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JPH06306027A |
PURPOSE: To provide a cyclobutenedionyl derivative crystal having a laser- oscillation function and a function to convert a fundamental wave to the second harmonic wave having wavelength corresponding to 1/2 of that of the fundamental wa...
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JPH0678282B2 |
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JPH06279372A |
PURPOSE: To obtain the subject compound useful as a synthetic raw material for medicinal intermediates in a high purity and yield by subjecting optically active 3-amino-1,2-butandiol to the oxidizing cleavage reaction. CONSTITUTION: A co...
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JPH06263681A |
PURPOSE: To efficiently obtain the subject compound excellent in stereocontrollability in a simple operation under mild conditions in high optical yield by hydroformylation of a specific vinyl compound using a specific catalyst. CONSTITU...
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JPH06256249A |
PURPOSE: To obtain in high purity a compound useful for medicines, electrophotographic sensitizers, liquid crystal elements, organic conductors, etc., by reaction between an azulene compound and bromine in acetic acid to form a bromoazul...
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JPH06247912A |
PURPOSE: To obtain an anthraquinone compound in high purity and yield by using 1-chloroanthraquinone as a starting raw material and reacting with an alkylamine in N,N'-dimethylimidazolidinone. CONSTITUTION: An anthraquinone compound of f...
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JPH06507409A |
Disclosed is a process for the preparation of 1-amino-4-bromoanthraquinones by the bromination of the corresponding 1-aminoanthraquinone wherein a 1-amino-anthraquinone is contacted with elemental bromine in the presence of a carboxylic ...
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JPH06228064A |
PURPOSE: To easily and economically obtain the subject compound useful as raw materials of pyrroles which are co-stabilizer for PVC by reacting a nitrosated keto ester with a carboxylic anhydride in the presence of a hydrogenation cataly...
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JPH06199750A |
PURPOSE: To provide a method for preparing 1-amino-4-hydroxyanthraquinone from 1,4-dihydroxyanthraquinone in high yield and with a simple process. CONSTITUTION: This method for preparing 1-amino-4-hydroxyanthraquinone is comprises treati...
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JPH06505495A |
The invention relates to HIV protease inhibitors wherein the compounds have a 2,4-dihydroxy isostere wherein the hydroxyl group in the 2-position is further substituted to create a tertiary alcohol. Also disclosed are pharmaceutically ac...
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JPH0645908B2 |
A process for producing 1-aminoanthraquinones represented by formula (C) wherein R<1> and R<2>, independently from each other, denote one type selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms and a halogen atom, w...
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JPH0639456B2 |
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JPH06145118A |
PURPOSE: To simply produce an amino nitro derivative in a good yield by selectively partially reducing a dinitro compound of a condensed carbon polycyclic or heterocyclic ketone. CONSTITUTION: The dinitro compound of formula I [X is sing...
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JPH0637446B2 |
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JPH0637448B2 |
A novel ether solution of dinitrobenzophenone and a process for preparing an ether solution of diaminobenzophenone therefrom which comprises subjecting a dinitrobenzophenone dissolved in said ether solvent to hydrogenation in contact wit...
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JPH06116216A |
PURPOSE: To produce the compound in high optical activity and yield by oxidiz ing an N-protected amino alcohol in an organic solvent using an oxidizing agent consisting of a combination of dimethyl sulfoxide and a water-soluble carbodiim...
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JPH0623141B2 |
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JPH0656731A |
PURPOSE: To obtain the compound as an important intermediate of an oxime derivative having a herbicidal activity in a high yield and in a high selectivity by reacting a phenol derivative with a magnesium compound and formaldehyde in the ...
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JPH0656732A |
PURPOSE: To obtain the compound as an important intermediate of an oxime derivative having excellently herbicidal activity in a high yield and in a high selectivity by reacting a phenol derivative with a magnesium compound and formaldehy...
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JPH0625018A |
PURPOSE: To advantageously execute the catalytic hydrogenation of carboxylic acid halides to aldehyde in the presence of an alkylene oxide. CONSTITUTION: At the time of the catalytic reduction of carboxylic acid halides with hydrogen, it...
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JPH064567B2 |
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JPH06731B2 |
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JPH05301850A |
PURPOSE: To provide the subject new aldehyde compound which is an intermediate for producing a new pyrene ring-containing triarylamine compound useful as an organic photoconductive material for electrophotography. CONSTITUTION: An aldehy...
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JPH05294904A |
PURPOSE: To obtain a new squaric acid derivative useful as a synthetic raw material for ultraviolet ray absorbers and heat-resistant polyimide resins or its salt. CONSTITUTION: The objective squaric acid derivative of formula I (R1 and R...
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JPH05255211A |
PURPOSE: To obtain 2-aminobenzaldehyde, which is useful as an intermediate of pigments or active materials, from corresponding dibenzotriazabicyclononane in a high yield and a high purity by a simple method. CONSTITUTION: Triazononane of...
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JPH0558422B2 |
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JPH0557260B2 |
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JPH0557259B2 |
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JPH05170713A |
PURPOSE: To synthesize an anthraquinone compound having excellent quality in high yield while suppressing the formation of by-product to an extremely low level compared with conventional process by carrying out the reaction in 1,3-dimeth...
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JPH05163214A |
PURPOSE: Preparation of 1-aminoantraquinone. CONSTITUTION: A compd. of the formula [wherein X is a chlorine atom, a bromine atom or a hydroxyl group], ammonia (in water or in a solvent or as gas) and a reducing agent are heated to 30-200...
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JPH05117169A |
PURPOSE: To obtain a compound useful as an inhibitor to serine protease or thiol protease by reacting a diazo methyl ketone of a specific formula with a metal chloride in the presence of an alcohol. CONSTITUTION: A compound of formula I ...
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JPH05117215A |
PURPOSE: To provide a commercially practicable and profitable process for selectively preparing 1-aminoanthraquinone and its substd. deriv. CONSTITUTION: 2-Chlorobenzyl chloride is allowed to react with xylene in the presence of a solid ...
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JPH0530824B2 |
This invention relates to aryloxycycloalkanolaminoalkylene aryl ketones to the processes for their preparation and to their use as antihypertensive agents.
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JPH05112512A |
PURPOSE: To obtain purified 1-amino-2-phenoxy-4-hydroxyanthraquinone with a high yield by adjusting pH within a specified range after completion of the reaction for obtaining the compd., separating the product from the liq. phase and was...
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JPH0597784A |
PURPOSE: To efficiently synthesize 1-aminoanthraquinone useful for a dye or the like by allowing a substituted benzoic acid derivative to react with xylene under a specific condition. CONSTITUTION: 2-Substituted dimethyl benzophenones ar...
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JPH0517219B2 |
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JPH059419B2 |
The invention relates to an improvement of the process for the preparation of 1,4-diaminoanthraquinones by oxidation of the corresponding 2,3-dihydro-1,4-diaminoanthraquinones with nitrobenzene, which improvement is brought about by carr...
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JPH058184B2 |
A novel ether solution of dinitrobenzophenone and a process for preparing an ether solution of diaminobenzophenone therefrom which comprises subjecting a dinitrobenzophenone dissolved in said ether solvent to hydrogenation in contact wit...
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JPH04312559A |
PURPOSE: To industrially and advantageously obtain 4-alkanoyl-2-haloanilines useful as an intermediate for alkanesulfonanilide derivatives having pharmacological actions such as anti-inflammatory and analgesic actions by using a stable h...
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JPH04300848A |
PURPOSE: To provide a novel benzoquinone compd. important for producing a triphenodioxazine deriv. and more particularly an asymmetric triphenodioxazine deriv. useable as a dye chromophore. CONSTITUTION: The benzoquinone compd. of formul...
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JPH04279544A |
PURPOSE: To provide a new substance of calicheamicinone useful as a DNA cutting agent, antimicrobial agent and cytotoxic (antitumour) agent, its deriv. and analog. CONSTITUTION: The compd. of formula I (R1, R2 are H, a 1 to 6C alkyl, phe...
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JPH04275247A |
PURPOSE: To obtain a new phenanthrene derivative having 5-lipoxygenase inhibiting action and simultaneously having strong antioxidizing film to active oxygen seed or active organic radical or salt thereof. CONSTITUTION: A phenanthrene de...
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JPH04275253A |
PURPOSE: To obtain a new tetralone derivative having inhibitory actions on 5-lipoxygenase, removing active oxygen sources or active organic radicals, having inhibitory or reducing action on formation of lipoperoxide. CONSTITUTION: A tetr...
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JPH0450297B2 |
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JPH04208255A |
NEW MATERIAL: A compound of formula I [Ar is formula II (V is H, halogen, alkyl, alkoxy, CF3 or NO2; u is 1-3; X, Y are CF3 or CHF; Z, W are CH2, O, CHOH or CHF; m, n, p, q, and are 0 or 1; R1 is H or alkyl; and R2, R3 are alkyl)], their...
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JPH04128255A |
NEW MATERIAL:A compound shown by formula I [R1, R3 and R5 are H, alkvl, aryl, allyl, OH, alkoxy, NH2, pyrrolyl, furyl, thienyl, CN, NO2, etc.; R2 and R4 are group shown by formula II (R7 is alkoxy, NH2, mono- or dialkylamino, etc.; and (...
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JPH0422900B2 |
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JPH0421655B2 |
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JPH0420906B2 |
Preparation of 3,3'- or 3,4'-diaminobenzophenone by nitrating a chloronitrobenzophenone mixture obtained by the Friedel-Crafts reaction between 3- or 4-nitrobenzoyl chloride and chlorobenzene, and catalytically reducing and dechlorinatin...
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JPH0419222B2 |
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