Phosphane-Catalyzed Umpolung Addition Reaction of Nucleophiles to Ethyl 2-Methyl-2,3-butadienoate
作者:Xiao-Yang Guan、Yin Wei、Min Shi
DOI:10.1002/ejoc.201100095
日期:2011.5
phosphane-catalyzed umpolung addition of various nucleophiles to ethyl 2-methyl-2,3-butadienoate is described. Oxygen, nitrogen, and carbon nucleophiles smoothly reacted with ethyl 2-methyl-2,3-butadienoate to give the corresponding umpolung addition products in good to excellent yields by a similar reaction mechanism. For sulfur nucleophiles, the addition reactions with ethyl 2-methyl-2,3-butadienoate proceeded
描述了磷烷催化的各种亲核试剂对 2-甲基-2,3-丁二烯酸乙酯的umpolung 加成。氧、氮和碳亲核试剂与 2-甲基-2,3-丁二烯酸乙酯顺利反应,通过类似的反应机理以良好至极好的产率得到相应的 umpolung 加成产物。对于硫亲核试剂,与 2-甲基-2,3-丁二烯酸乙酯的加成反应通过不同的机制进行。