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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1696334Generated: October 31, 2026

Azobisisobutyronitrile → 4-bromo-6-methoxy-2,2-dimethyl-3,4-dihydronaphthalen-1(2H)-one

https://huagongshe.com/reaction/1696334

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAzobisisobutyronitrileHCID 6547—
ReactantN-bromobutanimideHCID 67184—
Reactant6-methoxy-2,2-dimethyl-3,4-dihydronaphthalen-1(2H)-oneHCID 15578685—
SolventCarbon TetrachlorideHCID 5943—
Product4-bromo-6-methoxy-2,2-dimethyl-3,4-dihydronaphthalen-1(2H)-oneHCID 6684471986%

Reaction Steps

To a mixture of 6-methoxy-2,2-dimethyl-3,4-dihydronaphthalen-1(2H)-one (3.30 g, 16.2 mmol) and 1-bromopyrrolidine-2,5-dione (2.88 g, 16.2 mmol) in 50 mL of CCl4, was added AIBN (0.265 g, 1.62 mmol). The mixture was heated to reflux for three hours. The reaction was cooled to RT and the reaction was quenched with water (25 mL) and extracted with EtOAc (3×100 mL). The combined organic layers were washed with brine, dried over MgSO4 and filtered. The solvent was evaporated and the residue was purified by column chromatography (0-50% EtOAc/Hexane to provide the title compound as a white solid (3.92 g, 86% yield). MS m/z: 284.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163766B2
Source datasetuspto-grants-2012_04
ORD IDord-a5caadc7da8d4cf18bef8d681d6d31d4
Source noteuspto-grants-2012_04