Hydroquinones

Details Hydroquinones Hydroquinones

1986-09-11

1989-05-30

Lone, Warren B.

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

Organic compounds

Oxygen containing

260396R, 260396K, 558214, 560 75, 568766, C07C 43164, C07C 5004, C07C 6976

Patent

active

048353230

ABSTRACT:
New hydroquinones have the formula: ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2; R is a residue of formula: ##STR2## wherein Q is (i) -OX or (ii) -PO(OR.sub.11)((O).sub.x R.sub.11); and salts thereof with organic or inorganic acid bases.
The groups X and R.sub.11 and x are defined hereinafter.
The compounds of formula I are useful as stabilisers in photographic materials.

REFERENCES:
patent: 3957836 (1976-05-01), Morimoto et al.
patent: 4139545 (1979-02-01), Morimoto et al.
patent: 4271083 (1981-06-01), Morimoto et al.

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