Substituted 1,2,4-triazoles as DIR compounds and their use in ph

Details Substituted 1,2,4-triazoles as DIR compounds and their use in ph Substituted 1,2,4-triazoles as DIR compounds and their use in ph

1980-06-12

1982-12-07

Rollins, Alton D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548264, 548265, C07D24912, C07D40306

Patent

active

043628788

ABSTRACT:
Development inhibitor releasing compounds of the formula: ##STR1## are provided wherein R.sub.1 is hydrogen or a substituent which may contain a long chain ballasting group and n is 1 or 2, or R.sub.1 may form an annelated ring, R.sub.2 is hydrogen or alkyl having 1 to 4 carbon atoms, R.sub.3 is alkyl, aryl or aralkyl, Y is hydrogen, halogen, optionally substituted phenyl, --COOR.sub.4, --COR.sub.4, ##STR2## or --OR.sub.4 where R.sub.4 is alkyl or aryl or a group ##STR3## where Z represents the atoms necessary to complete an optionally substituted 5- or 6-membered heterocyclic ring which optionally may be benzannelated.
The new DIR-compounds form colorless compounds when reacted with the oxidation products of the color developing agent. They have an extremely high reactivity with the oxidation products of the color developing agent so that only small quantities of the DIR-compounds are required to produce excellent intra-image and inter-image effects of excellent speed.

REFERENCES:
patent: 3869291 (1975-03-01), Madey et al.
patent: 3945829 (1976-03-01), Zorn et al.
patent: 4079143 (1978-03-01), Balasubramanyan et al.
patent: 4121934 (1978-10-01), Yagihara et al.

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