Application of Bulky NHC–Rhodium Complexes in Efficient S–Si and S–S Bond Forming Reactions
作者:Małgorzata Bołt、Patrycja Żak
DOI:10.1021/acs.inorgchem.1c02160
日期:2021.12.6
methodologies are based on new rhodium complexes containing bulky N-heterocyclic carbene (NHC) ligands that turned out to be efficient catalysts in thiol and thiol–silane coupling reactions. These green protocols, which use easily accessible reagents, allow obtaining compounds containing S–Si and S–S bonds in solvent-free conditions. Additionally, preliminary tests on coupling of mono- and octahydro-substituted
Metal-free transfer hydrogenation of olefins via dehydrocoupling catalysis
作者:Manuel Pérez、Christopher B. Caputo、Roman Dobrovetsky、Douglas W. Stephan
DOI:10.1073/pnas.1407484111
日期:2014.7.29
species that mimics that of transitionmetalcomplexes. In this report, the Lewis acidic phosphonium salt [(C6F5)3PF][B(C6F5)4] 1 is shown to catalyze the dehydrocoupling of silanes with amines, thiols, phenols, and carboxylic acids to form the Si-E bond (E = N, S, O) with the liberation of H2 (21 examples). This catalysis, when performed in the presence of a series of olefins, yields the concurrent formation
近年来主族化学的一个重大进展是出现了模拟过渡金属配合物的主族物种的反应性。在这份报告中,路易斯酸性鏻盐 [(C6F5)3PF][B( )4] 1 显示出催化硅烷与胺、硫醇、酚和羧酸的脱氢偶联形成 Si-E 键 (E = N, S, O) 释放 H2(21 个例子)。这种催化,当在一系列烯烃的存在下进行时,会同时形成烯烃的脱氢偶联和转移氢化产物(30 个实施例)。这种反应性为烯烃加氢的无金属催化提供了一种策略。实验和密度泛函理论计算提出并支持了这两种催化反应的机制。
Lapkin,I.I.; Novichkova,A.S., Journal of general chemistry of the USSR, 1971, vol. 41, p. 1278 - 1279