PROCEDURES FOR THE PREPARATION OF SILANOLS

Two procedures are described for the preparation of silanols and silanediols from the corresponding chlorosilanes. The first procedure, a two-phase hydrolysis-extraction process, is particularly convenient and suited to the preparation of a wide range of mono-silanols. Hydrolysis of dichlorosilanes by this procedure gives varied results depending on the structure of the dichlorosilane and specific reaction conditions. The second procedure, a modification of a published procedure, is especially beneficial for the preparation of silanols and silanediols prone to undergo self-condensation.