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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 3933Generated: October 24, 2026

Hydrochloric Acid → 2-(p-Cyanophenyl)-5-octylpyridine

https://huagongshe.com/en/reaction/3933

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-methyl-2-pyrrolidoneHCID 13387—
Reactant2-(p-Bromophenyl)-5-octylpyridineHCID 13586276—
ReactantHCID 178418546HCID 178418546—
CatalystFerrous ChlorideHCID 24458—
SolventWaterHCID 962—
Product2-(p-Cyanophenyl)-5-octylpyridineHCID 13586277—

Reaction Steps

94 ml of N-methylpyrrolidone was added to the 47.6 g (0.138 mol) of the 2-(p-bromophenyl)-5-octylpyridine. Then 19.3 g (0.216 mol) of copper (I) cyanide was added and the solution was refluxed for 2 hours. A mixture of 69 g of iron (II) chloride, 13.8 ml of concentrated hydrochloric acid and 69 ml of water was added to the mixture solution and the organic layer was extracted with chloroform. The extract was washed with a 10% aqueous solution of potassium hydroxide and then three times with water. Chloroform was removed by distillation. The residue was distilled under reduced pressure (210° to 220° C./2 mmHg) and recrystallized from methanol to obtain 33 g (0.1113 mol) of 2-(p-cyanophenyl)-5-octylpyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04723018
Source datasetuspto-grants-1988_02
ORD IDord-3e38851339f345daa2b27e8a83160009
Source noteuspto-grants-1988_02