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Bertrand X, Pucheault M, Chabaud L, Paquin JF. Synthesis of Tertiary Fluorides through an Acid-Mediated Deoxyfluorination of Tertiary Alcohols. J Org Chem 2023; 88:14527-14539. [PMID: 37769207 DOI: 10.1021/acs.joc.3c01558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
The combination of methanesulfonic acid and potassium bifluoride is reported for the deoxyfluorination of tertiary alcohols. Under metal-free conditions that use readily available, cheap, and easy-to-handle reagents, a range of tertiary alcohols could be converted into the corresponding fluorides in excellent yields (average yields of 85% for 23 examples). Mechanistic investigation showed that the reaction proceeds at 0 °C, in part, through an elimination/hydrofluorination pathway, but no residual alkenes are observed. The application of these conditions for the fluorination of ether and ester is also demonstrated.
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Affiliation(s)
- Xavier Bertrand
- CCVC, PROTEO, Département de chimie, Université Laval, 1045 Avenue de la médecine, Québec, Québec G1V 0A6, Canada
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Mathieu Pucheault
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Laurent Chabaud
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Jean-François Paquin
- CCVC, PROTEO, Département de chimie, Université Laval, 1045 Avenue de la médecine, Québec, Québec G1V 0A6, Canada
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Yang C, Yuan Y, Shen M, Wang K, Xu H, Wang Y, Chen M, Bao J, Gao M. Modularized Enzymatic Tandem Reaction for tsRNA Detection. Anal Chem 2022; 94:15887-15895. [DOI: 10.1021/acs.analchem.2c04010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cheng Yang
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Yi Yuan
- College of Pharmacy and Laboratory Medicine, Third Military Medical University (Army Medical University), No. 29 Gaotanyan Road, Chongqing 400038, China
| | - Man Shen
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Ke Wang
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Hanqing Xu
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Yingran Wang
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Ming Chen
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
- College of Pharmacy and Laboratory Medicine, Third Military Medical University (Army Medical University), No. 29 Gaotanyan Road, Chongqing 400038, China
- State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Jing Bao
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
| | - Mingxuan Gao
- Department of Clinical Laboratory Medicine, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan Road, Chongqing 400038, P. R. China
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