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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2049336Generated: November 2, 2026

Dimethyl Sulfate → Hexahydro-3-(3-methoxyphenyl)-2H-azepin-2-one

https://huagongshe.com/reaction/2049336

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfateHCID 6497—
ReactantPotassium CarbonateHCID 11430—
Reactant3-(3-hydroxyphenyl)hexahydro-2H-azepin-2-oneHCID 12665523—
SolventAcetoneHCID 180—
ProductHexahydro-3-(3-methoxyphenyl)-2H-azepin-2-oneHCID 12875111—

Reaction Steps

A suspension of hexahydro-3-(3-hydroxyphenyl)-2H-azepin-2-one (4.1 g), anhydrous potassium carbonate (5.6 g) and dimethyl sulphate (2.52 g) was heated under reflux with stirring in acetone (50 ml). After cooling the solution was filtered and evaporated to dryness under reduced pressure. The product was recrystallised from diisopropyl ether/ethyl acetate affording the title compound, identical to that obtained by the method of Example 1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04197241
Source datasetuspto-grants-1980_04
ORD IDord-14d09d2b2e5748939466a7a19a4db96f
Source noteuspto-grants-1980_04