Hydroquinone derivatives and their use in photographic materials

Details Hydroquinone derivatives and their use in photographic materials Hydroquinone derivatives and their use in photographic materials

1983-05-15

1984-10-30

Milestone, Norma S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549484, 549 59, 549473, C07D30768, C07D33340

Patent

active

044801041

ABSTRACT:
Compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are hydrogen or alkyl, X represents the atoms to complete an aromatic heterocyclic ring system and Y is hydrogen or has the meaning assigned to X, are readily cleaved in alkaline solutions to release a hydroquinone derivative.
The compounds can be incorporated into photographic materials used for activation processing.

REFERENCES:
Jean-Pierre Marquet et al., Bulletin de la Societe Chimique de France, (1973), No. 7-8, pp. 2323-2325.

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