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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 703453Generated: October 30, 2026

1-Phenylpiperazine → 2-{2-[4-(4-fluorobenzoyl)-piperidin-1-yl]-ethyl}-7-nitro-1-(2H)-phthalazinone hydrochloride

https://huagongshe.com/reaction/703453

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-PhenylpiperazineHCID 7096—
Reactant4-(4-Fluorobenzoyl)piperidineHCID 2724440—
Reactant2-(2-chloroethyl)-6,7-dimethoxy-1(2H)-phthalazinoneHCID 15391923—
Reactant2-(2-chloroethyl)-7-nitro-1(2H)-phthalazinoneHCID 22150173—
SolventEthanolHCID 702—
Product2-{2-[4-(4-fluorobenzoyl)-piperidin-1-yl]-ethyl}-7-nitro-1-(2H)-phthalazinone hydrochlorideHCID 22150159—

Reaction Steps

Working as described in Example 3 but replacing 2-[2-chloroethyl]-6,7-dimethoxy-1(2H)-phthalazinone with an equivalent amount of 2-(2-chloroethyl)-7-nitro-1(2H)-phthalazinone and replacing N-phenyl piperazine with an equivalent amount of 4-(4-fluorobenzoyl)-piperidine, 2-{2-[4-(4-fluorobenzoyl)-piperidin-1-yl]-ethyl}-7-nitro-1-(2H)-phthalazinone hydrochloride is obtained (m.p. 280°-285° C., from ethyl alcohol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04983606
Source datasetuspto-grants-1991_01
ORD IDord-c55d85288d68408284aa028bbf823137
Source noteuspto-grants-1991_01