Preparation method of alkylphenol medicine analogue NPA
A technology of nonanoic acid phenol and alkylphenol, which is applied in the preparation of organic compounds, carboxylate salts, chemical instruments and methods, etc., can solve the problems of long detection time, expensive instruments, complicated processing, etc., and meet the requirements of immune research needs, the synthesis steps are simple, and the effect of high product purity
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[0029] The process preparation steps of nonanoic acid phenol NPA:
[0030] (1) Synthesis of compound 2:
[0031] Add compound 1 azelaic acid (353 mg, 1.875 mmol) and compound 1′ dimethyl azelate (405 mg, 1.875 mmol) into a 25 mL round bottom flask, then add 5 mL tetrahydrofuran THF, stir overnight at room temperature, after the reaction is complete , the reaction solution was concentrated to obtain the crude product which was directly used in the next reaction (0.75 g, yield: 100%).
[0032] (2) Synthesis of Compound 3:
[0033] Add methyl hydrogen azelate (0.75 g, 3.71 mmol) and thionyl chloride (1.5 mL) into a 25 mL round bottom flask, add two drops of DMF dropwise to the reaction solution, and heat the reaction solution to reflux for two hours. The reaction solution was distilled to remove thionyl chloride, and dichloromethane was used to take out residual thionyl chloride. Compound 3 was obtained (0.82 g, yield: 100%).
[0034] (3) Synthesis of Compound 4:
[0035] Ad...
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