NUCLEOPHILIC SUBSTITUTE REACTION COMPOUND IN MOLECULE AND USE THEREOF IN PHOTOGRAPHY

Japanese Patent JPS63318555

A

Intramolecular nucleophilic displacement compound or a precursor thereof wherefrom during photographic processing useful group can be split off, said intramolecular nucleophilic displacement compound or precursor thereof corresponding to the following general structure (I): wherein Nu<1> represents a nucleophilic group e.g. HO, H2N or HS, or a precursor of such nucleophilic group e.g. an oxidized nucleophilic group e.g. O= or HN=, or RO wherein R is an alkyl, an acyl, an aryl or a trialkylsilanyl group, which groups may be substituted, the said nucleophilic group or precursor thereof being located in adjacent position to C(R<1>R<2>) so as to make possible elimination of PUG through a nucleophilic displacement reaction; Ar represents an aryl group or a heteroaryl group (e.g. pyridine), which groups may be substituted by one or more mono-atomic or poly-atomic groups, e.g. alkyl groups, nitro groups, cyano groups, carboxy groups, or by substituents which, when in adjacent positions on the ring, together form a ring fused with the (hetero)aryl group, e.g. a benzene ring, a cyclohexane ring, a heteroannulated ring; Ar may comprise as substituent e.g. another nucleophilic group Nu<2> (same as or different from Nu<1>); each of R<1> and R<2> (same or different) represents hydrogen or an alkyl, an aryl or an aralkyl group which groups each may be substituted; R<3> represents an alkyl, an aralkyl, an alkyloxy, an aryloxy, an alkylthio, an arylthio, an amino group which groups each may be substituted, an oxy (O<->) or a hydroxy group; PUG is a group containing a hetero atom (selected from among N, S and O) through which it is attached to the phosphor atom and producing a photographically useful activity after cleavage of the bond between the hetero atom and the phosphor atom.

RIYUKU JIEROOMU BUANMAERU

JP13716088A

December 27, 1988

June 03, 1988

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AGFA GEVAERT NV

C07F9/40; C07F9/44; C07F9/572; G03C7/26; C07F9/59; C07F9/6503; C07F9/6524; C07F9/6539; G03C7/305; G03C7/32; G03C8/10; (IPC1-7): G03C7/26; G03C7/32

Mitsuo Adachi (1 outside)

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