Pyrrolidino and piperidino benz ring substituted phthalides

Details Pyrrolidino and piperidino benz ring substituted phthalides Pyrrolidino and piperidino benz ring substituted phthalides

1979-05-10

1982-09-14

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

282 275, 544 41, 544 62, 544147, 544359, 544372, 544374, 546187, 4283206, 548456, 549304, C09B 5700, C07D40504

Patent

active

043496792

ABSTRACT:
Phthalide compounds of the formula ##STR1## wherein A and B, independently of the other, represent a monovalent radical of the formula ##STR2## wherein X.sub.1 represents an amino group of the formula ##STR3## X.sub.2 represents halogen or an amino group of the formula ##STR4## W is hydrogen or halogen, R.sub.1 and T.sub.1 each represents alkyl of at most 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkylcarbonyloxy, cycloalkyl, phenyl, benzyl or phenyl or benzyl which are substituted by halogen, nitro, lower alkyl or lower alkoxy, R.sub.2 and T.sub.2 each represents hydrogen, alkyl of at most 12 carbon atoms, which is unsubstituted or substituted by halogen, hydroxyl cyano, lower alkoxy or lower alkyl-carbonyloxy; cycloalkyl, benzyl or benzyl which is substituted by halogen, nitro, lower alkyl or lower alkoxy, and T.sub.2 may also represent acyl having 1 to 8 carbon atoms or each pair of substituents R.sub.1 and R.sub.2 or T.sub.1 and T.sub.2 together with the nitrogen atom to which they are attached independently represents a 5- or 6-membered, heterocyclic radical, R.sub.3 represents hydrogen, halogen, lower alkyl, lower alkoxy or lower alkyl-carbonyloxy, Y, Y.sub.1 and Y.sub.2 each represents hydrogen, alkyl which has at most 12 carbon atoms and is unsubstituted or substituted by halogen, hydroxyl, lower alkoxy or cyano, or benzyl which is unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, Z represents hydrogen, lower alkyl or phenyl, and wherein the benzene ring D is not further substituted or additionally contains halogen and the rings E and G independently of the other, are unsubstituted or substituted by halogen, nitro, lower alkyl or lower alkoxy, with the proviso that at least one of W and X.sub.2 is halogen; these compounds are particularly useful as color formers in pressure-sensitive or heat-sensitive recording materials.

REFERENCES:
patent: 3491111 (1970-01-01), Lin
patent: 3491116 (1970-01-01), Lin
patent: 3929829 (1975-12-01), Borror
patent: 3941807 (1976-03-01), Borror
patent: 3979659 (1976-08-01), Borror
patent: 4046776 (1977-09-01), Garner
patent: 4153609 (1979-05-01), Petit-Pierre
patent: 4191690 (1980-04-01), Burri

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