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Guan Y, Buivydas TA, Lalisse RF, Laybourn KB, Stern C, Richins M, Burns SM, Shelby A, Hadad CM, Mattson AE. Highly Enantioselective Catalytic Alkynylation of Quinolones: Substrate Scope, Mechanistic Studies, and Applications in the Syntheses of Chiral N-Heterocyclic Alkaloids and Diamines. ACS Catal 2023; 13:7661-7668. [PMID: 37288090 PMCID: PMC10243307 DOI: 10.1021/acscatal.3c01536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/21/2023] [Indexed: 06/09/2023]
Abstract
The alkynylation of 4-siloxyquinolinium triflates has been achieved under the influence of copper bis(oxazoline) catalysis. The identification of the optimal bis(oxazoline) ligand was informed through a computational approach that enabled the dihydroquinoline products to be produced with up to 96% enantiomeric excess. The conversions of the dihydroquinoline products to biologically relevant and diverse targets are reported.
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Affiliation(s)
- Yong Guan
- Department
of Chemistry and Biochemistry, Worcester
Polytechnic Institute, 60 Prescott Street, Worcester, Massachusetts 01609, United States
| | - Tadas A. Buivydas
- Department
of Chemistry and Biochemistry, Worcester
Polytechnic Institute, 60 Prescott Street, Worcester, Massachusetts 01609, United States
| | - Remy F. Lalisse
- Department
of Chemistry and Biochemistry, The Ohio
State University, Columbus, Ohio 43210, United States
| | - Kalen B. Laybourn
- Department
of Chemistry and Biochemistry, Worcester
Polytechnic Institute, 60 Prescott Street, Worcester, Massachusetts 01609, United States
| | - Charlotte Stern
- Integrated
Molecular Structure Education and Research Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Margaret Richins
- Department
of Chemistry and Biochemistry, Worcester
Polytechnic Institute, 60 Prescott Street, Worcester, Massachusetts 01609, United States
| | - Sean M. Burns
- Department
of Chemistry and Biochemistry, Worcester
Polytechnic Institute, 60 Prescott Street, Worcester, Massachusetts 01609, United States
| | - Arielle Shelby
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Christopher M. Hadad
- Department
of Chemistry and Biochemistry, The Ohio
State University, Columbus, Ohio 43210, United States
| | - Anita E. Mattson
- Department
of Chemistry and Biochemistry, Worcester
Polytechnic Institute, 60 Prescott Street, Worcester, Massachusetts 01609, United States
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Demidoff FC, Caleffi GS, Figueiredo M, Costa PRR. Ru(II)-Catalyzed Asymmetric Transfer Hydrogenation of Chalcones in Water: Application to the Enantioselective Synthesis of Flavans BW683C and Tephrowatsin E. J Org Chem 2022; 87:14208-14222. [PMID: 36251770 DOI: 10.1021/acs.joc.2c01733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The oxo-tethered-Ru(II) precatalyst promoted the one-pot C═C/C═O reduction of chalcones using sodium formate as the hydrogen source in water through asymmetric transfer hydrogenation. Twenty-seven 1,3-diarylpropan-1-ols were obtained in good to excellent yields (up to 96%) and enantiomeric purities (up to 98:2). Our data suggested that the enones are first reduced to the corresponding dihydrochalcones (1,4-selectivity) and then into 1,3-diarylpropan-1-ols (C═O reduction). The stereoelectronic effects of electron-donating and electron-withdrawing groups at the ortho, meta and para positions of both aromatic rings were evaluated. The 2-OH group at the B ring was well tolerated, allowing a straightforward enantioselective synthesis of two flavans through the Mitsunobu cyclization, the antiviral (S)-BW683C and the natural flavan (S)-tephrowatsin E.
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Affiliation(s)
- Felipe C Demidoff
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
| | - Guilherme S Caleffi
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
| | - Marcella Figueiredo
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
| | - Paulo R R Costa
- Laboratório de Química Bioorgânica (LQB), Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco H, Cidade Universitária, 21.941-902 Rio de Janeiro, Brasil
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Molina Betancourt R, Bacheley L, Karapetyan A, Guillamot G, Phansavath P, Vidal V. An environmentally sustainable synthesis of enantioenriched CF3‐chromanol, indanol and tetralol derivatives by Rh‐catalyzed asymmetric transfer hydrogenation. ChemCatChem 2022. [DOI: 10.1002/cctc.202200595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Lucas Bacheley
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris iCLeHS FRANCE
| | - Anzhela Karapetyan
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris iCLeHS FRANCE
| | | | | | - Virginie Vidal
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris Institute of Chemistry for Life & Health Sciences 11 rue Pierre et Marie Curie 75005 Paris FRANCE
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