新型除草剂玉嘧磺隆的合成研究  

Synthesis of Sulfonylurea Herbicide Rimsulfuron

作　　者：卢鑫鑫[1] 杨鑫骥[1] 翁建全[1] 沈德隆[1] 

机构地区：[1]浙江工业大学化学工程与材料学院,杭州310032

出　　处：《现代农药》2007年第3期13-15,共3页MODERN AGROCHEMICALS

摘　　要：玉嘧磺隆是磺酰脲类除草剂。以乙磺酰基乙腈和1,1,3,3-四甲氧基丙烷为起始原料,经消除加成、取代、环合、硫代、磺酰胺化、缩合六步反应合成得到玉嘧磺隆,总收率(以乙磺酰基乙腈计)38.8%,含量大于98.5%。产物及中间体结构经1HNMR、MS表征,结构正确。Rimsulfuron is a sulfonylurea herbicide. It was synthesized from 1,1,3,3-tetramethoxypropane and ethylsulfonyl acetonitrile as starting materials, by six steps including elimination-addition, displacement, cyclization, sulfuration, sulfonamination and condensation. The total yield was 38.8%, and the content was above 98.5%. The structures of product and intermediates were comfimed by ^1H NMR and MS.

关 键 词：玉嘧磺隆 吡啶 固体光气 

分 类 号：TQ457.23[化学工程—农药化工]