SYNTHESIS OF 3,5-LUTIDINE FROM PROPIONALDEHYDE OVER MODIFIED ZSM-5 CATALYSTS

Authors
KULKARNI SJ RAO RR RAO YVS SUBRAHMANYAM M RAO AVR
Citation
Sj. Kulkarni et al., SYNTHESIS OF 3,5-LUTIDINE FROM PROPIONALDEHYDE OVER MODIFIED ZSM-5 CATALYSTS, Applied catalysis. A, General, 136(1), 1996, pp. 1-6
Citations number
21
Categorie Soggetti
Chemistry Physical","Environmental Sciences
Journal title
Applied catalysis. A, General → ACNP
ISSN journal
0926860X
Volume
136
Issue
1
Year of publication
1996
Pages
1 - 6
Database
ISI
SICI code
0926-860X(1996)136:1<1:SO3FPO>2.0.ZU;2-K
Abstract
The reaction of propionaldehyde, formaldehyde and ammonia was carried out over modified H-ZSM-5 catalysts. Typically over H-ZSM-5 (Si/Al = 1 50), at 400 degrees C, the yield of 3,5-lutidine was 63.1 wt.-% at 66. 2% conversion of propionaldehyde. The cation effect was observed in th e increase of collidines in the product. Our studies have established that useful substituted pyridines can be synthesized from C-1-C-4 alde hydes and alcohols in the presence of ammonia via dehydrocyclization a nd dehydrogenation.