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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1061585Generated: November 3, 2026

Methanol → HCID 131725197, compound

https://huagongshe.com/reaction/1061585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantFumaric AcidHCID 444972—
Reactant2-((4-(2-Pyridinyl)-1-piperazinyl)methyl)-1H-benzimidazoleHCID 5025739—
ProductHCID 131725197HCID 131725197—

Reaction Steps

2-[(4-Pyridin-2-ylpiperazin-1-yl)methyl]-1H-benzimidazole (10 g, 33.7 mmol) and fumaric acid (7.8 g, 67.4 mmol) were combined in methanol (100 mL) and stirred at room temperature for 4 hours. The suspension was filtered, washed with isopropanol (60 mL), and dried under reduced pressure to provide the title compound as a solid. Elemental analysis calc'd: C, 59.09; H, 5.39; N, 14.98. Found: C, 58.97; H, 5.22; N, 14.85. DSC: sharp endotherm at 177.26° C., followed by a smaller endotherm at 237.95° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06960589B2
Source datasetuspto-grants-2005_11
ORD IDord-eb3a5d23ba3946e8a029b883677ca7c3
Source noteuspto-grants-2005_11