Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethyl

Details Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethyl Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethyl

1985-07-10

1987-04-14

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D213127

Patent

active

046580328

ABSTRACT:
Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine which is characterized by reacting 3,5-lutidine as the starting material with an aliphatic alcohol having 1 to 4 carbon atoms, in the presence of a catalyst for hydrogenation at a temperature of 200.degree. C. or higher.
The above-mentioned 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine are important compounds as intermediates for synthesizing various pharmaceutical chemicals.

REFERENCES:
patent: 3354165 (1967-11-01), Myerly et al.
patent: 3428641 (1969-02-01), Myerly et al.
patent: 3822271 (1974-07-01), Lapporte
Jour. Amer. Chem. Soc., vol. 86, Dec. 5, 1964, pp. 5355-5356.
Yakugaku Zasshi, vol. 101, No. 1, pp. 20-24 (1981).

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