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Koohgard M, Enders L, Del Rio N, Li H, Moccia F, Khaled O, Bistri O, Helaja J, Sollogoub M, Mouriès-Mansuy V, Fensterbank L. β-Cyclodextrin-NHC-Au(I)-Catalyzed Enantioconvergent 1,5-Enyne Cycloisomerizations. Org Lett 2024; 26:5817-5821. [PMID: 38949965 DOI: 10.1021/acs.orglett.4c02003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Enantioconvergent transformations from racemic mixtures are attractive since they allow the generation of optically active products with full conversion despite the possibly adverse kinetic resolution process. When dealing with gold(I)-catalyzed cycloisomerizations, chirality transfer from the precursor is another possible diverting pathway, which renders enantioconvergence challenging. Not surprisingly, enantioconvergent Au(I)-catalyzed processes have remained extremely rare. Herein we show that cavity-driven catalysis using β-cyclodextrin-NHC-Au(I) complexes brings opportunities to conduct highly enantioconvergent cycloisomerizations of 1,5-enynes, -enynols, and, -enynyl esters.
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Affiliation(s)
- Mehdi Koohgard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Lukas Enders
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
- Department of Chemistry, University of Helsinki, 00014 Helsinki, Finland
| | - Natalia Del Rio
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Hang Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Fabio Moccia
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Omar Khaled
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Olivia Bistri
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Juho Helaja
- Department of Chemistry, University of Helsinki, 00014 Helsinki, Finland
| | - Matthieu Sollogoub
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Virginie Mouriès-Mansuy
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Louis Fensterbank
- Collège de France, Université PSL, Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, 4 place Jussieu, 75005 Paris, France
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Barbazanges M, Gimbert Y, Fensterbank L. Gold-Catalyzed Addition of Propargyl Acetates to Olefins via O-Acyl Migration/Cyclopropanation Sequence: Insight into the Diastereoselective Formation of the Alkene. J Org Chem 2023. [PMID: 36787624 DOI: 10.1021/acs.joc.2c02623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
This article discloses a study on the well-known addition of propargyl acetates to olefins via an O-acyl migration/cyclopropanation sequence. Herein, we show that the stereochemical outcome of the olefin is strongly dependent on the gold catalyst and reaction parameters (concentration, temperature, and alkene partner equivalents); the E- and Z-isomers can be selectively formed by the judicious choice of reaction conditions.
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Affiliation(s)
- Marion Barbazanges
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (UMR CNRS 8232), 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Yves Gimbert
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (UMR CNRS 8232), 4 Place Jussieu, 75252 Paris Cedex 05, France.,Département de Chimie Moléculaire (UMR CNRS 5250), Université Grenoble Alpes, F-38050 Grenoble, France
| | - Louis Fensterbank
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (UMR CNRS 8232), 4 Place Jussieu, 75252 Paris Cedex 05, France
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Praveen C. Regio‐ and Site‐selective Molecular Rearrangements by Homogeneous Gold Catalysis. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000444] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chandrasekar Praveen
- Electrochemical Power Sources Division Central Electrochemical Research Institute (CSIR-Laboratory) Alagappapuram Karaikudi-630003, Sivagangai District Tamil Nadu India
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4
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Rocchigiani L, Bochmann M. Recent Advances in Gold(III) Chemistry: Structure, Bonding, Reactivity, and Role in Homogeneous Catalysis. Chem Rev 2020; 121:8364-8451. [DOI: 10.1021/acs.chemrev.0c00552] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
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Reiersølmoen AC, Csókás D, Pápai I, Fiksdahl A, Erdélyi M. Mechanism of Au(III)-Mediated Alkoxycyclization of a 1,6-Enyne. J Am Chem Soc 2019; 141:18221-18229. [PMID: 31618010 DOI: 10.1021/jacs.9b09108] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gold-mediated homogeneous catalysis is a powerful tool for construction of valuable molecules and has lately received growing attention. Whereas Au(I)-catalyzed processes have become well established, those mediated by Au(III) have so far barely been explored, and their mechanistic understanding remains basic. Herein, we disclose the combined NMR spectroscopic, single-crystal X-ray crystallographic, and computational (DFT) investigation of the Au(III)-mediated alkoxycyclization of a 1,6-enyne in the presence of a bidentate pyridine-oxazoline ligand. The roles of the counterion, the solvent, and the type of Au(III) complex have been assessed. Au(III) is demonstrated to be the active catalyst in alkoxycyclization. Alkyne coordination to Au(III) involves decoordination of the pyridine nitrogen and is the rate-limiting step.
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Affiliation(s)
- Ann Christin Reiersølmoen
- Department of Chemistry , Norwegian University of Science and Technology , Høgskoleringen 5 , 7491 Trondheim , Norway
| | - Dániel Csókás
- Institute of Organic Chemistry, Research Centre for Natural Sciences , Hungarian Academy of Sciences , Magyar tudósok körútja 2 , H-1117 Budapest , Hungary
| | - Imre Pápai
- Institute of Organic Chemistry, Research Centre for Natural Sciences , Hungarian Academy of Sciences , Magyar tudósok körútja 2 , H-1117 Budapest , Hungary
| | - Anne Fiksdahl
- Department of Chemistry , Norwegian University of Science and Technology , Høgskoleringen 5 , 7491 Trondheim , Norway
| | - Máté Erdélyi
- Department of Chemistry , BMC Uppsala University , Husargatan 3 , 752 37 Uppsala , Sweden
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