Hydrogen/Deuterium Exchange Reactions of Olefins with Deuterium Oxide Mediated by the Carbonylchlorohydrido- tris(triphenylphosphine)ruthenium(II) Complex
作者:Sunny Kai San Tse、Peng Xue、Zhenyang Lin、Guochen Jia
DOI:10.1002/adsc.201000037
日期:——
properties of several ruthenium, osmium and rhodium hydride complexes for hydrogen/deuterium (H/D) exchange between olefins and deuterium oxide (D2O) were investigated. The most effective catalytic precursor was found to be the carbonylchlorohydridotris(triphenylphosphine)ruthenium(II) complex. Through H/Dexchange between metal hydride and D2O, and reversible olefin insertion into an RuH(D) bond, protons
Zinc salt-catalyzed reduction of α-aryl imino esters, diketones and phenylacetylenes with water as hydrogen source
作者:Guoli Shen、Haojie Liu、Jingchao Chen、Zhenxiu He、Yongyun Zhou、Lin Wang、Yang Luo、Zhimin Su、Baomin Fan
DOI:10.1039/d1ob00155h
日期:——
The zinc salt-catalyzed reduction of α-aryl imino esters, diketones and phenylacetylenes with water as hydrogen source and zinc as reductant was successfully conducted. The presented method provides a low-cost, environmentally friendly and practical preparation of α-aryl amino esters, α-hydroxyketones and phenylethylenes. By using D2O as deuterium source, the corresponding products were obtained in
Selective H/Dexchange at vinyl and methylidene groups of alkenes with D2O was promoted by an iridium catalyst generated in situ from a hydroxoiridium complex and N-mesylbenzamide.
Iridium-Catalyzed Enantioselective CH Alkylation of Ferrocenes with Alkenes Using Chiral Diene Ligands
作者:Takanori Shibata、Tsubasa Shizuno
DOI:10.1002/anie.201402518
日期:2014.5.19
The first catalytic and enantioselective CHalkylation of ferrocene derivatives with various alkenes was achieved. A cationic iridium complex, having a chiral diene ligand, and an isoquinolyl moiety as a directing group are essential for regioselective and enantioselective CHbond activation.