Benzoylbenzoic acids

Details Benzoylbenzoic acids Benzoylbenzoic acids

1972-12-12

1978-06-20

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26029358, 26029379, 260287P, 26032634, 26032647, C07C 6520

Patent

active

040961761

ABSTRACT:
Substituted 3,3-diphenylphthalides, useful as color precursors, particularly in the art of pressure-sensitive duplicating systems, are prepared by condensing substituted 2-benzoylbenzoic acids with substituted anilines.

REFERENCES:
patent: 1663229 (1928-03-01), Adams et al.
patent: 1762978 (1930-06-01), Gubelmann et al.
patent: 3131178 (1964-04-01), Archer et al.
patent: 3491112 (1970-01-01), Lin
patent: 3646011 (1972-02-01), Archer et al.
Allais Chem. Abstracts, vol. 42 (1948), pp. 4998-4999.

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