Patent ID: 8927753
Filing Date: 2015-01-06
Classification: C07F

Abstract:
1. A method for preparing a di-organo-di-alkoxysilane compound comprising: a) reacting a tetraalkoxysilane compound having the general formula Si(OR b) reacting the mono-organo-tri-alkoxysilane compound of step a) with a chlorinating agent to form a chlorinated mono-organo-di-alkoxysilane compound of general formula, wherein a molar ratio between the mono-organo-tri-alkoxysilane compound to the chlorinating agent is from 1 to 1.5; c) reacting the chlorinated mono-organo-di-alkoxysilane compound of step b) with a second Grignard reagent of general formula R wherein a molar ratio of the second Grignard compound and the chlorinated mono-substituted dialkoxy silane compound is from 1 to 1.5; and wherein R