2989-17-5

Upstream product

• 67-56-1 methanol 
• 1878-49-5 o-methylphenoxyacetic acid 
• 96-32-2 bromoacetic acid methyl ester 
• 95-48-7 ortho-cresol 
• 96-34-4 methyl chloroacetate 
• 57548-58-0 Sodium; o-tolyloxy-acetate 
• 74-88-4 methyl iodide 

Downstream Products

• 36304-37-7 o-tolyloxyacetic acid hydrazide 
• 94068-30-1 N,N'-bis-o-tolyloxyacetyl-hydrazine 
• 1878-49-5 o-methylphenoxyacetic acid 
• 95-48-7 ortho-cresol 
• 115057-32-4 methyl 4-(4'-methoxybenzoyl)-2-methylphenoxyacetate 
• 115057-30-2 {4-[[(S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyrylamino]-(4-methoxy-phenyl)-methyl]-2-methyl-phenoxy}-acetic acid 
• 56077-82-8 (4-chlorosulfonyl-2-methyl-phenoxy)-acetic acid methyl ester 
• 2436-73-9 methyl 2-(4-chloro-2-methylphenoxy)acetate 
• 1713-12-8 n-butyl 4-chloro-2-methylphenoxyacetate 
• 15516-43-5 (2-methylphenoxy)acetyl chloride 
• 2867-53-0 (4-Bromo-2-methyl-phenoxy)-acetic acid methyl ester 
• 145089-11-8 <4-<<<9H-fluoren-9-yl-methoxycarbonyl>amino>(4-methoxyphenyl)methyl>-2-methylphenoxy>acetic acid 
• 119736-43-5 4-(4'-methoxybenzoyl)-2-methylphenoxyacetic acid 
• 115057-35-7 <4-<(4-methoxyphenyl)methyl>-2-methylphenoxy>acetic acid 

Relevant academic research and scientific papers

Preparation method of 2-methyl-4-chloro-phenoxyacetic acid

The invention belongs to the technical field of pesticide synthesis, and particularly relates to a 2-methyl-4-chloro-phenoxyacetic acid preparation method, which uses o-methylphenol sodium as a reactant, and uses an organic phase methyl chloroacetate solution as a reaction solvent in a condensation reaction. The method has the advantages that the method is simple; in the condensation reaction, anorganic phase methyl chloroacetate solution is used as a reaction solvent to replace a water phase in the traditional technology; and the organic phase can be continued to the subsequent chlorinationreaction, so that the problems of decomposition of sodium chloroacetate and low reaction yield can be solved, no wastewater can be generated in the production of MCPA sodium salt, the yield can be greatly improved, and the method is a green and environment-friendly synthesis method.

Design and Synthesis of Novel 4-Hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one Derivatives for Use as Herbicides and Evaluation of Their Mode of Action

In order to develop a novel herbicide containing the β-triketone motif, a series of 4-hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one derivatives were designed and synthesized. The bioassay results showed that compound II15 had good pre-emergent herbicidal activity even at a dosage of 187.5 g ha-1. Moreover, compound II15 showed a broader spectrum of weed control when compared with a commercial herbicide 2,4-dichlorophenoxyacetic acid (2,4-D), and displayed good crop safety to Triticum aestivum L. and Zea mays Linn. when applied at 375 g ha-1 under pre-emergence conditions, which indicated its great potential as a herbicide. More importantly, studying the molecular mode of action of compound II15 revealed that the novel triketone structure is a proherbicide of its corresponding phenoxyacetic acid auxin herbicide, which has a herbicidal mechanism similar to that of 2,4-D. The present work indicates that the 4-hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one motif may be a potential lead structure for further development of novel auxin-type herbicides.

Preparation method of phenoxyacetic ester

The invention provides a preparation method of phenoxyacetic ester, wherein the preparation method includes the following steps: A) carrying out esterification reaction of acetic acid and alcohol to obtain acetic ester; B) introducing chlorine gas into acetic ester, and carrying out reaction to obtain chloroacetic ester; C) dehydrating a phenol compound and alkaline hydroxide into a salt in an organic solvent to obtain a salt of the phenol compound; D) after salt formation, mixing with chloracetic ester prepared in the step B), and carrying out condensation reaction to obtain phenoxyacetic ester, wherein the organic solvent is a mixture of any two kinds of toluene, xylene, chlorobenzene, phenol, butanol and isobutanol. The phenol is dehydrated into the salt in the mixed organic solvent, the system still maintains a uniform state in the dehydration process, continuous production is achieved, the dehydration efficiency is high and the efficiency of the whole production process is high. Moreover, the raw materials are easy to obtain, the production period is short, water is not needed in the reaction process, the energy consumption is low, the production cost is low, the yield of acetic acid is 99% or more, and the total yield of phenol can reach 99% or more.

A phenoxy carboxylic acid ester herbicide preparation method (by machine translation)

The invention provides a phenoxy carboxylic acid ester herbicide preparation method, including: S1, phenol in the presence of alkaline substance with the chlorinated carboxylic acid ester condensation reaction, phenoxy carboxylic acid ester obtained; the ClR states the chloro- carboxylic acid ester of the general formula1 COOR, R1 Is C1 - 3 alkylene or alkylidene, R is C1 - 10 alkyl or C3 - 10 cycloalkyl; S2, the [...] ester in the 1st and 2nd catalyst the presence of a catalyst, with the chlorinating agent to carry out the selective chlorination of, get [...] ester; the Lewis acid catalyst is selected from the 1st, the 2nd catalyst is C5 - 22 of the thioether, thiazole, thiophene compounds or different benzisothiazoles; S3, will the [...] ester with an alcohol reaction, as shown in formula I phenoxy carboxylic acid ester herbicide; R3 Is H, Cl or CH3 , R ' is a C4 - 20 alkyl or cycloalkyl. This invention can improve the product quality and the production environment, three waste low. (by machine translation)

Synthesis and biological evaluation of phenoxyacetic acid derivatives as novel free fatty acid receptor 1 agonists

Free fatty acid receptor 1 (FFA1) is a new potential drug target for the treatment of type 2 diabetes because of its role in amplifying glucose-stimulated insulin secretion in pancreatic β-cell. In the present studies, we identified phenoxyacetic acid derivative (18b) as a potent FFA1 agonist (EC50 = 62.3 nM) based on the structure of phenylpropanoic acid derivative 4p. Moreover, compound 18b could significantly improve oral glucose tolerance in ICR mice and dose-dependently reduced glucose levels in type 2 diabetic C57BL/6 mice without observation of hypoglycemic side effect. Additionally, compound 18b exhibited acceptable PK profiles. In summary, compound 18b with ideal PK profiles exhibited good activity in vitro and in vivo, and might be a promising drug candidate for the treatment of diabetes mellitus.

Aza-Michael addition of acrylonitrile with 2-aryloxymethylbenzimidazole derivatives under microwave irradiation

A simple, rapid, and highly efficient method has been developed for the aza-Michael addition of acrylonitrile to 2-aryl-oxymethylbenzimidazole derivatives in the presence of anhydrous potassium carbonate under microwave irradiation. A series novel of 1-cyanoethyl-2-aryloxymethylbenzimidazole derivatives have been prepared and characterised by 1H NMR, 13C NMR, IR spectra and elemental analysis.

Discovery of highly potent and selective benzyloxybenzyl-based peroxisome proliferator-activator receptor (PPAR) δ agonists

A series of 1,4-benzyloxybenzylsulfanylaryl carboxylic acids were prepared and their activities for PPAR receptor subtypes (α, δ, and γ) with potential indications for the treatment of dyslipidemia were investigated. Analog 13a displayed the greatest binding affinity (IC50 = 10 nM) and selectivity (120-fold) for PPARδ over PPARα. Many of the analogs investigated were found to be highly selective for PPARδ and were dependent on the point of attachment of the substituent. In the 1,4-series, analog 28e was found to be the most potent (IC50 = 1.7 nM) and selective (>1000-fold) compound for PPARδ. None of the compounds tested showed appreciable binding affinity for PPARγ.

COMPOUNDS AND COMPOSITIONS AS PPAR MODULATORS

The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of the Peroxisome Proliferator-Activated Receptor (PPAR) fam

OXAZOLE AND THIAZOLE PPAR MODULATORS

The invention provides compounds (I) pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of the Peroxisome Proliferator-Activated Receptor (PPAR) families, particularly the activity of PPARδ.

A rapid and high-yield synthesis of aryloxyacetic acid in one pot under microwave irradiation and phase transfer catalysis conditions

A series of aryloxyacetic acid 3a-h has been synthesized in one pot under microwave irradiation and phase transfer catalysis conditions. By the optimization of the reaction condition, a rapid, high-yield and efficient method for the preparation of aryloxyacetic acid is reported.