51
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Liang XW, Zheng C, You SL. Dearomatization through Halofunctionalization Reactions. Chemistry 2016; 22:11918-33. [DOI: 10.1002/chem.201600885] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Xiao-Wei Liang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 P. R. China
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52
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Hashimoto T, Kato K, Yano R, Natori T, Miura H, Takeuchi R. Iridium-Catalyzed Synthesis of Acylpyridines by [2 + 2 + 2] Cycloaddition of Diynes with Acyl Cyanides. J Org Chem 2016; 81:5393-400. [DOI: 10.1021/acs.joc.6b00668] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Toru Hashimoto
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Kaoru Kato
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Reiko Yano
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Tomoki Natori
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Hiroki Miura
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Ryo Takeuchi
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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53
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Zeng XP, Cao ZY, Wang YH, Zhou F, Zhou J. Catalytic Enantioselective Desymmetrization Reactions to All-Carbon Quaternary Stereocenters. Chem Rev 2016; 116:7330-96. [DOI: 10.1021/acs.chemrev.6b00094] [Citation(s) in RCA: 468] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xing-Ping Zeng
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Zhong-Yan Cao
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Yu-Hui Wang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Feng Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Jian Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
- State
Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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54
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Pan H, Huang H, Liu W, Tian H, Shi Y. Phosphine Oxide-Sc(OTf)3 Catalyzed Highly Regio- and Enantioselective Bromoaminocyclization of (E)-Cinnamyl Tosylcarbamates. An Approach to a Class of Synthetically Versatile Functionalized Molecules. Org Lett 2016; 18:896-9. [PMID: 26894481 DOI: 10.1021/acs.orglett.5b03459] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A highly regio- and enantioselective bromoaminocyclization of (E)-cinnamyl tosylcarbamates catalyzed by a chiral phosphine oxide-Sc(OTf)3 complex is described. A wide variety of optically active aryl 5-bromo-1,3-oxazinan-2-ones can be obtained with high yield and enantioselectivity.
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Affiliation(s)
- Hongjie Pan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Hu Huang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Weigang Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Hua Tian
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Yian Shi
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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55
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Tahara YK, Obinata S, Kanyiva KS, Shibata T, Mándi A, Taniguchi T, Monde K. Enantioselective Synthesis of Aminoindan Carboxylic Acid Derivatives by the Catalytic Intramolecular [2+2+2] Cycloaddition of Amino-Acid-Tethered Triynes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501612] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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56
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Xue J, Zhang H, Tian T, Yin K, Liu D, Jiang X, Li Y, Jin X, Yao X. Organohalogenite-Catalyzed Spiroketalization: Enantioselective Synthesis of Bisbenzannulated Spiroketal Cores. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500390] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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57
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Kawato Y, Ono H, Kubota A, Nagao Y, Morita N, Egami H, Hamashima Y. Highly Enantioselective Bromocyclization of Allylic Amides with a P/P=O Double-Site Lewis Base Catalyst. Chemistry 2016; 22:2127-2133. [DOI: 10.1002/chem.201503153] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Indexed: 01/10/2023]
Affiliation(s)
- Yuji Kawato
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Hiromi Ono
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Akino Kubota
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Yoshihiro Nagao
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Naoki Morita
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Hiromichi Egami
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences; University of Shizuoka; 52-1 Yada, Suruga-ku Shizuoka 422-8526 Japan
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58
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Wong YC, Yeung YY. A convenient method for the synthesis of α-carboxylate ester bromolactones via bromolactonization of alkenoic diesters. Org Biomol Chem 2016; 14:3202-6. [DOI: 10.1039/c6ob00311g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A simple and efficient synthesis of α-ester bromolactones has been developed through the electrophilic bromocyclization of olefinic 1,3-diesters.
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Affiliation(s)
- Ying-Chieh Wong
- Department of Chemistry
- The Chinese University of Hong Kong
- Shatin, NT
- China
| | - Ying-Yeung Yeung
- Department of Chemistry
- The Chinese University of Hong Kong
- Shatin, NT
- China
- Department of Chemistry
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59
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Borissov A, Davies TQ, Ellis SR, Fleming TA, Richardson MSW, Dixon DJ. Organocatalytic enantioselective desymmetrisation. Chem Soc Rev 2016; 45:5474-5540. [DOI: 10.1039/c5cs00015g] [Citation(s) in RCA: 154] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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60
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Zhang YF, Yin SJ, Zhao M, Zhang JQ, Li HY, Wang XW. Dinuclear zinc-catalyzed desymmetric intramolecular aldolization: an enantioselective construction of spiro[cyclohexanone-oxindole] derivatives. RSC Adv 2016. [DOI: 10.1039/c6ra02296k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A bis-ProPhenol zinc complex-catalyzed asymmetric desymmetrizing intramolecular aldol or aldol condensation reaction is reported, which furnishes spiro[cyclohexanone-oxindole] derivatives in good yields with moderate to high enantioselectivities.
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Affiliation(s)
- Ya-Fei Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Shao-Jie Yin
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Min Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Hai-Yan Li
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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61
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Xia Z, Hu J, Shen Z, Wan X, Yao Q, Lai Y, Gao JM, Xie W. Enantioselective Bromo-oxycyclization of Silanol. Org Lett 2015; 18:80-3. [DOI: 10.1021/acs.orglett.5b03303] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zilei Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
- State
Key Laboratory of Natural Medicines, Center of Drug Discovery, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jiadong Hu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
- State
Key Laboratory of Natural Medicines, Center of Drug Discovery, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Zhigao Shen
- State
Key Laboratory of Natural Medicines, Center of Drug Discovery, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Xiaolong Wan
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Qizheng Yao
- State
Key Laboratory of Natural Medicines, Center of Drug Discovery, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Yisheng Lai
- State
Key Laboratory of Natural Medicines, Center of Drug Discovery, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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62
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Aida Y, Tooriyama S, Kimura Y, Hara H, Shibata Y, Tanaka K. Rhodium-Catalyzed [2+2+2] Cycloaddition-Aromatization of 1,6-Diynes with Cyclic Enol Ethers at Room Temperature. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501282] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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63
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Hashimoto T, Ishii S, Yano R, Miura H, Sakata K, Takeuchi R. Iridium-Catalyzed [2+2+2] Cycloaddition of α,ω-Diynes with Cyanamides. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500637] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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64
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Petersen KS. Nonenzymatic enantioselective synthesis of all-carbon quaternary centers through desymmetrization. Tetrahedron Lett 2015; 56:6523-6535. [PMID: 26834295 PMCID: PMC4730901 DOI: 10.1016/j.tetlet.2015.09.134] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The asymmetric desymmetrization of meso or prochiral compounds containing an all-carbon quaternary center is an attractive alternative to classical synthetic approaches aimed at the asymmetric formation of a new C-C bond. This review focuses on nonenzymatic desymmetrizations that utilize transition metal catalysts or organocatalysts to distinguish between enantiotopic groups to generate enantioenriched compounds containing all-carbon quaternary stereocenters.
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Affiliation(s)
- Kimberly S. Petersen
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27402, United States
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65
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Li Z, Shi Y. Chiral Phosphine Oxide-Sc(OTf)3 Complex Catalyzed Enantioselective Bromoaminocyclization of 2-Benzofuranylmethyl N-Tosylcarbamates. Approach to a Novel Class of Optically Active Spiro Compounds. Org Lett 2015; 17:5752-5. [PMID: 26571147 DOI: 10.1021/acs.orglett.5b02817] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient enantioselective bromoaminocyclization of 2-benzofuranylmethyl N-tosylcarbamates catalyzed by a chiral phosphine oxide-Sc(OTf)(3) complex is described. A wide variety of optically active spiro benzofuran oxazolidinones can be obtained with high enantioselectivities.
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Affiliation(s)
- Zequan Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Yian Shi
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,State Key Laboratory of Coordination Chemistry, Center for Multimolecular Organic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China.,Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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66
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Tripathi CB, Mukherjee S. Catalytic Enantioselective 1,4-Iodofunctionalizations of Conjugated Dienes. Org Lett 2015; 17:4424-7. [PMID: 26382149 DOI: 10.1021/acs.orglett.5b02026] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The first catalytic enantioselective 1,4-iodofunctionalizations of conjugated dienes have been developed. Starting from β,γ,δ,ε-unsaturated oximes and 4-Ns hydrazones, these N-iodosuccinimide-mediated reactions are catalyzed by newly modified tertiary aminothiourea derivatives and furnish Δ(2)-isoxazoline and Δ(2)-pyrazoline derivatives, respectively, containing an (E)-allyl iodide group at the quaternary stereogenic center generally in high yield and with excellent enantioselectivity (up to 98.5:1.5 er).
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Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science , Bangalore 560012, India
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67
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Shen Z, Pan X, Lai Y, Hu J, Wan X, Li X, Zhang H, Xie W. Chiral ion-pair organocatalyst promotes highly enantioselective 3- exo iodo-cycloetherification of allyl alcohols. Chem Sci 2015; 6:6986-6990. [PMID: 29861937 PMCID: PMC5947518 DOI: 10.1039/c5sc02485d] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 08/26/2015] [Indexed: 11/21/2022] Open
Abstract
By designing a novel chiral ion-pair organocatalyst composed of chiral phosphate and DABCO-derived quaternary ammonium, highly enantioselective 3-exo iodo-cycloetherification of allyl alcohols was achieved using NIS as a halogen source. Based on this reaction, one-pot asymmetric 3-exo iodo-cycloetherification/Wagner-Meerwein rearrangement of allyl alcohols en route to enantioenriched 2-iodomethyl-2-aryl cycloalkanones was subsequently developed. Due to the participation of adjacent iodine, the Wagner-Meerwein rearrangement of 2-iodomethyl-2-aryl epoxide proceeds with unusual retention of stereoconfiguration.
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Affiliation(s)
- Zhigao Shen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology , College of Science , Northwest A&F University , 22 Xinong Road , Yangling 712100 , China . .,State Key Laboratory of Natural Medicines , Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases , Center of Drug Discovery , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Xixian Pan
- Hubei Collaborative Innovation Center for Rare Metal Chemistry , Hubei Normal University , China
| | - Yisheng Lai
- State Key Laboratory of Natural Medicines , Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases , Center of Drug Discovery , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Jiadong Hu
- State Key Laboratory of Natural Medicines , Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases , Center of Drug Discovery , China Pharmaceutical University , 24 Tongjiaxiang , Nanjing 210009 , China
| | - Xiaolong Wan
- Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , China
| | - Xiaoge Li
- Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , China
| | - Hui Zhang
- School of Science & Laboratory for Microstructures , Instrumental Analysis and Research Center , Shanghai University , China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology , College of Science , Northwest A&F University , 22 Xinong Road , Yangling 712100 , China .
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68
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Soltanzadeh B, Jaganathan A, Staples RJ, Borhan B. Highly Stereoselective Intermolecular Haloetherification and Haloesterification of Allyl Amides. Angew Chem Int Ed Engl 2015; 54:9517-22. [PMID: 26110812 PMCID: PMC4874786 DOI: 10.1002/anie.201502341] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Indexed: 12/16/2022]
Abstract
An organocatalytic and highly regio-, diastereo-, and enantioselective intermolecular haloetherification and haloesterification reaction of allyl amides is reported. A variety of alkene substituents and substitution patterns are compatible with this chemistry. Notably, electronically unbiased alkene substrates exhibit exquisite regio- and diastereoselectivity for the title transformation. We also demonstrate that the same catalytic system can be used in both chlorination and bromination reactions of allyl amides with a variety of nucleophiles with little or no modification.
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Affiliation(s)
- Bardia Soltanzadeh
- Department of Chemistry, Michigan State University, E. Lansing, MI 48824 (USA)
| | - Arvind Jaganathan
- Engineering and Process Sciences, Core R&D, The Dow Chemical Company, Midland, MI 48674 (USA)
| | - Richard J Staples
- Department of Chemistry, Michigan State University, E. Lansing, MI 48824 (USA)
| | - Babak Borhan
- Department of Chemistry, Michigan State University, E. Lansing, MI 48824 (USA).
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69
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Liu W, Pan H, Tian H, Shi Y. Enantioselective 6-exo-Bromoaminocyclization of Homoallylic N-Tosylcarbamates Catalyzed by a Novel Monophosphine-Sc(OTf)3 Complex. Org Lett 2015; 17:3956-9. [PMID: 26186576 DOI: 10.1021/acs.orglett.5b01779] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A highly enantioselective 6-exo-bromoaminocyclization of (E)-homoallylic N-tosylcarbamates catalyzed by a novel monophosphine-Sc(OTf)3 complex is described, giving a wide variety of optically active oxazinanones with high enantioselectivities.
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Affiliation(s)
- Weigang Liu
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongjie Pan
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hua Tian
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yian Shi
- †Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,‡State Key Laboratory of Coordination Chemistry, Center for Multimolecular Organic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.,§Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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70
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Sakakura A, Ishihara K. Stereoselective Electrophilic Cyclization. CHEM REC 2015; 15:728-42. [DOI: 10.1002/tcr.201500005] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Akira Sakakura
- Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering; Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8603, (Japan) and Japan Science and Technology Agency (JST), CREST; Furo-cho, Chikusa Nagoya 464-8603 Japan
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71
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Yin Q, Wang SG, Liang XW, Gao DW, Zheng J, You SL. Organocatalytic asymmetric chlorinative dearomatization of naphthols. Chem Sci 2015; 6:4179-4183. [PMID: 29218183 PMCID: PMC5707459 DOI: 10.1039/c5sc00494b] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/25/2015] [Indexed: 01/08/2023] Open
Abstract
An organocatalytic asymmetric chlorinative dearomatization of naphthols was realized for the first time, providing chiral naphthalenones with a Cl-containing all-substituted stereocenter in excellent yields and enantioselectivity (up to 97% yield and 96% ee). The reaction features mild reaction conditions, good tolerance of diverse functional groups and simple reaction operation.
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Affiliation(s)
- Qin Yin
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China .
| | - Shou-Guo Wang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China .
| | - Xiao-Wei Liang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China .
| | - De-Wei Gao
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China .
| | - Jun Zheng
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China .
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China .
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72
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Soltanzadeh B, Jaganathan A, Staples RJ, Borhan B. Highly Stereoselective Intermolecular Haloetherification and Haloesterification of Allyl Amides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502341] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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73
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Zhu R, Buchwald SL. Versatile Enantioselective Synthesis of Functionalized Lactones via Copper-Catalyzed Radical Oxyfunctionalization of Alkenes. J Am Chem Soc 2015; 137:8069-77. [PMID: 26070105 PMCID: PMC4490856 DOI: 10.1021/jacs.5b04821] [Citation(s) in RCA: 226] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
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A versatile method for the rapid
synthesis of diverse enantiomerically
enriched lactones has been developed based on Cu-catalyzed enantioselective
radical oxyfunctionalization of alkenes. The scope of this strategy
encompasses a series of enantioselective difunctionalization reactions:
oxyazidation, oxysulfonylation, oxyarylation, diacyloxylation, and
oxyalkylation. These reactions provide straightforward access to a
wide range of useful chiral lactone building blocks containing tetrasubstituted
stereogenic centers, which are hard to access traditionally.
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Affiliation(s)
- Rong Zhu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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74
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Rösner C, Hennecke U. Homohalocyclization: Electrophilic Bromine-Induced Cyclizations of Cyclopropanes. Org Lett 2015; 17:3226-9. [PMID: 26101939 DOI: 10.1021/acs.orglett.5b01315] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient method for the halocyclization of cyclopropanes has been developed. The cyclopropanes undergo a 1,3-addition reaction to form homohalocyclization products compared to conventional alkene halocyclizations. The reaction can be induced by various electrophilic halogenating agents including 1,3-dibromo-5,5-dimethylhydantoin and N-iodosuccinimide. In cyclopropane derivatives with a preexisting stereocenter, excellent induced diastereoselectivities can be observed.
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Affiliation(s)
- Christian Rösner
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstr. 40, 48149 Münster, Germany
| | - Ulrich Hennecke
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstr. 40, 48149 Münster, Germany
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75
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Campbell ML, Rackley SA, Giambalvo LN, Whitehead DC. Vanadium (V) oxide mediated bromolactonization of alkenoic acids. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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76
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Qi J, Fan GT, Chen J, Sun MH, Dong YT, Zhou L. Catalytic enantioselective bromoamination of allylic alcohols. Chem Commun (Camb) 2015; 50:13841-4. [PMID: 25259372 DOI: 10.1039/c4cc05772d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An enantioselective bromoamination of allylic alcohols has been developed for the first time using a newly designed cinchona-derived thiourea as the catalyst and N,N-dibromo-4-nitrobenzenesulfonamide as a bromine and amine source.
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Affiliation(s)
- Juan Qi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China.
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77
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Huang H, Pan H, Cai Y, Liu M, Tian H, Shi Y. Enantioselective 6-endo bromoaminocyclization of 2,4-dienyl N-tosylcarbamates catalyzed by a chiral phosphine oxide-Sc(OTf)3 complex. A dramatic additive effect. Org Biomol Chem 2015; 13:3566-70. [PMID: 25686253 DOI: 10.1039/c5ob00001g] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An effective enantioselective 6-endo bromoaminocyclization of 2,4-dienyl N-tosylcarbamates catalyzed by a chiral phosphine oxide-Sc(OTf)3 complex is described. A wide variety of optically active 5-bromo-1,3-oxazinan-2-ones containing various functional groups can be obtained in 61-91% yields and 92-99% ees. An additive, such as NaCl, has been found to be crucial for the reaction process.
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Affiliation(s)
- Hu Huang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 10090, China
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78
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Li X, Peng S, Li L, Huang Y. Synthesis of tetrasubstituted 1-silyloxy-3-aminobutadienes and chemistry beyond Diels-Alder reactions. Nat Commun 2015; 6:6913. [PMID: 25898310 PMCID: PMC4411301 DOI: 10.1038/ncomms7913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 03/12/2015] [Indexed: 01/20/2023] Open
Abstract
Electron-rich dienes have revolutionized the synthesis of complex compounds since the discovery of the legendary Diels–Alder cycloaddition reaction. This highly efficient bond-forming process has served as a fundamental strategy to assemble many structurally formidable molecules. Amino silyloxy butadienes are arguably the most reactive diene species that are isolable and bottleable. Since the pioneering discovery by Rawal, 1-amino-3-silyloxybutadienes have been found to undergo cycloaddition reactions with unparalleled mildness, leading to significant advances in both asymmetric catalysis and total synthesis of biologically active natural products. In sharp contrast, this class of highly electron-rich conjugated olefins has not been studied in non-cycloaddition reactions. Here we report a simple synthesis of tetrasubstituted 1-silyloxy-3-aminobutadienes, a complementarily substituted Rawal's diene. This family of molecules is found to undergo a series of intriguing chemical transformations orthogonal to cycloaddition reactions. Structurally diverse polysubstituted ring architectures are established in one step from these dienes. Electron-rich dienes have been shown to have multiple uses in synthesis by means of cycloaddition reactions. Here, the authors report a series of non-cycloaddition-based reactions of these compounds, giving access to 4-, 5-, 6- and 7-membered ring systems.
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Affiliation(s)
- Xijian Li
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Siyu Peng
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Li Li
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
| | - Yong Huang
- Key Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Shenzhen 518055, China
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79
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Shemet A, Sarlah D, Carreira EM. Stereochemical studies of the opening of chloro vinyl epoxides: cyclic chloronium ions as intermediates. Org Lett 2015; 17:1878-81. [PMID: 25811099 DOI: 10.1021/acs.orglett.5b00558] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A systematic study of the opening of a collection of chlorinated vinyl epoxides is reported, which includes experiments that implicate both five- and four-membered chloronium ions as plausible intermediates in this type of epoxide opening reaction.
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Affiliation(s)
- Andrej Shemet
- Department of Chemistry and Applied Biosciences, Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - David Sarlah
- Department of Chemistry and Applied Biosciences, Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
| | - Erick M Carreira
- Department of Chemistry and Applied Biosciences, Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, CH-8093 Zürich, Switzerland
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80
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Kawato Y, Kubota A, Ono H, Egami H, Hamashima Y. Enantioselective bromocyclization of allylic amides catalyzed by BINAP derivatives. Org Lett 2015; 17:1244-7. [PMID: 25699577 DOI: 10.1021/acs.orglett.5b00220] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A highly enantioselective bromocyclization of allylic amides with N-bromosuccinimide (NBS) was developed with DTBM-BINAP as a catalyst, affording chiral oxazolines with a tetrasubstituted carbon center in high yield with up to 99% ee. By utilizing the bromo substituent as a handle, the obtained compounds were converted to synthetically useful chiral building blocks.
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Affiliation(s)
- Yuji Kawato
- School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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81
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Kashima K, Ishii M, Tanaka K. Synthesis of Pyridylphosphonates by Rhodium-Catalyzed [2+2+2] Cycloaddition of 1,6- and 1,7-Diynes with Diethyl Phosphorocyanidate. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403452] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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82
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Cui BD, You Y, Zhao JQ, Zuo J, Wu ZJ, Xu XY, Zhang XM, Yuan WC. 3-Pyrrolyl-oxindoles as efficient nucleophiles for organocatalytic asymmetric synthesis of structurally diverse 3,3′-disubstituted oxindole derivatives. Chem Commun (Camb) 2015; 51:757-60. [DOI: 10.1039/c4cc08364d] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An organocatalytic asymmetric reaction of 3-pyrrolyl-oxindoles to nitroalkenes was developed to afford a range of 3-pyrrolyl-3,3′-disubstituted oxindoles in excellent yields.
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Affiliation(s)
- Bao-Dong Cui
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Yong You
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Jian-Qiang Zhao
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Jian Zuo
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Zhi-Jun Wu
- Chengdu Institute of Biology
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiao-Ying Xu
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Xiao-Mei Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Wei-Cheng Yuan
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
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83
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Vinoth P, Vivekanand T, Suryavanshi PA, Menéndez JC, Sasai H, Sridharan V. Palladium(ii)-catalyzed intramolecular carboxypalladation–olefin insertion cascade: direct access to indeno[1,2-b]furan-2-ones. Org Biomol Chem 2015; 13:5175-81. [DOI: 10.1039/c5ob00458f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient intramolecular carboxypalladation–olefin insertion cascade was developed for the synthesis of indeno[1,2-b]furan-2-ones.
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Affiliation(s)
- Perumal Vinoth
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - Thavaraj Vivekanand
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - Padmakar A. Suryavanshi
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - J. Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Hiroaki Sasai
- The Institute of Scientific and Industrial Research (ISIR)
- Osaka University
- Ibaraki-shi
- Japan
| | - Vellaisamy Sridharan
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
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84
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He N, Huo Y, Liu J, Huang Y, Zhang S, Cai Q. Copper-Catalyzed Enantioselective Intramolecular Aryl C–N Coupling: Synthesis of Enantioenriched 2-Oxo-1,2,3,4-tetrahydroquinoline-3-carboxamides via an Asymmetric Desymmetrization Strategy. Org Lett 2014; 17:374-7. [DOI: 10.1021/ol5035386] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nian He
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
- Guangzhou
Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530, China
| | - Yanping Huo
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China
| | - Jianguang Liu
- Guangzhou
Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530, China
| | - Yusha Huang
- Guangzhou
Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530, China
- Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Shasha Zhang
- Guangzhou
Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530, China
| | - Qian Cai
- Guangzhou
Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530, China
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85
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Cheng YA, Yu WZ, Yeung YY. Recent advances in asymmetric intra- and intermolecular halofunctionalizations of alkenes. Org Biomol Chem 2014; 12:2333-43. [PMID: 24595745 DOI: 10.1039/c3ob42335b] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review seeks to provide coverage on recent advances in catalytic enantioselective halofunctionalization of alkenes. The aim is to give an overview of various reports, highlighting the new reaction types and strategies developed during the past two years. The scope and challenges of intra- and intermolecular reaction variants are discussed as well.
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Affiliation(s)
- Yi An Cheng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.
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86
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Sun C, He X, Wang W, Chu G, Zhang S, Chen D. Computational study on the mechanism of uncatalyzed and selenium-based catalyzed bromolactonization. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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87
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Murai K, Nakajima J, Nakamura A, Hyogo N, Fujioka H. Enantioselective, Desymmetrizing, Bromolactonization Reactions of Symmetric Olefinic Dicarboxylic Acids. Chem Asian J 2014; 9:3511-7. [DOI: 10.1002/asia.201402865] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Indexed: 12/21/2022]
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88
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Zhou F, Cheng GJ, Yang W, Long Y, Zhang S, Wu YD, Zhang X, Cai Q. Enantioselective Formation of Cyano-Bearing All-Carbon Quaternary Stereocenters: Desymmetrization by Copper-Catalyzed N-Arylation. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405575] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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89
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Zhou F, Cheng GJ, Yang W, Long Y, Zhang S, Wu YD, Zhang X, Cai Q. Enantioselective formation of cyano-bearing all-carbon quaternary stereocenters: desymmetrization by copper-catalyzed N-arylation. Angew Chem Int Ed Engl 2014; 53:9555-9. [PMID: 25045110 DOI: 10.1002/anie.201405575] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Indexed: 01/13/2023]
Abstract
The enantioselective construction of all-carbon quaternary stereocenters is one of the most challenging fields in asymmetric synthesis. An asymmetric desymmetrization strategy offers an indirect and efficient method for the formation of all-carbon stereocenters. An enantioselective formation of cyano-bearing all-carbon quaternary stereocenters in 1,2,3,4,-tetrahydroquinolines and 2,3,4,5-tetrahydro-1H-benzo[b]azepines by copper-catalyzed desymmetric N-arylation is demonstrated. The cyano group at the prochiral center plays a key role for the high enantioselectivity and works as an important functional group for further transformations. DFT studies provide a model which successfully accounts for the origin of enantioselectivity.
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Affiliation(s)
- Fengtao Zhou
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China); Current Address: Molecular Catalyst Research Center, Chubu University, Aichi, 487-8501 (Japan)
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90
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Li L, Su C, Liu X, Tian H, Shi Y. Catalytic asymmetric intermolecular bromoesterification of unfunctionalized olefins. Org Lett 2014; 16:3728-31. [PMID: 25002158 DOI: 10.1021/ol501542r] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An asymmetric intermolecular bromoesterification of unfunctionalized olefins catalyzed by (DHQD)(2)PHAL is described. Optically active bromoesters can be obtained with up to 92% ee.
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Affiliation(s)
- Lijun Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
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91
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Tripathi CB, Mukherjee S. Catalytic enantioselective iodoaminocyclization of hydrazones. Org Lett 2014; 16:3368-71. [PMID: 24905075 DOI: 10.1021/ol5013982] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The first catalytic enantioselective iodoaminocyclization of β,γ-unsaturated hydrazones has been developed with the help of a trans-1,2-diaminocyclohexane-derived bifunctional thiourea catalyst and allows for the direct access to Δ(2)-pyrazolines containing a quaternary stereogenic center in high yield with good enantioselectivity (up to 95% yield and 95:5 er).
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92
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Müller CH, Rösner C, Hennecke U. Enantioselective haloetherifications catalyzed by 1,1'-bi-2-naphthol (BINOL) phosphates: from symmetrical alkenediols to simple alkenols. Chem Asian J 2014; 9:2162-9. [PMID: 24840391 DOI: 10.1002/asia.201402229] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Indexed: 12/19/2022]
Abstract
Asymmetric haloetherifications can be conducted using 1,1'-bi-2-naphthol (BINOL) phosphates as catalyst. In combination with simple N-haloamides such as N-iodopyrrolidinone or N-bromosuccinimide, good enantioselectivities can be achieved. However, depending on the substrate, the choice of BINOL phosphate is important, and different catalysts show remarkably different selectivities.
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Affiliation(s)
- Christian H Müller
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Fachbereich Chemie und Pharmazie, Corrensstrasse 40, 48151 Münster (Germany), Fax: (+49) 0251-83-36523
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93
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Nakatsuji H, Sawamura Y, Sakakura A, Ishihara K. Cooperative activation with chiral nucleophilic catalysts and N-haloimides: enantioselective iodolactonization of 4-arylmethyl-4-pentenoic acids. Angew Chem Int Ed Engl 2014; 53:6974-7. [PMID: 24840957 DOI: 10.1002/anie.201400946] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/25/2014] [Indexed: 01/08/2023]
Abstract
Chiral triaryl phosphates promote the enantioselective iodolactonization of 4-substituted 4-pentenoic acids to give the corresponding iodolactones in high yields with high enantioselectivity. N-Chlorophthalimide (NCP) is employed as a Lewis acidic activator and oxidant of I2 for the present iodolactonization. In combination with 1.5 equivalents of NCP, only 0.5 equivalents of I2 are sufficient to generate the iodinating reagent.
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Affiliation(s)
- Hidefumi Nakatsuji
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603 (Japan) http://www.ishihara-lab.net
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94
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Nakatsuji H, Sawamura Y, Sakakura A, Ishihara K. Cooperative Activation with Chiral Nucleophilic Catalysts andN-Haloimides: Enantioselective Iodolactonization of 4-Arylmethyl-4-pentenoic Acids. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400946] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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95
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Yin Q, You SL. Asymmetric Chlorocyclization of Indole-3-yl-benzamides for the Construction of Fused Indolines. Org Lett 2014; 16:2426-9. [DOI: 10.1021/ol5007532] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Qin Yin
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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96
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Ke Z, Tan CK, Chen F, Yeung YY. Catalytic Asymmetric Bromoetherification and Desymmetrization of Olefinic 1,3-Diols with C2-Symmetric Sulfides. J Am Chem Soc 2014; 136:5627-30. [DOI: 10.1021/ja5029155] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zhihai Ke
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Chong Kiat Tan
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Feng Chen
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Ying-Yeung Yeung
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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97
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Tay DW, Leung GYC, Yeung YY. Desymmetrization of Diolefinic Diols by Enantioselective Amino-thiocarbamate-Catalyzed Bromoetherification: Synthesis of Chiral Spirocycles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310136] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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98
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Tay DW, Leung GYC, Yeung YY. Desymmetrization of diolefinic diols by enantioselective amino-thiocarbamate-catalyzed bromoetherification: synthesis of chiral spirocycles. Angew Chem Int Ed Engl 2014; 53:5161-4. [PMID: 24706539 DOI: 10.1002/anie.201310136] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 01/27/2014] [Indexed: 11/10/2022]
Abstract
A facile, efficient, and highly diastereo- and enantioselective bromoetherification of diolefinic diols has been developed using an amino-thiocarbamate catalyst. Further manipulations of the bromoether products enabled entry into a new class of spirocycles which are distinctively lacking in the literature.
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Affiliation(s)
- Daniel Weiliang Tay
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543 (Singapore) http://www.chemistry.nus.edu.sg/people/academic_staff/yeungyy.htm
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Zheng S, Schienebeck CM, Zhang W, Wang HY, Tang W. Cinchona Alkaloids as Organocatalysts in Enantioselective Halofunctionalization of Alkenes and Alkynes. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201400030] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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C3-Symmetric Cinchonine-Squaramide-Catalyzed Asymmetric Chlorolactonization of Styrene-Type Carboxylic Acids with 1,3-Dichloro-5,5-dimethylhydantoin: An Efficient Method to Chiral Isochroman-1-ones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300915] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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