as well as hydrogen abstraction reactions of (2-cyanoethyl)trimethylsilane were examined. These compounds exhibit high reactivities in free-radical reactions, demonstrating existence of the σπ captodativeeffect.
Cyanoethylation of Trichlorosilane. II. α-Addition
作者:Shunichi Nozakura、Shiro Konotsune
DOI:10.1246/bcsj.29.326
日期:1956.3
Contrary to the case of β-cyanoethylation, α-cyanoethylation of trichlorosilane was found to take place in an autoclave in the presence of either pyridine or platinized asbestos. In the reactions in sealed glass tubes, on the other hand, stainless steel and pyridine, mono- and tetrapyridine nickel chloride, and nickel chloride pyridine hydrochloride complex were effective for the α-addition. An ionic
Organometallic photochemistry photochemistry of some acyclic ketosilanes
作者:Henry G. Kuivila、Perry L. Maxfield
DOI:10.1016/s0022-328x(00)81715-5
日期:1967.10
Photolysis of a series of silyl ketones with the general structure (CH3)3Si(CH2)nCOR with n = 0–4, R = C6H5 and with n = 0–3, R = CH3 has been investigated. When n = 3 or 4 a major course of reaction is the Type II cleavage. When R = CH3 and n = 3 a substantial amount of cyclobutanol formation occurs; none is detected when R = C6H5. If n = 2 and R = C6H5 the only photoreactions established are reductive
具有通式结构的一系列甲硅烷基酮的光解(CH 3)3 SI(CH 2)ñ COR与Ñ = 0-4,R = C 6 H ^ 5,并用Ñ = 0-3,R = CH 3已经调查。当n = 3或4时,反应的主要过程是II型裂解。当R = CH 3且n = 3时,会形成大量的环丁醇。当R = C 6 H 5时,没有检测到。如果n = 2且R = C 6 H 5唯一建立的光反应是还原性烷基化(通过溶剂环己烷)和羰基亚甲基键的裂解。如果R = CH 3,则可以在羰基-亚甲基键的初始裂解的基础上使所有分离出的产物合理化。在惰性溶剂中,n = 1或0的化合物几乎不会发生光化学分解。但是,每种化合物都容易进行光催化水解以形成三甲基硅烷醇和醛或酮。
Protophilic versus silicophilic reactions in β-substituted silanes
作者:Steven L. Jones、Charles J. M. Stirling
DOI:10.1039/c39880001153
日期:——
in β-eliminations mediated by nucleophilic attack at silicon has been measured as a function of nucleophile, leaving group, and α-substituent; in some instances competition between protophilic and silicophilicreactions is observed.