First Palladium-Catalyzed Direct Regioselective C-5 (Het)Arylation of Mono- or Disubstituted Thiazolo[3,2-<i>b</i>][1,2,4]triazoles
作者:Mikaël Le Meur、Stéphane Bourg、Stéphane Massip、Mathieu Marchivie、Christian Jarry、Gérald Guillaumet、Sylvain Routier
DOI:10.1002/ejoc.201402193
日期:2014.6
polysubstituted thiazolo[3,2-b][1,2,4]triazoles through C-5 (het)arylation. The direct C–H activation protocol giving access to di- and trisubstituted derivatives in excellent yields was optimized. The method is suitable for use with a wide range of (hetero)arylbromides, and allows access to a collection of C-5,6 bis(het)aryl derivatives with full regioselectivity. The results are supported by a full description