Preparation of trimethylsilyl cyanide

Details Preparation of trimethylsilyl cyanide Preparation of trimethylsilyl cyanide

1981-04-23

1982-05-04

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 710

Patent

active

043283519

ABSTRACT:
A process for the preparation of trimethylsilyl cyanide comprising reacting trimethylsilyl chloride with an approximately equimolar amount of an alkali metal cyanide in the presence of a catalytic amount of a heavy metal cyanide and in the presence of an aprotic solvent with a boiling point above about 150.degree. C., at a temperature between about 130.degree. and 250.degree. C. Advantageously the reaction temperature is between about 160.degree. and 220.degree. C., the alkali metal cyanide is sodium cyanide or potassium cyanide, the heavy metal cyanide is copper(I) cyanide, copper(II) cyanide, zinc cyanide or a complex compound of one of them with an alkali metal cyanide and is employed in about 1 to 8 mol % relative to the alkali metal cyanide, and the mixture of aprotic solvent, heavy metal cyanide and alkali metal chloride remaining in the reaction vessel when the reaction has ended is used directly as the reaction medium for a further batch.

REFERENCES:
patent: 3032575 (1962-05-01), Freitag et al.
"J.A.C.S.", 80, 8/58, pp. 4151-4153.
Noll, "Chemistry and Technology of Silicones", Academic Press, N.Y. (1968), p. 113.

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