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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 704331Generated: October 29, 2026

Iodine → HCID 312935, compound

https://huagongshe.com/reaction/704331

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodineHCID 807—
ReactantBenzonitrileHCID 7505—
ReactantAmmonium ChlorideHCID 25517—
ReactantEthyl 2-bromopropionateHCID 79040—
CatalystZincHCID 23994—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 312935HCID 312935—

Reaction Steps

Under vigorous agitation, 73.2 g of powdered electrolytic zinc were refluxed in 1.2 liter of anhydrous tetrahydrofuran and 10 ml of ethyl 2-bromopropionate were added together with a crystal of sublimed iodine. The reaction started and then, away from reflux, 40.8 ml of benzonitrile were added and the mixture was refluxed which was maintained by the slow addition of 58 ml of ethyl 2-bromopropionate. After cooling, the mixture was poured into 1.5 liters of water containing 200 g of ammonium chloride and extraction was done with ether. The extracts were washed with water, dried, and concentrated under reduced pressure. The residue was taken up with ether and the reduced pressure. The residue was taken up with ether and the insoluble matter was filtered off. The filtrate was concentrated under reduced pressure to obtain 76 g of an unstable product which was used rapidly for the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04987140
Source datasetuspto-grants-1991_01
ORD IDord-e82189e7542145cf88cf4ca90e9147f8
Source noteuspto-grants-1991_01