Process for the preparation of pure 2-ethylamino-4-nitro-1-alkox

Details Process for the preparation of pure 2-ethylamino-4-nitro-1-alkox Process for the preparation of pure 2-ethylamino-4-nitro-1-alkox

1985-06-18

1986-09-16

Warren, Charles F.

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

Organic compounds

Amino nitrogen containing

C07C 8760

Patent

active

046123962

ABSTRACT:
A process for the preparation of pure 2-ethylamino-4-nitro-1-alkoxybenzenes of the formula (1) ##STR1## in which R denotes an alkyl(C.sub.1 -C.sub.4) or alkoxy(C.sub.1 -C.sub.4)-alkyl(C.sub.1 -C.sub.4) group, which comprises N-monoalkylation of 2-amino-4-nitro-1-alkoxybenzenes of the formula (2) ##STR2## in which R has the abovementioned meaning, using a slight excess of diethyl sulfate in non-polar, organic solvents in the absence of water at temperatures of about 40.degree. to about 120.degree. C.

REFERENCES:
patent: 3184387 (1965-05-01), Seemuller
patent: 3274249 (1966-09-01), Brunner et al.
patent: 3743678 (1973-07-01), Halasz
Sidgwick's Organic Chemistry of Nitrogen, 3rd Edition Oxford University Press, London 1966 pp. 95-96.
Beilsteins Handbuch der Organischen Chemie XIII, p. 389.
Beilsteins Handbuch der Organischen Chemie EII, p. 193.
Comprehensive Organic Chemistry, vol. 2, ed., Sutherland, I. O., Pergamon Press, Oxford, 1979, p. 161.

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