Carbene intermediates in the reaction of trialkyl phosphites with dialkyl aroylphosphonates: formation of novel quasiphosphonium ylides
作者:D. Vaughan Griffiths、John C. Tebby
DOI:10.1039/c39860000871
日期:——
Reaction of trialkyl phosphites with dialkyl aroylphosphonates leads to the formation of anionic intermediates which, in the absence of electrophiles, undergo cleavage at temperatures above about 80 °C to give carbene intermediates; these undergo intramolecular carbene insertion reactions or are trapped by trialkyl phosphites to give novel ylides.
亚磷酸三烷基酯与芳烷基二烷基膦酸酯的反应导致形成阴离子中间体,在没有亲电子试剂的情况下,该阴离子中间体在高于约80°C的温度下裂解,得到卡宾中间体。它们经历分子内卡宾插入反应或被亚磷酸三烷基酯捕获以产生新的叶立德。