【摘要】 玉嘧磺隆是杜邦公司研发成功的磺酰脲类除草剂。以3-乙基磺酸-2-吡啶磺酰胺为原料,在二氯亚砜的作用下生成亚硫酰吡啶磺酰胺,然后再和三光气反应得到磺酰胺异氰酸酯,不需要提纯直接和2-胺基-4,6-二甲氧基嘧啶加成即得到玉嘧磺隆。此方法提高原子经济性。提供了一条新的合成玉嘧磺隆的方法。更多还原

【Abstract】 Rimsulfuron is a sulfonylurea herbicides that was successfully developed by DuPont company in the mid -80.3 -ethylsulfonyl-2-pyridinesulfonamide reacted with dichloro sulfoxide,a N-Sulfinylsulfonamide pyridine was obtained,which was reacted with Triphosgene to the corresponding isocyanate.It was then further reacted 2 -amino -4,6 -dimethoxypyrimidine without purification to obtain Rimsulfuron.This method provides a new approach to synthesize the target compound.更多还原