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Lombardi L, Cerveri A, Giovanelli R, Castiñeira Reis M, Silva López C, Bertuzzi G, Bandini M. Direct Synthesis of α-Aryl-α-Trifluoromethyl Alcohols via Nickel Catalyzed Cross-Electrophile Coupling. Angew Chem Int Ed Engl 2022; 61:e202211732. [PMID: 36161744 PMCID: PMC9828748 DOI: 10.1002/anie.202211732] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Indexed: 01/12/2023]
Abstract
A nickel-catalyzed reductive cross-electrophile coupling between the redox-active N-trifluoroethoxyphthalimide and iodoarenes is documented. The protocol reproduces a formal arylation of trifluoroacetaldehyde under mild conditions in high yields (up to 88 %) and with large functional group tolerance (30 examples). A combined computational and experimental investigation revealed a pivotal solvent assisted 1,2-Hydrogen Atom Transfer (HAT) process to generate a nucleophilic α-hydroxy-α-trifluoromethyl C-centered radical for the Csp2 -Csp3 bond forming process.
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Affiliation(s)
- Lorenzo Lombardi
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly,Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | - Alessandro Cerveri
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | - Riccardo Giovanelli
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly,Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | | | | | - Giulio Bertuzzi
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly,Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
| | - Marco Bandini
- Dipartimento di Chimica “Giacomo Ciamician”Alma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly,Center for Chemical Catalysis—CAlma Mater Studiorum—Università di BolognaVia Selmi 240126BolognaItaly
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2
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Terashima K, Kawasaki-Takasuka T, Minami I, Yamazaki T. Synthesis and synthetic applications of (4-hydroxyphenyl)perfluoroalkylmethanols. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Meng N, Yu W, Suzuki T, Chen M, Qi Z, Hu B, Bao J, Debenham JS, Mazzola R, Duffy JL. Mild Condition for the Deoxygenation of α-Heteroaryl-Substituted Methanol Derivatives. J Org Chem 2021; 86:5560-5567. [PMID: 33784101 DOI: 10.1021/acs.joc.1c00067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A mild condition via PPh3/I2/imidazole for the deoxygenation of substituted methanol derivatives has been identified. This metal-free process was found to proceed well on secondary or tertiary alcohols substituted with one or two heteroaryl groups, and it tolerates acid-sensitive heterocycles. This condition works for methanol derivatives substituted with 2-pyridyl, 4-pyridyl, or other heterocyclic groups, allowing the negative charge formed during the reaction to resonate to a nitrogen atom. Methanol derivatives substituted with 3-pyridyl or heterocyclic groups that do not allow the negative charge formed during the reaction to resonate to a nitrogen atom will not undergo deoxygenation under this condition.
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Affiliation(s)
- Na Meng
- IDSU, WuXi AppTec Company, Ltd., Shanghai 200131, China
| | - Wensheng Yu
- Merck & Company, Inc., 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Takao Suzuki
- IDSU, WuXi AppTec Company, Ltd., Shanghai 200131, China
| | - Maofen Chen
- IDSU, WuXi AppTec Company, Ltd., Shanghai 200131, China
| | - Zhiqi Qi
- IDSU, WuXi AppTec Company, Ltd., Shanghai 200131, China
| | - Bin Hu
- IDSU, WuXi AppTec Company, Ltd., Shanghai 200131, China
| | - Jianming Bao
- Merck & Company, Inc., 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - John S Debenham
- Merck & Company, Inc., 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Robert Mazzola
- Merck & Company, Inc., 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
| | - Joseph L Duffy
- Merck & Company, Inc., 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
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4
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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5
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Kani R, Inuzuka T, Kubota Y, Funabiki K. One-Pot Successive Turbo Grignard Reactions for the Facile Synthesis of α-Aryl-α-Trifluoromethyl Alcohols. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000550] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryunosuke Kani
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Toshiyasu Inuzuka
- Division of Instrumental Analysis; Life Science Research Center; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Yasuhiro Kubota
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
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