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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1606395Generated: November 4, 2026

Pyridine → HCID 21542797, compound

https://huagongshe.com/reaction/1606395

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2,5-Dichlorobenzoyl chlorideHCID 17945—
Reactant3,4-DibromohexahydrophthalimideHCID 21542796—
SolventBenzeneHCID 241—
ProductHCID 21542797HCID 21542797—

Reaction Steps

3,4-Dibromohexahydrophthalimide (0.10 mole), benzene (300 ml) and pyridine (0.11 mole) are charged into a glass reaction vessel equipped with a mechanical stirrer, thermometer and reflux condenser. 2,5-Dichlorobenzoyl chloride (0.10 mole) is then added dropwise to the flask with stirring at room temperature. After the addition is completed the reaction mixture is heated at reflux with continued stirring for a period of about 1 hour. After this time the reaction mixture is filtered and the filtrate is washed with water. The washed filtrate is then dried over anhydrous magnesium sulfate, filtered and stripped of solvent under reduced pressure to yield the desired product N-(2,5-dichlorobenzoyl)-3,4-dibromohexahydrophthalimide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03953397
Source datasetuspto-grants-1976_04
ORD IDord-ad88737f860048518c5ffa2712bdc729
Source noteuspto-grants-1976_04