Process for the preparation of o-nitrophenetole

Details Process for the preparation of o-nitrophenetole Process for the preparation of o-nitrophenetole

1988-11-04

1990-09-04

Gray, Bruce

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

Organic compounds

Oxygen containing

C07C 4300

Patent

active

049546570

ABSTRACT:
A process for the preparation of o-nitrophenetole by allowing about 1.05 to about 1.4 mole of ethanol to act on 1 mole of o-nitrochlorobenzene in the presence of a phase-transfer catalyst in approximately 40 to approximately 70 percent by weight alkali metal hydroxide solution at temperatures from about 50.degree. to about 80.degree. C. in such a way that the ethanol concentration in the reaction mixture does not exceed 1.5 percent by weight throughout the course of the reaction.

REFERENCES:
patent: 2545597 (1951-03-01), Ashford et al.
patent: 3085113 (1963-04-01), Knowles et al.
patent: 4454355 (1984-06-01), Schubert et al.
patent: 4479015 (1984-10-01), Sasson et al.
S. G. Riklis, Chem. Abs., 34:54239, (1940).
B. B. Dey et al., J. Scient. Ind. Res. (India), 4, 369-374, (1945).
B. B. Dey et al., J. Scient. Ind. Res. (India) 5B, 25-28, (1946).

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