Unexpected elimination to α,β-alkynylketones in the reaction of dianions of 1-arylenaminones with trimethylchlorosilane
作者:Giuseppe Bartoli、Cristina Cimarelli、Gianni Palmieri、Marcella Bosco、Renato Dalpozzo
DOI:10.1016/0040-4039(91)85048-a
日期:1991.11
Alkynylketones were obtained in good yield from reaction of 3-(N-isopropylamino)-1-arylbut-2-en-1-ones with chlorotrimethylsilane. On the other hand, t-butyldimethylchlorosilane leads to gamma-silylated enaminones. Compounds arising from silicon attack at the oxygen atom are never observed. Evidences of the mechanistic pathway of the reaction are reported.