Palladium-catalyzed nucleophilic allylic substitution of Morita–Baylis–Hillman adducts with enamines: Synthesis of 1,5-dicarbonyl compounds
作者:Ghalia Bouhalleb、Jalloul Bouajila、Farhat Rezgui
DOI:10.1016/j.crci.2016.11.011
日期:2017.5
Abstract An efficient nucleophilic allylic substitution of a variety of Morita–Baylis–Hillman adducts with enamines catalyzed by Pd(OAc)2 in the presence of ZnBr2 as a promoter is described in the present study. The reaction gives SN2-type 1,5-dicarbonyl compounds that may subsequently undergo an intramolecular conjugate addition onto the enone moiety affording the corresponding 1,4-adducts. All the
摘要 本研究描述了在 ZnBr2 作为促进剂存在下,在 Pd(OAc)2 催化下,多种 Morita-Baylis-Hillman 加合物与烯胺的有效亲核烯丙基取代。该反应产生 SN2 型 1,5-二羰基化合物,该化合物随后可在烯酮部分上进行分子内共轭加成,从而提供相应的 1,4-加合物。所有合成的化合物均以中等至良好的产率分离并得到充分表征。