Reaction of 4,5-dichloro-2-chloromethylpyridazin-3(2H)-one with phenols
(Chemical Equation Presented) The regiochemistry was investigated for the reaction of 2-chloromethyl-4,5-dichloropyridazin-3(2H)-one (1) with some phenols 2 in the presence of a base in organic solvents. Seven diphenoxy derivatives 5 were synthesized sele