Quaternarysalt of chitosan was synthesized starting from chitosan , triethylamine and ethyl chloroacetate by ester exchange reaction.
以三乙胺 、 氯乙酸乙酯和壳聚糖等为原料,采用酯交换法合成了壳聚糖季铵盐.
Methyl 2, 6 - dichlorophenoxyacetate is prepared with 2, 6 - dichlorophenol , sodium methoxide and methyl chloroacetate as raw materials.
以2, 6- 二氯苯酚 、 甲醇钠甲醇溶液和氯乙酸甲酯为原料,合成了2, 6-二氯苯氧乙酸甲酯.
Aceclofenac was synthesized in 82 % overall yield from sodium diclofenac and t - butyl chloroacetate viaesterification and hydrolysis.
双氯芬酸钠与氯乙酸叔丁酯经酯化、水解反应制得非甾体抗炎药醋氯芬酸,收率82%.