Patent ID: 7847116

Claim:
A method of manufacturing an organosilicon compound of general formula (1): where, R 1 , R 2 , R 3 , and R 4 independently represent alkyl groups with 1 to 4 carbon atoms; R 5 represents an alkylene group with 1 to 6 carbon atoms; R 6 , R 7 , R 8 , and R 9 independently represent a hydrogen atom, an alkyl group with 1 to 4 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms; R 10 represents a univalent hydrocarbon group; Y represents an alkoxy group having from 1 to 4 carbon atoms; n is an integer from 1 to 4; and m is an integer from 1 to n, said method being characterized by causing a reaction between a compound of general formula (2): where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are the same as defined above, and X designates a halogen atom, and an active metal or a metalloorganic compound of general formula (3): R 11 MX (3) where R 11 is a univalent hydrocarbon group, M is a bivalent metal, and X is a halogen atom, thus preparing a Grignard compound of general formula (4): where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , M, and X are the same as defined above, and then causing a reaction between the obtained Grignard compound and an organosilicon compound of general formula (5): Y n SiR 10 4-n (5) where Y, R 10 , and n are the same as defined above.