Ethyl Trifluoroacetate is an intermediate used in the synthesis of various pharmaceutically active molecules and agricultural products. Ethyl Trifluoroacetate is also useful for the preparation of tri
fluoroacylated compounds.
제조 방법
Trifluoroacetic acid and ethanol were used as starting materials with strong-acid cation exchange resin as catalysts at 40 ~ 50 she℃. Add ethanol drop and temperature rising reflux divides the mixture of water and ethanol. After that, collect the mix of thick product ethanol and Ethyl trifluoroacetate. The crude product collected is added a small amount of water, and layering can obtain a content of more than 99.5%. The qualified product Ethyl trifluoroacetate, whose moisture is less than 0.1%, yields more than 95%.
Purification Methods
Fractionate it through a long Vigreux column (p 11). IR has max at 1800 (CO2) and 1000 (OCO) cm-1 [Fuson et al. J Chem Phys 20 1627 1952, Bergman J Org Chem 23 476 1958]. [Beilstein 2 IV 463.]
