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Abstract
Starting from (R)-phenylglycinol-derived tricyclic lactam 1, the enantioselective synthesis of (-)-cylindricine H is reported. From the stereochemical standpoint, the key steps are the stereoselective generation of the quaternary C10 stereocenter, the stereoselective introduction of the C4 acetoxy and C2 butyl substituents taking advantage of the lactam carbonyl functionality, and the assembly of the pyrrolidine ring with the required functionalized one-carbon chain at C13 by intramolecular opening of an epoxide.
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2
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Zhang C, Hu W, Morken JP. α-Boryl Organometallic Reagents in Catalytic Asymmetric Synthesis. ACS Catal 2021; 11:10660-10680. [PMID: 35591862 DOI: 10.1021/acscatal.1c02496] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent years have witnessed an increase in the popularity of α-boryl organometallic reagents as versatile nucleophiles in asymmetric synthesis. These compounds have been adopted in chemo- and stereoselective coupling reactions with a number of different electrophiles. The resulting enantioenriched boronic esters can be applied in stereospecific carbon-carbon or carbon-heteroatom bond construction reactions, enabling a two-step strategy for the construction of complex structures with high efficiency and functional group compatibility. Due to these reasons, tremendous effort has been devoted to the preparation of enantiomerically enriched α-boryl organometallic reagents and to the development of stereoselective reactions of related racemic or prochiral materials. In this review, we describe the enantio- or diastereoselective reactions that involve α-boryl organometallic reagents as starting materials or products and we showcase their synthetic utility.
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Affiliation(s)
- Chenlong Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Weipeng Hu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - James P. Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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3
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4
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Affiliation(s)
- Hua Wu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN; BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN; BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN; BCH 5304 1015 Lausanne Switzerland
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5
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Hovenkotter K, Braunstein H, Langevin S, Beng TK. Expedient and modular access to 2-azabicyclic architectures by iron-catalyzed dehydrative coupling of alcohol-bearing allylic lactams. Org Biomol Chem 2017; 15:1217-1221. [DOI: 10.1039/c6ob02652d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high-yielding, cost-effective, modular and environmentally benign approach to [5,5]- or [6,5]-2-azabicyclic architectures bearing vicinal stereocenters, by Fe-catalyzed dehydrative coupling of readily affordable alcohol-bearing allylic lactams is presented.
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Affiliation(s)
| | | | - Spencer Langevin
- Department of Chemistry
- Central Washington University
- Ellensburg
- USA
| | - Timothy K. Beng
- Department of Chemistry
- Central Washington University
- Ellensburg
- USA
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6
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An Q, Liu D, Shen J, Liu Y, Zhang W. The Construction of Chiral Fused Azabicycles Using a Pd-Catalyzed Allylic Substitution Cascade and Asymmetric Desymmetrization Strategy. Org Lett 2016; 19:238-241. [DOI: 10.1021/acs.orglett.6b03529] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qianjin An
- School
of Pharmacy and ‡School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Delong Liu
- School
of Pharmacy and ‡School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jiefeng Shen
- School
of Pharmacy and ‡School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yangang Liu
- School
of Pharmacy and ‡School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- School
of Pharmacy and ‡School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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7
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Parra C, Bosch C, Gómez-Bengoa E, Bonjoch J, Bradshaw B. Asymmetric Synthesis of Octahydroindoles via a Domino Robinson Annulation/5-Endo Intramolecular Aza-Michael Reaction. J Org Chem 2016; 81:10172-10179. [DOI: 10.1021/acs.joc.6b01568] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Claudio Parra
- Laboratori
de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av Joan XXIII s/n, 08028 Barcelona, Spain
| | - Caroline Bosch
- Laboratori
de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av Joan XXIII s/n, 08028 Barcelona, Spain
| | - Enrique Gómez-Bengoa
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018 San Sebastián, Spain
| | - Josep Bonjoch
- Laboratori
de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av Joan XXIII s/n, 08028 Barcelona, Spain
| | - Ben Bradshaw
- Laboratori
de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av Joan XXIII s/n, 08028 Barcelona, Spain
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8
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Kong D, Li M, Zi G, Hou G, He Y. Enantioselective Hydrogenation of Diarylmethanimines for Synthesis of Chiral Diarylmethylamines. J Org Chem 2016; 81:6640-8. [DOI: 10.1021/acs.joc.6b01273] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Duanyang Kong
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Meina Li
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yong He
- Key Laboratory of Radiopharmaceuticals,
College of Chemistry, Beijing Normal University, Beijing 100875, China
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9
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Zhan M, Li RZ, Mou ZD, Cao CG, Liu J, Chen YW, Niu D. Silver-Assisted, Iridium-Catalyzed Allylation of Bis[(pinacolato)boryl]methane Allows the Synthesis of Enantioenriched Homoallylic Organoboronic Esters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00719] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Miao Zhan
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Ren-Zhe Li
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Ze-Dong Mou
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Chao-Guo Cao
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Jie Liu
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Yuan-Wei Chen
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
| | - Dawen Niu
- Department of Emergency,
State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu 610041, China
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10
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Koszelewski D, Brodzka A, Żądło A, Paprocki D, Trzepizur D, Zysk M, Ostaszewski R. Dynamic Kinetic Resolution of 3-Aryl-4-pentenoic Acids. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00271] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dominik Koszelewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Anna Brodzka
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Anna Żądło
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Daniel Paprocki
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Damian Trzepizur
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Małgorzata Zysk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Ryszard Ostaszewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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11
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Goodman CG, Johnson JS. Asymmetric Synthesis of β-Amino Amides by Catalytic Enantioconvergent 2-Aza-Cope Rearrangement. J Am Chem Soc 2015; 137:14574-7. [PMID: 26561873 DOI: 10.1021/jacs.5b09593] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Dynamic kinetic resolutions of α-stereogenic-β-formyl amides in asymmetric 2-aza-Cope rearrangements are described. Chiral phosphoric acids catalyze this rare example of a non-hydrogenative DKR of a β-oxo acid derivative. The [3,3]-rearrangement occurs with high diastereo- and enantiocontrol, forming β-imino amides that can be deprotected to the primary β-amino amide or reduced to the corresponding diamine.
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Affiliation(s)
- C Guy Goodman
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
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12
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Shi S, Szostak M. Aminoketyl Radicals in Organic Synthesis: Stereoselective Cyclization of Five- and Six-Membered Cyclic Imides to 2-Azabicycles Using SmI2–H2O. Org Lett 2015; 17:5144-7. [DOI: 10.1021/acs.orglett.5b02732] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shicheng Shi
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department
of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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