Chan–Evans–Lam N1-(het)arylation and N1-alkеnylation of 4-fluoroalkylpyrimidin-2(1H)-ones

Autor: Viktor M. Tkachuk, Oleh O. Lukianov, Mykhailo V. Vovk, Isabelle Gillaizeau, Volodymyr A. Sukach
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 2304-2313 (2020)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.16.191
Popis: The Chan–Evans–Lam reaction of 1-unsubstituted 4-fluoroalkylpyrimidin-2(1Н)-ones with arylboronic acids is reported as a facile synthetic route to hitherto unavailable N1-(het)aryl and N1-alkenyl derivatives of the corresponding pyrimidines. An efficient C–N bond-forming process is also observed by using boronic acid pinacol esters as coupling partners in the presence of Cu(II) acetate and boric acid. The 4-fluoroalkyl group on the pyrimidine ring significantly assists in the formation of the target N1-substituted products, in contrast to the 4-methyl and 4-unsubstituted substrates which do not undergo N1-arylation under similar reaction conditions.
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