The invention relates to a method for the partial electrochemical hydrogenation of alkynes of chemical formula (I) to alkenes, (I) wherein R and R' are selected from inorganic and/or organic residues, wherein the compound of chemical formula (I) is hydrogenated on a copper-containing ...
Selective hydrogenation of alkynes to alkenes facilitated by Pd nanocatalysts is an important chemical transformation. To enhance alkene selectivity, small molecular ligands have often been used to modify catalytic active centers. Though a variety of ligands has been employed, their effects on the ...
Reduction of Fluorenone to Fluorenol Huisgen Cycloaddition: Mechanism & Overview Azide-Alkyne Huisgen Cycloaddition Reactions Intramolecular Diels-Alder Cycloaddition Reactions Catalytic Hydrogenation Reaction & Mechanism 4:04 Hydrogenation of Alkenes | Definition, Mechanism & Examples 4:48 Hydrogenation...
Pd(0)–polyethyleneimine complex as a partial hydrogenation catalyst of alkynes to alkenes Molecular Catalysis A: Chemical, 307, 77 (2009).–polyethyleneimine complex as a partial hydrogenation catalyst of alkynes to alkenes[J] . Shigeki Mori,... S Mori,T Ohkubo,T Ikawa,... - 《Journal of ...
The selective hydrogenation of alkynes to alkenes is widely applied in the chemical industry; nevertheless, achieving highly selective hydrogenation with high catalytic activity is considerably challenging. Herein, ultrafine PdCu bimetallic nanoparticles encapsulated by high-surface-area mesoporousα-Al2O3 wer...
A novel Fe-catalyzed transfer hydrogenation of alkynes to corresponding alkenes using formic acid as hydrogen donor is developed.doi:10.1002/chin.201236032GerritLeibniz-Inst.WienhoeferLeibniz-Inst.FelixLeibniz-Inst.A.Leibniz-Inst.WesterhausLeibniz-Inst....
Although cobalt-based transfer hydrogenations of alkynes and alkenes with H3N∙BH3 have been reported65,66, the dihydrogenation reaction occurs selectively at the C=N bond of the N-heterocyclic ring (3k, 3l, and 3v). This cobalt-based catalytic reaction is not limited only to quinolines,...
Except perhaps with [HCo(CN) 5 ] 3 , it is clear that for hydrogenation an alkene or alkyne must first be co-ordinated to the metal centre of the catalytic complex. It is a familiar observation [1] in heterogeneous hydrogenation that alkynes are generally more strongly co-ordinated than a...
A composition and method for preparation of a catalyst for the liquid phase selective hydrogenation of alkynes to alkenes with high selectivity to alkenes relative to alkanes, high alkyne conversion, and sustained catalytic activity comp... MM Johnson,ER Peterson,SC Gattis - US 被引量: 22发表: ...
Hydrogenation of Alkenes. Hydrogenation of Alkynes. Hydrogenation of Aldehydes and Ketones. Preparation of Amines by Reductive Alkylation. Hydrogenation of Nitriles. Hydrogenation of Imines, Oximes, and Related Compounds. Hydrogenation of Nitro, Nitroso, and Related Compounds. Hydrogenation of Carbo...