Preparation of alkyl(amino)dialkoxysilanes

Details Preparation of alkyl(amino)dialkoxysilanes Preparation of alkyl(amino)dialkoxysilanes

1997-12-23

2000-09-05

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C07F 710

Patent

active

061145580

ABSTRACT:
Alkyl(amino)dialkoxysilanes are prepared by anhydrously reacting stoichiometric amounts of an alkoxysilane and an alkylaminomagnesium chloride in a reverse addition process. The alkylamino magnesium chloride is preferably prepared in situ by the reaction of a Grignard reagent (RMX) and an alkylamine in a suitable aprotic solvent, such as tetrahydrofuran. The "alkyl" substituent can be alkyl, arylalkyl or aryl. The reaction can be conducted in the temperature range of from 25.degree. C. to 75 .degree. C., without a catalyst, and the aprotic solvent is recovered for re-use in the process.

REFERENCES:
patent: 4650891 (1987-03-01), Lennon
patent: 4672135 (1987-06-01), Lennon
patent: 4888436 (1989-12-01), Shiozawa et al.
patent: 5808123 (1998-09-01), Balduf et al.

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