摘要
以乙基磺酰基乙腈和丙二醛甲醇缩醛为起始原料,经五步反应得到除草剂砜嘧磺隆,并对砜嘧磺隆和中间体2-氯-3-乙基磺酰基吡啶、2-巯基-3-乙基磺酰基吡啶以及2-磺酰胺基-3-乙基磺酰基吡啶进行了1HNMR结构表征,证实了它们的结构.
Rimsulfron ,a kind of effective agricultural and horticultural herbicides, was synthesized by a five-step reaction from 1,1,3,3-tetramethoxypropane malonaldehyde bis(dimethyl acetal) and ethylsulfonyl acetonitrile as starting materials . The structure of rimsulfron and mind intermediates were comfimed by ^(1)HNMR.
出处
《精细化工中间体》
CAS
2005年第3期26-27,共2页
Fine Chemical Intermediates
关键词
除草剂
砜嘧磺隆
合成
sulfonylureas herbicides
rimsulfron
synthesis
