Process for the production of 2-amino-3-hydroxypyridines

Details Process for the production of 2-amino-3-hydroxypyridines Process for the production of 2-amino-3-hydroxypyridines

1976-06-18

1977-12-06

Rotman, Alan L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D21374

Patent

active

040616444

ABSTRACT:
Process for the production of 2-amino-3-hydroxypyridines of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another represent hydrogen or an alkyl group having 1 to 4 carbon atoms, wherein a furan-2-carboxylic acid of formula ##STR2## wherein R.sub.1 and R.sub.2 have the meaning given above, or a derivative thereof, for example a quaternary ammonium salt, an ester, an amide, a halogenide, an amidine salt, an iminoether salt or the nitrile, is reacted at a temperature of between 100.degree. and 300.degree. C in a solvent containing amide groups, in the presence of an acid catalyst, with ammonia.

REFERENCES:
patent: 3579528 (1971-05-01), Haszeldine et al.
Klingsberg, Pyridine and Its Derivatives, Part Three, frontispage, pp. 563 to 564, 566 and 726-727, Interscience Publishers (1962).
Dunlop et al., The Furans, frontispage, pp. 527, 528, 533, 671-673, Reinhold Publishing Corp. NY, (1953).
Aso, Chemical Abstracts, vol. 34, col. 6940 (1940), (abst. of J. Agr. Chem. Soc. Japan 16, pp. 253-264 (1940).
Petersen et al., Chemical Abstracts, vol. 69, abst. No. 59063 a, pp. 5518 to 5519, (1968).

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