tert-Butyl piperazine-1-carboxylate → tert-Butyl 4-[5-chloro-1-(4-chlorophenyl)-6-oxo-1,6-dihydro-4-pyridazinyl]-1-piperazine carboxylate

Participants

Role	Name	HCID	Charge
Reactant	tert-Butyl piperazine-1-carboxylate	HCID 143452	—
Reactant	4,5-Dichloro-2-(4-chlorophenyl)-3(2H)-pyridazinone	HCID 779402	—
Product	tert-Butyl 4-[5-chloro-1-(4-chlorophenyl)-6-oxo-1,6-dihydro-4-pyridazinyl]-1-piperazine carboxylate	HCID 58585184	—

By general method 1 from 20.66 g (75 mmol) of 2-(4-chlorophenyl)-4,5-dichloropyridazin-3-one with 25.14 g (135 mmol) of Boc-piperazine.