Preparation of a platinum nanoparticle catalyst located near photocatalyst titanium oxide and its catalytic activity to convert benzyl alcohols to the corresponding ethers
nanoparticle catalyst closely located near the surface of titanium oxide, PtNP/TiO2, has been prepared. This catalyst has both the properties of a photocatalyst and a metal nanoparticle catalyst, and acquired environmentally friendly catalytic activity, which cannot be achieved by just one of these catalysts, to afford ethers from benzyl alcohols under the wavelength of 420 nm.
Electro-organic reactions. Part 10. Mechanism of anodic cleavage of dibenzyl ether
作者:Robert Lines、James H. P. Utley
DOI:10.1039/p29770000803
日期:——
A detailed study of the voltammetry, coulometry, and products of the anodic oxidation in acetonitrile of dibenzylether suggests that, contrary to earlier reports, a one-electron oxidation occurs with the first-formed radical cation undergoing irreversible fragmentation. The subsequent chemical reactions are complex but a mechanistic scheme is presented which is consistent with the above and with additional
α-Diimine-Niobium Complex-Catalyzed Deoxychlorination of Benzyl Ethers with Silicon Tetrachloride
作者:Bernard F. Parker、Hiromu Hosoya、John Arnold、Hayato Tsurugi、Kazushi Mashima
DOI:10.1021/acs.inorgchem.9b01784
日期:2019.10.7
niobium complexes serve as catalysts for deoxygenation of benzyl ethers by silicontetrachloride (SiCl4) to cleanly give two equivalents of the corresponding benzyl chlorides, where SiCl4 has the dual function of oxygen scavenger and chloride source with the formation of a silyl ether or silica as the only byproduct. The reaction mechanism has two successive trans-etherification steps that are mediated