MEYER, Andreas U., Tomáš SLANINA, Chang-Jiang YAO and Burkhard KÖNIG. Metal-Free Perfluoroarylation by Visible Light Photoredox Catalysis. ACS Catalysis. WASHINGTON: AMER CHEMICAL SOC, 2016, vol. 6, No 1, p. 369-375. ISSN 2155-5435. Available from: https://dx.doi.org/10.1021/acscatal.5b02410.
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Basic information
Original name Metal-Free Perfluoroarylation by Visible Light Photoredox Catalysis
Authors MEYER, Andreas U. (276 Germany), Tomáš SLANINA (203 Czech Republic, guarantor, belonging to the institution), Chang-Jiang YAO (156 China) and Burkhard KÖNIG (276 Germany).
Edition ACS Catalysis, WASHINGTON, AMER CHEMICAL SOC, 2016, 2155-5435.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10401 Organic chemistry
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 10.614
RIV identification code RIV/00216224:14310/16:00089987
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1021/acscatal.5b02410
UT WoS 000367706800040
Keywords in English perfluorophenyl; photocatalysis; visible light; metal-free conditions; C-H arylation; transient spectroscopy
Tags AKR, rivok
Changed by Changed by: Mgr. Michaela Hylsová, Ph.D., učo 211937. Changed: 27/1/2017 13:05.
Abstract
Visible light and eosin Y catalyze the direct arylation of simple arenes with fluorinated aryl bromides by a photoredox process. The reaction scope is broad in fluorinated compounds and arenes and the general and simple procedure provides a metal-free alternative for the synthesis of synthetically valuable polyfluorinated biaryl structures. The mild reaction conditions allow a selective reaction with the alkaloid brucine without protection of functional groups illustrating the potential of the process for late stage functionalization. Mechanistic investigations reveal the photoreduction of eosin Y via its triplet state by triethylamine and subsequent electron transfer from the eosin Y radical anion to the polyfluorinated bromoarene, which fragments into the polyfluorinated aryl radical and a bromide anion. A radical chain reaction mechanism was excluded by a quenching factor analysis.
Links
LM2011028, research and development projectName: RECETOX ? Národní infrastruktura pro výzkum toxických látek v prostředí
Investor: Ministry of Education, Youth and Sports of the CR
LO1214, research and development projectName: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)
Investor: Ministry of Education, Youth and Sports of the CR
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