Terephthalic acid derivatives and process for preparing them

Details Terephthalic acid derivatives and process for preparing them Terephthalic acid derivatives and process for preparing them

1980-09-30

1982-07-13

Breitenstein, G. T.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 7946

Patent

active

043396011

ABSTRACT:
The novel compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each either hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and maybe the same or different, are useful intermediates in a novel process for the preparation of herbicidally active compounds such as 2,5-dichloro-3-nitro-benzoic acid, 2,5-dichloro-3-amino-benzoic acid and their functional derivatives.

REFERENCES:
Romanowski et al., Chem. Absts., 83, 27831(x), 1975.
Chen et al., Chem. Absts., 81, 135636(e), 1974.
Keith et al., Chem. Absts., 59, 15220(c), 1963.
Wagner et al., Synthetic Organic Chemistry, John Wiley and Sons, Inc., N.Y., p. 496, 1965.
Levy et al., Berichte, vol. 21 (1888), pp. 1463-1468 and pp. 1959-1964.

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