Unexpected Elimination to α,β-Alkynylketones in the Reaction of Dianions of 1-Arylenaminones with Trimethylchlorosilane

Article abstract of DOI:10.1016/0040-4039(91)85048-A

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 γ-silylated enaminones.Compounds arising from silicon attack at the o