Palladium-Catalyzed Intermolecular Three-Component Coupling of Organic Halides with Alkynes and Alkenes: Efficient Synthesis of Oligoene Compounds
作者:Kana Shibata、Tetsuya Satoh、Masahiro Miura
DOI:10.1002/adsc.200700171
日期:2007.10.8
intermolecular three-component coupling of aryl or vinyl halides, diarylacetylenes, and monosubstituted alkenes effectively proceeds in the presence of palladium acetate, lithium chloride, and sodium bicarbonate as catalyst, promoter, and base, respectively, in aqueous DMF or DMSO to produce the corresponding 1,3-butadiene or 1,3,5-hexatriene derivatives. Use of dienyl bromides allows the coupling to afford
芳基或乙烯基卤化物,二芳基乙炔和单取代烯烃的分子间三组分偶联在DMF或DMSO水溶液中分别存在乙酸钯,氯化锂和碳酸氢钠作为催化剂,促进剂和碱的情况下有效进行相应的1,3-丁二烯或1,3,5-己三烯衍生物。使用二烯基溴化物可使偶合反应得到1,3,5,7-辛酸酯。在当前的催化条件下,通过乙烯基溴和二芳基乙炔的1:2偶联而无需添加烯烃也可有效地形成富烯衍生物。