qingdao, 266071, China
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2
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Li M, Wan QY, Lin RL, Peng YQ, Shu WM, Yu WC, Wu AX. Azide-free cyclization reaction access to 4-aryl- NH-1,2,3-triazoles: P-toluenesulfonyl hydrazide and sulfamic acid as nitrogen sources. Org Biomol Chem 2024; 22:482-485. [PMID: 38108209 DOI: 10.1039/d3ob01661g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
An iodine-mediated cyclization has been developed to 4-aryl-NH-1,2,3-triazoles, with p-toluenesulfonyl hydrazide and sulfamic acid used as nitrogen sources. Sulfamic acid plays a crucial role in this reaction by both acting as a substrate and providing an acidic environment. This reaction offers a metal- and azide-free strategy to access NH-1,2,3-triazoles.
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Affiliation(s)
- Min Li
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
| | - Qing-Yu Wan
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
| | - Ri-Lan Lin
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
| | - Yan-Qing Peng
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
| | - Wen-Ming Shu
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
| | - Wei-Chu Yu
- Hubei Engineering Research Centers for Clean Production and Pollution Control of Oil and Gas Fields, College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China.
| | - An-Xin Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, P.R. China
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3
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Permingeat Squizatto C, Bianchini MA, Delpiccolo CML. Synthesis of 2,3-Dihydropyrroles by Rhodium(II)-Catalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles: Diversity Generation by One-Pot Methodologies. J Org Chem 2023; 88:16091-16103. [PMID: 37910436 DOI: 10.1021/acs.joc.3c01337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
A versatile one-pot strategy for the generation of compounds of synthetic interest has been presented, promoting the development of practical processes. First, the transannulation of N-sulfonyltriazoles through alkenes and rhodium catalysis was described, giving 2,3-dihydropyrroles in 13-76% yield. As contributions of the strategy, the evaluation of alkenes with different properties, and the use of only drops of solvent (0.40 M) was highlighted. In addition, we described a methodology for the modulation of the N-sulfonyltriazoles, to obtain selectively cyclopropyl tosylimines or 2,3-dihydropyrroles. For the latter products, neat conditions were also included. Finally, the potential of the methodology was demonstrated by the synthesis of six structurally different analogues starting from the same substrates and late-stage transformation of bioactive molecules. These compounds were generated in 38-63% yield, after two or more conversion steps carried out in the same reaction vessel.
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Affiliation(s)
- Caterina Permingeat Squizatto
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| | - Maira A Bianchini
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| | - Carina M L Delpiccolo
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
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4
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Motornov V, Beier P. NH-1,2,3-triazoles as versatile building blocks in denitrogenative transformations. RSC Adv 2023; 13:34646-34651. [PMID: 38024996 PMCID: PMC10680141 DOI: 10.1039/d3ra06045d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023] Open
Abstract
The utilization of NH-1,2,3-triazoles as easily accessible building blocks in denitrogenative ring cleavage transformations with electrophiles to provide multifunctionalized nitrogen heterocycles and N-alkenyl compounds is reviewed. Leveraging the ready availability of NH-1,2,3-triazoles, these processes provide a convenient route to a range of pharmaceutically relevant heterocyclic cores and N-alkenyl compounds. The synthetic usefulness of in situ acylated NH-1,2,3-triazoles as viable alternatives to widely explored N-sulfonyl-1,2,3-triazoles in ring cleavage processes is highlighted.
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Affiliation(s)
- Vladimir Motornov
- Institute of Orgranic Chemistry and Biochemistry, Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
| | - Petr Beier
- Institute of Orgranic Chemistry and Biochemistry, Academy of Sciences Flemingovo nám. 2 160 00 Prague 6 Czech Republic
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5
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Williams M, Boyer A. Modular Synthesis of Highly Substituted 3-Azapyrroles by Rh(II)-Catalyzed N-H Bond Insertion and Cyclodehydration. J Org Chem 2022; 87:16139-16156. [PMID: 35503987 PMCID: PMC9764362 DOI: 10.1021/acs.joc.2c00434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A modular synthesis of highly substituted 3-azapyrroles has been developed using a three-step sequence comprising copper-catalyzed alkyne-azide cycloaddition (CuAAC), N-H bond insertion, and cyclodehydration. 1-Sulfonyl-1,2,3-triazoles (1-STs) can be accessed from common alkyne and sulfonyl azide building blocks by CuAAC using CuTC. Rhodium(II)-acetate-promoted 1-ST denitrogenation results in highly electrophilic rhodium azavinyl carbenes that, here, underwent insertion into the N-H bond of secondary α-aminoketones to form 1,2-aminoalkenes. These products were cyclized and dehydrated using BF3·OEt2 into highly substituted 3-azapyrroles. The three steps (CuAAC, N-H bond insertion, and cyclodehydration) could be telescoped into a one-pot process. The method proved to be highly efficient and tolerated a wide range of substituents.
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6
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Kubiak RW, Tracy WF, Alford JS, Davies HML. Asymmetric Cyclopropanation with 4-Aryloxy-1-sulfonyl-1,2,3-triazoles: Expanding the Range of Rhodium-Stabilized Donor/Acceptor Carbenes to Systems with an Oxygen Donor Group. J Org Chem 2022; 87:13517-13528. [PMID: 36264239 PMCID: PMC10290286 DOI: 10.1021/acs.joc.2c00978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Rhodium-catalyzed enantioselective synthesis of 1-phenoxycyclopropane-1-carbaldehydes by intermolecular cyclopropanation of terminal alkenes followed by imine hydrolysis is described. This methodology utilizes 4-aryloxy-1-sulfonyl-1,2,3-triazoles as the carbene precursors and the chiral dirhodium(II) tetracarboxylates Rh2(S-NTTL)4 or Rh2(S-DPCP)4 as the catalysts. These reactions are considered to proceed via rhodium-stabilized donor/acceptor carbene intermediates, and these studies demonstrate that a heteroatom donor group is compatible with an enantioselective transformation.
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Affiliation(s)
- Robert W Kubiak
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| | - William F Tracy
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| | - Joshua S Alford
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
| | - Huw M L Davies
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, Georgia 30329, United States
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7
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Akter M, Rupa K, Anbarasan P. 1,2,3-Triazole and Its Analogues: New Surrogates for Diazo Compounds. Chem Rev 2022; 122:13108-13205. [DOI: 10.1021/acs.chemrev.1c00991] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Monalisa Akter
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Kavuri Rupa
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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8
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Feng Z, Jiao H, Ye Z, Ye J, Xu ZF, Duan S, Li CY. Synthesis of Azepane Derivatives via Formal 1,3-Migration of Hydroxy and Acyloxy Groups and Selective Annulation. Org Lett 2022; 24:5254-5259. [PMID: 35852457 DOI: 10.1021/acs.orglett.2c01646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Formal 1,3-migration of hydroxy and acyloxy groups initiated by α-imino rhodium carbene was achieved, and the following selective annulations of the corresponding zwitterions could efficiently afford azepane derivatives. Benefiting from a time-saving procedure as well as a good functional group tolerance, this unique migration-annulation protocol could provide an efficient tool for synthesizing seven-membered N-heterocycles. The plausible mechanism is discussed.
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Affiliation(s)
- Zijuan Feng
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Hongjian Jiao
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Zihang Ye
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Jie Ye
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Ze-Feng Xu
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Shengguo Duan
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, Zhejiang 310018, China
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9
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Synthesis of α-Amino Cyclobutanones via Formal 1,3-Hydroxy Migration Triggered by Formation of α-Imino Rhodium Carbene. Org Lett 2022; 24:2950-2954. [PMID: 35416678 DOI: 10.1021/acs.orglett.2c01029] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Formal intramolecular 1,3-OH migration of α-imino carbene was achieved producing a unique zwitterion, and the subsequent selective annulation afforded α-amino cyclobutanone. Features such as readily available substrates, mild reaction conditions, a time-saving procedure, excellent functional group compatibility, and valuable transformations of the products qualified this unique protocol as an efficient tool for the synthesis of strained cyclic compounds. Density functional theory calculations were in good agreement with experimental observations, and a plausible mechanism is presented.
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10
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Liu Y, Chen Y, Yihuo A, Zhou Y, Liu X, Lin L, Feng X. Diastereodivergent Synthesis of Chiral α-Aminoketones via a Catalytic O–H Insertion/Barnes–Claisen Rearrangement Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05789] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yun Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yushuang Chen
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Aying Yihuo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, People’s Republic of China
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11
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Williams MB, Wells RJ, Boyer A. Synthesis and reactivity of 1-sulfonylcyclooctatriazoles. Chem Commun (Camb) 2022; 58:12495-12498. [DOI: 10.1039/d2cc03648g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sulfonyl azides undergo rapid inverse electron demand SPAAC with strained alkynes to deliver 1-sulfonyl-1,2,3-triazoles. Treatment of these with Rh(ii) carboxylate catalyst promotes denitrogenation and transannular 1,5-H insertion or 1,2-H shift.
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Affiliation(s)
| | | | - Alistair Boyer
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
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12
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Xu H, Kong X, Cen M, Xu ZF, Duan S, Li CY. Synthesis of dihydropyrroles from in situ-generated zwitterions via Rh 2(adc) 4/TBAI dual catalysis. Chem Commun (Camb) 2022; 58:12244-12247. [DOI: 10.1039/d2cc04674a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient rhodium/iodide dual catalysis strategy for the regioselective synthesis of dihydropyrroles was established.
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Affiliation(s)
- Huaping Xu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Xiaoyu Kong
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Mengjie Cen
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Ze-Feng Xu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Shengguo Duan
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
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13
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Ji J, Guan C, Wei Q, Chen X, Zhao Y, Liu S. Base-Induced Highly Regioselective Synthesis of N2-Substituted 1,2,3-Triazoles under Mild Conditions in Air. Org Lett 2021; 24:132-136. [PMID: 34928620 DOI: 10.1021/acs.orglett.1c03743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We developed a highly regioselective base-induced synthesis of N2-substituted 1,2,3-triazoles from N-sulfonyl-1,2,3-triazoles and alkyl bromides/alkyl iodides at room temperature. We propose an SN2-like mechanistic pathway to explain the high N2-regioselectivity. The protocol features a broad substrate scope and generates products in good to excellent yields (72-90%).
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Affiliation(s)
- Jian Ji
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Cong Guan
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Qinghua Wei
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Xuwen Chen
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yun Zhao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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14
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Wang T, Tang Z, Luo H, Tian Y, Xu M, Lu Q, Li B. Access to ( Z)-β-Substituted Enamides from N1-H-1,2,3-Triazoles. Org Lett 2021; 23:6293-6298. [PMID: 34346679 DOI: 10.1021/acs.orglett.1c02087] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A direct ring-opening/nucleophilic substitution reaction of N1-H-1,2,3-triazoles has been described. Divergent (Z)-β-halogen- or sulfonyl-substituted enamides could be stereospecifically synthesized in a tunable manner. This strategy might not only enable a new ring-opening method of N1-H-1,2,3-triazoles under nonmetal catalysis and mild reaction conditions but also offer a good opportunity to reliably access versatile (Z)-β-substituted enamides that could be used as synthetic precursors for further synthetic transformations.
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Affiliation(s)
- Tao Wang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
| | - Zongyuan Tang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
| | - Han Luo
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
| | - Yi Tian
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
| | - Mingchuan Xu
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
| | - Qixing Lu
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, People's Republic of China
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15
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Li YL, Zhang PC, Wu HH, Zhang J. Palladium-Catalyzed Asymmetric Tandem Denitrogenative Heck/Tsuji-Trost of Benzotriazoles with 1,3-Dienes. J Am Chem Soc 2021; 143:13010-13015. [PMID: 34402615 DOI: 10.1021/jacs.1c07212] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The asymmetric denitrogenative cycloaddition has emerged as a powerful tool to build chiral aza-heterocyles. However, only one example of asymmetric denitrogenative cycloaddition of benzotriazole with unsaturated hydrocarbons has been explored so far, because the ring-opening of benzotriazole to generate α-imino metal carbenoid species is a thermodynamically unfavorable process. We herein report an efficient asymmetric denitrogenative cycloaddition of benzotriazoles with cyclic and acyclic 1,3-dienes enabled by Pd and chiral sulfonamide phosphine ligand. A variety of substituted hexahydrocarbazoles and indolines were delivered in good yields with high ee values. Interestingly, a pair of enantiomers could be obtained with the use of Xu1 and PC2 with the same absolute configuration. The synthetic utilities of the optically active hexahydrocarbazoles were also showcased.
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Affiliation(s)
- Yin-Lin Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Pei-Chao Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, P. R. China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China.,Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, P. R. China
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16
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Jablasone ST, Ye Z, Duan S, Xu ZF, Li CY. Synthesis of benzothiazonine by rhodium-catalyzed denitrogenative transannulation of 1-sulfonyl-1,2,3-triazole and thiochromone. Org Biomol Chem 2021; 19:5758-5761. [PMID: 34124725 DOI: 10.1039/d1ob00419k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile synthesis of multi-functionalized benzothiazonine was achieved by the rhodium-catalyzed denitrogenative annulation of 1-sulfonyl-1,2,3-triazole and thiochromone. In view of the excellent atom economy, broad substrate scope and easy availability of starting materials, the protocol provided an efficient strategy for the construction of medium N,S-heterocycles.
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Affiliation(s)
- Saygbechi T Jablasone
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Zihang Ye
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Shengguo Duan
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Ze-Feng Xu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
| | - Chuan-Ying Li
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
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17
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Chen T, Yan Z, Duan S, Xu ZF, Li CY. Grob-type fragmentation of an oxonium ylide generated from α-imino rhodium carbene. Org Chem Front 2021. [DOI: 10.1039/d1qo01226f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Grob-type fragmentation of an oxonium ylide generated from α-imino rhodium carbene and tethered tetrahydrofuran was realized, leading to functionalized acroleins.
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Affiliation(s)
- Tao Chen
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Zhenxing Yan
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Shengguo Duan
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Ze-Feng Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China
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18
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Xu H, Zhang Z, Weng MY, Chen H. Liquid-Assisted Mechanosynthesis of trans-2,3-Dihydropyrroles from Chalcones and Enaminones. HETEROCYCLES 2021. [DOI: 10.3987/com-20-14365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Li W, Zhang J. Synthesis of Heterocycles through Denitrogenative Cyclization of Triazoles and Benzotriazoles. Chemistry 2020; 26:11931-11945. [DOI: 10.1002/chem.202000674] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/07/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Wenbo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Road Shanghai 20062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University 3663 N. Zhongshan Road Shanghai 20062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 20048 P. R. China
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20
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Xu Z, Wang W, Cen M, Feng Z, Duan S, Li C. Synthesis of α‐(2‐Hydroxyphenyl)‐α‐Aminoketones by Rhodium‐Catalyzed Tandem Reaction of 1‐Sulfonyl‐1,2,3‐Triazoles and Benzoquinone‐Derived Alcohols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000487] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ze‐Feng Xu
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
- Key Laboratory of Organofluorine ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Weipeng Wang
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Mengjie Cen
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Zijuan Feng
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Shengguo Duan
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
| | - Chuan‐Ying Li
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 China
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21
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Xu ZF, Liu J, Chang X, Chen T, Xu H, Duan S, Li CY. Synthesis of Cyclopropanes via 1,3-Migration of Acyloxy Groups Triggered by Formation of α-Imino Rhodium Carbenes. Org Lett 2020; 22:5163-5169. [PMID: 32551680 DOI: 10.1021/acs.orglett.0c01764] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ze-Feng Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jincheng Liu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
| | - Xin Chang
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
| | - Tao Chen
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
| | - Huaping Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
| | - Shengguo Duan
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou 310018, China
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22
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Caiuby CAD, de Jesus MP, Burtoloso ACB. α-Imino Iridium Carbenes from Imidoyl Sulfoxonium Ylides: Application in the One-Step Synthesis of Indoles. J Org Chem 2020; 85:7433-7445. [DOI: 10.1021/acs.joc.0c00833] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Clarice A. D. Caiuby
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, 13560-970 São Carlos, SP, Brazil
| | - Matheus P. de Jesus
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, 13560-970 São Carlos, SP, Brazil
| | - Antonio C. B. Burtoloso
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, 13560-970 São Carlos, SP, Brazil
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23
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Hong FL, Chen YB, Ye SH, Zhu GY, Zhu XQ, Lu X, Liu RS, Ye LW. Copper-Catalyzed Asymmetric Reaction of Alkenyl Diynes with Styrenes by Formal [3 + 2] Cycloaddition via Cu-Containing All-Carbon 1,3-Dipoles: Access to Chiral Pyrrole-Fused Bridged [2.2.1] Skeletons. J Am Chem Soc 2020; 142:7618-7626. [PMID: 32237743 DOI: 10.1021/jacs.0c01918] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The generation of metal-containing 1,3-dipoles from metal carbenes represents a significant advance in 1,3-dipolar cycloaddition reactions. However, these transformations have so far been limited to reactions based on diazo compounds or triazoles as precursors. Herein, we disclose a copper-catalyzed enantioselective reaction of alkenyl N-propargyl ynamides with styrene derivatives by formal [3 + 2] cycloaddition via Cu-containing all-carbon 1,3-dipoles, which constitutes a novel way for the generation of metal-containing 1,3-dipoles via metal carbenes. This protocol allows the practical and atom-economical synthesis of valuable chiral pyrrole-fused bridged [2.2.1] skeletons in moderate to good yields (up to 90% yield) with excellent diastereoselectivities (dr > 50/1) and generally excellent enantioselectivities (up to >99% ee).
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Affiliation(s)
- Feng-Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Yang-Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Si-Han Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Guang-Yu Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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24
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Abstract
A TMSCl-catalyzed tandem reaction of dihydroisobenzofuran acetals with indoles has been developped, which could provide an efficient and straightforward access to various tetrahydroisoquinolones in moderate to excellent yields. This process involved the first addition of the indoles to acetals, followed by skeletal rearrangement.
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25
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Li G, Zhao M, Xie J, Yao Y, Mou L, Zhang X, Guo X, Sun W, Wang Z, Xu J, Xue J, Hu T, Zhang M, Li M, Hong L. Efficient synthesis of cyclic amidine-based fluorophores via 6π-electrocyclic ring closure. Chem Sci 2020; 11:3586-3591. [PMID: 34094046 PMCID: PMC8152618 DOI: 10.1039/d0sc00798f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Novel 10π-electron cyclic amidines with excellent fluorescence properties were synthesized by a general and efficient 6π-electrocyclic ring closure of ketenimine and imine starting from N-sulfonyl triazoles and arylamines. The photophysical properties of cyclic amidine fluorophores have been studied in detail and have shown good properties of a large Stokes shift, pH insensitivity, low cytotoxicity and higher photostability, which have great potential for biological imaging. Furthermore, this novel fluorophore was successfully applied to the localization of the NK-1 receptor in living systems. Novel 10π-electron cyclic amidines with excellent fluorescence properties were synthesized by a general and efficient 6π-electrocyclic ring closure of ketenimine and imine starting from N-sulfonyl triazoles and arylamines.![]()
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Affiliation(s)
- Guofeng Li
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Man Zhao
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University Lanzhou 730000 China
| | - Ying Yao
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Lingyun Mou
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University Lanzhou 730000 China
| | - Xiaowei Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University Lanzhou 730000 China
| | - Xiaomin Guo
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University Lanzhou 730000 China
| | - Wangsheng Sun
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University Lanzhou 730000 China
| | - Zheng Wang
- Guangdong Key Lab of Nano-Micro Material Research, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School Shenzhen 518055 China
| | - Jiecheng Xu
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Jianzhong Xue
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Tao Hu
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Ming Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University Lanzhou 730000 China
| | - Min Li
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
| | - Liang Hong
- Guangdong Key Laboratory of Chiral Molecular and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou 510006 China
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26
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Catalytic Asymmetric Formal [3+2] Cycloaddition of Azoalkenes with 3-Vinylindoles: Synthesis of 2,3-Dihydropyrroles. iScience 2020; 23:100873. [PMID: 32062452 PMCID: PMC7021545 DOI: 10.1016/j.isci.2020.100873] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/13/2020] [Accepted: 01/27/2020] [Indexed: 12/17/2022] Open
Abstract
Chiral phosphoric acid-catalyzed highly enantioselective formal [3 + 2] cycloaddition reaction of azoalkenes with 3-vinylindoles has been established. Under mild conditions, the projected cycloaddition proceeded smoothly, affording a variety of 2,3-dihydropyrroles in high yields and excellent enantioselectivities, and also in a diastereospecific manner. As opposed to the common 4-atom synthons in the previous literature reports, azoalkenes served as 3-atom synthons. Besides, the observed selectivity was supported by primary theoretical calculation. The unique chemistry of azoalkenes disclosed herein will empower asymmetric synthesis of nitrogen-containing ring structural motifs in a broader context. Chiral phosphoric acid catalyzed formal [3 + 2] cycloaddition reaction 2,3-Dihydropyrroles were enantioselectively synthesized Azoalkenes served as 3-atom synthons
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27
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Cen M, Xiang Q, Xu Y, Duan S, Lv Y, Xu ZF, Li CY. Synthesis of α-cyano sulfone via thermal rearrangement of 1,4-disubstituted triazole mediated by carbene and radical species. Org Chem Front 2020. [DOI: 10.1039/c9qo01340g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
α-Cyano sulfone is produced conveniently from 1,4-disubstituted triazole, which involves carbene, ketenimine and radical species as the key intermediates.
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Affiliation(s)
- Mengjie Cen
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Qiaoyi Xiang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Yiwen Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Shengguo Duan
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Yaohong Lv
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Ze-Feng Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
- Key Laboratory of Organofluorine Chemistry
| | - Chuan-Ying Li
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
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28
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Hari Balakrishnan M, Mannathan S. Palladium/Copper-Catalyzed Denitrogenative Alkylidenation and ortho-Alkynylation Reaction of 1,2,3-Benzotriazin-4(3H)-ones. Org Lett 2019; 22:542-546. [DOI: 10.1021/acs.orglett.9b04297] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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29
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Facile one-pot synthesis of novel highly functionalized dihydro-1H-pyrrole derivatives catalyzed by molecular iodine. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Li Z, Wei Q, Song L, Han W, Wu X, Zhao Y, Xia F, Liu S. Highly Regioselective Radical Transformation of N-Sulfonyl-1,2,3-triazoles in Air. Org Lett 2019; 21:6413-6417. [DOI: 10.1021/acs.orglett.9b02269] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zi Li
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Qinghua Wei
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Longlong Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Wangyujing Han
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Xiang Wu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Yun Zhao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Fei Xia
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
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31
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Xu ZF, An Y, Chen Y, Duan S. Rhodium-catalysed synthesis of fused pyrimidine derivatives employing N-sulfonyl-1,2,3-triazoles as a 1-aza-[4C] synthon. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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32
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Liu Y, Xie P, Li J, Bai WJ, Jiang J. Nickel-Catalyzed Coupling of N-Sulfonyl-1,2,3-triazole with H-Phosphine Oxides: Stereoselective and Site-Selective Synthesis of α-Aminovinylphosphoryl Derivatives. Org Lett 2019; 21:4944-4949. [DOI: 10.1021/acs.orglett.9b01288] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yang Liu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Peng Xie
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Jiagen Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Wen-Ju Bai
- Department of Chemistry, Stanford University, Stanford, California 94305-5580, United States
| | - Jun Jiang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
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33
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Pal K, Sontakke GS, Volla CMR. Rh(II)-Catalyzed Highly Diastereoselective Cascade Transannulation of N-Sulfonyl-1,2,3-triazoles and Vinyl Benzoxazinanones. Org Lett 2019; 21:3716-3720. [DOI: 10.1021/acs.orglett.9b01174] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kuntal Pal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Geetanjali S. Sontakke
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
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34
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Medran NS, La-Venia A, Testero SA. Metal-mediated synthesis of pyrrolines. RSC Adv 2019; 9:6804-6844. [PMID: 35518475 PMCID: PMC9061060 DOI: 10.1039/c8ra10247c] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/18/2019] [Indexed: 12/21/2022] Open
Abstract
The five-membered, nitrogen-containing pyrroline ring is a privileged structure. This ring is present in many bioactive compounds from natural sources. Pyrrolines-the dihydro derivatives of pyrroles-have three structural isomer classes, depending on the location of the double bond: 1-pyrrolines (3,4-dihydro-2H-pyrroles), 2-pyrrolines (2,3-dihydro-1H-pyrroles) and 3-pyrrolines (2,5-dihydro-1H-pyrroles). This review aims to describe the latest advances for the synthesis of pyrrolines by transition metal-catalyzed cyclizations. Only reactions in which the pyrroline ring is formed by metal promotion are described. Transformations of the pyrroline ring in other heterocycles, and the structural manipulations of the pyrroline itself are not discussed. The review is organized into three parts, each covering the metal-mediated synthesis of the three pyrroline isomers. Each part is subdivided according to the metal involved, and concludes with a brief description of notable biological activities within the class.
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Affiliation(s)
- Noelia S Medran
- Instituto de Química Rosario - IQUIR (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 Rosario S2002LRK Argentina http://www.iquir-conicet.gov.ar/eng/
| | - Agustina La-Venia
- Instituto de Química Rosario - IQUIR (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 Rosario S2002LRK Argentina http://www.iquir-conicet.gov.ar/eng/
| | - Sebastian A Testero
- Instituto de Química Rosario - IQUIR (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario Suipacha 531 Rosario S2002LRK Argentina http://www.iquir-conicet.gov.ar/eng/
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35
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Xing S, Xia H, Wang X, Wu D, Xu X, Su Y, Wang K, Zhu B, Guo J. Diastereoselective access to 2-aminoindanonesviathe rhodium(ii)-catalyzed tandem reaction involving O–H insertion and Michael addition. Org Chem Front 2019. [DOI: 10.1039/c9qo00765b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A rhodium(ii)-catalyzed tandem reaction involving O–H insertion ofN-sulfonyl 1,2,3-triazoles and Michael addition has been described. A series of 2-amino-1-indanones were afforded in acceptable to good yields with high diastereoselectivities.
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Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Hanyu Xia
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Xin Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Die Wu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Xinrui Xu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Yunran Su
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Kui Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
| | - Junshuo Guo
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry (Tianjin Normal University)
- Ministry of Education; College of Chemistry
- Tianjin Normal University
- Tianjin 300387
- People's Republic of China
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36
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Xu ZF, Shan L, Zhang W, Cen M, Li CY. Synthesis of α-aminoketones from N-sulfonyl-1,2,3-triazoles via N-sulfinyl imines generated by intramolecular oxygen transfer. Org Chem Front 2019. [DOI: 10.1039/c9qo00126c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sulfinyl imine was generated by intramolecular oxygen transfer of an α-iminocarbene, which led to an α-aminoketone via nucleophilic addition and oxidation.
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Affiliation(s)
- Ze-Feng Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Lihong Shan
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Wan Zhang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Mengjie Cen
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Chuan-Ying Li
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
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37
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Li Y, Yang H, Zhai H. The Expanding Utility of Rhodium-Iminocarbenes: Recent Advances in the Synthesis of Natural Products and Related Scaffolds. Chemistry 2018; 24:12757-12766. [PMID: 29575147 DOI: 10.1002/chem.201800689] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 03/15/2018] [Indexed: 01/29/2023]
Abstract
Rhodium-iminocarbenes that are derived from N-sulfonyl-1,2,3-triazoles have become an important class of reactive species and useful intermediates in organic synthesis. Over the last several years, many practical and versatile approaches involving rhodium-iminocarbene intermediates to synthetically challenging molecules (scaffolds) have been developed. This Minireview mainly summarizes the recent advance of rhodium-iminocarbene involved reactions in the synthesis of natural products and their related scaffolds by the end of 2017. Several applications in important pharmaceuticals are documented as well.
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Affiliation(s)
- Yun Li
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 730000, China
| | - Hongjian Yang
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 730000, China
| | - Hongbin Zhai
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, 518055, China
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38
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Xu H, Liu HW, Chen K, Wang GW. One-Pot Multicomponent Mechanosynthesis of Polysubstituted trans-2,3-Dihydropyrroles and Pyrroles from Amines, Alkyne Esters, and Chalcones. J Org Chem 2018; 83:6035-6049. [PMID: 29745226 DOI: 10.1021/acs.joc.8b00665] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient and practical one-pot multicomponent reaction of amines with alkyne esters and chalcones promoted by I2/PhI(OAc)2 has been developed under solvent-free ball-milling conditions to afford a variety of polysubstituted trans-2,3-dihydropyrroles in moderate to good yields. The present method features a short reaction time, mild reaction conditions, broad substrate scope, and feasibility of large-scale synthesis. Intriguingly, this protocol can also furnish the corresponding synthetically more attractive pyrroles with the addition of an oxidant in a one-pot way.
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Affiliation(s)
- Hui Xu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Hong-Wei Liu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Kuan Chen
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Guan-Wu Wang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry , University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China.,State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou , Gansu 730000 , P. R. China
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39
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Xu B, Zhang ZM, Zhou L, Zhang J. Direct Asymmetric Formal [3 + 2] Cycloaddition Reaction of Isocyanoesters with β-Trifluoromethyl β,β-Disubstituted Enones Leading to Optically Active Dihydropyrroles. Org Lett 2018; 20:2716-2719. [DOI: 10.1021/acs.orglett.8b00925] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bing Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Lujia Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
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40
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Yu S, An Y, Wang W, Xu ZF, Li CY. Synthesis of Piperidine Derivatives by Rhodium- Catalyzed Tandem Reaction of N
-Sulfonyl-1,2,3-Triazole and Vinyl Ether. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800191] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sisi Yu
- Department of Chemistry; Zhejiang Sci-Tech University, Xiasha West Higher Education District; Hangzhou 310018 People's Republic of China
| | - Yuehui An
- Department of Chemistry; Zhejiang Sci-Tech University, Xiasha West Higher Education District; Hangzhou 310018 People's Republic of China
| | - Wenlin Wang
- Department of Chemistry; Zhejiang Sci-Tech University, Xiasha West Higher Education District; Hangzhou 310018 People's Republic of China
| | - Ze-Feng Xu
- Department of Chemistry; Zhejiang Sci-Tech University, Xiasha West Higher Education District; Hangzhou 310018 People's Republic of China
| | - Chuan-Ying Li
- Department of Chemistry; Zhejiang Sci-Tech University, Xiasha West Higher Education District; Hangzhou 310018 People's Republic of China
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41
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Nakamuro T, Hagiwara K, Miura T, Murakami M. Enantioselective Denitrogenative Annulation of 1
H
‐Tetrazoles with Styrenes Catalyzed by Rhodium. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Kohei Hagiwara
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
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42
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Zeng JC, Xu H, Huang RL, Yu F, Zhang Z. Facile synthesis of polysubstituted 2,3-dihydropyrroles and pyrroles from Mn(OAc)3-promoted oxidative cyclization of alkenes with amines/alkyne esters or enaminone esters. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Nakamuro T, Hagiwara K, Miura T, Murakami M. Enantioselective Denitrogenative Annulation of 1
H
‐Tetrazoles with Styrenes Catalyzed by Rhodium. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201801283] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takayuki Nakamuro
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Kohei Hagiwara
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University Katsura Kyoto 615-8510 Japan
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44
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Xu ZF, Dai H, Shan L, Li CY. Metal-Free Synthesis of (E)-Monofluoroenamine from 1-Sulfonyl-1,2,3-triazole and Et 2O·BF 3 via Stereospecific Fluorination of α-Diazoimine. Org Lett 2018; 20:1054-1057. [PMID: 29400973 DOI: 10.1021/acs.orglett.7b04014] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A general, stereospecific, and straightforward method for the rapid preparation of functionalized (E)-monofluoroenamines is reported. Rather than transition metals (Rh, Ni, Pd, Cu, Ag, etc.), Et2O·BF3 was employed to promote the formation of α-diazoimine through the Dimroth equilibrium of common 1-sulfonyl-1,2,3-triazole for the first time. An overall migration of fluoride from boron to the diazo-linked carbon of α-diazoimine was achieved. Derivations and late-stage modification of bioactive molecule were conducted. A plausible mechanism was also proposed.
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Affiliation(s)
- Ze-Feng Xu
- Department of Chemistry, Zhejiang Sci-Tech University , Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Haican Dai
- Department of Chemistry, Zhejiang Sci-Tech University , Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Lihong Shan
- Department of Chemistry, Zhejiang Sci-Tech University , Xiasha West Higher Education District, Hangzhou, 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Zhejiang Sci-Tech University , Xiasha West Higher Education District, Hangzhou, 310018, China
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45
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Zhang C, Chang S, Qiu L, Xu X. Chemodivergent synthesis of multi-substituted/fused pyrroles via copper-catalyzed carbene cascade reaction of propargyl α-iminodiazoacetates. Chem Commun (Camb) 2018; 52:12470-12473. [PMID: 27711472 DOI: 10.1039/c6cc06864b] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel cascade reaction of alkynyl-tethered α-iminodiazoacetates has been developed, which provides a general access to both multi-substituted and fused pyrroles in high yields with a broad substrate scope. The γ-imino carbene is proposed as the key intermediate in this divergent reaction and followed by unpresented transformations.
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Affiliation(s)
- Cheng Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Sailan Chang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Lihua Qiu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Xinfang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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46
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Xu ZF, Yu X, Yang D, Li CY. Metal-free synthesis of 2-aminonaphthalenes by intramolecular transannulation of 1-sulfonyl-4-(2-alkenylphenyl)-1,2,3-triazoles. Org Biomol Chem 2018; 15:3161-3164. [PMID: 28345711 DOI: 10.1039/c7ob00637c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A facile metal-free synthesis of naphthalenes by intramolecular transannulation of 1-sulfonyl-4-(2-alkenylphenyl)-1,2,3-triazoles was realized. The in situ formed ketenimine was proposed as the key intermediate, and the desired 2-aminonaphthalenes were generated in up to 87% yield in refluxing 1,2-dichloroethane without any catalyst or additive.
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Affiliation(s)
- Ze-Feng Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China.
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47
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Yang D, Shan L, Xu ZF, Li CY. Metal-free synthesis of imidazole by BF3·Et2O promoted denitrogenative transannulation of N-sulfonyl-1,2,3-triazole. Org Biomol Chem 2018; 16:1461-1464. [DOI: 10.1039/c8ob00083b] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first BF3·Et2O promoted metal-free denitrogenative transannulation of N-sulfonyl-1,2,3-triazole was reported, leading to the synthesis of functionalized imidazoles with a broad scope.
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Affiliation(s)
- Dongdong Yang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Lihong Shan
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Ze-Feng Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Chuan-Ying Li
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- China
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48
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Xie Y, Li Y, Chen X, Liu Y, Zhang W. Copper/amine-catalyzed formal regioselective [3 + 2] cycloaddition of an α,β-unsaturated O-acetyl oxime with enals. Org Chem Front 2018. [DOI: 10.1039/c8qo00204e] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper/amine co-catalyzed formal regioselective [3 + 2] cycloaddition reaction of an O-acyl oxime with α,β-unsaturated aldehydes is developed.
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Affiliation(s)
- Ying Xie
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Zigong 643000
- China
| | - Yulong Li
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Zigong 643000
- China
| | - Xun Chen
- School of Pharmacy
- Hainan Medical University
- Haikou
- China
| | - Yingle Liu
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Zigong 643000
- China
| | - Wei Zhang
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Zigong 643000
- China
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49
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Ma X, Xie X, Liu L, Xia R, Li T, Wang H. Facile synthesis of pyrroloindoles via a rhodium(ii)-catalyzed annulation of 3-benzylidene-indolin-2-ones and α-imino carbenes. Chem Commun (Camb) 2018; 54:1595-1598. [DOI: 10.1039/c7cc08438b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A novel carbenoid strategy to construct pyrrole-fused indole alkaloids.
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Affiliation(s)
- Xueji Ma
- Department of Chemistry and Chemical Engineering, Xinxiang University
- Xinxiang 453003
- China
| | - Xuemei Xie
- Department of Chemistry and Chemical Engineering, Xinxiang University
- Xinxiang 453003
- China
| | - Li Liu
- Department of Chemistry and Chemical Engineering, Xinxiang University
- Xinxiang 453003
- China
| | - Ran Xia
- Department of Chemistry and Chemical Engineering, Xinxiang University
- Xinxiang 453003
- China
| | - Tongyu Li
- The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University
- Hangzhou
- China
| | - Hangxiang Wang
- The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University
- Hangzhou
- China
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50
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Pal K, Hoque A, Volla CMR. Rh-Catalyzed Denitrogenative Reaction of N
-Sulfonyl-1,2,3-triazoles with Isatoic Anhydrides and Oxadiazolones. Chemistry 2017; 24:2558-2564. [DOI: 10.1002/chem.201705036] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Indexed: 02/04/2023]
Affiliation(s)
- Kuntal Pal
- Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 India
| | - Abdul Hoque
- Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 India
| | - Chandra M. R. Volla
- Department of Chemistry; Indian Institute of Technology-Bombay, Powai; Mumbai 400076 India
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