603-80-5

Usage

Chemical Properties

Light Yellow Crystalline Solid

Uses

3-Hydroxy-2-methylbenzoic Acid (cas# 603-80-5) is a compound useful in organic synthesis.

InChI:InChI=1/C8H8O3/c1-5-6(8(10)11)3-2-4-7(5)9/h2-4,9H,1H3,(H,10,11)/p-1

Upstream product

• 489-78-1 1-amino-5-hydroxynaphthalene-7-sulphonic acid 
• 38251-40-0 5-amino-naphthalene-1,7-disulfonic acid 
• 6654-64-4 naphthalene-1,3,5-trisulphonic acid 
• 52130-17-3 3-amino-2-methylbenzoic acid 
• 60-29-7 diethyl ether 
• 7664-93-9 sulfuric acid 
• 18583-89-6 methyl 3-amino-2-methylbenzoate 
• 55289-06-0 3-methoxy-2-methylbenzoic acid 
• 7499-08-3 3-chloro-2-methylbenzoic acid 
• 59382-59-1 2-methyl-3-nitro-benzoic acid methyl ester 
• 133232-56-1 3-iodo-2-methylbenzoic acid 
• 170240-13-8 Ethyl (+/-)-3-methylene-7-oxabicyclo<2.2.1>hept-5-ene-2-carboxylate 
• 3260-87-5 3-chloro-o-cresol 
• 1975-50-4 2-methyl-3-nitrobenzic acid 

Downstream Products

• 141607-09-2 ethyl 3-hydroxy-2-methylbenzoate 
• 42981-93-1 3-methoxy-2-methylbenzoic acid methyl ester 
• 55289-06-0 3-methoxy-2-methylbenzoic acid 
• 186537-85-9 KNI-577 

Relevant academic research and scientific papers

Synthesis process 2 - methyl -3 - methoxybenzoic acid

The invention discloses a synthesis process of 2 - methyl -3 - methoxybenzoic acid, which comprises the following steps: (1) reducing hydrogenation reaction: taking 2 - methyl -3 - nitrobenzoic acid or 2 - methyl -3 - nitrobenzoate as raw materials and methanol as a solvent. The hydrogen is a hydrogen source, and palladium carbon or platinum carbon is used as a catalyst to prepare 3 - amino -2 - methyl benzoic acid or 3 - amino -2 - methyl benzoic acid methyl ester by hydrogenation reduction. (2) Diazotization and hydrolysis and esterification one-pot reaction: preparing and hydroxyl 3 - methyl benzoic acid methyl ester by carrying out diazotization and hydrolysis -2 - esterification reaction under the action of a reducing product as a raw material and methanol as a solvent and a diazotization reagent. (3) Methylation reaction: methyl benzoate serving 3 - hydroxyl -2 - is used as a raw material, dimethyl sulfate is used as a methylation reagent, and methyl benzoate is produced 3 - methoxy -2 - methyl benzoate in the presence of a base. (4) Hydrolysis Reaction: methyl 3 - methoxy -2 - methyl benzoate and base. Water is mixed, heated and hydrolyzed, the reaction is complete, the product precipitated by acid conditioning PH through 1-3, filtered, and dried to obtain 3 - methoxy -2 -methylbenzoic acid.

Copper and L-(?)-quebrachitol catalyzed hydroxylation and amination of aryl halides under air

L-(?)-Quebrachitol, a natural product obtained from waste water of the rubber industry, was utilized as an efficient ligand for the copper-catalyzed hydroxylation and amination of aryl halides to selectively give phenols and aryl amines in water or 95percent ethanol. In addition, the hydroxylation of 2-chloro-4-hydroxybenzoic acid was validated on a 100-g scale under air.

Application of quebrachitol in hydrolysis reaction of copper-catalyzed aryl halide

The invention belongs to the technical field of drug synthesis, and provides application of quebrachitol in a hydrolysis reaction of a copper-catalyzed aryl halide. According to the hydrolysis reaction, copper serves as a catalyst, quebrachitol serves as a ligand, and the hydrolysis reaction is carried out on the aryl halide. The invention further provides a catalytic system of the hydrolysis reaction of the aryl halide. The reaction system comprises the copper catalyst, the quebrachitol, alkali and water, and the system is environmentally friendly and is suitable for industrial application.

Aryl carboxylic acid and aryl tetrazole derivatives as IP receptor modulators

This invention relates to compounds which are generally IP receptor modulators, particularly IP receptor agonists, and which are represented by Formula I: wherein R1, R2, R3, R4, R5, A, and B are as defined in the specification, and individual isomers, racemic or non-racemic mixtures of isomers, and pharmaceutically acceptable salts or solvates thereof. The invention further relates to pharmaceutical compositions containing such compounds and methods for their use as therapeutic agents.

Process for making 2-alkyl-3-hydroxybenzoic acids

A two step process is described for making 2-alkyl-3-hydroxybenzoic acids or derivatives of benzoic acids by first reacting an allenyl ester or equivalent with furan followed by the ring-opening reaction of the derived bicyclo intermediate with base. The

Process for synthesizing benzoic acids

A nucleophilic substitution reaction on optionally substituted dihalobenzenes is carried out in the presence of an optional catalyst followed by formation of and subsequent carboxylation of a Grignard reaction intermediate. In particular the present invention provides a process leading to optionally substituted hydroxybenzoic, alkanoyloxybenzoic, formyloxybenzoic and alkoxybenzoic acids from 1-substituted 2,6-dihalobenzenes. The invention also provides a process for the direct formation of an acyl chloride from a Grignard reagent by quenching with phosgene.

Bicyclic inhibitors of protein farnesyl transferase

PCT No. PCT/US98/03025 Sec. 371 Date Aug. 2, 1999 Sec. 102(e) Date Aug. 2, 1999 PCT Filed Feb. 11, 1998 PCT Pub. No. WO98/34921 PCT Pub. Date Aug. 13, 1998The present invention provides compounds of Formula (I). The present invention also provides a metho

Synthesis of isothiochroman 2,2-dioxide and 1,2-benzooxathiin 2,2- dioxide gyrase B inhibitors

The design, synthesis and in vitro biological evaluation of isothiochroman 2,2-dioxide and 1,2-benzooxathiin 2,2-dioxide analogues of coumarin inhibitors of gyrase B are described. Compared to coumarin derivatives, compounds of the 1,2-benzooxathiin 2,2-dioxide series display improved inhibitory potency in negative supercoiling of relaxed DNA gyrase. (C) 2000 Elsevier Science Ltd.

Relationships between structure and molting hormonal activity of tebufenozide, methoxyfenozide, and their analogs in cultured integument system of Chilo suppressalis Walker

The molting hormonal activity of methoxyfenozide (RH-2485), tebufenozide (RH-5992), five analogs with various alkyl groups, and 18 acyl analogs was measured by using cultured integument of rice stem borers, Chilo suppressalis Walker. The hormonal activity of methoxyfenozide was remarkably high (EC50 = 1.1 x 10-9 M), being equivalent to that of tebufenozide (RH-5992). The hormonal activity of several tebufenozide analogs with varying alkyl groups such as CH3, n-C3H7, i-C3H7, n-C4H9 and n-C5H11 at the para-position of the benzene ring furthest from the tert-butyl group was lower than that of tebufenozide (alkyl group is C2H5). The activity decreased to varying degrees as a result of replacement of the 3,5-dimethylphenyl moiety of tebufenozide with either a phenyl, naphthyl, or cyclohexyl group. Both 1- and 2-naphthyl derivatives were very active (EC50 = 4.3 x 10-8 M and 3.2 x 10-8 M, respectively) without any significant difference between them. The activity of the 1-cyclohexenyl analog (EC50 = 1.0 x 10-7 M) was about 40x that of the corresponding 3-cyclohexenyl analog (EC50 = 4.4 x 10-6 M), but 1/100 that of tebufenozide. The activity varied parabolically with respect to the molecular hydrophobicity, and decreased with longer acyl moieties. Copyright (C) 2000 Elsevier Science Inc.

Process for making 2-alkyl-3-hydroxybenzoic acids

A two step process is described for making 2-alkyl-3-hydroxybenzoic acids or derivatives of benzoic acids by first reacting an allenyl ester or equivalent with furan followed by the ring-opening reaction of the derived bicyclo intermediate with base. The