Facile [2,3]-rearrangements of difluoroallylic alcohols with CP and CS bond formation
作者:Kevin Blades、Sunita T Patel、Jonathan M Percy、Robin D Wilkes
DOI:10.1016/0040-4039(96)01358-5
日期:1996.8
chlorodiphenylphosphine, to the corresponding sulfoxides and phosphine oxides. In the primary cases, the rearrangement was considerably slower, while in the tertiary cases, SN2′ chlorination reactions competed to a significant extent. Heating the sulfoxide products with triethyl phosphite failed to induce conversion back to the allylic alcohols, consistent with the strong preference of the CF2 centre for
伯,仲和叔二氟烯丙基醇在用苯基亚磺酰氯或氯二苯基膦处理后,容易地[2,3]重排为相应的亚砜和氧化膦。在主要情况下,重排相当慢,而在第三情况下,S N 2'氯化反应在很大程度上竞争。用亚磷酸三乙酯加热亚砜产物未能诱导转化回烯丙基醇,这与CF 2中心强烈偏爱sp 3杂交状态相一致。