Process for the production of substituted pyridine (C)

Details Process for the production of substituted pyridine (C) Process for the production of substituted pyridine (C)

1977-09-06

1979-10-16

Randolph, John D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 37, 544238, 544360, 546159, 546251, C07D21308

Patent

active

041714440

ABSTRACT:
Pyridines substituted in the 2- and 6-positions by an aromatic or heteroaromatic group are prepared by reacting an aromatic or heteroaromatic ketone having at least one reactive methylene group adjacent to the keto group with an aliphatic aldehyde and ammonia in the presence of a dehydrating and dehydrogenating catalyst at a temperature of about 250.degree. to 550.degree. C.

REFERENCES:
patent: 2877228 (1959-03-01), Mahan
patent: 3898177 (1975-08-01), Beschke et al.
patent: 3917542 (1975-11-01), Beschke et al.
patent: 3932421 (1976-01-01), Minato et al.
patent: 3960766 (1976-06-01), Beschke et al.
Vereshchagin et al., Russian Chemical Reviews, vol. 30, pp. 426 to 429 (1961).
Krohnke, Synthesis, pp. 1-24 (1976).

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