Patent ID: 8039646

Claim:
A process for preparing glycidyloxyalkylalkoxysilanes of the general formula (I) (R″)O—C n H 2n Si(R′) m (OR) 3-m (I), where groups R and R′ are each, independently of one another, a linear or branched alkyl group having from 1 to 4 carbon atoms, n is 1, 2, 3, 4, 5, 6, 7 or 8 and m is 0, 1, 2 or 3 and R″ is an H 2 C(O)CH— or H 2 C(O)CHCH 2 — group, which comprises reacting (i) a functionalized alkene of the general formula (II) (R″)O—C n H 2n-1 (II), where R″ is an H 2 C(O)CH— or H 2 C(O)CHCH 2 — group and n is 1, 2, 3, 4, 5, 6, 7 or 8, with (ii) at least one hydrogenalkoxysilane of the general formula (III) HSi(R′) m (OR) 3-m (III), where groups R and R′ are each, independently of one another, a linear or branched alkyl group having from 1 to 4 carbon atoms and m is 0, 1, 2 or 3, in the presence of (iii) at least one homogeneous catalyst, (iv) at least one solvent and/or at least one diluent and (v) at least one promoter.