Oxidation of Carbon−Silicon Bonds: The Dramatic Advantage of Strained Siletanes
摘要:
Herein we report on the use of siletanes as substrates for the oxidation of carbon-silicon bonds. These tetraalkylsilanes are easy to handle yet susceptible to rapid ring opening and oxidation upon exposure to aqueous fluoride and peroxide. This combination of stability and reactivity presents many practical benefits, including compatibility with silicon protecting groups and electron-rich aromatic rings.
Steady state and time-resolved spectroscopic studies of the photochemistry of 1-arylsilacyclobutanes and the chemistry of 1-arylsilenes
作者:William J Leigh、Rabah Boukherroub、Christine J Bradaric、Christine C Cserti、Jennifer M Schmeisser
DOI:10.1139/v99-114
日期:1999.6.1
constants for reaction of 1-phenylsilene and 1-methyl-1-phenylsilene with water, methanol, tert-butanol, and acetic acid in acetonitrile solution have been determined, and are compared to those of 1,1-diphenylsilene under the same c...
Ring Expansion of Silacyclobutanes with Allenoates to Selectively Construct 2- or 3-(<i>E</i>)-Enoate-Substituted Silacyclohexenes
作者:Xiaoxiao Tang、Yan Zhang、Yulang Tang、Yi Li、Jiajing Zhou、Duyang Wang、Lu Gao、Zhishan Su、Zhenlei Song
DOI:10.1021/acscatal.1c05831
日期:2022.5.6
structural diversity of silacycles has been largely limited due to the lack of general synthetic methods. Here, we report an efficient synthesis of exo-cyclic enoate-substituted silacyclohexenes by the ringexpansion of silacyclobutanes with allenoates. The reaction proceeds with two regioselectivities during Si–C bond insertion. In the presence of the Pd/PR3 catalyst, unsubstituted allenoates undergo β, γ-insertion
Herein, we report the first rhodium-catalyzed hydrolytic cleavage of the silicon–carbon bond in silacyclobutanes using water as the reactant. A series of silacyclobutanes could be employed in this reaction in the presence of the Rh/BINAP complex, resulting in the corresponding silanols in good yields. Additionally, a chiral 1,1,4,4-tetraaryl-2,3-O-isopropylidene-l-threitol-derived phosphoramidite ligand
Oxidation of Carbon−Silicon Bonds: The Dramatic Advantage of Strained Siletanes
作者:James D. Sunderhaus、Hubert Lam、Gregory B. Dudley
DOI:10.1021/ol035695y
日期:2003.11.1
Herein we report on the use of siletanes as substrates for the oxidation of carbon-silicon bonds. These tetraalkylsilanes are easy to handle yet susceptible to rapid ring opening and oxidation upon exposure to aqueous fluoride and peroxide. This combination of stability and reactivity presents many practical benefits, including compatibility with silicon protecting groups and electron-rich aromatic rings.