Synthetic Route of 3279-95-6, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.3279-95-6, name is 2-(Aminooxy)ethanol, molecular formula is C2H7NO2, molecular weight is 77.08, as common compound, the synthetic route is as follows.
Method B: To a solution of 2-(2-chloro-4-iodo-phenylamino)-3,4-difluoro-benzoic acid pentafluorophenyl ester (10.0 g, 17.4 mmol) in anhydrous dimethylformamide (36 mL) was added 2-(aminooxy)-ethanol (1.6 g, 20.8 mmol) and N,N-diisopropylethylamine (6.0 mL, 34.8 mmol). The resultant solution was stirred at ambient temperature for 16 h. The reaction mixture was concentrated to 20% volume then diluted with ethyl acetate (360 mL). The resultant solution was washed with water (6*60 mL) and brine (2*60 mL). The organics were dried over anhydrous magnesium sulfate and concentrated under reduced pressure to afford a white solid that was purified on silica gel. Elution with ethyl acetate-methanol (9:1) afforded 2-(2-chloro-4-iodo-phenylamino)-3,4-difluoro-N-(2-hydroxy-ethoxy)-benzamide (7.31 g, 90%) as a white solid. Recrystallization from methanol afforded analytically pure material, identical in all respects to the material prepared by method A.
Statistics shows that 3279-95-6 is playing an increasingly important role. we look forward to future research findings about 2-(Aminooxy)ethanol.
Reference:
Patent; Barrett, Stephen Douglas; Biwersi, Cathlin Marie; Chen, Michael Huai Gu; Kaufman, Michael David; Tecle, Haile; Warmus, Joseph Scott; US2004/54172; (2004); A1;,
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