Vinylic cations from solvolysis. 41. Solvolytic rearrangements of 2,2-dianisyl-1-tolylvinyl bromide and (E)- and (Z)-1,2- dianisyl-2-tolylvinyl bromide
The reaction of diarylketones and benzoyltrimethylsilane is mediated by lanthanoidmetals such as ytterbium to give the deoxygenatively acylated product, 1,1-diarylacetophenones in good yields. In the reaction with acetylsilane, the corresponding silyl enol ether was obtained in a moderate yield.