| 摘要 |
PURPOSE:To readily obtain the titled silanes useful as a raw material producing organic chemicals, such as an intermediate for an organosilicon products and agricultural chemicals in high purity and high yield, by reacting a specific silanols with phosgene in the presence of an amide. CONSTITUTION:(A) Silanols expressed by the formula (R1 represents 1-18C alkyl; R2 and R3 represent 1-3C alkyl) (e.g. t-butyldimethylsilanol) are reacted with (C) phosgene in the presence of (B) a tertiary amide, for example at 20-70 deg.C. As for the component (B), N,N-dimethylformamide or N-methyl-N- phenylformamide is preferably used.
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