摘要
敌草胺的外消旋体可以用成盐结晶法进行拆分。为了提高效率、节约成本，作者用通过成盐结晶法得到的晶种尝试用优先结晶法进行拆分，获得成功。得到两个光学异构体──Ｄ（－）敌草肢和Ｌ（＋）敌草胺，白色结晶，熔点９２℃，比旋光度分别为：［α］Ｄ—１３８．５°和［α］Ｄ＋１３８．７°。
The racemic Napropamide can be resolved with optical agents.In order to promote efficiency and save cost,the author conducted an experiment in which the resolution of racemic Napropamide by preferential crystallization was successful.Two optical active isomers──D(─)Napropamide(m.p.92℃,[α]D=-138.5°)and L(+)Napropamide(m.p.92℃,[α]D=+138. 7°)were obtained.
出处
《上海农业学报》
CSCD
1995年第3期79-80,共2页
Acta Agriculturae Shanghai
关键词
敌草胺
拆分
除草剂
Napropamide
Resolution
Herbicide
