775-01-9

Usage

Uses

A protein kinase C inhibitor.

Definition

ChEBI: A catechol that is the 3,4-dihydroxy derivative of mandelic acid; a metabolite of L-dopa.

InChI:InChI=1/C8H8O5/c9-5-2-1-4(3-6(5)10)7(11)8(12)13/h1-3,7,9-11H,(H,12,13)

Upstream product

• 120-80-9 benzene-1,2-diol 
• 298-12-4 Glyoxilic acid 
• 117279-29-5 2-(3,4-carbonyldioxyphenyl)-2-chloroacetic acid 
• 67-64-1 acetone 

Downstream Products

• 102599-59-7 (+/-)-2-<3,4-bis(benzyloxy)phenyl>-2-hydroxyethanoic acid 
• 131692-65-4 2,2-dimethyl-5-(3,4-dihydroxyphenyl)-1,3-dioxolan-4-one 
• 335591-55-4 3,4-dihydroxymandelic acid N-succinimidyl ester 
• 99-50-3 3,4-Dihydroxybenzoic acid 
• 139-85-5 3,4-dihydroxybenzaldehyde 
• 131692-70-1 <aminocarbonyl>benzoic acid 
• 131692-73-4 (2,2-Dimethyl-benzo[1,3]dioxol-5-yl)-[2-((S)-1-phenyl-ethylcarbamoyl)-benzoylaminooxy]-acetic acid 
• 621-59-0 isovanillin 
• 121-33-5 vanillin 
• 120-57-0 piperonal 
• 3897-89-0 4-(hydroxymethyl)benzene-1,2-diol 
• 1484-85-1 3,4-methylenedioxyphenylethylamine 
• 1485-00-3 5-(2-nitrovinyl)benzo[1,3]dioxole 
• 25379-88-8 2-(3,4-dihydroxyphenyl)acetic acid methyl ester 

Relevant academic research and scientific papers

A method of synthesis of piperonolamine

The present invention belongs to the field of organic chemical synthesis, specifically relates to a synthesis method of piperine, comprising: using catechol as a raw material to prepare piperonaldehyde; β - nitro-3,4-dioxenosylstyrene prepared with piperonaldehyde; β - nitro -3,4-dioxenesimethylenestyrene to obtain piperine ethylamine. Among them, the preparation of piperaldehyde from catechol as raw materials includes two ways: (1) catechol→3,4-dihydroxymandelic acid→3,4-dihydroxybenzaldehyde→ piperaldehyde; (2) catechol→ piperine ring → piperine. The raw materials used in the present invention are safe and readily available, low cost; the reaction conditions are mild, the operation is simple, the chemical yield is high, and the intermediate reagents are easy to recover; suitable for industrial production.

A synthetic preparation method for small carbags hydrochloric acid

The present invention belongs to the field of organic chemistry, relates to a method of synthesizing berberine hydrochloride, comprising: S1: with 5-halo-o-quinoastearaldehyde and piperine ethylamine to obtain N- [2-(3,4-dimethoxyphenyl-5-yl) ethyl] -1- (5-halo-2,3-dimethoxybenzyl) methylimide; S2: to obtain 2- (3,4-diimoxyphenyl) -N- (5-bromo-2,3-dimethoxybenzyl) ethylamine; S3: to obtain 2-(3,4-dimethoxyphenyl) -N- (5-bromo-2 S4: to obtain 12-halogenated berberine derivative; S5: to obtain berberine. The present invention is free from the application of the by-product o-vanillin synthesis of o-resveratal raw material constraints, synthesis of 5- substitute o-resveratal and piperine ethylamine, and the use of the two preparation of berberine hydrochloride, with raw materials readily available, mild reaction conditions, easy to operate, high chemical yield, low cost and other advantages.

PROCESS FOR STRAIGHTENING KERATIN FIBRES WITH A HEATING MEANS AND DENATURING AGENTS

The invention relates to a process for straightening keratin fibres, comprising: (i) a step in which a straightening composition containing at least two denaturing agents is applied to the keratin fibres, (ii) a step in which the temperature of the keratin fibres is raised, using a heating means, to a temperature of between 110 and 250° C.

PROCESS FOR THE PREPARATION OF PHENOLIC COMPOUNDS

Process for the preparation of hydroxytyrosol and its precursors (3,4- dihydroxyphenyl)-acetic acid C1-10-alkyl esters by hydrogenating in a C1-10-alkanol 3,4- mandelic acid or a 3,4-dihydroxymandelic acid C1-10-alkyl ester in the presence of a hydrogenation metal catalyst and optionally reducing the ester obtained to give hydroxytyrosol.

Methyltrioxorhenium: A new catalyst for the activation of hydrogen peroxide to the oxidation of lignin and lignin model compounds

The oxidative degradation of lignin under totally chlorine free conditions is one of the most relevant targets for the design of environmental friendly pulping and bleaching industrial processes. Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of both phenolic and non-phenolic lignin model compounds by use of hydrogen peroxide as primary oxidant. Three different technical lignins, hydrolytic sugar cane lignin (SCL), red spruce kraft lignin (RSL) and a hardwood organosolvent lignin (OSL), that are representative examples of widely diffused para-hydroxyphenyl-guaiacyl, guaiacyl and guaiacyl-syringyl lignins, were also extensively degraded under similar experimental conditions.

High selectivity in the oxidation of mandelic acid derivatives and in 0-methylation of protocatechualdehyde: New processes for synthesis of vanillin, iso-vanillin, and heliotropin

New synthetic procedures for vanillin, iso-vanillin, heliotropin, and protocatechualdehyde starting from catechol are described. The utilisation of statistical experimental design and multivariate modelling and the mechanistic interpretation of the acid and base catalysis in the condensation of catechol derivatives with glyoxylic acid and in the regiocontrolled methylation of protocatechualdehyde and of the Cu(II) salt catalysis in the oxidative decarboxylation of mandelic acid derivatives have allowed the development of new highly selective processes.

3-methoxy-4-hydroxyphenylglycol fluorescence polarization immunoassay

The present invention is directed to a fluoroescence polarization immunoassay for determining the 3-methoxy-4-hydroxyphenylglycol content in body fluids, to the various components needed for preparing and carrying out such an assay, and to methods of making these components. Specifically, tracers, immunogens and antibodies are disclosed, as well as methods for preparing them. The assay is conducted by measuring the degree of polarization of plane polarized light that has been passed through a sample containing antiserum and tracer.