| abstract |
The invention relates to a process for preparing a silane of the formula I n R 6 R 5 CH-R 4 CH—SiR 1 R 2 R 3 (I), n which comprises reacting a silane of the formula II n HSiR 1 R 2 R 3 (II), n with an alkene of the formula III n R 6 R 5 CH═CHR 4 (III), n in the presence of an iridium compound of the formula IV as catalyst n [(diene)IrCl] 2 (IV), n and free diene as cocatalyst, where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R and diene are as defined in claim 1. |