An Unusual Oxidation of 1,5-Dimethyl-2,4-bis(dialkylamino)-1,5-diaza-2,4-diphosphinan-6-one with Hexafluoroacetone
作者:Igor V. Shevchenko、Rostislav N. Mikolenko、Alexander N. Chernega、Eduard B. Rusanov、Hansjoerg Grützmacher
DOI:10.1002/1099-0682(20011)2001:1<195::aid-ejic195>3.0.co;2-z
日期:2001.1
The oxidation of heterocycles 5a,b, or 9 containing a methylenediphosphane unit, with hexafluoroacetone does not lead to the expected dioxaphospholane heterocycles, but yields unstable carbodiphosphoranes 6a,b or ylide 10 respectively, which then react easily with HFA to give the stable intermediate products 7a,b or 11 of the Wittig reaction.
含有亚甲基二膦单元的杂环 5a、b 或 9 用六氟丙酮氧化不会产生预期的二氧杂膦杂环,但分别产生不稳定的碳二正膦 6a、b 或叶立德 10,然后它们很容易与 HFA 反应得到稳定的中间产物Wittig 反应的 7a、b 或 11。