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Messara A, Panossian A, Mikami K, Hanquet G, Leroux FR. Direct Deprotonative Functionalization of α,α-Difluoromethyl Ketones using a Catalytic Organosuperbase. Angew Chem Int Ed Engl 2023; 62:e202215899. [PMID: 36602033 DOI: 10.1002/anie.202215899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/06/2023]
Abstract
The deprotonative functionalization of α,α-difluoromethyl ketones is described herein. Using a catalytic organosuperbase and a silane additive, the corresponding difluoroenolate could be generated and trapped with aldehydes to deliver various α,α-difluoro-β-hydroxy ketones in high yields. This new strategy tolerates numerous functional groups and represents the access to the difluoroenolate by direct deprotonation of the difluoromethyl unit. The diastereoselective version of the reaction was also investigated with d.r. up to 93 : 7. Several transformations were performed to demonstrate the synthetic potential of these α,α-difluoro-β-hydroxy ketones. In addition, this method has been extended to the use of other electrophiles such as imines and chalcogen derivatives, and a difluoromethyl sulfoxide as nucleophile, thus leading to a diversity of difluoromethylene compounds.
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Affiliation(s)
- Amélia Messara
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
| | - Armen Panossian
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
| | - Koichi Mikami
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, O-okayama, Meguro-ku, 152-8552, Tokyo, Japan
| | - Gilles Hanquet
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
| | - Frédéric R Leroux
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
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Huang J, Wu F, Li Z, Ni Z, Sun R, Nie H, Tang H, Song L. Indium-Mediated Reformatsky Reaction of Iododifluoro Ketones with Aldehydes: Preparation of α,α-Difluoro-β-hydroxyketone Derivatives in Water. SYNOPEN 2022. [DOI: 10.1055/s-0040-1719888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
AbstractIndium can efficiently mediate the Reformatsky reaction of iododifluoroacetylketones with aldehydes to afford the corresponding α,α-difluoro-β-hydroxyketones in high yield in pure water This reaction has excellent substrate suitability and functional group selectivity and provides an efficient approach for the synthesis of bioactive molecules containing the α,α-difluoro-β-hydroxyketone pharmacophore.
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Affiliation(s)
- Jinwen Huang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology
| | - Fanhong Wu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology
| | - Zhongyuan Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
| | - Zhuang Ni
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
| | - Ran Sun
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
| | - Hui Nie
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
| | - Hui Tang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
| | - Lixing Song
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology
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Yang J, Liu S, Hong P, Li J, Wang Z, Ren J. Synthesis of 2,2-Difluoro-3-hydroxy-1,4-diketones via an HFIP-Catalyzed Mukaiyama Aldol Reaction of Glyoxal Monohydrates with Difluoroenoxysilanes. J Org Chem 2022; 87:1144-1153. [PMID: 34994195 DOI: 10.1021/acs.joc.1c02504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel efficient HFIP-catalyzed synthesis of structurally diverse 2,2-difluoro-3-hydroxy-1,4-diketone derivatives from readily available glyoxal monohydrates and difluoroenoxysilanes is described. This convenient protocol is induced by the distinctive fluorine effect of the reactants and the fluoroalcohol catalyst, which represents the first application of fluoroalcohol catalysis in a Mukaiyama aldol reaction.
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Affiliation(s)
- Jianguo Yang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, P.R. China.,Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Saimei Liu
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, P.R. China
| | - Peng Hong
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Jinshan Li
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Jun Ren
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, P.R. China
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Xiao P, Pannecoucke X, Bouillon JP, Couve-Bonnaire S. Wonderful fusion of organofluorine chemistry and decarboxylation strategy. Chem Soc Rev 2021; 50:6094-6151. [PMID: 34027960 DOI: 10.1039/d1cs00216c] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Decarboxylation strategy has been emerging as a powerful tool for the synthesis of fluorine-containing organic compounds that play important roles in various fields such as pharmaceuticals, agrochemicals, and materials science. Considerable progress in decarboxylation has been made over the past decade towards the construction of diverse valuable fluorinated fine chemicals for which the fluorinated part can be brought in two ways. The first way is described as the reaction of non-fluorinated carboxylic acids (and their derivatives) with fluorinating reagents, as well as fluorine-containing building blocks. The second way is dedicated to the exploration and the use of fluorine-containing carboxylic acids (and their derivatives) in decarboxylative transformations. This review aims to provide a comprehensive summary of the development and applications of decarboxylative radical, nucleophilic and cross-coupling strategies in organofluorine chemistry.
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Affiliation(s)
- Pan Xiao
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - Xavier Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
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Affiliation(s)
- Manfred Braun
- Institute of Organic and Macromolecular Chemistry Heinrich-Heine-University Düsseldorf Universitätsstr. 1 40225 Düsseldorf Germany
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Affiliation(s)
- Shuning Mao
- Department of Chemistry; Lishui University No. 1; Xueyuan Road 323000 Lishui City Zhejiang Province P. R. China
| | - Kaijun Chen
- Department of Chemistry; Lishui University No. 1; Xueyuan Road 323000 Lishui City Zhejiang Province P. R. China
| | - Guobing Yan
- Department of Chemistry; Lishui University No. 1; Xueyuan Road 323000 Lishui City Zhejiang Province P. R. China
| | - Dayun Huang
- Department of Chemistry; Lishui University No. 1; Xueyuan Road 323000 Lishui City Zhejiang Province P. R. China
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Kawanishi R, Hattori S, Iwasa S, Shibatomi K. Amine-Catalyzed Decarboxylative Aldol Reaction of β-Ketocarboxylic Acids with Trifluoropyruvates. Molecules 2019; 24:E2773. [PMID: 31366138 PMCID: PMC6695914 DOI: 10.3390/molecules24152773] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/19/2019] [Accepted: 07/25/2019] [Indexed: 11/16/2022] Open
Abstract
Decarboxylative aldol reaction of aliphatic carboxylic acids is a useful method for C-C bond formation because carboxylic acids are an easily available class of compounds. In this study, we found that the decarboxylative aldol reaction of tertiary β-ketocarboxylic acids and trifluoropyruvates proceeded smoothly to yield the corresponding aldol products in high yields and with high diastereoselectivity in the presence of a tertiary amine catalyst. In this reaction, we efficiently constructed a quaternary carbon center and an adjacent trifluoromethylated carbon center. This protocol was also extended to an enantioselective reaction with a chiral amine catalyst, and the desired product was obtained with up to 73% enantioselectivity.
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Affiliation(s)
- Ryouta Kawanishi
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Shinya Hattori
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Seiji Iwasa
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Kazutaka Shibatomi
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan.
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