摘要:
There is disclosed a cyan dye-forming coupler represented by formula (I) and a silver color photographic material containing same. ##STR1## wherein EWG represents an electron-attractive group having a Hammett substituent constant .sigma..sub.p value of 0.30 or more, R represents a substituent, l represents an integer of 0 to 2, X represents a hydrogen atom or a group capable of being released upon coupling reaction with the oxidized product of an aromatic primary amine derivative, R and EWG may bond together to form a ring, and when l is 2, two Rs may be the same or different or may bond together to form a ring.
摘要:
A silver halide color photographic material having on a support at least one cyan dye-forming coupler-containing silver halide emulsion layer, at least one magenta dye-forming coupler-containing silver halide emulsion layer and at least one yellow dye-forming coupler-containing silver halide emulsion layer, wherein the cyan dye-forming coupler is a 1-naphthol type coupler having a naphtol nucleus, in which a group represented by the following formula (I) binds directly to the 2-position of the naphthol nucleus, and the magenta dye-forming coupler is a 1H-pyrazolo[1,5-b]-1,2,4-triazole type coupler, ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aralkyl group, or an aryl group; R.sup.2 represents a substituent group; R.sup.3 and R.sup.4 each represents a hydrogen atom, an alkyl group, an aryl group, a halogen atom, an alkoxy group, or an aryloxy group; l represents an integer from 0 to 4; and m represents an integer from 0 to 4.
摘要:
A method of forming a cyan dye image in an exposed silver halide color photographic material comprising a support and a photosensitive silver halide emulsion, said method comprising developing the exposed silver halide color photographic material with a color developing solution containing an aromatic primary amine color developing agent in the presence of a cyan coupler represented by formula (I): ##STR1## wherein EWG.sub.1 and EWG.sub.2 each represents an electron attractive group having a Hammett's substituent constant .sigma..sub.p value of at least 0.30 or;R.sub.1 represents a hydrogen atom or a substituent;R.sub.2 represents a substituent;X represents a hydrogen atom or a group capable of splitting off by a coupling reaction with an oxidation product of an aromatic primary amine color developing agent;R.sub.1 and R.sub.2 may be bonded to each other to form a ring; provided that R.sub.2 must not be a halogen atom; and a silver halide color photographic material containing the cyan dye forming coupler.
摘要:
A silver halide photographic material containing at least one dye forming coupler represented by formula (I): ##STR1## wherein R.sub.0 represents a hydrogten atom or a substituent; R.sub.1 and R.sub.3 each represents a substituent; R.sub.2 represents an electron attracting group; X represents a hydrogen atom or a group releasable on coupling with an oxidation product of an aromatic primary amine derivative, and a silver halide photographic material containing the same are disclosed. The coupler of formula (I) exhibits excellent coupling activity and provides a dye which has a sharp absorption spectrum with no side absorption in the blue and green light regions and exhibits stability to light, heat and moisture and improved color reproducibility.
摘要:
A process is provided for producing a guanidinothiazole compound represented by the formula: ##STR1## wherein, R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen or an alkyl group having 1 to 3 carbon atoms; m represents 1 or 2; and n represents 2, 3 or 4. The process comprises reacting an aminothiazole compound of the formula: ##STR2## with a cyanamide or an amidinopyrazole, the compounds are useful as intermediates in the preparation of a gastric acid secretion inhibitor.
摘要:
Novel guanidinothiazole compounds of the general formula ##STR1## wherein R represents a hydrogen atom or a lower alkyl group, R.sub.1 represents an amino group, a lower alkyl group, a halogeno lower alkyl group, a substituted- or unsubstituted-aryl group, a mono- or di-lower alkylamino group, an arylamino group or an aralkylamino group, R.sub.2 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, Y represents a sulfur atom or a methylene group, m and n, each represents an integer of 1-3, and the pharmacologically acceptable acid addition salts thereof, they are useful as gastric acid secretion inhibitors.
摘要:
In an oxo process wherein an olefin is caused to react with carbon monoxide and hydrogen, a rhodium catalyst is provided by carrying out the hydroformylation in the presence of a rhodium source and free mixed ligands comprising a tertiary organo phosphorus and tertiary organo arsenic in excess of the quantity required for coordination to the rhodium atom. For example, HRh(CO)(PPh.sub.3).sub.3 with excess AsPh.sub.3 /PPh.sub.3 may be used to give a high reaction rate and good selectivity to n-aldehyde.
摘要:
3,15-Dilower alkyl prostaglandin E.sub.2 derivatives and 3,15-dilower alkyl prostaglandin D.sub.2 derivatives are disclosed. These compounds have antigastric ulcer activity without undesirable side effects to intestinal organs.
摘要:
A protective film to a polarizer including a cellulose acylate and satisfying the following requirement (1) or (2): (1): The surface of the film has a pH of from 3.0 to 4.5. (2): The surface of the film has a pH of more than 4.5 and at most 6.0, and the film has a moisture permeability of at least 2800 g/m2·day.
摘要翻译:包含纤维素酰化物的偏振片的保护膜,满足以下要求(1)或(2):(1):膜的表面的pH为3.0〜4.5。 (2)膜的表面pH为4.5以上6.0以下,透湿度至少为2800g / m 2·天。
摘要:
An image-forming method, containing the steps of: superposing a heat-sensitive transfer sheet on a heat-sensitive transfer image-receiving sheet so that the following at least one receptor layer of the heat-sensitive transfer image-receiving sheet can be contacted with the following thermal transfer layer of the heat-sensitive transfer sheet; and providing thermal energy in accordance with image signals, thereby to form a thermal transfer image; in which the heat-sensitive transfer image-receiving sheet comprises, on a support, at least one receptor layer containing a polymer latex, and at least one heat insulation layer containing hollow polymer particles but free of any resins having poor resistance to an organic solvent except for the hollow polymer particles, and the heat-sensitive transfer sheet comprises, on a support, a thermal transfer layer containing at least any one of a compound represented by formula (Y), a compound represented by formula (M) and a compound represented by formula (C): in which, in formulas (Y), (M) and (C), X, Y and Z each independently represents ═C(D13)- or a nitrogen atom, and D1 to D23 each independently represent a hydrogen atom or a substituent, such as an alkyl group.