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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1628935Generated: November 1, 2026

2-Methyl-4-methoxyaniline → HCID 57786358, compound

https://huagongshe.com/reaction/1628935

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methyl-4-methoxyanilineHCID 7610—
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantHCID 68765133HCID 68765133—
SolventO-XyleneHCID 7237—
SolventSodium BicarbonateHCID 516892—
ProductHCID 57786358HCID 5778635860%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of methyl 4-bromo-2-chloro-1-(3-chloropropyl)-1H-benzimidazole-7-carboxylate (429 mg, 1.17 mmol), 4-methoxy-2-methylaniline (0.301 mL, 2.34 mmol) and p-toluenesulfonic acid monohydrate (0.0223, 0.117 mmol) in o-xylene (2.4 mL) was stirred at 120° C. for 3 days, and diluted with aqueous sodium bicarbonate. The resultant mixture was extracted with ethyl acetate. The extract was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on NH silica gel eluting with a 10-40% ethyl acetate/n-hexane gradient mixture to give the title compound as a brown solid (301 mg, 0.700 mmol, 60%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785460B2
Source datasetuspto-grants-2014_07
ORD IDord-eacc02d802954c6fbab3d454345127c7
Source noteuspto-grants-2014_07