Patent ID: 6448426
Filing Date: 2002-09-10
Classification: B60C,C07F,C08K

Abstract:
A process for the production of organosilicon compounds of the formula:(RO)3âˆ’mRmSiâ€”Alkâ€”Snâ€”Alkâ€”SiRm(OR)3âˆ’m where R is independently a monovalent hydrocarbon of 1 to 12 carbon atoms; Alk is a divalent hydrocarbon of 1 to 18 carbon atoms; m is an integer of 0 to 2, n is a number from 1 to 8; comprising:(A) reacting sulfur, a phase transfer catalyst, a sulfide compound having the formula M2Sn or MHS, where H is hydrogen, M is ammonium or an alkali metal, and water to form an intermediate reaction product; (B) reacting said intermediate reaction product with a silane compound of the formula; (RO)3âˆ’mRmSiâ€”Alkâ€”X where X is Cl, Br or I to form a product mixture(C) separating the organosilicon compound from the product mixture.