Process for the preparation of 2,3,5-collidine and 2-ethyl-5-met

Details Process for the preparation of 2,3,5-collidine and 2-ethyl-5-met Process for the preparation of 2,3,5-collidine and 2-ethyl-5-met

1998-06-12

2000-08-29

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546250, C07D21306, C07D21308, C07D21314

Patent

active

061111139

ABSTRACT:
2,3,5-Collidine and 2-ethyl-5-methylpyridine are prepared in high yields at the same time by reacting methacrolein and methyl ethyl ketone with ammonia in a gas phase in the presence of a catalyst which comprises silica-alumina containing at least one element selected from the group consisting of cobalt, zinc, cadmium, thallium and lead.

REFERENCES:
Patent Abstracts of Japan, vol. 97, No. 2, Feb. 28, 1997 & JP 08 259537 A, Oct. 8, 1996 * abstract *.
Patent Abstracts of Japan, vol. 97, No. 1, Jan. 31, 1997 & JP 08 245589 A, Sep. 24, 1996 * abstract *.
Patent Abstracts of Japan, vol. 97, No. 9, Sep. 30, 1997 & JP 09 124602 A, May 13, 1997 * abstract *.
Patent Abstracts of Japan, vol. 10, No. 214, Jul. 25, 1986 & JP 61 053265 A, Mar. 17, 1996 * abstract *.
H. Beschke et al., "Chemiker-Zeitung" vol., 101, No. 9, Sep. 1977, pp. 377-384, XP-002076316.

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