1,1,4-trichlorobut-3-en-2-one 、
偏二甲肼 在
viscous oil 作用下,
以
甲基叔丁基醚 为溶剂,
20.0~34.0 ℃
、4.0 kPa
条件下,
反应 2.62h,
以As the main fraction, 3 g of 3-dichloromethyl-N-methylpyrazole were obtained in a purity of 96.4% (GC area) (boiling point 65° C./0.3 mbar)的产率得到3-dichloromethyl-1-methyl-1H-pyrazole