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  • Chan-Evans-Lam N1-(het)arylation and N1-alksmall ie, Cyrillicnylation of 4-fluoroalkylpyrimidin-2(1H)-ones

Chan-Evans-Lam N1-(het)arylation and N1-alksmall ie, Cyrillicnylation of 4-fluoroalkylpyrimidin-2(1H)-ones

Beilstein J. Org. Chem. 2020, 16, 2304-2313

DOI: 10.3762/bjoc.16.191

Tkachuk V.; Lukianov O.; Vovk M.; Gillaizeau I.; Sukach V.

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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