The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives

We herein report that the regioselective anodic fluorination of S-alkyl benzothioate and its derivatives in various aprotic solvents using Et3N·nHF (n = 3–5) and Et4NF·nHF (n = 3–5) as supporting electrolyte and a fluorine source successfully provided the corresponding α-fluorinated products in mode...

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Main Authors: Shunsuke Kuribayashi, Tomoyuki Kurioka, Shinsuke Inagi, Ho-Jung Lu, Biing-Jiun Uang, Toshio Fuchigami
Format: Article
Language:English
Published: Beilstein-Institut 2018-02-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
Online Access:https://doi.org/10.3762/bjoc.14.27
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author Shunsuke Kuribayashi
Tomoyuki Kurioka
Shinsuke Inagi
Ho-Jung Lu
Biing-Jiun Uang
Toshio Fuchigami
author_facet Shunsuke Kuribayashi
Tomoyuki Kurioka
Shinsuke Inagi
Ho-Jung Lu
Biing-Jiun Uang
Toshio Fuchigami
author_sort Shunsuke Kuribayashi
collection DOAJ
description We herein report that the regioselective anodic fluorination of S-alkyl benzothioate and its derivatives in various aprotic solvents using Et3N·nHF (n = 3–5) and Et4NF·nHF (n = 3–5) as supporting electrolyte and a fluorine source successfully provided the corresponding α-fluorinated products in moderate yields. Dichloromethane containing Et4NF·4HF was found to be the most suitable combination as electrolytic solvent and supporting salt as well as fluorine source for the anodic fluorination. The electrochemical fluorination of cyclic benzothioates such as benzothiophenone was also achieved.
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spelling doaj.art-2a13d13f3b404b9da06ca51d26d50b9e2022-12-21T22:05:00ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972018-02-0114138939610.3762/bjoc.14.271860-5397-14-27The selective electrochemical fluorination of S-alkyl benzothioate and its derivativesShunsuke Kuribayashi0Tomoyuki Kurioka1Shinsuke Inagi2Ho-Jung Lu3Biing-Jiun Uang4Toshio Fuchigami5Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, JapanDepartment of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, JapanDepartment of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, JapanDepartment of Chemistry, National Tsing Hua University, 101, Sec 2, Kuang Fu Rd., Hsinchu 300, Taiwan, R.O.CDepartment of Chemistry, National Tsing Hua University, 101, Sec 2, Kuang Fu Rd., Hsinchu 300, Taiwan, R.O.CDepartment of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, JapanWe herein report that the regioselective anodic fluorination of S-alkyl benzothioate and its derivatives in various aprotic solvents using Et3N·nHF (n = 3–5) and Et4NF·nHF (n = 3–5) as supporting electrolyte and a fluorine source successfully provided the corresponding α-fluorinated products in moderate yields. Dichloromethane containing Et4NF·4HF was found to be the most suitable combination as electrolytic solvent and supporting salt as well as fluorine source for the anodic fluorination. The electrochemical fluorination of cyclic benzothioates such as benzothiophenone was also achieved.https://doi.org/10.3762/bjoc.14.27anodic cyclizationdiastereoselective fluorinationelectrosynthesisfluorobenzothiophenoneselective fluorination
spellingShingle Shunsuke Kuribayashi
Tomoyuki Kurioka
Shinsuke Inagi
Ho-Jung Lu
Biing-Jiun Uang
Toshio Fuchigami
The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives
Beilstein Journal of Organic Chemistry
anodic cyclization
diastereoselective fluorination
electrosynthesis
fluorobenzothiophenone
selective fluorination
title The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives
title_full The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives
title_fullStr The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives
title_full_unstemmed The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives
title_short The selective electrochemical fluorination of S-alkyl benzothioate and its derivatives
title_sort selective electrochemical fluorination of s alkyl benzothioate and its derivatives
topic anodic cyclization
diastereoselective fluorination
electrosynthesis
fluorobenzothiophenone
selective fluorination
url https://doi.org/10.3762/bjoc.14.27
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