Wittig olefination in the absence of an exogenous base: A new synthesis of α-substituted primary allylic amines.
作者:Joseph F. Dellaria、Kevin J. Sallin
DOI:10.1016/s0040-4039(00)94666-5
日期:1990.1
A new synthesis of α-substituted primary allylic amines through the in situ generation and trapping of an ylide from the reaction of an N-acyl aziridine, triphenylphosphine, and an aldehyde in refluxing isopropanol is reported. These compounds can be prepared enantioselectively (>94.6% ee) by employing a chiral nonracemic N-acyl aziridine.
据报道,通过N-酰基氮丙啶,三苯基膦和醛在回流的异丙醇中的反应原位生成和捕获内酰胺,可以合成α-取代的伯烯丙基胺。通过使用手性非外消旋N-酰基氮丙啶,可以对映选择性地制备这些化合物(> 94.6%ee)。