Silver(i) NHC mediated C–C bond activation of alkyl nitriles and catalytic efficiency in oxazoline synthesis†
Abstract
Preparation of silver triazolylidene (trz) species from triazolium salts and Ag2O in refluxing MeCN leads to a selective C–C bond cleavage and the formation of complexes of general formula [(trz)Ag(CN)] from Calkyl–CN bond activation. Moreover, these silver carbene complexes are precursors of highly active catalysts for oxazoline formation via aldol condensation.