Transition-metal-catalyzed rearrangement of 5-alkynals to γ-alkynylketones and 1-cyclopentenylketones†
Abstract
The transition-metal-catalyzed rearrangement of 5-alkynals to γ-alkynylketones and 1-cyclopentenylketones was developed using [Rh(P(OPh)3)2]BF4 or Cu(OTf)2 as a