An unprecedented stereoselective base-induced trimerization of an α-bromovinylsulfone
作者:Brendan Fisher、Romain J. Lepage、Jonathan M. White、Young Ye、Elizabeth H. Krenske、Mark A. Rizzacasa
DOI:10.1039/c7ob01121k
日期:——
A unprecedented base-induced trimerization of bromovinylsulfone 1 afforded the cyclohexene 6 as a single diastereoisomer. Optimization of this reaction gave the adduct 6 in 49% yield. A mechanistic rationale for the trimerization involving consecutive SN2' additions and [3,3]-rearrangements and a final stereoselective intramolecular conjugate addition is proposed and supported by M06-2X density functional