Investigation of the reduction of aceto- and propiophenone in the presence of Co and Ni catalysts: Influence of poisons View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1969-10

AUTHORS

L. Kh. Freidlin, N. V. Borunova, S. S. Daniélova, A. S. Nekrasov, L. I. Gvinter

ABSTRACT

ConclusionsIn the presence of a Co catalyst at temperatures up to 120° and pressures up to 80 atm, aceto-and propiophenone are reduced only at the carbonyl group; there are no products of hydrogenation of the aromatic ring in the catalyzate.The alkylphenylcarbinol formed undergoes hydrogenolysis at the C-OH bond on a Co catalyst even at room temperature. At 100° and 80 atm, an aliphatic-aromatic ketone is entirely reduced to the hydrocarbon.In the presence of an Ni-Al2O3 catalyst, reduction of the C=O group of the ketone and hydrogenolysis of the C-OH bond of the alkylphenylcarbinol predominate, but the aromatic ring is also partially hydrogenated.Hydrogenation and hydrogenolysis proceed on different portions of the active surface: selective reduction of the ketone to an alkylphenylcarbinol can be achieved by partial poisoning of a Co or Ni catalyst with cadmium (or lead). More... »

PAGES

2137-2140

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00906635

DOI

http://dx.doi.org/10.1007/bf00906635

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1036375021


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