“On water” catalytic enantioselective sulfenylation of deconjugated butyrolactams
作者:Soumya Jyoti Singha Roy、Santanu Mukherjee
DOI:10.1039/c7ob01714f
日期:——
first catalytic enantioselective α-sulfenylation of deconjugated butyrolactams has been developed using dimeric cinchona alkaloids as catalysts in a water-enriched reaction medium. Highly substituted and densely functionalized γ-lactams, bearing a quaternarystereogeniccenter, are produced with up to 99.5:0.5 er. The applicability of the same catalyst system for the enantioselective α-selenylation