Regioselective synthesis of trifluoromethylated 3-(pyrazolyl)indoles on the basis of 6-(trifluoromethyl)comanic acid
作者:Boris I. Usachev、Dmitrii L. Obydennov、Vyacheslav Ya. Sosnovskikh
DOI:10.1016/j.jfluchem.2011.12.008
日期:2012.3
A number of trifluoromethylated 3-(pyrazolyl)indoles was synthesized from 2-(trifluoromethyl)comanic acid, its ethyl ester and amide via intermediate isomeric 5(3)-[3,3,3-trifluoro-2-(phenylhydrazono)propyl]pyrazole-3(5)-carboxylic acids and their derivatives.