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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1533753Generated: November 3, 2026

Water → HCID 18354978, compound

https://huagongshe.com/reaction/1533753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1-BromopropaneHCID 7840—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 2-methyl-1H-benzimidazole-4-carboxylateHCID 18355001—
SolventDimethylformamideHCID 6228—
ProductHCID 18354978HCID 18354978—

Reaction Steps

To a solution of methyl 2-methyl-1 H-benzimidazole-4-carboxylate (250 mg) in N,N-dimethylformamide (4 ml) were added potassium carbonate (363 mg) and n-propyl bromide at ambient temperature and the mixture was stirred at the same temperature for 2 days. The reaction mixture was poured into water and the aqueous solution was extracted with ethyl acetate. The organic layer was washed with water and brine and the solution was dried over magnesium sulfate. The solvent was evaporated in vacuo and the residue was chromatographed on silica gel eluting with a mixture of n-hexane and ethyl acetate (1:1˜1:2˜1:3˜ethyl acetate only) to give methyl 2-methyl-1-propyl-1 H-benzimidazole-4-carboxylate (173 mg) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06207693B1
Source datasetuspto-grants-2001_03
ORD IDord-699f0cd223034af3a109e1118af17d2c
Source noteuspto-grants-2001_03