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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2189591Generated: October 29, 2026

Water → N-(4,4-dimethyl-chroman-7-yl)-acetamide

https://huagongshe.com/reaction/2189591

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantN-[3-(3-methyl-but-3-enyloxy)-phenyl]-acetamideHCID 57567384—
SolventFluorobenzeneHCID 10008—
ProductN-(4,4-dimethyl-chroman-7-yl)-acetamideHCID 5747021454%

Reaction Steps

A mixture of N-[3-(3-methyl-but-3-enyloxy)-phenyl]-acetamide (2.5 g, 11.4 mmol) and AlCl3 (4.52 g, 34.3 mmol) in fluoro-benzene (50 mL) was heated at reflux overnight. After cooling, the reaction mixture was poured into water. The organic layer was separated and the aqueous phase was extracted with EtOAc (40×3 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by column chromatography to give N-(4,4-dimethyl-chroman-7-yl)-acetamide (1.35 g, 54%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08324242B2
Source datasetuspto-grants-2012_12
ORD IDord-ebc45755c527436a923605500848f51d
Source noteuspto-grants-2012_12