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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382520Generated: October 25, 2026

Oxalic Acid → (E)-1-(2-Pyrimidyl)-2-styryl-1H-benzimidazole oxalate

https://huagongshe.com/reaction/382520

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
Reactant2-ChloropyrimidineHCID 74404—
Reactant2-(2-Phenylethenyl)-1h-benzimidazoleHCID 242965—
Reactant(E)-1-(2-pyridyl)-2-styryl-1H-benzimidazoleHCID 9796241—
SolventEthyl AcetateHCID 8857—
Product(E)-1-(2-Pyrimidyl)-2-styryl-1H-benzimidazole oxalateHCID 9930183—

Reaction Steps

Free base of the titled compound was prepared from 2-styryl-1H-benzimidazole and 2-chloropyrimidine according to the preparation of (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole (Example 1, method B). The free base and oxalic acid were dissolved into ethyl acetate. Concentration and recrystallization from ethyl acetate/n-hexane yielded the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06310079B1
Source datasetuspto-grants-2001_10
ORD IDord-d0e501acd8bd441a9a50c84f5696825d
Source noteuspto-grants-2001_10