New chloro:phosphazene-substd. phosphate cpds.

摘要

Chlorophosphazene-substd. phosphates of formula (I) are new: X = PCl2=N-(PCl2=N)r-PCl2- or PCl3=N-(PCl2=N)r-PCl2-O-(SiR2O)s-SiR2-; Y and Z = X or (SiR2O)nSiR3 or Y+Z = (SiR2O)nSiR2; R = H, halogen and/or opt. substd. 1-6C hydrocarbyl, provided that only one H is bonded to each Si; n = 1-50; r = 0-50; s = 0-10000. Pref. (I) are prepd. by reacting chlorophosphazenes of formula PCL3=N-(PCl2=)r-PCl3<+>X<-> (II) with silyl phosphates of formula R3Si(OSiR2)5OaPO(OM)3-a (III), with polyphosphates corresp. to (III) or with cpds. of formula R3SiO(R2SiO)5e(P=O)f (IV). X = Cl or PCl2, a = 1-3; M = H or a cation; f = 1 or more, e = (f+2).