Thermally induced gas phase phosphonylation of arenes via intramolecular trapping of an aryl metaphosphate moiety
作者:J. I. G. Cadogan、Alan H. Cowley、Ian Gosney、Marek Pakulski、Peter M. Wright、Salih Yaslak
DOI:10.1039/c39860001685
日期:——
2-Aryloxy-1,3,2-dioxaphospholanes break down on pyrolysis in the gas phase by a mechanism best accounted for in terms of the formation of metaphosphate (ArOPO2) moieties, which rearrange to cyclic phosphonic monoesters via intramolecular insertion reactions, unless an abstractable β-hydrogen is present when a Chugaev-type reaction takes place to give a terminal alkene.
2-芳氧基-1,3,2-二氧杂膦酸酯在气相中的热解过程中,通过最能解释偏磷酸根(ArOPO 2)部分形成的机理分解,该偏磷酸根通过分子内插入反应重排为环状膦酸酯单酯,除非当发生Chugaev型反应以生成末端烯烃时,存在可提取的β氢。