Patent EP0405560A2 successfully refreshed from Google Patents.
EP0405560A2
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Preparation of tertiary-hydrocarbylsilyl compounds
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1990-06-28
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Granted: —
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Expires: 2010-06-28
Abstract
Abstract The present invention relates to a method for the preparation of tertiary-hydrocarbylsilyl compounds through a Grignard reaction. A Grignard reagent of formula RMgX, in which R is a tertiary-hydrocarbyl group and X is a halogen atom, is reacted with a silicon compound of formula R¹ a SiX 4-a ; where R¹ is a substituted or unsubstituted monovalent hydrocarbon group and a is an integer with a value of zero to three. The process is ran in the presence of a catalytic quantity of a cyano compound or a thiocyanate compound.
Inventors
- 👤 Akihiko Shirahata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:40
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0825; C07F7/0827; C07F7/12; C07F7/121; C07F7/122
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
78 words
A method for preparation of tertiary-hydrocarbylsilyl compounds comprising reacting a Grignard reagent of formula R Mg X ; wherein R is a tertiary-hydrocarbyl group and X is a halogen atom; with a silicon compound of formula R¹ a SiX 4-a ; wherein R¹ is a substituted or unsubstituted monovalent hydrocarbon group, X is a halogen atom, and a is an integer with a value of zero to three; in the presence of a cyano compound or thiocyanate compound.
Claim 2
Independent Claim
78 words
A method for preparation of tertiary-hydrocarbylsilyl compounds comprising reacting a Grignard reagent of formula R Mg X ; wherein R is a tertiary-hydrocarbyl group and X is a halogen atom; with a silicon compound of formula R¹ a SiX 4-a ; wherein R¹ is a substituted or unsubstituted monovalent hydrocarbon group, X is a halogen atom, and a is an integer with a value of zero to three; in the presence of a cyano compound or thiocyanate compound.
Claim 3
Dependent Claim
19 words
A method according to Claim 1, where R is a tertiary- alkyl group and X is a chlorine atom.
Claim 4
Dependent Claim
28 words
A method according to Claim 1, where the cyano compound is selected from a group consisting of silver cyanide, copper cyanide, mercury cyanide, trimethylsilyl cyanide, and tributyltin cyanide.
Claim 5
Dependent Claim
28 words
A method according to Claim 1, where the thiocyanate compound is selected from a group consisting of copper thiocyanate, silver thiocyanate, calcium thiocyanate, sodium thiocyanate, and tetrabutylammonium thiocyanate.
References Cited (Backward Citations)
No citation records indexed.
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