Process for producing 2-quinoxalinols

Details Process for producing 2-quinoxalinols Process for producing 2-quinoxalinols

1984-05-18

1986-10-28

Berch, Mark L.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C07D24144, C07B 100

Patent

active

046200037

ABSTRACT:
The present invention relates to a process for preparing a 2-quinoxalinol compound, in the free form, of the following formula (II); ##STR1## wherein R is hydrogen, halogen or a trifluoromethyl group, which comprises reducing a 2-quinoxalinol-4-oxide compound, in the free form, of the following formula (I); ##STR2## wherein R is a defined above, with hydrazine in the presence of a Raney catalyst and a hydroxide of an alkali metal or an alkaline earth metal or ammonium hydroxide.

REFERENCES:
Moore et al. J. Org. Chem. 23, 1504 (1958).
Elina I, Chem. Abs. 59, 12807(c).
Elina II, Chem. Abs. 52, 20186(f).
Elina III, Chem. Abs. 58, 9059(e).
Fusco et al, Chemical Abstract, vol. 61, 4352b (1964).

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