The synthesis of β- and γ-hydroxy- and keto-silanes is described, together with that of their carbon analogues. Unlike the α-isomers, the hydroxysilanes do not rearrange to silyl ethers, and the ultraviolet spectra of the silyl ketones is essentially the same as those of the carbon analogues, and unlike that of α-silyl ketones.β-Silyl ketones have a carbonyl-stretching frequency midway between that of ordinary ketones and α-silyl ketones. These effects are discussed.
本文描述了β-和γ-羟基和酮基
硅烷的合成,以及它们的碳类似物的合成。与α异构体不同,羟基
硅烷不会重排成
硅醚,
硅酮的紫外光谱与碳类似物基本相同,而不同于α-
硅酮。β-
硅酮的羰基伸缩频率介于普通酮和α-
硅酮之间。对这些效应进行了讨论。