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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 458784Generated: October 27, 2026

Benzeneacetic acid, alpha-bromo-, methyl ester → HCID 69354681, compound

https://huagongshe.com/reaction/458784

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneacetic acid, alpha-bromo-, methyl esterHCID 137806—
Reactant1-(3,4-Dimethoxy-benzyl)-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-benzo[c]azepineHCID 12267996—
ReactantEthyl acetate hexaneHCID 21226206—
SolventTolueneHCID 1140—
SolventDichloromethaneHCID 6344—
ProductHCID 69354681HCID 69354681—

Reaction Steps

A mixture of 1-(3,4-dimethoxy-benzyl)-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-benzo[c]azepine (1.10 g, 3.08 mmol), TEA (1.3 ml, 9.33 mmol), and methyl α-bromophenylacetate (487 μl, 3.09 mmol) in anhydrous toluene (13 ml) was stirred at reflux for 17 h under nitrogen. After cooling, the reaction mixture was dissolved in CH2Cl2 (40 ml), washed with H2O (15 ml), and the aqueous phase was extracted twice with CH2Cl2. The combined organic phases were dried over anhydrous MgSO4, filtered and concentrated to give a crude oil. Flash chromatography (AcOEt/hexane: 1/1) gave the title compound as a mixture of stereoisomers (1.34 g, 2.65 mmol, 86%, yellow oil).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07192950B2
Source datasetuspto-grants-2007_03
ORD IDord-41483652722c477c97f95f4379d5c93a
Source noteuspto-grants-2007_03