Reactivity of isomeric pyridinecarboxaldehydes in catalyic hydrogenation

Autor:	V. V. Stonkus, M. Shimanska, L. Ya. Leitis, M. B. Fleisher, D. P. Yansone
Rok vydání:	1994
Předmět:	inorganic chemicals chemistry.chemical_classification Hydrogen Organic Chemistry chemistry.chemical_element Photochemistry Oxygen Aldehyde Catalysis CNDO/2 chemistry Molecule Reactivity (chemistry) Carbon
Zdroj:	Chemistry of Heterocyclic Compounds. 30:934-937
ISSN:	1573-8353 0009-3122
DOI:	10.1007/bf01165032
Popis:	It has been established by a quantum-chemical method (CNDO/2) that there are two possible mechanisms occurring in the vapor phase hydrogenation of 2-, 3-, and 4-pyridinecarboxaldehydes in the presence of a copper-chromium catalyst at 180-300°C. One of these involves a donor-acceptor interaction of aldehyde with catalyst and the addition of hydrogen to the carbon atom of the carbonyl group at the first stage. The second possible mechanism is the synchronous addition of hydrogen to the carbon and oxygen of the carbonyl group of a weakly bound a aldehyde molecule with an unchanged electronic structure.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1059ab662a121e0d65cf1995c7e61464 https://doi.org/10.1007/bf01165032 Zobrazit plný text záznamu Full text from SpringerLink