Synthesis and reactions of 3,9‐diisocyanates and diisothiocyanates in the 2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro[5.5] undecane series

Abstract

The synthesis of several novel phosphorus‐containing isocyanates and isothiocyanates is reported. These compounds are spiranes with two six‐membered dioxaphosphorinane rings in their respective molecule. The phosphorus‐bonded isocyanato and isothiocyanato groups are capable of undergoing addition reactions with active hydrogen atom‐containing compounds.