Method for the preparation of a cycloalkyl silane compound

Details Method for the preparation of a cycloalkyl silane compound Method for the preparation of a cycloalkyl silane compound

1989-07-17

1990-09-18

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

556449, B01J 1908

Patent

active

049576070

ABSTRACT:
Cycloalkyl silane compounds such as cyclohexyl methyl dichlorosilane can be efficiently prepared by the photochemically induced hydrosilylation reaction. For example, an equimolar mixture of cyclohexene and methyl dichlorosilane with admixture of a catalytic amount of a platinum catalyst, which is an alcohol complex of chloroplatinic acid, is irradiated at a temperature of 70.degree. C. with ultraviolet light so that the hydrosilylation reaction takes place and proceeds almost to completeness without deactivation of the platinum catalyst to give the desired product in a yield of 90% or even higher. Unexpectedly, the efficiency of the reaction can be greatly increased when the platinum catalyst is prepared by heating a solution of chloroplatinic acid in 2-ethylhexyl alcohol at 50.degree. to 80.degree. C. for at least 4 hours.

REFERENCES:
patent: 4038302 (1977-07-01), Reichel
patent: 4398010 (1983-08-01), Adkins
patent: 4450283 (1984-05-01), McAfee
patent: 4530879 (1985-07-01), Drahnak
patent: 4600484 (1986-07-01), Drahnak

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