EFFECT OF THE SURFACE-AREA OF PLATINUM ON THE ACTIVITY OF A BIFUNCTIONAL ALUMINOPLATINUM CATALYST IN THE SYNTHESIS OF ALKYLIMIDAZOLES FROM DIAMINES AND CARBONYL ACIDS

Authors
GITIS KM RAEVSKAYA NI ZAITSEV AV BOROVKOV VY KOZAN SB ISAGULYANTS GV
Citation
Km. Gitis et al., EFFECT OF THE SURFACE-AREA OF PLATINUM ON THE ACTIVITY OF A BIFUNCTIONAL ALUMINOPLATINUM CATALYST IN THE SYNTHESIS OF ALKYLIMIDAZOLES FROM DIAMINES AND CARBONYL ACIDS, Bulletin of the Russian Academy of Sciences, Division of Chemical Sciences, 41(9), 1992, pp. 1547-1550
Citations number
8
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Russian Academy of Sciences, Division of Chemical Sciences → ACNP
ISSN journal
10635211
Volume
41
Issue
9
Year of publication
1992
Part
1
Pages
1547 - 1550
Database
ISI
SICI code
1063-5211(1992)41:9<1547:EOTSOP>2.0.ZU;2-V
Abstract
An investigation has been conducted into the effect of the acid and de hydrogenating functions of an aluminoplatinum catalyst on the synthesi s of 2-methylimidazole from ethylenediamine and acetic acid. It has be en established that formation of the intermediate 2-methylimidazoline involves the acid Al2O3 centers and its rate of formation is greater t han the rate of its subsequent dehydrogenation to 2-methylimidazole on the Pt centers. The symbatic nature of the variations in the 2-methyl imidazole yield and the surface area of the platinum in the aluminopla tinum catalyst has been demonstrated.