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Kiaku C, Martinage D, Sicim Y, Leech MC, Walsh JM, Poole DL, Mason J, Goodall ICA, Devo P, Lam K. eFluorination of Activated Alcohols Using Collidinium Tetrafluoroborate. Org Lett 2024; 26:2697-2701. [PMID: 37204455 DOI: 10.1021/acs.orglett.3c00976] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Tertiary C-F bonds are important structural designs; however, they suffer from challenging synthesis. Current methodologies use corrosive amine-HF salts or expensive and hazardous catalysts and reagents. Our group recently introduced collidinium tetrafluoroborate as an efficient fluorinating agent for anodic decarboxyfluorination reactions. Nevertheless, tertiary carboxylic acids are less readily available and more challenging to prepare than their alcohol analogues. Herein we report a practical, mild, and cheap electrochemical method to achieve deoxyfluorination of hindered carbon centers.
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Affiliation(s)
- Cyrille Kiaku
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Dorian Martinage
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Yasemin Sicim
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Matthew C Leech
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Jamie M Walsh
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Darren L Poole
- Discovery High-Throughput Chemistry, Medicinal Chemistry, GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, Hertfordshire, U.K
| | - Joseph Mason
- Discovery High-Throughput Chemistry, Medicinal Chemistry, GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, Hertfordshire, U.K
| | - Iain C A Goodall
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Perry Devo
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
| | - Kevin Lam
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, U.K
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Zhang GF, Han LJ, Guan CF, Ding CR. SO 2F 2-Mediated Fluorination of P(O)-H and P(O)-OH Compounds under Mild Conditions. J Org Chem 2023; 88:13142-13148. [PMID: 37654092 DOI: 10.1021/acs.joc.3c01364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
With the increasing relevance of organophosphorus fluorine compounds in the pharmaceutical industry, their synthesis has attracted great attention. Herein, we report an efficient fluorination strategy for P(O)-H and P(O)-OH compounds using sulfuryl fluoride as the fluorination reagent. Avoiding the use of expensive or complex prepreparation reagents for fluoridation, this strategy could conveniently construct a variety of fluorophosphonates and phosphonofluoridates under mild conditions and without additional oxidants.
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Affiliation(s)
- Guo-Fu Zhang
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
| | - Lin-Jun Han
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
| | - Chen-Fei Guan
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
| | - Cheng-Rong Ding
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P. R. China
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3
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Zhang G, Luo Z, Wang H, Deng L, Ding C. SO
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Promoted Deoxygenhalogenation from Alcohols: A Practical Method for Preparing Halides. ChemistrySelect 2022. [DOI: 10.1002/slct.202202853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guofu Zhang
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Zijin Luo
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Huimin Wang
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
| | - Linfang Deng
- The Third Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310014 P. R. China
| | - Chengrong Ding
- Department College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China
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