Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 648954Generated: October 26, 2026

Acetic Acid → 1,3-Dihydro-7,8-dimethoxy-2H-3-benzazepin-2-one

https://huagongshe.com/reaction/648954

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactantn-(2,2-Dimethoxyethyl)-2-(3,4-dimethoxyphenyl)acetamideHCID 13092500—
SolventHydrochloric AcidHCID 313—
Product1,3-Dihydro-7,8-dimethoxy-2H-3-benzazepin-2-oneHCID 1482373—

Reaction Steps

A solution of N-(2,2-dimethoxyethyl)-3,4-dimethoxyphenylacetamide (600.6 g) in concentrated hydrochloric acid (3 liters) is mixed with acetic acid (3 liters). After standing for 17 hours at ambient temperature the mixture is poured onto ice. The precipitated crystals are suction filtered, washed with water until neutral and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04737495
Source datasetuspto-grants-1988_04
ORD IDord-450bd3e733bb46c090ef7e5a694b3ab3
Source noteuspto-grants-1988_04