Intramolecular Transformation of 2-Benzylideneaminoethoxybenzo [d]-1,3,2-dioxaphosphorin-4-one into 3,4-Benzo-10-phenyl-1-aza-5,7-dioxa-6-phosphabicyclo-[4.3.1] decane-2,6-dione

摘要

Alkylideneaminoalkoxy derivatives of P(III) A readily undergo cyclization in the presence of proton-donating reagents to form 1,4,2-oxazaphosphacyclanes B [1-3], which are difficultly accessible by other methods. The derivatives A obtained from chloro-phosphites, β- or γ-irninoalcohols in the presence of a base are stable and some of them are distilled under reduced pressure [4].