201
|
Xuan J, He XK, Xiao WJ. Visible light-promoted ring-opening functionalization of three-membered carbo- and heterocycles. Chem Soc Rev 2020; 49:2546-2556. [DOI: 10.1039/c9cs00523d] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this tutorial review, synthetic and mechanistic aspects of visible light-promoted ring-opening functionalization of three-membered carbo- and heterocycles are highlighted.
Collapse
Affiliation(s)
- Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- College of Chemistry & Chemical Engineering
- Anhui University
- Hefei
- People's Republic of China
| | - Xiang-Kui He
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials
- College of Chemistry & Chemical Engineering
- Anhui University
- Hefei
- People's Republic of China
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan
| |
Collapse
|
202
|
Li T, Yan D, Cui C, Song X, Chang J. A thermal decarboxylative Cloke–Wilson rearrangement of dispirocyclopropanes derived from para-quinone methides and bromo-Meldrum's acids: an approach to synthesize spirobutyrolactone para-dienones. Org Chem Front 2020. [DOI: 10.1039/d0qo00770f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An unprecedented approach to synthesize spirobutyrolactone para-dienones from para-quinone methides and bromo-Meldrum's acids has been developed.
Collapse
Affiliation(s)
- Tong Li
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Dandan Yan
- Shanghai Gengcai New Material Technology Co. Ltd
- Shanghai 201108
- China
| | - Chaoxing Cui
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xixi Song
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Junbiao Chang
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| |
Collapse
|
203
|
Shimizu M, Morimoto T, Yanagi Y, Mizota I, Zhu Y. An umpolung reaction of α-iminothioesters possessing a cyclopropyl group. RSC Adv 2020; 10:9955-9963. [PMID: 35498585 PMCID: PMC9050218 DOI: 10.1039/d0ra01152e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/03/2020] [Indexed: 12/30/2022] Open
Abstract
An umpolung N-alkylation reaction of α-cyclopropyl α-iminothioesters with diethylaluminum chloride or ethylmagnesium bromide affords the corresponding N-ethylated α-aminothioesters in good yields. Subsequent oxidation and reaction of the N-ethylated product with a thiolate or a chloride anion proceed effectively to give the ring-opened products in good yields. In contrast, relatively “hard” nucleophiles did not give the ring-opened products but gave the addition products to the iminium carbon. Tandem N-alkylation/oxidation/second addition reaction to α-cyclopropyl α-imino(thio)esters gave N-alkylated ring-opened products in good yields.![]()
Collapse
Affiliation(s)
- Makoto Shimizu
- School of Energy Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- Department of Chemistry for Materials
| | - Takayoshi Morimoto
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Yusuke Yanagi
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Isao Mizota
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Yusong Zhu
- School of Energy Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| |
Collapse
|
204
|
Sun JC, Li JL, Ji CB, Peng YY, Zeng XP. Construction of Cyclopropa[c]coumarins via cascade Michael-alkylation process of 3-cyanocoumarin with 2-bromomalonate. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
205
|
Kuboki Y, Arisawa M, Murai K. Ring-opening 1,3-arylboration of arylcyclopropanes mediated by BCl3. RSC Adv 2020; 10:37797-37799. [PMID: 35515187 PMCID: PMC9057229 DOI: 10.1039/d0ra08151e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/07/2020] [Indexed: 12/26/2022] Open
Abstract
Herein, we report a ring-opening 1,3-arylboration of aryl cyclopropanes using BCl3 in the presence of arene nucleophiles.
Collapse
Affiliation(s)
- Yuichi Kuboki
- Graduate School of Pharmaceutical Sciences
- Osaka University
- Suita
- Japan
| | - Mitsuhiro Arisawa
- Graduate School of Pharmaceutical Sciences
- Osaka University
- Suita
- Japan
| | - Kenichi Murai
- Graduate School of Pharmaceutical Sciences
- Osaka University
- Suita
- Japan
| |
Collapse
|
206
|
Chang F, Shen B, Wang S, Lin L, Feng X. Lewis acid catalysed asymmetric cascade reaction of cyclopropyl ketones: concise synthesis of pyrrolobenzothiazoles. Chem Commun (Camb) 2020; 56:13429-13432. [DOI: 10.1039/d0cc05667g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A concise method to synthesize pyrrolobenzothiazoles via a cascade reaction of cyclopropyl ketones was developed by using a chiral N,N′-dioxide-scandium(iii) complex catalyst.
Collapse
Affiliation(s)
- Fenzhen Chang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Bin Shen
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Sijing Wang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| |
Collapse
|
207
|
Zhang D, Yin L, Zhong J, Cheng Q, Cai H, Chen Y, Zhang QF. Ring-opening reactions of donor–acceptor cyclopropanes with cyclic ketals and thiol ketals. Org Biomol Chem 2020; 18:6492-6496. [DOI: 10.1039/d0ob01530j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cyclic (thiol) ketals were used as hetero-nucleophiles for the ring opening of donor–acceptor cyclopropanes to afford functionalized diethers.
Collapse
Affiliation(s)
- Dongxin Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Lei Yin
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Junchao Zhong
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Qihang Cheng
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Hu Cai
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Yan Chen
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Qian-Feng Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| |
Collapse
|
208
|
Pirenne V, Traboulsi I, Rouvière L, Lusseau J, Massip S, Bassani DM, Robert F, Landais Y. p-Anisaldehyde-Photosensitized Sulfonylcyanation of Chiral Cyclobutenes: Enantioselective Access to Cyclic and Acyclic Systems Bearing All-Carbon Quaternary Stereocenters. Org Lett 2019; 22:575-579. [DOI: 10.1021/acs.orglett.9b04345] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Vincent Pirenne
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| | - Iman Traboulsi
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| | - Lisa Rouvière
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| | - Jonathan Lusseau
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| | - Stéphane Massip
- European Institute of Chemistry and Biology (IECB), University of Bordeaux, 2 Rue Robert Escarpit, 33600 Pessac, France
| | - Dario M. Bassani
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| | - Frédéric Robert
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| | - Yannick Landais
- CNRS, Bordeaux
INP, ISM, UMR 5255, University of Bordeaux, F-33400 Talence, France
| |
Collapse
|
209
|
Taily IM, Saha D, Banerjee P. [3+3] Annulation via Ring Opening/Cyclization of Donor-Acceptor Cyclopropanes with (Un)symmetrical Ureas: A Quick Access to Highly Functionalized Tetrahydropyrimidinones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901400] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Irshad Maajid Taily
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| | - Debarshi Saha
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road 140001 Rupnagar Punjab India
| |
Collapse
|
210
|
Hu H, Xu J, Wang F, Dong S, Liu X, Feng X. Chiral Sc III- N, N'-Dioxide-Catalyzed 1,3-Dipolar Cycloaddition of Diaziridines with Chalcones. Org Lett 2019; 22:93-97. [PMID: 31833774 DOI: 10.1021/acs.orglett.9b04007] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly enantioselective 1,3-dipolar cycloaddition of meso-diaziridines with chalcones was realized by utilizing the ScIII-N,N'-dioxide complex as the catalyst. In this transformation, the 1,3-dipole intermediates generated from the C-N bond cleavage of diaziridine were trapped by chiral N,N'-dioxide/scandium(III) complex activated chalcones to undergo enantioselective 1,3-dipolar cycloaddition. A range of chiral 1,5-diazabicylo[3.3.0]octane derivatives were readily synthesized in good yields with high diastereo- and enantioselectivities.
Collapse
Affiliation(s)
- Haipeng Hu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Jinxiu Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Fang Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , China
| |
Collapse
|
211
|
Wang X, Zheng Z, Xie J, Gu X, Mu Q, Yin G, Ye F, Xu Z, Xu L. Controllable Si−C Bond Activation Enables Stereocontrol in the Palladium‐Catalyzed [4+2] Annulation of Cyclopropenes with Benzosilacyclobutanes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913060] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xing‐Ben Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Zhan‐Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Jia‐Le Xie
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xing‐Wei Gu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Qiu‐Chao Mu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Guan‐Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Fei Ye
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Li‐Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of EducationHangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
- Suzhou Research Institute and State Key Laboratory for Oxo Synthesis and Selective OxidationLanzhou Institute of Chemical PhysicsChinese Academy of Sciences P. R. China
| |
Collapse
|
212
|
Werz DB, Biju AT. Über bislang nicht beachtete Parallelen in der Reaktivität von Arinen und Donor‐Akzeptor‐Cyclopropanen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909213] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Daniel B. Werz
- Technische Universität BraunschweigInstitut für Organische Chemie Hagenring 30 38106 Braunschweig Deutschland
| | - Akkattu T. Biju
- Department of Organic ChemistryIndian Institute of Science Bangalore 560012 Indien
| |
Collapse
|
213
|
Wang XB, Zheng ZJ, Xie JL, Gu XW, Mu QC, Yin GW, Ye F, Xu Z, Xu LW. Controllable Si-C Bond Activation Enables Stereocontrol in the Palladium-Catalyzed [4+2] Annulation of Cyclopropenes with Benzosilacyclobutanes. Angew Chem Int Ed Engl 2019; 59:790-797. [PMID: 31829499 DOI: 10.1002/anie.201913060] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Indexed: 12/15/2022]
Abstract
A novel and unusual palladium-catalyzed [4+2] annulation of cyclopropenes with benzosilacyclobutanes is reported. This reaction occurred through chemoselective Si-C(sp2 ) bond activation in synergy with ring expansion/insertion of cyclopropenes to form new C(sp2 )-C(sp3 ) and Si-C(sp3 ) bonds. An array of previously elusive bicyclic skeleton with high strain, silabicyclo[4.1.0]heptanes, were formed in good yields with excellent diastereoselectivity under mild conditions. An asymmetric version of the reaction with a chiral phosphoramidite ligand furnished a variety of chiral bicyclic silaheterocycle derivatives with good enantioselectivity (up to 95.5:4.5 er). Owing to the mild reaction conditions, the good stereoselectivity profile, and the ready availability of the functionalized precursors, this process constitutes a useful and straightforward strategy for the synthesis of densely functionalized silacycles.
Collapse
Affiliation(s)
- Xing-Ben Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Jia-Le Xie
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Xing-Wei Gu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Qiu-Chao Mu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Guan-Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Fei Ye
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, P. R. China.,Suzhou Research Institute and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, P. R. China
| |
Collapse
|
214
|
Zhang X, Feng M, Yang G, Chai Z. Sc(OTf)3-Catalyzed Chemodivergent Annulations of γ-Butyrolactone-Fused Cyclopropanes with Anthranils. J Org Chem 2019; 85:430-440. [DOI: 10.1021/acs.joc.9b02444] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xingyu Zhang
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Manli Feng
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Gaosheng Yang
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Zhuo Chai
- MOE Key Laboratory of Functionalized Molecular Solids, Anhui Key Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| |
Collapse
|
215
|
Boichenko MA, Andreev IA, Chagarovskiy AO, Levina II, Zhokhov SS, Trushkov IV, Ivanova OA. Ring Opening of Donor–Acceptor Cyclopropanes with Cyanide Ion and Its Surrogates. J Org Chem 2019; 85:1146-1157. [DOI: 10.1021/acs.joc.9b03098] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maksim A. Boichenko
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russian Federation
| | - Ivan A. Andreev
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russian Federation
- Laboratory of Chemical Synthesis, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russian Federation
| | - Alexey O. Chagarovskiy
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russian Federation
- Laboratory of Chemical Synthesis, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russian Federation
| | - Irina I. Levina
- N. M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow 119334, Russian Federation
| | - Sergey S. Zhokhov
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russian Federation
| | - Igor V. Trushkov
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russian Federation
- Laboratory of Chemical Synthesis, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela 1, Moscow 117997, Russian Federation
| | - Olga A. Ivanova
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russian Federation
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russian Federation
| |
Collapse
|
216
|
Xia M, Song L, Li F, Hou Y, Shi Z, Cao X. Construction of Fused‐oxa‐[n.2.1] Skeletons by Tandem Intramolecular [3+2] Cycloaddition/O‐H Insertion/Ester Exchange of Cyclopropanes with Diazocarbonyls. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Miao‐Miao Xia
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 Peoples's Republic of China
| | - Le‐Le Song
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 Peoples's Republic of China
| | - Feng‐Xing Li
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 Peoples's Republic of China
| | - Yan‐Ni Hou
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 Peoples's Republic of China
| | - Zi‐Fa Shi
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 Peoples's Republic of China
| | - Xiao‐Ping Cao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 Peoples's Republic of China
| |
Collapse
|
217
|
Li J, Zhu S, Xu Q, Liu L, Yan S. Brønsted acid mediated intramolecular cyclopropane ring expansion/[4 + 2]-cycloaddition. Org Biomol Chem 2019; 17:10004-10008. [PMID: 31754676 DOI: 10.1039/c9ob02379h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A cascade reaction of 3-hydroxy-2-phenylisoindolin-1-one and cyclopropyl ketone has been developed via a BrØnsted acid-promoted ring-opening/intramolecular cross-cycloaddition/[4 + 2]-cycloaddition process. The developed methodology provides straightforward access to pentacyclic isoindolin-1-one derivatives under simple reaction conditions.
Collapse
Affiliation(s)
- Jian Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmaceutical Engineering & Life Sciences, Changzhou University, Changzhou, 213164, China.
| | | | | | | | | |
Collapse
|
218
|
Akaev AA, Melnikov MY, Budynina EM. Chameleon-Like Activating Nature of the Spirooxindole Group in Donor-Acceptor Cyclopropanes. Org Lett 2019; 21:9795-9799. [PMID: 31763847 DOI: 10.1021/acs.orglett.9b04153] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The concept of a chameleon activating group is considered in the context of donor-acceptor cyclopropane chemistry. When spiro-conjugated with cyclopropane, oxindole can act as an acceptor or a donor depending on the electronic nature of vicinal substituents. This dichotomy is reflected in the alteration of chemoselectivity of spiro[oxindole-1,3'-cyclopropane] ring opening with nucleophiles.
Collapse
Affiliation(s)
- Andrey A Akaev
- Department of Chemistry , Lomonosov Moscow State University , Leninskie gory 1-3 , Moscow 119991 , Russia
| | - Mikhail Ya Melnikov
- Department of Chemistry , Lomonosov Moscow State University , Leninskie gory 1-3 , Moscow 119991 , Russia
| | - Ekaterina M Budynina
- Department of Chemistry , Lomonosov Moscow State University , Leninskie gory 1-3 , Moscow 119991 , Russia
| |
Collapse
|
219
|
Chidley T, Jameel I, Rizwan S, Peixoto PA, Pouységu L, Quideau S, Hopkins WS, Murphy GK. Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal-free Cyclopropanation with Alkenes. Angew Chem Int Ed Engl 2019; 58:16959-16965. [PMID: 31486231 DOI: 10.1002/anie.201908994] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Indexed: 12/21/2022]
Abstract
A facile and highly chemoselective synthesis of doubly activated cyclopropanes is reported where mixtures of alkenes and β-dicarbonyl-derived iodonium ylides are irradiated with light from blue LEDs. This metal-free synthesis gives cyclopropanes in yields up to 96 %, is operative with cyclic and acyclic ylides, and proceeds with a variety of electronically-diverse alkenes. Computational analysis explains the high selectivity observed, which derives from exclusive HOMO to LUMO excitation, instead of free carbene generation. The procedure is operationally simple, uses no photocatalyst, and provides access in one step to important building blocks for complex molecule synthesis.
Collapse
Affiliation(s)
- Tristan Chidley
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Islam Jameel
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Shafa Rizwan
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Philippe A Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Laurent Pouységu
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - W Scott Hopkins
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Graham K Murphy
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| |
Collapse
|
220
|
Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal‐free Cyclopropanation with Alkenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
221
|
Xu M, Bullard KK, Nicely AM, Gutekunst WR. Resonance promoted ring-opening metathesis polymerization of twisted amides. Chem Sci 2019; 10:9729-9734. [PMID: 32055341 PMCID: PMC6993617 DOI: 10.1039/c9sc03602d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 08/30/2019] [Indexed: 12/31/2022] Open
Abstract
The living ring-opening metathesis polymerization (ROMP) of an unsaturated twisted amide using the third-generation Grubbs initiator is described. Unlike prior examples of ROMP monomers that rely on angular or steric strain for propagation, this system is driven by resonance destabilization of the amide that arises from geometric constraints of the bicyclic framework. Upon ring-opening, the amide can rotate and rehybridize to give a stabilized and planar conjugated system that promotes living propagation. The absence of other strain elements in the twisted amide is supported by the inability of a carbon analogue of the monomer to polymerize and computational studies that find resonance destabilization accounts for 11.3 kcal mol-1 of the overall 12.0 kcal mol-1 ring strain. The twisted amide polymerization is capable of preparing high molecular weight polymers rapidly at room temperature, and post-polymerization modification combined with 2D NMR spectroscopy confirms a regioirregular polymer microstructure.
Collapse
Affiliation(s)
- Mizhi Xu
- School of Chemistry and Biochemistry , Georgia Institute of Technology , 901 Atlantic Drive NW , Atlanta , Georgia 30332 , USA .
| | - Krista K Bullard
- School of Chemistry and Biochemistry , Georgia Institute of Technology , 901 Atlantic Drive NW , Atlanta , Georgia 30332 , USA .
| | - Aja M Nicely
- School of Chemistry and Biochemistry , Georgia Institute of Technology , 901 Atlantic Drive NW , Atlanta , Georgia 30332 , USA .
| | - Will R Gutekunst
- School of Chemistry and Biochemistry , Georgia Institute of Technology , 901 Atlantic Drive NW , Atlanta , Georgia 30332 , USA .
| |
Collapse
|
222
|
Augustin AU, Merz JL, Jones PG, Mlostoń G, Werz DB. (4 + 3)-Cycloaddition of Donor–Acceptor Cyclopropanes with Thiochalcones: A Diastereoselective Access to Tetrahydrothiepines. Org Lett 2019; 21:9405-9409. [DOI: 10.1021/acs.orglett.9b03623] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- André U. Augustin
- Technische Universität Braunschweig, Institute of Organic Chemistry and Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - J. Luca Merz
- Technische Universität Braunschweig, Institute of Organic Chemistry and Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Technische Universität Braunschweig, Institute of Organic Chemistry and Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| | - Grzegorz Mlostoń
- Department of Organic and Applied Chemistry, University of Łodź, Tamka 12, 91-403 Łodź, Poland
| | - Daniel B. Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry and Institute of Inorganic and Analytical Chemistry, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
223
|
Lanke V, Zhang FG, Kaushansky A, Marek I. Diastereoselective ring opening of fully-substituted cyclopropanes via intramolecular Friedel-Crafts alkylation. Chem Sci 2019; 10:9548-9554. [PMID: 32055326 PMCID: PMC6979362 DOI: 10.1039/c9sc03832a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 08/26/2019] [Indexed: 12/15/2022] Open
Abstract
We herein disclose a diastereoselective ring opening of non-donor-acceptor cyclopropanes via an intramolecular Friedel-Crafts alkylation en route to functionalized dihydronaphthalene scaffolds possessing quaternary carbon stereocentres. The transformation proceeds through a selective bond breaking at the most alkylated carbon centre with a pure retention of configuration. Mechanistic investigations and computational studies revealed that alkoxy functionality is the key for selective bond breaking leading to a complete retention of configuration.
Collapse
Affiliation(s)
- Veeranjaneyulu Lanke
- Schulich Faculty of Chemistry , Technion - Israel Institute of Technology , Technion City 3200009 , Haifa , Israel .
| | - Fa-Guang Zhang
- Schulich Faculty of Chemistry , Technion - Israel Institute of Technology , Technion City 3200009 , Haifa , Israel .
| | - Alexander Kaushansky
- Schulich Faculty of Chemistry , Technion - Israel Institute of Technology , Technion City 3200009 , Haifa , Israel .
| | - Ilan Marek
- Schulich Faculty of Chemistry , Technion - Israel Institute of Technology , Technion City 3200009 , Haifa , Israel .
| |
Collapse
|
224
|
Ivanova OA, Trushkov IV. Donor-Acceptor Cyclopropanes in the Synthesis of Carbocycles. CHEM REC 2019; 19:2189-2208. [PMID: 30707497 DOI: 10.1002/tcr.201800166] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 01/07/2019] [Indexed: 01/24/2023]
Abstract
Donor-acceptor cyclopropanes not only participate in a broad range of ring openings with nucleophiles, electrophiles, radical and red-ox agents, but also are excellent substrates for various (3+n)-cycloaddition and (3+n)-annulation processes. Moreover, under treatment with Lewis acid donor-acceptor cyclopropanes can produce new ring systems via isomerization or cyclodimerization. Authors' contribution to the synthesis of diverse carbocycles from donor-acceptor cyclopropanes is summarized in this account.
Collapse
Affiliation(s)
- Olga A Ivanova
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russian Federation.,N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, Moscow, 119991, Russian Federation
| | - Igor V Trushkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, Moscow, 119991, Russian Federation.,Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Samory Mashela, 1, Moscow, 117997, Russian Federation
| |
Collapse
|
225
|
Liu J, Liu R, Wei Y, Shi M. Recent Developments in Cyclopropane Cycloaddition Reactions. TRENDS IN CHEMISTRY 2019. [DOI: 10.1016/j.trechm.2019.06.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
226
|
Tong D, Wu J, Bazinski N, Koo D, Vemula N, Pagenkopf BL. Synthesis of Functionalized Tetrahydropyridines by SnCl 4 -Mediated [4+2] Cycloaddition between Donor-Acceptor Cyclobutanes and Nitriles. Chemistry 2019; 25:15244-15247. [PMID: 31529549 DOI: 10.1002/chem.201903833] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/11/2019] [Indexed: 01/12/2023]
Abstract
Cycloadditions of strained carbocycles promoted by Lewis acids are powerful methods to construct heterocyclic frameworks. In fact, the formal [3+2] cycloadditions of donor-acceptor (DA) cyclopropanes with nitriles has seen particular success in synthesis. In this work, we report on the first [4+2] cycloaddition of nitriles with DA cyclobutanes by Lewis acid activation. Tetrahydropyridine derivatives were obtained in up to 91 % yield from various aryl-activated cyclobutane diesters and aliphatic or aromatic nitriles.
Collapse
Affiliation(s)
- David Tong
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Jackie Wu
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Nathan Bazinski
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Donghyun Koo
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Naresh Vemula
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Brian L Pagenkopf
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| |
Collapse
|
227
|
Maximiano AP, Sá MM. Stereoselective Synthesis of Cyclopropylidene Iminolactones and Functionalized Cyclopropanecarboxamides Mediated by Triflic Acid. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Adrielle P. Maximiano
- Departamento de Química; Universidade Federal de Santa Catarina; SC 88040-900 Florianópolis Brazil
| | - Marcus M. Sá
- Departamento de Química; Universidade Federal de Santa Catarina; SC 88040-900 Florianópolis Brazil
| |
Collapse
|
228
|
Wang D, Zhao J, Chen J, Xu Q, Li H. Intramolecular Arylative Ring Opening of Donor‐Acceptor Cyclopropanes in the Presence of Triflic Acid: Synthesis of 9
H
‐Fluorenes and 9,10‐Dihydrophenanthrenes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dongyang Wang
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Jing Zhao
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Jun Chen
- Beijing Institute of Microchemistry No.15 Xinjiangongmen Road, Haidian District Beijing 100091 China
| | - Qing Xu
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| | - Huan Li
- College of Chemistry and Materials EngineeringWenzhou University Wenzhou, Zhejiang 325035 China
| |
Collapse
|
229
|
Zhu Y, Zhang M, Li T, Song X. AlCl
3
‐Promoted Stereospecific Cloke‐Wilson Rearrangement of Spirocyclopropyl Barbiturates for the Synthesis of Substituted Dihydrofuro[2,3‐
d
]pyrimidines. ChemistrySelect 2019. [DOI: 10.1002/slct.201903330] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yuanyuan Zhu
- College of Chemistry and Molecular EngineeringZhengzhou University No.100 Science Avenue Zhengzhou 450001, P. R. China
| | - Minli Zhang
- College of Chemistry and Molecular EngineeringZhengzhou University No.100 Science Avenue Zhengzhou 450001, P. R. China
| | - Tong Li
- College of Chemistry and Molecular EngineeringZhengzhou University No.100 Science Avenue Zhengzhou 450001, P. R. China
| | - Xixi Song
- College of Chemistry and Molecular EngineeringZhengzhou University No.100 Science Avenue Zhengzhou 450001, P. R. China
| |
Collapse
|
230
|
Photoredox-catalyzed oxo-amination of aryl cyclopropanes. Nat Commun 2019; 10:4367. [PMID: 31554813 PMCID: PMC6761154 DOI: 10.1038/s41467-019-12403-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 09/03/2019] [Indexed: 01/14/2023] Open
Abstract
Cyclopropanes represent a class of versatile building blocks in modern organic synthesis. While the release of ring strain offers a thermodynamic driving force, the control of selectivity for C–C bond cleavage and the subsequent regiochemistry of the functionalization remains difficult, especially for unactivated cyclopropanes. Here we report a photoredox-coupled ring-opening oxo-amination of electronically unbiased cyclopropanes, which enables the expedient construction of a host of structurally diverse β-amino ketone derivatives. Through one electron oxidation, the relatively inert aryl cyclopropanes are readily converted into reactive radical cation intermediates, which in turn participate in the ensuing ring-opening functionalizations. Based on mechanistic studies, the present oxo-amination is proposed to proceed through an SN2-like nucleophilic attack/ring-opening manifold. This protocol features wide substrate scope, mild reaction conditions, and use of dioxygen as an oxidant both for catalyst regeneration and oxygen-incorporation. Moreover, a one-pot formal aminoacylation of olefins is described through a sequential cyclopropanation/oxo-amination. The ring-opening and functionalization of electronically unbiased cyclopropanes is highly challenging to achieve in a regioselective fashion. Here, the authors report a mild photoredox-coupled oxoamination of electronically unactivated aryl cyclopropanes with simple azaarenes and molecular oxygen.
Collapse
|
231
|
Augustin AU, Jones PG, Werz DB. Ring-Opening 1,3-Aminochalcogenation of Donor-Acceptor Cyclopropanes: A Three-Component Approach. Chemistry 2019; 25:11620-11624. [PMID: 31282001 PMCID: PMC6771889 DOI: 10.1002/chem.201902160] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/28/2019] [Indexed: 12/21/2022]
Abstract
A 1,3-aminothiolation was realized by reacting 2-substituted cyclopropane 1,1-dicarboxylates with sulfonamides and N-(arylthio)succinimides. Under Sn(OTf)2 catalysis the transformation proceeded smoothly to the corresponding ring-opened products bearing the sulfonamide in the 1-position next to the donor and the arylthio residue in the 3-position next to the acceptor. The procedure was extended to the corresponding selenium analogues by employing N-(phenylseleno)succinimides as an electrophilic selenium source.
Collapse
Affiliation(s)
- André U. Augustin
- Institute of Organic ChemistryTechnische Universität BraunschweigHagenring 3038106BraunschweigGermany
| | - Peter G. Jones
- Institute of Inorganic and Analytical ChemistryTechnische Universität BraunschweigHagenring 3038106BraunschweigGermany
| | - Daniel B. Werz
- Institute of Organic ChemistryTechnische Universität BraunschweigHagenring 3038106BraunschweigGermany
| |
Collapse
|
232
|
Zhao ZY, Nie YX, Tang RH, Yin GW, Cao J, Xu Z, Cui YM, Zheng ZJ, Xu LW. Enantioselective Rhodium-Catalyzed Desymmetric Hydrosilylation of Cyclopropenes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02623] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zhi-Yuan Zhao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Yi-Xue Nie
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Ren-He Tang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Guan-Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Jian Cao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Yu-Ming Cui
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou 311121, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI) of Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences and University of Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China
| |
Collapse
|
233
|
Borisova IA, Tarasova AV, Potapov KV, Novikov RA, Tomilov YV. Reactions of donor-acceptor cyclopropanes or benzylidenemalonate with benzyl azide by generating gallium trichloride 1,2-zwitterionic complexes. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2584-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
234
|
Mishra M, De PB, Pradhan S, Punniyamurthy T. Stereospecific Copper(II)-Catalyzed Tandem Ring Opening/Oxidative Alkylation of Donor-Acceptor Cyclopropanes with Hydrazones: Synthesis of Tetrahydropyridazines. J Org Chem 2019; 84:10901-10910. [PMID: 31385502 DOI: 10.1021/acs.joc.9b01506] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aerobic copper(II)-catalyzed tandem ring opening and oxidative C-H alkylation of donor-acceptor cyclopropanes with bisaryl hydrazones is accomplished to produce tetrahydropyridazines, in which copper(II) plays dual role as a Lewis acid as well as redox catalyst. The reaction is stereospecific, and optically active cyclopropanes can be reacted with high optical purities (89-98% enantiomeric excess). The substrate scope, functional group tolerance, dual role of the copper(II) catalyst, and the use of air as an oxidant are the important practical features. A product bearing a 3-bromoaryl group can be subjected to Pd-catalyzed Suzuki coupling with boronic acid in high yield.
Collapse
Affiliation(s)
- Manmath Mishra
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Pinaki Bhusan De
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Sourav Pradhan
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | | |
Collapse
|
235
|
Liu H, Moku B, Li F, Ran J, Han J, Long S, Zha G, Qin H. Stereoselective Construction of Nitrile‐Substituted Cyclopropanes from 2‐Substituted Ethenesulfonyl Fluorides
via
Carbon‐Sulfur Bond Cleavage. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900635] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hao Liu
- Key Laboratory for Green Chemical Process of Ministry of Education; Hubei Key Laboratory of Novel Reactor and Green Chemical Technology; Hubei Engineering Research Center for Advanced Fine Chemicals; School of Chemical Engineering and PharmacyWuhan Institute of Technology 206 1st Rd Optics Valley, East Lake New Technology Development District Wuhan 430205 People's Republic of China
| | - Balakrishna Moku
- School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology 205 Luoshi Road Wuhan 430070 People's Republic of China
| | - Fei Li
- School of EngineeringChina Pharmaceutical University Nanjing 210009 People's Republic of China
| | - Jiabing Ran
- Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 People's Republic of China
| | - Jinsong Han
- School of EngineeringChina Pharmaceutical University Nanjing 210009 People's Republic of China
| | - Sihui Long
- Key Laboratory for Green Chemical Process of Ministry of Education; Hubei Key Laboratory of Novel Reactor and Green Chemical Technology; Hubei Engineering Research Center for Advanced Fine Chemicals; School of Chemical Engineering and PharmacyWuhan Institute of Technology 206 1st Rd Optics Valley, East Lake New Technology Development District Wuhan 430205 People's Republic of China
| | - Gao‐Feng Zha
- Key Laboratory for Green Chemical Process of Ministry of Education; Hubei Key Laboratory of Novel Reactor and Green Chemical Technology; Hubei Engineering Research Center for Advanced Fine Chemicals; School of Chemical Engineering and PharmacyWuhan Institute of Technology 206 1st Rd Optics Valley, East Lake New Technology Development District Wuhan 430205 People's Republic of China
- School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology 205 Luoshi Road Wuhan 430070 People's Republic of China
| | - Hua‐Li Qin
- School of Chemistry, Chemical Engineering and Life ScienceWuhan University of Technology 205 Luoshi Road Wuhan 430070 People's Republic of China
| |
Collapse
|
236
|
Pandit RP, Kim ST, Ryu DH. Asymmetric Synthesis of Enantioenriched 2‐Aryl‐2,3‐Dihydrobenzofurans by a Lewis Acid Catalyzed Cyclopropanation/Intramolecular Rearrangement Sequence. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906954] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Seung Tae Kim
- Department of ChemistrySungkyunkwan University 300, Cheoncheon, Jangan Suwon 16419 Korea
| | - Do Hyun Ryu
- Department of ChemistrySungkyunkwan University 300, Cheoncheon, Jangan Suwon 16419 Korea
| |
Collapse
|
237
|
Pandit RP, Kim ST, Ryu DH. Asymmetric Synthesis of Enantioenriched 2-Aryl-2,3-Dihydrobenzofurans by a Lewis Acid Catalyzed Cyclopropanation/Intramolecular Rearrangement Sequence. Angew Chem Int Ed Engl 2019; 58:13427-13432. [PMID: 31309680 DOI: 10.1002/anie.201906954] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Indexed: 12/14/2022]
Abstract
A cyclopropanation/intramolecular rearrangement initiated by the Michael addition of in situ generated ortho-quinone methides (o-QMs) has been developed for the enantioselective synthesis of 2-aryl-2,3-dihydrobenzofurans containing two consecutive stereogenic centers, including a quaternary carbon atom. In the presence of a chiral oxazaborolidinium ion catalyst, the reaction proceeded in excellent yields (up to 95 %) with excellent stereoselectivity (up to >99 ee, up to >20:1 d.r.).
Collapse
Affiliation(s)
- Rameshwar Prasad Pandit
- Department of Chemistry, Sungkyunkwan University, 300, Cheoncheon, Jangan, Suwon, 16419, Korea
| | - Seung Tae Kim
- Department of Chemistry, Sungkyunkwan University, 300, Cheoncheon, Jangan, Suwon, 16419, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, 300, Cheoncheon, Jangan, Suwon, 16419, Korea
| |
Collapse
|
238
|
Su Z, Xie Z, Wang S, Luo N, Wang C. Direct synthesis of highly functionalized furans from donor-acceptor cyclopropanes via DBU-mediated ring expansion reactions. Org Biomol Chem 2019; 17:7342-7351. [PMID: 31334531 DOI: 10.1039/c9ob01308c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A DBU-mediated, unprecedented formal ring expansion reaction of 2-acyl-3-arylcyclopropane-1,1-dicarbonitriles for the synthesis of multisubstituted furan derivatives is reported. This transformation represents the regioselective ring-opening reaction of cyclopropane-1,1-dicarbonitriles and annulation using an intramolecular addition cascade reaction protocol for the synthesis of fully substituted furans includes use of readily available starting materials, mild reaction conditions, and it is transition-metal catalyst free, has good functional tolerance, and broad substrate scope.
Collapse
Affiliation(s)
- Zhenjie Su
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, PR China.
| | | | | | | | | |
Collapse
|
239
|
Kreft A, Ehlers S, Jones PG, Werz DB. Ring-Opening Reactions of Donor-Acceptor Cyclobutanes with Electron-Rich Arenes, Thiols, and Selenols. Org Lett 2019; 21:6315-6319. [PMID: 31380647 DOI: 10.1021/acs.orglett.9b02197] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Donor-acceptor (D-A) cyclobutanes with two geminal ester groups as acceptors are reacted with electron-rich arenes as nucleophiles to afford ring-opened products. AlCl3 mediates this Friedel-Crafts-type reaction. A variety of donors and electron-rich arenes are used. Nucleophilic thiols and selenols also trigger this ring-opening reaction. Furthermore, a comparison of various physical parameters has been carried out for several D-A cyclobutanes.
Collapse
|
240
|
Luo W, Sun Z, Fernando EHN, Nesterov VN, Cundari TR, Wang H. Asymmetric Ring-Opening of Donor–Acceptor Cyclopropanes with Primary Arylamines Catalyzed by a Chiral Heterobimetallic Catalyst. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02523] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Weiwei Luo
- Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - Zhicheng Sun
- Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - E. H. Nisala Fernando
- Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - Vladimir N. Nesterov
- Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - Thomas R. Cundari
- Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - Hong Wang
- Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| |
Collapse
|
241
|
Lücht A, Sobottka S, Patalag LJ, Jones PG, Reissig HU, Sarkar B, Werz DB. New Dyes Based on Extended Fulvene Motifs: Synthesis through Redox Reactions of Naphthoquinones with Donor-Acceptor Cyclopropanes and Their Spectroelectrochemical Behavior. Chemistry 2019; 25:10359-10365. [PMID: 31106926 DOI: 10.1002/chem.201900764] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/16/2019] [Indexed: 01/16/2023]
Abstract
Novel dyes based on extended fulvene motifs are reported. The carbon skeleton was generated by a catalyzed addition of donor-acceptor cyclopropanes to naphthoquinone. The hydroxy group at the central ring of the tricyclic fulvene motif was converted into the triflate, which reacted efficiently with a wide range of nucleophiles, resulting in substitution and thereby providing new derivatives. The synthetic versatility allowed us to investigate the absorption, electrochemical, and UV/Vis-NIR spectroelectrochemical properties of these dyes as a function of the substituents. The dyes were shown to participate in reductive electrochemistry, the reversibility of which can be improved by appropriate selection of the substituents. Additionally, first signs of NIR electrochromism are presented, opening new avenues for the future investigations of such dyes.
Collapse
Affiliation(s)
- Alexander Lücht
- Technische Universität Braunschweig, Institut für Organische Chemie, Hagenring 30, 38106, Braunschweig, Germany
| | - Sebastian Sobottka
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
| | - Lukas J Patalag
- Technische Universität Braunschweig, Institut für Organische Chemie, Hagenring 30, 38106, Braunschweig, Germany
| | - Peter G Jones
- Technische Universität Braunschweig, Institut für Anorganische und Analytische Chemie, Hagenring 30, 38106, Braunschweig, Germany
| | - Hans-Ulrich Reissig
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195, Berlin, Germany
| | - Daniel B Werz
- Technische Universität Braunschweig, Institut für Organische Chemie, Hagenring 30, 38106, Braunschweig, Germany
| |
Collapse
|
242
|
Zhang J, Hazra CK, Park S, Chang S. Metal‐Free Carbocyclization of Homoallylic Silyl Ethers Leading to Cyclopropanes and Cyclobutanes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jianbo Zhang
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| | - Chinmoy Kumar Hazra
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| | - Sehoon Park
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon FunctionalizationsInstitute for Basic Science (IBS) Daejeon 34141 South Korea
- Department of ChemistryKorea Advanced Institute of Science & Technology (KAIST) Daejeon 34141 South Korea
| |
Collapse
|
243
|
Denisov DA, Borisov DD, Potapov KV, Novikov RA, Tomilov YV. 4-Phenylspiro[2.2]pentane-1,1-dicarboxylate: synthesis and reactions with EtAlCl2 and 4,5-diazaspiro[2.4]hept-4-ene derivative. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
244
|
Ketan Das B, Pradhan S, Punniyamurthy T. Stereospecific assembly of tetrahydroquinolines via tandem ring-opening/oxidative cyclization of donor-acceptor cyclopropanes with N-alkyl anilines. Chem Commun (Camb) 2019; 55:8083-8086. [PMID: 31231737 DOI: 10.1039/c9cc04042k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An aerobic copper-catalyzed tandem reaction of N-alkyl anilines with donor-acceptor cyclopropanes is presented for the construction of tetrahydroquinolines via a sequential stereospecific ring opening and oxidative cyclization. The catalyst plays a dual role as a Lewis acid as well as being a redox catalyst. The use of air as an oxidant and the broad substrate scope are the important practical features.
Collapse
Affiliation(s)
- Bijay Ketan Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Sourav Pradhan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | | |
Collapse
|
245
|
Chen C, Feng S, Chan KS. Rhodium Porphyrin Catalyzed Regioselective Transfer Hydrogenolysis of C–C σ-Bonds in Cyclopropanes with iPrOH. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00290] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chen Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Shiyu Feng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| |
Collapse
|
246
|
Chagarovskiy AO, Kuznetsov VV, Ivanova OA, Goloveshkin AS, Levina II, Makhova NN, Trushkov IV. Synthesis of 1-Substituted Pyrazolines by Reaction of Donor-Acceptor Cyclopropanes with 1,5-Diazabicyclo[3.1.0]hexanes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900579] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Alexey O. Chagarovskiy
- Oncology and Immunology; Dmitry Rogachev National Research Center of Pediatric Hematology; 117997 Russian Federation
- N. D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences; Leninsky pr. 47 119991 Moscow Russian Federation
| | - Vladimir V. Kuznetsov
- N. D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences; Leninsky pr. 47 119991 Moscow Russian Federation
| | - Olga A. Ivanova
- N. D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences; Leninsky pr. 47 119991 Moscow Russian Federation
- Department of Chemistry; M. V. Lomonosov Moscow State University; Leninskie Gory 1-3 119991 Moscow Russian Federation
| | - Alexander S. Goloveshkin
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilova 28 119991 Moscow Russian Federation
| | - Irina I. Levina
- N. M. Emanuel Institute of Biochemical Physics Russian Academy of Sciences; Kosygina 4 119334 Moscow Russian Federation
| | - Nina N. Makhova
- N. D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences; Leninsky pr. 47 119991 Moscow Russian Federation
| | - Igor V. Trushkov
- Oncology and Immunology; Dmitry Rogachev National Research Center of Pediatric Hematology; 117997 Russian Federation
- N. D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences; Leninsky pr. 47 119991 Moscow Russian Federation
| |
Collapse
|
247
|
Okabe A, Harada S, Takeda T, Nishida A. One-Pot Synthesis of Cycloocta[b
]indole Through Formal [5+3] Cycloaddition Using Donor-Acceptor Cyclopropanes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900610] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Akito Okabe
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Shinji Harada
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33 Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| | - Takuya Takeda
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Atsushi Nishida
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1 Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33 Yayoi-cho, Inage-ku 263-8522 Chiba Japan
| |
Collapse
|
248
|
Wang S, Luo N, Li Y, Wang C. DBU-Mediated Cyclization of Acylcyclopropanecarboxylates with Amidines: Access to Polysubstituted Pyrimidines. Org Lett 2019; 21:4544-4548. [PMID: 31184171 DOI: 10.1021/acs.orglett.9b01436] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
DBU-mediated cyclization of 2-acyl-1-cyanocyclopropanecarboxylates with amidines for the synthesis of multisubstituted pyrimidine derivatives is described. This reaction gives a practical method for producing a diverse set of pyrimidines, having simple experimentation, readily available starting materials, a wide substrate scope, and very good yields.
Collapse
Affiliation(s)
- Shan Wang
- School of Chemistry and Chemical Engineering , Yangzhou University , 180 Siwangting Street , Yangzhou 225002 , P. R. China
| | - Naili Luo
- School of Chemistry and Chemical Engineering , Yangzhou University , 180 Siwangting Street , Yangzhou 225002 , P. R. China
| | - Yan Li
- School of Pharmacy , Taizhou Polytechnic College , Taizhou 225300 , P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering , Yangzhou University , 180 Siwangting Street , Yangzhou 225002 , P. R. China
| |
Collapse
|
249
|
Nambu H, Onuki Y, Ono N, Tsuge K, Yakura T. Ring-opening cyclization of spirocyclopropanes with stabilized sulfonium ylides for the construction of a chromane skeleton. Chem Commun (Camb) 2019; 55:6539-6542. [PMID: 31106310 DOI: 10.1039/c9cc03023a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Regioselective ring-opening cyclization of cyclohexane-1,3-dione-2-spirocyclopropanes with stabilized sulfonium ylides provided 2,3-trans-disubstituted 2,3,4,6,7,8-hexahydro-5H-1-benzopyran-5-ones in high yields without the formation of any isomers. The obtained product was readily converted into highly substituted chromane.
Collapse
Affiliation(s)
- Hisanori Nambu
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| | - Yuta Onuki
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| | - Naoki Ono
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| | - Kiyoshi Tsuge
- Graduate School of Science and Engineering, University of Toyama, Gofuku, Toyama 930-8555, Japan
| | - Takayuki Yakura
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama 930-0194, Japan.
| |
Collapse
|
250
|
Unravelling the Mechanism and Selectivity of the NHC‐catalyzed Three‐Membered Ring‐Opening/Fluorination of Epoxy Enals: A DFT Study. ChemCatChem 2019. [DOI: 10.1002/cctc.201900424] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|