HCID 15030572, compound → HCID 15671973, compound

Participants

Reaction Steps

A mixture of 4-chloro-3-(5-chlorosulfonyl-2,4-dichlorophenyl)-1-methyl-5-methylthio-1H-pyrazole (7.71 g, 19 mmoles), 80 ml glacial acetic acid, and zinc dust (24.8 g, 380 mmoles) was subjected to reaction under reflux for 3.5 hours. The resulting solution was poured into ice-cold water, and the objective product was extracted with ethyl acetate. The extract solution was washed with water, dehydrated, and concentrated, giving the title compound (5.75 g) as oily matter, yield 89.1%.

Provenance & Evidence