The first DMAP-mediated palladium-free Tsuji–Trost-type reaction of cyclic and acyclic Baylis–Hillman alcohols with active methylene compounds
作者:Olfa Mhasni、Farhat Rezgui
DOI:10.1016/j.tetlet.2009.11.053
日期:2010.1
Direct allylic substitution of cyclic Baylis–Hillman alcohols with active methylene compounds under modified Taber’s conditions (DMAP, toluene, reflux, 4 Å molecular sieves), with no Pd catalysts/activating agents, as is usually required for the process, affords the C-allylation products in moderate to good yields.
在改性泰伯条件(DMAP,甲苯,回流,4Å分子筛)下,用活性亚甲基化合物将环状Baylis-Hillman醇直接进行烯丙基取代,过程中通常不需要Pd催化剂/活化剂,从而得到C-烯丙基化产物,产率中等至良好。