| Document |
Document Title |
|
JPH042579B2 |
1. Process for manufacturing 2-amylanthraquinone having a high content of the tert-isomer, by reaction of phthalic anhydride with tert-amylbenzene in the presence of a catalyst consisting of a mixture of hydrofluoric acid and boron trifl...
|
|
JPH0379331B2 |
Trimethyl-p-benzoquinone of the formula I (I) is prepared by a process wherein A. 2,5,6-trimethylcyclohex-2-en-1-one or 2,3,6-trimethylcyclohex-2-en-1-one is reacted with air or oxygen at from 0 DEG to 150 DEG C. in a virtually anhydrous...
|
|
JPH0376298B2 |
|
|
JPH03258745A |
PURPOSE: To efficiently and economically obtain high-quality chloranil while improving solubility of product in reacting hydroquinone with a chlorine gas in a reaction solvent, by using an acetic acid-water mixed solvent or an acetic aci...
|
|
JPH03246250A |
PURPOSE: To advantageously obtain chlorinated naphthoquinones by chlorinating the subject compounds with a hydrochloric acid solution at a specific concentration and hydrogen peroxide solution using a metal and metal chloride as a cataly...
|
|
JPH03209343A |
NEW MATERIAL: A compd. of formula I (X is H, OH; one of R, R1 is H and the other is F; R2 is H, OH, alkoxy). EXAMPLE: 2β-acetyl2α,4α,5,12tetrahydroxy3β-fluoro1,2,3,4tetrahydr
o6,11 nephthacenedione. USE: A intermediates for novel ant...
|
|
JPH0357096B2 |
|
|
JPH0351697B2 |
|
|
JPH03151343A |
PURPOSE: To obtain the subject compound with high purity in high yield for a short reaction time, by reacting phthalic anhydride with a phenol derivative in the presence of a Lewis acid catalyst and an optional diluent in an automatic cl...
|
|
JPH0337532B2 |
|
|
JPH0329777B2 |
|
|
JPH0321534B2 |
|
|
JPH0320376B2 |
|
|
JPH0319215B2 |
|
|
JPH0356438A |
NEW MATERIAL: A 2-halogeno-3-phenoxy-1,4-naphthoquinone derivative of formula I (wherein R1-R5 is each H, halogen, cyano, nitro, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylsulfonyl, alkylsulfinyl, halogenoalkylthio, ar...
|
|
JPH03368B2 |
|
|
JPH02289532A |
NEW MATERIAL:TAN-1085 of the formula (R is rhodinosyl or H) or an aglycone thereof. USE: An arterialization inhibitor. An aromatase inhibitor. A strong small molecule. Useful for breast cancers, endometritis, corpus uteri cancers, ovariu...
|
|
JPH02279652A |
PURPOSE: To obtain a compd. useful as a synthetic intermediate of vitamin E in good yield by oxidizing a trimethylphenol by gaseous oxygen in the presence of a catalyst containing copper halide. CONSTITUTION: A trimethylphenol is reacted...
|
|
JPH0253032B2 |
|
|
JPH0249777B2 |
|
|
JPH02264739A |
PURPOSE: To obtain the objective substance in high yield by using a lower aliphatic alcohol, etc., having a high branching degree as a solvent in oxidizing 2,3,6-trimethylphenol with oxygen in the presence of a catalyst consisting of a c...
|
|
JPH0247975B2 |
In the process of oxidizing phenol to p-benzoquinone with a bivalent copper ion catalyst, the improvement of promoting the catalyst with a secondary or tertiary lower alkylamine to obtain improved conversion and/or selectivity.
|
|
JPH02256641A |
PURPOSE: To obtain an oxidation product easily in a high yield by a method in which benzyl alcohol is oxidized in a liquid medium by the use of a high activity catalyst of a metalloporphyrine and a specified oxidizing agent while control...
|
|
JPH0242818B2 |
|
|
JPH0242817B2 |
A new widely-applicable method has been found for synthesis of 9,10-anthraquinones and similar chemical compounds of wide use in industry and pharmacology, by reacting suitable aromatic substrates with activated dicarboxylic acids (more ...
|
|
JPH0237903B2 |
PCT No. PCT/EP82/00058 Sec. 371 Date Jul. 23, 1982 Sec. 102(e) Date Jul. 23, 1982 PCT Filed Mar. 23, 1982 PCT Pub. No. WO82/03625 PCT Pub. Date Oct. 28, 1982.In the oxidation of reactive aromatics with molecular oxygen in carboxylic acid...
|
|
JPH0231718B2 |
|
|
JPH02164840A |
PURPOSE: To obtain the subject compd. useful for producing 7-O- glycosylrhodomycin in good yield by a simple method wherein a specific protective group is introduced into unprotected rhodomycinone aglicon to selectively alkylate a phenol...
|
|
JPH0222055B2 |
Substituted anthraquinones are obtained by thermal or catalytic dehydrochlorination of the corresponding substituted ortho-benzoylbenzoic acid chloride. They may be used for the production of hydrogen peroxide and the synthesis of dyes.
|
|
JPH0218900B2 |
|
|
JPH0214338B2 |
|
|
JPH0214339B2 |
|
|
JPH0211673B2 |
A method for electrolyzing cerous sulfate in the electrolytic oxidation of cerous sulfate to ceric sulfate in an aqueous sulfuric acid solution, characterized in that the concentration of the cerous sulfate in the electrolyte to be suppl...
|
|
JPH029015B2 |
|
|
JPH023776B2 |
|
|
JPH022872B2 |
|
|
JPH022956B2 |
PURPOSE:To produce a quinone compd. corresponding to an arom. compd. at a high selection rate by anodizing the arom. compd. with ceric ions as an oxidation medium in the stage of producing the quinone compd. from the arom. compd. CONSTIT...
|
|
JPH02336B2 |
|
|
JPH02282A |
NEW MATERIAL: A compd. represented by formula I (wherein R1 forms a hydrolyzable ether hydroxy protective group together with a bonded oxygen atom thereof). EXAMPLE: Racemic-5-[2.5-bis(acetyloxy)-3,4,6-trimethylphenyl]-3-methy
l-1-pentyn...
|
|
JPH0160462B2 |
|
|
JPH0159258B2 |
|
|
JPH0150688B2 |
NEW MATERIAL:A compound expressed by formulas I-III (n is an integer 2-22; R1 is lower alkyl; R2-R4 are H, lower alkyl or acyl; X is H or OH or NH2 which may have a protecting group; m is an integer 11-22). EXAMPLE:6-(13-Hydroxytridecyl)...
|
|
JPH0149250B2 |
|
|
JPH0149249B2 |
|
|
JPH0149132B2 |
|
|
JPH0149133B2 |
|
|
JPH0144690B2 |
|
|
JPH01224346A |
NEW MATERIAL:Trifluorovitamin Ks expressed by the formula (R is allyl, prenyl, geranyl or phytyl). EXAMPLE: 2-Trifluoromethyl-3-allyl-1,4-naphthoquinone. USE: Useful for preventing and treating vitamin K deficiency, hemorrhage in surgica...
|
|
JPH0137384B2 |
|
|
JPH0135813B2 |
|
