HCID 13561831, compound → HCID 13561832, compound

Participants

Reaction Steps

14.1 g (0.04 mol) of 1-(2,2-dicyanoethen-1-yl)-2-(2,6-dichloro-4-trifluoromethylthio-phenyl)-hydrazine in 30 ml of ethylene glycol monoethyl ether are heated under reflux for 2 hours. Active carbon is added to the hot solution, the mixture is filtered and the filtrate is diluted with 60 ml of water. This precipitate which separtes out is filtered off under suction and dried. 9.8 g (70% of theory) of 5-amino-4-cyano-1-(2,6-dichloro-4-trifluoromethylthiophenyl)-pyrazole of melting point 185° C. to 187° C. are obtained. ##STR135##

Provenance & Evidence