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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1504219Generated: November 1, 2026

Water → 5-(1H-Benzimidazol-2-ylmethyl)-2-methyl-5H-furo[3,2-c]pyridine-4-one

https://huagongshe.com/reaction/1504219

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantO-PhenylenediamineHCID 7243—
ReactantSodium BisulfiteHCID 23665763—
Reactant5-(2,2-Dihydroxyethyl)-2-methyl-5H-furo[3,2-c]pyridine-4-oneHCID 66960000—
SolventEthanolHCID 702—
Product5-(1H-Benzimidazol-2-ylmethyl)-2-methyl-5H-furo[3,2-c]pyridine-4-oneHCID 6696007580.3%

Reaction Steps

5-(2,2-Dihydroxyethyl)-2-methyl-5H-furo[3,2-c]pyridine-4-one (2.1 g) and o-phenylenediamine(1.1 g) were suspended in ethanol(20 ml). Sodium hydrogensulfite(5.2 g) was added, and the mixture was heated and stirred overnight under reflux. The reaction mixture was cooled to room temperature. Water was added thereto and the precipitated insoluble matter was separated, washed with water, and dried to give the title compound(2.25 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09212187B2
Source datasetuspto-grants-2015_12
ORD IDord-6d1a39033ebb475aa1f79dd8f23ad6b6
Source noteuspto-grants-2015_12