Purification of 2-chloro-5-nitrobenzaldehyde or acetals thereof

Details Purification of 2-chloro-5-nitrobenzaldehyde or acetals thereof Purification of 2-chloro-5-nitrobenzaldehyde or acetals thereof

1991-06-04

1992-09-22

Lone, Werren B.

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

Organic compounds

Oxygen containing

568426, 568436, C07C 4578, C07C 4580

Patent

active

051498820

ABSTRACT:
2-chloro-5-nitrobenzaldehyde or an acetal thereof is isolated from a mixture of isomers thereof at a temperature of from -10.degree. to +140.degree. C., by suspending the mixture of isomers in a solvent or solvent mixture.

REFERENCES:
patent: 4506089 (1986-07-01), Hackenburger et al.
patent: 4714783 (1987-12-01), Zinnen et al.
patent: 4910345 (1990-03-01), Streicher et al.
Monatsheft, vol. 25, pp. 365-374 (1904).
Liebigs Ann., vol. 272, pp. 148-150 (1983).
Journal of the Chemical Society, Chloro-derivatives of m-hydroxybenzaldehyde, Herbert H. Hodgson & Herbert G. Beard, Jan. 1926, pp. 147-155.
Monatshefte fur Chemie, Uber substituierte Benzaldehyde, Paul Cohn & Albert Blau, pp. 365-374.

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