# US 4,395,562 A · Vinylidene-silicon-compound and a process for its production

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- Number: US 4,395,562 A
- Document ID: US4395562A
- Status: Granted
- Kind: A
- Application number: 06/366,421
- Filed: 1982-04-07
- Granted: 1983-07-26
- Earliest claimed: 1981-04-15
- Assignees: Chisso Corporation
- Inventors: Terui Yohji; Koga Isao; Ohtake Nobumasa
- Web page: https://patentgrep.com/patent/US4395562A

## CPC

- C07F 7/14: Preparation thereof from {optionally substituted} halogenated silanes and hydrocarbons {hydrosilylation reactions}
- C07F 7/1804: {Compounds having Si-O-C linkages (Si-O-acyl linkages C07F7/1896)}
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)

## 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.

## Claims

### Claim 1

A vinylidene silicone compound represented by the general formula ##STR26## where R is an alkyl group of 1 to 7 carbon atoms or a hydrogen atom; each of R' and R" is an alkyl of 1 to 7 carbon atoms; each of X and X' is a chlorine atom or an alkoxy group of 1 to 4 carbon atoms; and each of n and m is an integer of 0 to 3.

### Claim 2

A process for preparing a vinyldiene silicone compound represented by the general formula ##STR27## where R is an alkyl group of 1 to 7 carbon atoms or a hydrogen atom; each of R' and R" is an alkyl group of 1 to 7 carbon atoms; each of X and X' is a chlorine atom or an alkoxy group of 1 to 4 carbon atoms; and each of n and m is an integer of 0 to 3, which comprises reacting an alkyl allene represented by the general formula ##STR28## where R is as defined above, with a disilane represented by the general formula R'.sub.n X.sub.3-n Si.sub.2 R".sub.m X'.sub.3-m where R', R", X, X', n and m are as defined above, in the presence of a phosphine complex of a transition metal.

### Claim 3 (depends on 2)

The process according to claim 2, wherein the reaction temperature is from 50.degree. to 200.degree. C.

### Claim 4 (depends on 2)

The process according to claim 2, wherein the amount of the phosphine complex of the transition metal is from 0.01 to 5.0 molar % based on the disilane.