Vinylidene-silicon-compound and a process for its production

Abstract

A novel silicone compound having a group such as methoxy group, which can be bonded to an inorganic substance and a vinylidene group and being useful as a silane coupling agent. The compound has the following general formula ##STR1## where R is an alkyl group of 1 to 7 carbon atoms or a hydrogen atom; R' and R" respectively represent an alkyl group of 1 to 7 carbon atoms; X and X' respectively represent a chlorine atom or an alkoxy group of 1 to 4 carbon atoms; and n and m respectively represent an integer of 0 to 3. The compound is prepared by reacting an alkyl allene represented by the general formula H.sub.2 C.dbd.C.dbd.CHR with a disilane represented by the general formula R'.sub.n X.sub.3-n Si.sub.2 R".sub.m X'.sub.3-n (where R, R', R", X, X', n and m are as defined above) in the presence of a phosphine complex of a transition metal.

Dependencies are inferred from the claim text.