|
1
|
Rakumitsu K, Sakamoto J, Ishikawa H. Total Syntheses of (-)-Secologanin, (-)-5-Carboxystrictosidine, and (-)-Rubenine. Chemistry 2019; 25:8996-9000. [PMID: 31069870 DOI: 10.1002/chem.201902073] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Indexed: 11/09/2022]
Abstract
The first enantioselective total syntheses of (-)-secologanin (1), (-)-5-carboxystrictosidine (2), and (-)-rubenine (3) were accomplished in 10, 9, and 14 steps, respectively. The key transformation in the synthesis of 1 was a sequential anti-selective organocatalytic Michael reaction/Fukuyama reduction/spontaneous cyclization to form an optically active dihydropyran ring. In addition, the secologanin tetraacetate (16), which is a potential key intermediate for the bioinspired divergent syntheses of monoterpenoid indole alkaloids, was prepared in gram-scale in seven steps. The total syntheses of 2 and 3, which are classified as glycosylated monoterpenoid indole alkaloids, were achieved through bioinspired transformations such as a diastereoselective Pictet-Spengler reaction, a site- and stereoselective epoxidation, and a site-selective epoxide ring-opening followed by a lactonization reaction.
Collapse
Affiliation(s)
- Kenta Rakumitsu
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
| | - Jukiya Sakamoto
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
| | - Hayato Ishikawa
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan.,Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1, Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
| |
Collapse
|
|
2
|
Yu L, Yang Z, Peng J, Li P. Substrate-Controlled Synthesis of Functionalized Cyclohexanes with Four Stereocenters by Organocatalytic Asymmetric Domino Reactions Between γ-Nitro Ketone and Enone. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501303] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
3
|
Umemiya S, Hayashi Y. Asymmetric Formal [3+2] Cycloaddition Reaction of Succinaldehyde and Nitroalkene Catalyzed by Diphenylprolinol Silyl Ether. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500623] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
|
4
|
Kumar I, Ramaraju P, Mir NA, Singh A. Linear dialdehydes as promising substrates for aminocatalyzed transformations. Org Biomol Chem 2015; 13:1280-93. [DOI: 10.1039/c4ob01805b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Linear dialdehydes: This article summarizes the recent utilization of linear dialdehydes as appropriate substrates for amine catalyzed cascade/domino transformations.
Collapse
Affiliation(s)
- Indresh Kumar
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani
- India
| | - Panduga Ramaraju
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani
- India
| | - Nisar A. Mir
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani
- India
| | - Anoop Singh
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani
- India
| |
Collapse
|
|
5
|
Anwar S, Li SM, Chen K. Organocatalytic Synthesis of Substituted Spirocyclohexane Carbaldehydes via [4 + 2] Annulation Strategy between 2-Arylideneindane-1,3-diones and Glutaraldehyde. Org Lett 2014; 16:2993-5. [DOI: 10.1021/ol501160k] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Shaik Anwar
- Department
of Chemistry, National Taiwan Normal University, Taipei, Taiwan 116, ROC
- Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research-VFSTR (Vignan University), Vadlamudi 522 213 Guntur, Andhra Pradesh, India
| | - Shao Ming Li
- Department
of Chemistry, National Taiwan Normal University, Taipei, Taiwan 116, ROC
| | - Kwunmin Chen
- Department
of Chemistry, National Taiwan Normal University, Taipei, Taiwan 116, ROC
| |
Collapse
|
|
6
|
Bi B, Ding Y, Lou Q, Hu W, Chan AS, Song H, Zhao J. Organocatalytic domino reactions: synthesis of densely functionalized cyclohexene derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
|
7
|
|
|
8
|
Volla CMR, Atodiresei I, Rueping M. Catalytic C-C bond-forming multi-component cascade or domino reactions: pushing the boundaries of complexity in asymmetric organocatalysis. Chem Rev 2013; 114:2390-431. [PMID: 24304297 DOI: 10.1021/cr400215u] [Citation(s) in RCA: 875] [Impact Index Per Article: 79.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chandra M R Volla
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | | | | |
Collapse
|
|
9
|
Wang S, Zhang Y, Dong G, Wu S, Zhu S, Miao Z, Yao J, Li H, Li J, Zhang W, Sheng C, Wang W. Asymmetric Synthesis of Chiral Dihydrothiopyrans via an Organocatalytic Enantioselective Formal Thio [3 + 3] Cycloaddition Reaction with Binucleophilic Bisketone Thioethers. Org Lett 2013; 15:5570-3. [DOI: 10.1021/ol4027705] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shengzheng Wang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yongqiang Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Guoqiang Dong
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Shanchao Wu
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Shiping Zhu
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Zhenyuan Miao
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jianzhong Yao
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Hao Li
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jian Li
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Wannian Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Chunquan Sheng
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Wei Wang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P. R. China, Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States, and School of Pharmacy, East China University of Science and Technology, Shanghai 200237, P. R. China
| |
Collapse
|
|
10
|
He Y, Kang TR, Liu QZ, Chen LM, Tu YL, Liu YJ, Chen TB, Wang ZQ, Liu J, Xie YM, Yang JL, He L. One-Pot Synthesis of Optically Enriched 2-Piperidinones from Aliphatic Aldehydes and Cyanoacrylamides. Org Lett 2013; 15:4054-7. [PMID: 23927000 DOI: 10.1021/ol401951g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ying He
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tai-Ran Kang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Quan-Zhong Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lian-Mei Chen
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi-Lian Tu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ya-Jun Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tang-Bin Chen
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhi-Qiang Wang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jie Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yong-Mei Xie
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jin-Liang Yang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Long He
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| |
Collapse
|
|
11
|
Zeng X. Recent Advances in Catalytic Sequential Reactions Involving Hydroelement Addition to Carbon–Carbon Multiple Bonds. Chem Rev 2013; 113:6864-900. [DOI: 10.1021/cr400082n] [Citation(s) in RCA: 374] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xiaoming Zeng
- Center for
Organic Chemistry, Frontier Institute of
Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi, 710054, P. R. China
| |
Collapse
|
|
12
|
Ghosh AK, Zhou B. Enantioselective Synthesis of Spiro[cyclohexane-1,3'-indolin]-2'-ones Containing Multiple Stereocenters via Organocatalytic Michael/Aldol Cascade Reactions. Tetrahedron Lett 2013; 54:2311-2314. [PMID: 25705059 DOI: 10.1016/j.tetlet.2013.02.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Organocatalytic reactions of 3-olefinic oxindoles and pentane-1,5-dial were investigated to provide access to substituted spirocyclohexane oxindoles via Michael/Aldol cascade reactions. Of particular interest, we have examined the stereochemical outcome of electron withdrawing and electron-donating groups on the oxindole ring nitrogen. Interestingly, we have observed that the N-protecting group on the oxindole has critical effect on aldol ring closure leading to ultimate stereochemical outcome of the hydroxyl center. The overall process is quite efficient and afforded products with multiple stereocenters in high yields and excellent enantioselectivities (>99% ee).
Collapse
Affiliation(s)
- Arun K Ghosh
- Departments of Chemistry and Medicinal Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Bing Zhou
- Departments of Chemistry and Medicinal Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| |
Collapse
|
|
13
|
Breistein P, Johansson J, Ibrahem I, Lin S, Deiana L, Sun J, Cordova A. One-Step Catalytic Enantioselective α-Quaternary 5-Hydroxyproline Synthesis: An Asymmetric Entry to Highly Functionalized α-Quaternary Proline Derivatives. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100911] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
14
|
|
|
15
|
Huang XF, Liu ZM, Geng ZC, Zhang SY, Wang Y, Wang XW. Enantioselective construction of multifunctionalized spirocyclohexaneoxindoles through organocatalytic Michael–Aldol cyclization of isatin derived alkenes with linear dialdehydes. Org Biomol Chem 2012; 10:8794-9. [DOI: 10.1039/c2ob26205c] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
|
16
|
Wong CT. Diastereoselectivity of the α,α-diphenylprolinol trimethylsilyl ether-catalyzed two-component domino reactions: toward cyclohexanes with six stereogenic centers. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
|
17
|
Moyano A, Rios R. Asymmetric organocatalytic cyclization and cycloaddition reactions. Chem Rev 2011; 111:4703-832. [PMID: 21615119 DOI: 10.1021/cr100348t] [Citation(s) in RCA: 712] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Albert Moyano
- Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, C. Martí i Franquès 1-11, 08028-Barcelona, Catalonia, Spain.
| | | |
Collapse
|
|
18
|
Fallan C, Quigley PF, Lam HW. Ytterbium-catalyzed conjugate allylation of alkylidene malonates. J Org Chem 2011; 76:4112-8. [PMID: 21524084 DOI: 10.1021/jo200268e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alkylidene malonates undergo efficient conjugate allylation upon treatment with allylstannanes or allylsilanes under the action of ytterbium catalysis.
Collapse
Affiliation(s)
- Charlene Fallan
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, West Mains Road, Edinburgh, EH9 3JJ, United Kingdom
| | | | | |
Collapse
|
|
19
|
Hong BC, Kotame P, Liao JH. Enantioselective organocatalytic domino Michael–acetalization–Henry reactions of 2-hydroxynitrostyrene and aldehyde for the synthesis of tetrahydro-6H-benzo[c]chromenones. Org Biomol Chem 2011; 9:382-6. [DOI: 10.1039/c0ob00834f] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
|
20
|
Welle A, Petrignet J, Tinant B, Wouters J, Riant O. Copper-Catalysed Domino Silylative Aldol Reaction Leading to Stereocontrolled Chiral Quaternary Carbons. Chemistry 2010; 16:10980-3. [DOI: 10.1002/chem.201000907] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
|
21
|
Xu LW, Li L, Shi ZH. Asymmetric Synthesis with Silicon-Based Bulky Amino Organocatalysts. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900797] [Citation(s) in RCA: 203] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
|
22
|
Zhang W, Franzén J. Diverse Asymmetric Quinolizidine Synthesis: A Stereodivergent One-Pot Approach. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900686] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
23
|
McGarraugh PG, Brenner SE. A new organocatalyzed Michael-Michael cascade reaction generates highly substituted fused carbocycles. Org Lett 2010; 11:5654-7. [PMID: 19921792 DOI: 10.1021/ol9024293] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
While beta-ketoesters are useful Michael donors, they were previously ineffective in Michael-Michael cascade reactions using alpha,beta-unsaturated aldehydes in conjunction with diphenylprolinol silyl ether organocatalysts. However, through rational modification of substrates and manipulation of the catalytic cycle, we developed an efficient Michael-Michael cascade reaction using beta-ketoesters of type 9. In this transformation, highly substituted fused carbocycles are generated in a single step in up to 87% yield and 99% ee.
Collapse
Affiliation(s)
- Patrick G McGarraugh
- Department of Chemistry, Brooklyn College and the City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210, USA
| | | |
Collapse
|
|
24
|
A Highly Diastereoselective Tertiary Amine-Catalyzed Cascade Michael-Michael-Henry Reaction between Nitromethane, Activated Alkenes and α,β-Unsaturated Carbonyl Compounds. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900657] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|