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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1951165Generated: November 3, 2026

Hydrochloric Acid → HCID 67345696, compound

https://huagongshe.com/reaction/1951165

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Fluorophenyl isocyanateHCID 70955—
ReactantHCID 58379032HCID 58379032—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
ProductHCID 67345696HCID 6734569697.7%

Reaction Steps

Treat a solution of (R)-(4-(4-(4-fluorophenyl)phthalazin-1-yl)piperazin-2-yl)-methanol (0.15 g, 0.44 mmol) in CH2Cl2 (3 ml) with 1-fluoro-4-isocyanatobenzene (0.04 g, 0.31 mmol). Stir the reaction at ambient temperature for 30 min and then concentrate the reaction mixture. Purify the resulting residue by flash silica gel chromatography (0-50% EtOAc in hexanes, then switch to 3% MeOH in CH2Cl2) to yield a solid. Dissolve the solid in MeOH (1 mL) and treat with 1 N aqueous HCl (0.13 mL, 0.13 mmol). Concentrate the solution to obtain the title compound as a solid (0.065 g, 29%). ES/MS m/z 476.0 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08404687B2
Source datasetuspto-grants-2013_03
ORD IDord-8fd715f719b841aa837b6f85fb5ca3b3
Source noteuspto-grants-2013_03