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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 620892Generated: October 24, 2026

Sodium Carbonate → Butenafine

https://huagongshe.com/en/reaction/620892

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant1-(Bromomethyl)-4-(1,1-dimethylethyl)benzeneHCID 87836—
ReactantN-Methyl-N-naphthylmethylamine hydrochlorideHCID 16211748—
SolventDimethylformamideHCID 6228—
ProductButenafineHCID 248494%

Reaction Steps

N-methyl-1-naphthylmethylamine hydrochloride (2.1 g; 0.01 mole) was dissolved in 50 ml of dry dimethylformamide, and 3.71 g (0.035 mole) of anhydrous sodium carbonate was added. The mixture was stirred at room temperature, and 2.49 g (0.011 mole) of p-t-butylbenzyl bromide was added. The mixture was reacted at 30° to 40° C. for 5 hours. Ice water was added to the reaction mixture, and the mixture was extracted with toluene. The organic layer was washed with water, and toluene was evaporated. The residue was chromatographed on a silica gel column, and eluted with 5% ethyl acetate/n-hexane. The eluate was concentrated to give 2.98 g (yield 94%) of an oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04822822
Source datasetuspto-grants-1989_04
ORD IDord-96d668be3870437ea6a038713631e2fa
Source noteuspto-grants-1989_04