Tetracarboxylic acids

Details Tetracarboxylic acids Tetracarboxylic acids

1981-12-02

1983-12-20

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

562433, 562434, 562426, 562427, 562466, 562467, 562468, 562488, 562489, 562490, 562492, C07C 5900, C07C 6500

Patent

active

044219296

ABSTRACT:
Novel tetracarboxylic acids are described of the formula ##STR1## wherein Ar, R.sub.1 and R.sub.2 are named substituents, and both n's are zeros or ones.

REFERENCES:
patent: 2047398 (1936-07-01), Voss
patent: 2913482 (1959-11-01), Dazzi
patent: 3322829 (1967-05-01), Zienty
patent: 3420870 (1969-01-01), Zienty
patent: 3468940 (1969-09-01), Zienty
Royals, E. E., Advanced Org. Chem., Prentice Hall, 798-799, (1961).

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