Hexacoordinated Phosphorus Derivatives in the Reaction of Alkylenechlorophosphites with Hydroxylated Bisazomethines

摘要

We found previously that the reaction of equimolar amounts of hydroxylated bisazomethines with alkylenechlorophosphites in the absence of a base leads to the formation of the hexacoordinated phosphorus derivatives [1, 2]. In addition, the studied reactions were characterized by the high stereoselectivity, which allows ob- taining P(VI)-derivatives in an optically pure form, with the phosphorus atom as a stereogenic center [3]. In order to study the limits of applicability of this reaction we involved diimine I derived from the 2-hydroxy-5-chloroacetophenone and diaminoethane in the reaction with the hydroxylated alkylenechlorophosphites.