Stereoselective Synthesis of Polysubstituted Alkenes through a Phosphine-Mediated Three-Component System of Aldehydes, α-Halo Carbonyl Compounds, and Terminal Alkenes
作者:Da-Neng Liu、Shi-Kai Tian
DOI:10.1002/chem.200900177
日期:2009.4.27
mediate the one‐pot Wittig reaction of aldehydes with α‐halo carbonyl compounds for the synthesis of 1,2‐disubstituted and trisubstituted alkenes in an excellent stereoselective fashion. Furthermore, the first one‐pot, three‐component reaction of aldehydes, α‐halo acetates, and terminal alkenes has been developed in the presence of PPh3 to produce trisubstituted alkenes with excellent E selectivity (see
几何控制:PPh 3和丙烯酸甲酯(或丙烯酰胺)能够介导醛与α-卤代羰基化合物的单锅Wittig反应,以出色的立体选择性方式合成1,2-二取代和三取代的烯烃。此外,在PPh 3的存在下,醛,α-卤代乙酸盐和末端烯烃的第一个单锅,三组分反应已经开发出来,可生产具有出色E选择性的三取代烯烃(参见方案)。