Germyl and silyl derivatives of phenol and thiophenol

Abstract
Phenol reacts with disilyl sulphide to give phenyl silyl ether in high yield. Potassium phenoxide reacts with germyl bromide to give phenyl germyl ether; similarly, silyl and germyl bromides yield the corresponding sulphides with potassium benzenethiolate. The i.r. and n.m.r. spectra of these new compounds are reported and discussed. Their reactions with boron trifluoride and boron trichloride are described: these included cleavage, adduct formation, and acid-catalysed disproportionation.

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