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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1689943Generated: November 2, 2026

1,4-Dichlorophthalazine → HCID 86627843, compound

https://huagongshe.com/reaction/1689943

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DichlorophthalazineHCID 78490—
Reactant2,5-Dimethylpiperazine, trans-HCID 220672—
SolventDichloromethaneHCID 6344—
ProductHCID 86627843HCID 86627843—

Reaction Conditions

Temperature130 °C

Reaction Steps

1,4-dichlorophthalazine (1.0 g, 5 mmole) and trans-2,5-dimethyl piperazine were combined in a reaction vial and heated to 130° C. for 3 h with stirring. After cooling to room temperature, the solid residue was dissolved in 150 mL of dichloromethane and washed with 1×20 mL of 1:1 saturated NaHCO3 solution:H2O and 1×20 mL of saturated NaCl solution. The organic phase was dried over MgSO4, filtered, and concentrated. Purification by column chromatography (100:5:1 dichloromethane:methanol:triethylamine) afforded 1-chloro-4-(trans-2,5-dimethylpiperazin-1-yl)phthalazine. MS (M+H)+=277.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08153633B2
Source datasetuspto-grants-2012_04
ORD IDord-d3f224c7e3bd4cdea1f873fc8f9fa419
Source noteuspto-grants-2012_04