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

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

An investigation has been conducted into the effect of the acid and dehydrogenating functions of an aluminoplatinum catalyst on the synthesis of 2-methylimidazole from ethylenediamine and acetic acid. It has been established that formation of the intermediate 2-methylimidazoline involves the acid Al...

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Veröffentlicht in:Bulletin of the Russian Academy of Sciences Division of Chemical Science 1992-09, Vol.41 (9), p.1547-1550
Hauptverfasser: GITIS, KM, RAEVSKAYA, NI, ZAITSEV, AV, BOROVKOV, VY, KOZAN, SB, ISAGULYANTS, GV
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
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Zusammenfassung:An investigation has been conducted into the effect of the acid and dehydrogenating functions of an aluminoplatinum catalyst on the synthesis of 2-methylimidazole from ethylenediamine and acetic acid. It has been established that formation of the intermediate 2-methylimidazoline involves the acid Al2O3 centers and its rate of formation is greater than the rate of its subsequent dehydrogenation to 2-methylimidazole on the Pt centers. The symbatic nature of the variations in the 2-methylimidazole yield and the surface area of the platinum in the aluminoplatinum catalyst has been demonstrated.
ISSN:1063-5211
1573-9171
DOI:10.1007/BF00863569