Nickel and cobalt phosphides as effective catalysts for oxygen removal of dibenzofuran: role of contact time, hydrogen pressure and hydrogen/feed molar ratio
作者:A. Infantes-Molina、E. Gralberg、J. A. Cecilia、Elisabetta Finocchio、E. Rodríguez-Castellón
DOI:10.1039/c5cy00282f
日期:——
catalytic activity of nickel and cobalt phosphides, with a metal loading of 5 wt.%, supported on silica was investigated in the hydrodeoxygenation reaction (HDO) of dibenzofuran (DBF) as a model oxygenated compound at different contact times, H2 pressures and H2/DBF molar ratios. The aim of the study was to understand the mechanism of the reaction and to study the impact of H2 pressure and H2/DBF molar
dpk. A similar attack of water on dpk was observed in the compound cis-[ReOBr2(dpk·OH)]·2(dpkH+Br−), which was formed from dpk and [ReOBr3(PPh3)2] in acetone. The reaction of zpy with B in acetonitrile produced the complexes [ReIIIX3(zpy)(PPh3)], but in methanol as solvent the compounds [ReOX2(zpyH)(PPh3)] were isolated, where zpyH coordinates bidentately as the monoanionic ligand [C6H5(HC-O)C5H4N]−.
二-2-吡啶基酮(dpk),2-苯甲酰基吡啶(zpy)和2-羟基二苯甲酮(Hbp)与[Re(CO)5 Cl](A)和反式-[ReOX 3(PPh 3)2 ]的反应(B,X = Cl,Br)被研究。从A与dpk在甲醇中的反应中分离出复合物fac- [Re(CO)3(dpk·OCH 3)] 。单阴离子三齿螯合物dpk·OCH 3是由甲醇在dpk的羰基碳原子上的亲核攻击而形成的。在化合物顺式-[ReOBr 2(DPK·OH)]·2(dpkH +溴- ),将其从DPK和[ReOBr形成3(PPH 3)2 ]在丙酮中。zpy与B在乙腈中的反应生成了络合物[Re III X 3(zpy)(PPh 3)],但在甲醇溶剂中分离了化合物[ReOX 2(zpyH)(PPh 3)],其中zpyH呈双齿状作为单阴离子配体[C 6 H 5(HC-O)C 5 H 4 N] -。以A为起始原料的复数fac- [Re(C
Nametkin; Pokrowsskaja, Zhurnal Obshchei Khimii, 1938, vol. 8, p. 699,702
作者:Nametkin、Pokrowsskaja
DOI:——
日期:——
Chromow, Zhurnal Obshchei Khimii, 1937, vol. 7, p. 350,351
作者:Chromow
DOI:——
日期:——
Making mercury-photosensitized dehydrodimerization into an organic synthetic method. Vapor-pressure selectivity and the behavior of functionalized substrates