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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42184Generated: October 26, 2026

Water → 1-Benzyl-4-[4-(4-nitro-phenyl)-piperidine-1-yl]-phthalazine

https://huagongshe.com/reaction/42184

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-Benzyl-4-chlorophthalazineHCID 6404566—
Reactant4-(4-Nitrophenyl)piperidineHCID 15925817—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product1-Benzyl-4-[4-(4-nitro-phenyl)-piperidine-1-yl]-phthalazineHCID 5924056881.6%

Reaction Conditions

Temperature150 °C

Reaction Steps

To a solution of 1-benzyl-4-chloro-phthalazine (1.08 g, 4.04 mmol) in 8 mL NMP is added 4-(4-nitro-phenyl)piperidine (1 g, 4.85 mmol), TEA (1.68 mL, 12.12 mmol). The reaction mixture was heated to 150° C. for 45 min in a microwave reactor. Water was added to the reaction mixture to form a precipitate and the solid is collected by filtration and dried under vacuum. The resulting solid is purified by HPLC with acetonitril in water (from 20% to 100% with 3% 1-propanol) at 220 nm wavelength detection to provide the title compound (1.4 g, 78%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536168B2
Source datasetuspto-grants-2013_09
ORD IDord-74ca62b13cd84576afb3e3deb18b2930
Source noteuspto-grants-2013_09