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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 747044Generated: October 30, 2026

Azobisisobutyronitrile → 7-Bromomethyl-6-chlorochroman-4-one

https://huagongshe.com/reaction/747044

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAzobisisobutyronitrileHCID 6547—
ReactantN-bromobutanimideHCID 67184—
Reactant6-Chloro-7-MethylchromanoneHCID 5022474—
SolventCarbon TetrachlorideHCID 5943—
Product7-Bromomethyl-6-chlorochroman-4-oneHCID 69077375—

Reaction Steps

A mixture of 6-chloro-7-methyl-chroman-4-one (20 g, 101.71 mmol), NBS (19.9 g, 111.88 mmol), and AIBN (4.17 g, 25.43 mmol) in anhydrous CCl4 (300 mL) was heated at reflux in 24 h. The mixture was cooled, filtered the solid. The filtrate was concentrated and used in the next step without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07393852B2
Source datasetuspto-grants-2008_07
ORD IDord-98a6690227fa40ce860c57bb25e4eee3
Source noteuspto-grants-2008_07