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Yang W, Xu L, Chen Z, Zhang L, Miao M, Ren H. Ru-Catalyzed Synthesis of Dihydrofuroquinolines from Azido-cyclopropyl Ketones. Org Lett 2013; 15:1282-5. [DOI: 10.1021/ol400223d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Weijun Yang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, and Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Lijun Xu
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, and Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Zhengkai Chen
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, and Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Lili Zhang
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, and Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Maozhong Miao
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, and Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Hongjun Ren
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China, and Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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Fang Z, Fu C, Ma S. Controlled Reactions of 2,3-Allenoates with a 1,3-Diketone Catalyst Effect. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Wang F, Qu M, Chen F, Li L, Shi M. An unusual Me3SiI-promoted [4+2] annulation and reduction: an efficient approach to construct 4H-benzopyrans. Chem Commun (Camb) 2012; 48:437-9. [DOI: 10.1039/c1cc16028a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cérat P, Gritsch PJ, Goudreau SR, Charette AB. Synthesis of Enantioenriched Allenes from 1,1-Cyclopropanediesters. Org Lett 2010; 12:564-7. [DOI: 10.1021/ol902766f] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pascal Cérat
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Philipp J. Gritsch
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Sébastien R. Goudreau
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - André B. Charette
- Department of Chemistry, Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, Québec, Canada H3C 3J7
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6
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Lewis acid-mediated reactions of 1-cyclopropyl-2-arylethanone derivatives with diethyl 2-oxomalonate and ethyl 2-oxoacetate. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Liu LP, Hammond G. Reactions of Cationic Gold(I) with Allenoates: Synthesis of Stable Organogold(I) Complexes and Mechanistic Investigations on Gold-Catalyzed Cyclizations. Chem Asian J 2009; 4:1230-6. [DOI: 10.1002/asia.200900091] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Meng X, Huang Y, Zhao H, Xie P, Ma J, Chen R. PPh3-Catalyzed Domino Reaction: A Facile Method for the Synthesis of Chroman Derivatives. Org Lett 2009; 11:991-4. [DOI: 10.1021/ol802917d] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiangtai Meng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Hongxia Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Peizhong Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Jianze Ma
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Ruyu Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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Sc(OTf)3-catalyzed smooth tandem [3+2] cycloaddition/ring opening of donor–acceptor cyclopropane 1,1-diesters with enol silyl ethers. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.09.028] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Scott ME, Lautens M. Synthesis of Highly Functionalized Pyrrolidines via a Selective Iodide-Mediated Ring Expansion of Methylenecyclopropyl Amides. J Org Chem 2008; 73:8154-62. [DOI: 10.1021/jo802049u] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark E. Scott
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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11
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Zhu XQ, Liang H, Zhu Y, Cheng JP. Hydride Affinities of Cumulated, Isolated, and Conjugated Dienes in Acetonitrile. J Org Chem 2008; 73:8403-10. [DOI: 10.1021/jo801536m] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xiao-Qing Zhu
- Department of Chemistry, The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Hao Liang
- Department of Chemistry, The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Yan Zhu
- Department of Chemistry, The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- Department of Chemistry, The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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Affiliation(s)
- Xiang-Ying Tang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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Wang W, Xu B, Hammond GB. Synthesis of Functionalized α,α-Disubstituted β-Alkynyl Esters from Allenoates through an Alkynylenolate Intermediate. Org Lett 2008; 10:3713-6. [DOI: 10.1021/ol801287t] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weibo Wang
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292
| | - Bo Xu
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292
| | - Gerald B. Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292
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Lifchits O, Alberico D, Zakharian I, Charette AB. Nucleophilic Addition of Phenol Derivatives to Methyl 1-Nitrocyclopropanecarboxylates. J Org Chem 2008; 73:6838-40. [PMID: 18671432 DOI: 10.1021/jo8010705] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olga Lifchits
- Department of Chemistry, Université de Montréal, P. O. 6128, Station Downtown, Montréal, Quebec, Canada H3C 3J7
| | - Dino Alberico
- Department of Chemistry, Université de Montréal, P. O. 6128, Station Downtown, Montréal, Quebec, Canada H3C 3J7
| | - Irina Zakharian
- Department of Chemistry, Université de Montréal, P. O. 6128, Station Downtown, Montréal, Quebec, Canada H3C 3J7
| | - André B. Charette
- Department of Chemistry, Université de Montréal, P. O. 6128, Station Downtown, Montréal, Quebec, Canada H3C 3J7
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Liu LP, Xu B, Hammond GB. Michael Addition of Allenoates to Electron-Deficient Olefins: Facile Synthesis of 2-Alkynyl-Substituted Glutaric Acid Derivatives. Org Lett 2008; 10:3887-90. [DOI: 10.1021/ol801411b] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Le-Ping Liu
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292
| | - Bo Xu
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292
| | - Gerald B. Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292
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Shi M, Tang XY, Yang YH. Lewis acid-mediated reactions of 1-cyclopropyl-2-arylethanone derivatives with allenic ester, ethyl acetoacetate, and methyl acrylate. J Org Chem 2008; 73:5311-8. [PMID: 18570403 DOI: 10.1021/jo800608h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
TMSOTf-mediated reactions of 2-aryl-1-(1-phenylcyclopropyl)ethanones 1 with allenic esters afford a novel method for the synthesis of 6-methyl-3a,7-diaryl-3,3a-dihydro-2H-benzofuran-4-one derivatives 2 in moderate yields. In addition, we also found that TMSOTf-mediated reactions of 1-cyclopropyl-2-arylethanones with ethyl acetoacetate can provide the corresponding 2,3-dihydrobenzofuran-4-ol and dihydrofuro[2,3-h]chromen-2-one in moderate yields via a sequential reaction involving a nucleophilic ring-opening reaction of the cyclopropane by H2O, one intermolecular aldol type reaction and two intramolecular aldol type reactions, a cyclic transesterification, dehydration, and aromatization. Moreover, by using methyl acrylate to replace allenic ester, the corresponding 7-aryl-3,5,6,7-tetrahydro-2H-benzofuran-4-one and 5-aryl-3,5,6,7-tetrahydro-2 H-benzofuran-4-one can be formed in moderate to high yields in the presence of Bi(OTf)2Cl. Plausible reaction mechanisms have also been provided on the basis of control experiments.
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Affiliation(s)
- Min Shi
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China.
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