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

HRID 2252279

Reaction equation

HRID 2252279 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:13](=[O:14])[C:12]([Cl:15])=[C:11](Cl)[CH:10]=[N:9]2)=[CH:4][CH:3]=1.[C:17]([N:24]1[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]1)([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18]>>[Cl:15][C:12]1[C:13](=[O:14])[N:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=2)[N:9]=[CH:10][C:11]=1[N:27]1[CH2:26][CH2:25][N:24]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:29][CH2:28]1

Participants

3

Reactant 2

HCID 143452tert-Butyl piperazine-1-carboxylateHCID 7794024,5-Dichloro-2-(4-chlorophenyl)-3(2H)-pyridazinone

Product 1

HCID 58585184tert-Butyl 4-[5-chloro-1-(4-chlorophenyl)-6-oxo-1,6-dihydro-4-pyridazinyl]-1-piperazine carboxylate

Procedure

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.

Sources & evidence

ORD record
ord-bd1cf704a1e743c0bfabb7300c9d38c0
Source dataset
uspto-grants-2008_01
Patent number
US07320977B2

Linked notes

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