Issue 5, 2001

A single step synthesis of 2-phenylpyridine from acetophenone, ethanol, formaldehyde and ammonia over molecular sieve catalystsIICT Communication No. 4718.

Abstract

The vapor phase cyclization of acetophenone, ethanol, formaldehyde and ammonia to 2-phenylpyridine was carried out over HZSM-5, Hβ,HY and modified HY catalysts at 400 °C. The catalytic activity followed the order: HZSM-5 < Hβ < HY. The influence of catalyst modification, temperature, molar ratio of feed, weight hour space velocity and time on stream on the catalytic activity and selectivity for the cyclization product are investigated. The effect of pore size of the catalyst and acidity of modified zeolites on cyclization activity is discussed. The maximum yield of 2-phenylpyridine was obtained over 3 wt% cobalt-modified HY zeolite.

Article information

Article type
Paper
Submitted
12 Jul 2001
First published
07 Sep 2001

Green Chem., 2001,3, 233-237

A single step synthesis of 2-phenylpyridine from acetophenone, ethanol, formaldehyde and ammonia over molecular sieve catalysts

D. V. Gopal and M. Subrahmanyam, Green Chem., 2001, 3, 233 DOI: 10.1039/B106183F

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