1,3-Dimethyl-4-(2-nitro-5-methylbenzoyl)-5-pyrazolone 、 磺酰氯 以
苯 为溶剂,
反应 4.0h,
以to give 2.0 g of the desired product melting at 110° - 111° C. (Yield 64.72%)的产率得到4-chloro-2,5-dimethyl-4-(5-methyl-2-nitro-benzoyl)-2,4-dihydro-pyrazol-3-one
参考文献:
名称:
Pyrazolone derivatives and their use as herbicides