[2,6-Dichloro-4-(trifluoromethyl)phenyl]hydrazine may be used for the synthesis of pyrazolo[4,3-d]isoxazole derivatives.It may also be used in the synthesis of followingN-(2,6-dichloro-4-trifluoromethyl)phenyl-N′-(1-phenylethylidene) hydrazines:N-(2,6-dichloro-4-trifluoromethyl)phenyl-N′-(1-phenylethylidene)hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(4-chlorophenyl)ethylidene]hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(3-chlorophenyl)ethylidene]hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(4-bromophenyl)-ethylidene]hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(3-bromophenyl)ethylidene]hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(4-methoxyphenyl)ethylidene]-hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(4-trifluoromethylphenyl)-ethylidene]hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(4-nitrophenyl)ethylidene]hydrazineN-(2,6-Dichloro-4-trifluoromethyl)phenyl-N′-[1-(6-methoxy-naphthalen-2-yl)-ethylidene]hydrazine