60075-04-9Relevant articles and documents
Synthetic method 4 - alkoxyphenol compounds
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Paragraph 0064-0066, (2021/09/29)
The invention discloses a synthetic method of 4 - alkoxyphenol compounds, and belongs to the field of organic chemical synthesis. The method is as follows: An aryl alkyl ether compound is added to the sealing tube. The catalyst dimerization acetic acid rhodium and the oxidizing agent iodobenzene diethyl ester are added, a solvent trifluoroacetic anhydride is added, and the 4 -alkoxyphenol compound is prepared by heating reaction. To the invention, high regioselectivity direct hydroxylation of the aryl alkyl ether compound is realized, the application range of the substrate is wide, the yield is high, the activity after amplification reaction does not significantly decay, and higher yield is still obtained. The utility model has good practicability and industrial application prospect.
Method for synthesizing herbicide clodinafop-propargyl key intermediate
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Paragraph 0049, (2018/11/27)
The invention discloses a method for synthesizing a herbicide clodinafop-propargyl key intermediate. According to the method, methyl 2-chloropropionate and hydroquinone are used as starting raw materials, under the catalytic action of inorganic alkali, nucleophilic substitution reaction is conducted, and methyl (R,S)-2-(4-hydroxyphenoxy)propionate is obtained; the generated methyl (R,S)-2-(4-hydroxyphenoxy)propionate is subjected to resolution hydrolysis reaction under the action of aspergillus oryzae WZ007, and a methyl (R)-(+)-2-(4-hydroxyphenoxy)propionate product is obtained; the generatedproduct is subjected to hydrolysis reaction continuously to obtain a target product R(+)-2-(4-hydroxyphenoxy)propionic acid. The synthesis method is simple; in the synthesis process, thalli of the aspergillus oryzae WZ007 are used for catalyzing selective hydrolysis of a methyl (R,S)-2-(4-hydroxyphenoxy)propionate substrate, thus the R-configuration ester and the S-configuration acid are obtained, the purpose of resolution is achieved, moreover, the raw materials of the method are cheap, the production cost is low, and the economic performance is good, so that the method has good applicationprospects.
6-chlorobenzoxazol-oxyphenoxy propionate compound and application thereof
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Paragraph 0066-0069, (2017/08/18)
The invention belongs to the field of herbicides and particularly relates to a 6-chlorobenzoxazol-oxyphenoxy propionate compound and application thereof. The compound is shown in a general formula (I). The compound provided by the invention not only has e