Silanones and Silanethiones from the Reactions of Transient Silylenes with Oxiranes and Thiiranes in Solution. The Direct Detection of Diphenylsilanethione.
作者:Svetlana S. Kostina、William J. Leigh
DOI:10.1021/ja107881p
日期:2011.3.30
basis of its second order decay kinetics and absolute rate constants for reaction with methanol, tert-butanol, acetic acid, and n-butyl amine, for which values in the range of 1.4 × 10(8) to 3.2 × 10(9) M(-1) s(-1) are reported. The experimental rate constants for decay of the SiMe(2)-epoxide and -PrS complexes indicate free energy barriers (ΔG(‡)) of ca. 8.5 and ≤7.1 kcal mol(-1) for the rate-determining
Mechanistic Study on the Photochemical Conversion of Disilanyliron(II) Complexes to Monosilyliron(II) Complexes
作者:Hiromi Tobita、Keiji Ueno、Hiroshi Ogino
DOI:10.1246/bcsj.61.2797
日期:1988.8
Photolysis of a C6D6 solution of CpFe(CO)2SiMe2SiMe3 (Cp=η5-C5H5) or (MeCp)Fe(CO)2SiMe2SiMe3 (MeCp=η5-C5H4Me) resulted in the formation of monosilyl derivative, CpFe(CO)2SiMe3 or (MeCp)Fe(CO)2SiMe3 in 64 or 59% yield, respectively, together with small quantities of ferrocene and Cp2Fe2(CO)4 or their methylated derivatives. The yield of CpFe(CO)2SiMe3 increased to 88% when the photolysis was carried
Nickel-Catalyzed Reductive [4 + 1] Sila-Cycloaddition of 1,3-Dienes with Dichlorosilanes
作者:Liangliang Qi、Qiu-Quan Pan、Xiao-Xue Wei、Xiaobo Pang、Zitong Liu、Xing-Zhong Shu
DOI:10.1021/jacs.3c04209
日期:2023.6.21
selection of well-defined sila-synthons. Herein, we demonstrate the potential of chlorosilanes, which are industrial feedstock chemicals, for this type of reaction under reductive nickel catalysis. This work extends the scope of reductive coupling from carbocycle to silacarbocycle synthesis and from single C–Si bond formation to sila-cycloaddition reactions. The reaction proceeds under mild conditions