Hydrogenation of dienes containing a system of conjugated double bonds on a skeletal Co-catalyst☆

Autor:	Ye.F. Litvin, LK Freidlin, R. N. Shafran
Rok vydání:	1965
Předmět:	chemistry.chemical_classification Olefin fiber Double bond Hydrogen General Engineering chemistry.chemical_element Conjugated system Medicinal chemistry Catalysis Adsorption chemistry Organic chemistry Selectivity Carbon
Zdroj:	Petroleum Chemistry U.S.S.R.. 4:243-251
ISSN:	0031-6458
DOI:	10.1016/0031-6458(65)90087-0
Popis:	1. 1. It has been found that, in the presence of a skeletal Co-catalyst dienes are hydrogenated at almost the same rate, irrespective of the degreee of subsititution of carbon atoms at the double bonds. The specific activity of the catalyst in these processes is one order of magnitude lower than of skeletal Ni. 2. 2. Dienes with a high degree of selectivity are hydrogenated on Co to olefins. Addition of hydrogen in the 1,4 position is very slightly catalyzed. 3. 3. Hydrogenation of a monosubstituted n-olefin is accompanied by a transfer of the double bond. Di-substitutd olefin does not isomerize in practice. 4. 4. Dienes extract 10–20 times less adsorbed hydrogen from skeletal Co than from Ni.
Databáze:	OpenAIRE
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