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Synthesis of benzylpyridine using copper zeolite and irradiation – a modified method
Author(s) -
Telvekar Vikas N,
Akamanchi Krishnacharya G,
Chaudhari Bapu A
Publication year - 1999
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199908)74:8<812::aid-jctb108>3.0.co;2-r
Subject(s) - zeolite , copper , yield (engineering) , catalysis , irradiation , chemistry , thermal , chloride , copper chloride , inorganic chemistry , nuclear chemistry , chemical engineering , materials science , organic chemistry , metallurgy , thermodynamics , physics , nuclear physics , engineering
The rearrangement of benzylpyridinium chloride to 2‐ and 4‐benzylpyridines (Ladenberg rearrangement) using copper(II)‐exchanged zeolite‐A as a catalyst has been investigated under combined thermal and irradiation conditions. The reaction occurs at a lower temperature (∼160 °C) than the usual temperature of 220 °C. A good yield of a mixture of 2‐ and 4‐benzylpyridines was obtained. Moreover, this catalyst could be recycled. The effects of various parameters have been studied and it is concluded that this modified method holds promise for commercialisation. © 1999 Society of Chemical Industry