Document Type and Number:
Japanese Patent JPH0435448
Kind Code:
B2
Abstract:
New benzo-1,4-quinones and salts thereof with organic or inorganic acid and bases have the formula I (I) 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 II (II) wherein Q is selected from the residues -CO2R4, -CON(R4)(R5), -OR5, -OCOR7, -N(R8)(R9), -PO(OR10)([O]xR11), -SO2R12, -CN, Halogen, -NO2 or -COR13, n is an integer from 1 to 20, k is 1 or 2 and x is 0 or 1, and R1 to R5 and R7 to R13 are as defined in the specification. The compounds of formula I are useful in photographic materials such as bleaching inhibitors in films of photographic silver dye bleach materials.
Inventors:
FUREDERITSUKU HARORUDO HAUERU
Application Number:
JP7415583A
Publication Date:
June 11, 1992
Filing Date:
April 28, 1983
Export Citation:
Assignee:
CIBA GEIGY
International Classes:
C07C50/24; C07C45/00; C07C46/06; C07C50/26; C07C50/28; C07C50/38; C07C51/00; C07C51/16; C07C51/29; C07C59/52; C07C66/00; C07C67/00; C07C69/757; C07C201/00; C07C205/45; C07C213/00; C07C225/28; C07C231/00; C07C235/78; C07C253/00; C07C255/31; C07C317/24; C07F9/30; C07F9/40; G03C7/02; G03C7/28
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