Process and intermediates for preparing 3-[4-(disubstituted-amin

Details Process and intermediates for preparing 3-[4-(disubstituted-amin Process and intermediates for preparing 3-[4-(disubstituted-amin

1979-08-27

1981-03-10

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

2603433R, 562441, C07D30783, C07D45500

Patent

active

042555779

ABSTRACT:
3-[4-(Disubstituted-amino)phenyl] or (9-julolidinyl)-3-(diphenylamino)phthalides useful as color formers in pressure-sensitive and thermal marking systems are prepared by reaction of 2-[4-(disubstituted-amino)benzoyl] or (9-julolidinyl-carbonyl)benzoic acids with diphenylamines.

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patent: 3925457 (1975-12-01), Tsunemitsu et al.
patent: 4007195 (1977-02-01), Garner et al.
patent: 4036855 (1977-07-01), Houlihan
patent: 4096176 (1978-06-01), Crounse et al.

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