Process for the production of 3-picoline

Details Process for the production of 3-picoline Process for the production of 3-picoline

1983-05-11

1984-11-06

Bond, Robert T.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502167, 502170, 502174, 502200, 502202, 502208, 502218, 502224, C07D21308, C07D21310

Patent

active

044813619

ABSTRACT:
Process for the production of 3-picoline wherein a first educt, consisting of acetaldehyde and/or at least one acetaldehydeacetal and/or crotonaldehyde, is reacted with a second educt, consisting of formaldehyde and/or at least one formaldehydeacetal and/or hexamethylenetetramine, in a liquid, aqueous phase at a temperature of 180.degree. to 280.degree. C. in a closed vessel. The reaction is conducted in the presence of ammonia and/or ammonium ions. The reaction is also conducted in the presence of at least one water-soluble alkali metal salt of an inorganic and/or organic acid or acids which provides an anion or anions of an inorganic and/or organic acid or acids, which at 20.degree. C. have an acid dissociation constant of 10.sup.6 to 10.sup.-12.

REFERENCES:
patent: 4370481 (1983-01-01), Dinkel

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