摘要:
A process for development-processing a silver halide black-and-white photographic light-sensitive material without silver stain and fog by the use of a developing solution which contains 0.1 mole/l or more of sulfite and at least one compound represented by the following general formula (I) or (II) ##STR1## wherein M represents a hydrogen atom, an alkali metal atom or an ammonium group; R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; n represents an integer of 1 to 8; and X represents a sulfonic acid group, a sulfonate group, a carboxylic acid group or a carboxylate group.
摘要:
A rhodacyanine derivative represented by the following General Formula (1), wherein, in General Formula (1), R1, R2, and R3 each independently represent an alkyl group which may be substituted; Y1 and Y2 each independently represent a hydrogen atom, a chlorine atom, or a fluorine atom provided that Y1 and Y2 do not represent hydrogen atoms at the same time; and X represents a counter anion. A pharmaceutical composition for treating leishmaniasis including the rhodacyanine derivative and a pharmaceutically acceptable carrier.
摘要:
A light- and heat-sensitive composition which contains a photo-hardenable composition and at least one dye, a light- and heat-sensitive recording material which contains a support having the composition provided on at least one side thereof, and an image-forming process using the recording material are disclosed.
摘要:
A silver halide photographic material, which contains at least one blocked photographic reagent having in the molecule thereof at least one group selected from ##STR1## group and capable of releasing a photographically useful reagent by cleavage of the --N--C--bond by a nucleophilic attack of a nucleophilic reagent on the carbonyl group and a subsequent intramolecular electron transfer reaction or intramolecular nucleophilic reaction and which has at least one photosensitive silver halide emulsion layer, is photographically processed in the presence of an amine. A photographic material which includes, in combination, a photographic reagent precursor capable of releasing a photographically useful reagent timely on photographic processing and a photosensitive silver halide emulsion layer is provided along with a method of processing the photographic material.
摘要:
A heat-developable photographic material comprising (a) an organic silver salt, (b) a photocatalyst, (c) a reducing agent, (d) a binder, and (e) at least one compound selected from the compound represented by the general formula (I) described below and the compound represented by the general formula (II) described below. ##STR1## wherein X represents a halogen atom; and R represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, an acyl group, a carbamoyl group, an alkylsulfonyl group, an arylsulfonyl group, an aralkylsulfonyl group or a heterocyclic residue, ##STR2## wherein X represents a halogen atom; Z represents a sulfur atom, an oxygen atom or >N--R.sub.1 (wherein R.sub.1 represents an alkyl group, an aryl group or an acyl group; (R')n represents a substituent present on the benzene nucleus; and n represents 0 or an integer from 1 to 4.In the heat-developable photographic material, the occurrence of fog is prevented by using the compound represented by the general formula (I) or (II) which has reduced toxicity.
摘要:
A method for processing an exposed silver halide color photographic material by development and desilvering is described, which comprises the steps of (1) treating said material in a color developing bath, (2) treating the developed material in a bath having incorporated therein at least one compound of formula (I) or a salt thereof: ##STR1## and (3) treating said material in a bath having bleaching or bleach-fixing ability.
摘要:
A silver halide color photographic material comprising as a cyan-dye-forming coupler a compound represented by of formula (I) ##STR1## wherein R.sub.1 represents a ballast group imparting diffusion fastness to the coupler of formula (I) and a cyan dye formed from said coupler; X represents a hydrogen atom or a group represented by --R, --OR, --SR, ##STR2## --COR, --COOR, --SO.sub.2 R, --SO.sub.2 OR, ##STR3## or --OCOR; Y represents a halogen atom, a cyano group, a trifluoromethyl group, a nitro group, or a group represented by --R, --OR, --SR, --COR, --COOR, --SO.sub.2 R, --SO.sub.2 OR, ##STR4## m and n each represents an integer of 1 to 5, and when m or n is more than 1, the X or Y, respectively, are the same or different; R represents an aliphatic group, an aromatic group, or a heterocyclic group, and R' and R" each represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; with the proviso that the total number of carbon atoms in the substituent (X).sub.m is 4 or more.
摘要:
A process for efficiently preparing 2-amino-5-nitrophenol derivatives in which benzoxazole derivatives are subjected to nucleophilic substitution reaction at the 5 position thereof to obtain corresponding benzoxazole derivatives, and the oxazole ring of the benzoxazole derivatives is then subjected to ring-opening to obtain 2-amino-5-nitrophenol derivatives. The 2-amino-5-nitrophenol derivatives are useful as industrial starting materials, reducing agents or antioxidants and intermediates for cyan-image-forming couplers.
摘要:
A method for processing a silver halide photographic light-sensitive material comprising a support having thereon a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent capable of releasing a photographically useful agent, which method comprises processing the photographic light-sensitive material in the presence of an oxime.According to this method for processing a silver halide photographic light-sensitive material, both stability of the photographic light-sensitive material during storage and release of a photographically useful agent during processing are achieved without undersirable side-reactions, and a high sensitivity/fog ratio is obtained.
摘要:
A silver halide photographic light-sensitive material which comprises a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent, said blocked photographic agent being represented by the following general formula (I): ##STR1## wherein A represents a photographic agent moiety which is attached to a blocking moiety through a hetero atom; Z represents a divalent linkage group; p represents 0 or 1; X and Y each represents a substituent: m represents an integer of 0 to 4: and n represents an integer of 0 to 5.