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Photochemical Functionalization of Helicenes.
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SYSNO ASEP 0511585 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photochemical Functionalization of Helicenes. Author(s) Jakubec, Martin (UCHP-M) ORCID, SAI
Ghosh, I. (DE)
Storch, Jan (UCHP-M) RID, ORCID, SAI
König, B. (DE)Source Title Chemistry - A European Journal. - : Wiley - ISSN 0947-6539
Roč. 26, č. 2 (2020), s. 543-547Number of pages 5 s. Language eng - English Country DE - Germany Keywords helicene functionalizations ; visible light ; photoredox Subject RIV CC - Organic Chemistry OECD category Organic chemistry R&D Projects EF16_027/0007931 GA MŠk - Ministry of Education, Youth and Sports (MEYS) FV10082 GA MPO - Ministry of Industry and Trade (MPO) Method of publishing Open access Institutional support UCHP-M - RVO:67985858 UT WOS 000502253200001 EID SCOPUS 85076623159 DOI 10.1002/chem.201904169 Annotation We describe here a visible light photochemical approach for practical helicene functionalization at very mild reaction conditions. The photochemical reactions allow the regiospecific and innate late-stage functionalization of helicenes and are easily executed either via the activation of C(sp2)–Br bonds in helicenes using K2CO3 as inorganic base or direct C(sp2)–H helicene bond functionalization under oxidative photoredox reaction conditions. Overall, using these transformations six different functional groups are introduced to the helicene scaffold via C–C and four different C–heteroatom bond-forming reactions. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2021 Electronic address https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/chem.201904169
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