Diazoverbindungen. 72. (Diazoalkyl)phosphane - Synthese durch elektrophile Diazoalkansubstitution und oxidative Additionsreaktionen am Phosphor
作者:Hans-Joachim Nees、Harald Keller、Thomas Facklam、Albert Herrmann、Jochen Welsch、Uwe Bergstr��er、Heinrich Heydt、Manfred Regitz
DOI:10.1002/prac.19933350704
日期:——
Electrophilic diazoalkane substitution of the diazomethyl compounds lab with the chloro phosphanes 2a-o in the presence of lithium diethylamide yields the diazoalkyl phosphanes 3a-z. Oxidative addition of oxygen, sulfur and selenium at phosphorus leads into the series of oxo, thioxo and selenoxo phosphanes having diazoalkyl substituents (4a-d, 5a-m and 7a-d). The silyl group of 5n,o is cleaved by chromatography on aluminium oxide to yield the (diazomethyl)phosphane sulfides 6a,b.