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Synthesis of an Intermediate of Non ionic X ray Contrast Agent, 1 Amino 2,3 propanediol

Zhang Fugen, Miao Weirong (State Key Laboratory of Fine Chemical Engineering,Dalian University of Technology,Postcode 116012)  
Synthesis of an important intermediate of non ionic X ray contrast agent,1 amino 2,3 propanediol,including acidic hydrolysis of epoxy chloropropane and then amination with 25% ammonia water,was described.The influence of the acidity of reaction media on the hydrolysis was investigated.The purification procedure of 1 amino 2,3 propanediol was improved to raise the yield of amination from about 70% to above 90%.
【CateGory Index】: TQ223.162
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