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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 401308Generated: October 25, 2026

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

https://huagongshe.com/reaction/401308

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 numberUS08741925B2
Source datasetuspto-grants-2014_06
ORD IDord-33cc48793e6f47559b7e36f90ee9b196
Source noteuspto-grants-2014_06