Phosphorus oxyllalides are used as starting illaterials for the preparation of many organopl1osphorus compounds. The reactive halogens call be easily replaced by allcoxy, amiclo, ~uercapto groups, etc. The replacement of one of the l~alogens with an isocyanate group in the pl~osplloryl halicles increases the versatility of these compou~~ds and eilables the preparatioil of illany new groups of organophosphorus conlpouilds. Pl~osphorisocyanatidic clichloride was ...
