δ-(2-methyl-5-nitroimidazole-1-ethanol ) (EDTA-2MN) is synthesized from ethylenediamine-tetra-acetic acid anhydride (EDTAA) and 2-methyl-5-nitroimidazole-1-ethanol (metronidazole,MN) by microwave irradiation method. Based on the designed orthogonal experiment
the effects of the molar ratio of the reactants
reaction time and reaction temperature on the yield are investigated. The results indicate that the yield is more than 80% under the reaction condition as follows: the molar ratio of EDTAA to MN is 1∶2.5
the reaction time is 30 minutes and the reaction temperature is 110 ℃. Compared with the conventional method of esterification reaction
the distinct advantages of the microwave irradiation method are short reaction time
high yield and good repeatability. And the structure of the product is characterized by FT-IR