Alkylation/elimination from azetidinium ylides: an entry to functionalized acrylonitriles
作者:Cheikh Lo、Olivier David、François Couty
DOI:10.1016/j.tetlet.2013.11.092
日期:2014.1
Azetidinium triflates were reacted in a one-pot two-steps sequence involving, generation of an azetidinium ylide, its alkylation with an halide, and final regioselective Hofmann elimination of the produced alkylated azetidinium ion to yield substituted α,β-unsaturated nitriles bearing an aminoethyl side-chain. The scope of this sequence was examined, and was found to depend both on the steric hindrance