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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 476831Generated: October 25, 2026

Sodium Iodide → 2,3-Dicyanonaphthalene

https://huagongshe.com/reaction/476831

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium IodideHCID 5238—
Reactant3,4,5,6-Tetrabromo-o-xyleneHCID 17771—
ReactantFumaronitrileHCID 637930—
ReactantSodium BisulfiteHCID 23665763—
SolventDimethylformamideHCID 6228—
Product2,3-DicyanonaphthaleneHCID 60127080%

Reaction Steps

To 0.1 mol of tetrabromoxylene were added 0.17 mol of fumaronitrile, 0.66 mol of sodium iodide and 400 ml of anhydrous dimethylformamide, and the mixture was stirred under heating at 70° to 80° C. for 7 hours. The reaction mixture was added to 800 g of ice-water, and to the resultant precipitate was added about 15 g of sodium hydrogen sulfite and the mixture was left to stand overnight. Subsequently, the mixture was filtered and dried, followed by recrystallization from chloroform/ethanol, to give white 2,3-dicyanonaphthalene. The yield was 80%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04886721
Source datasetuspto-grants-1989_12
ORD IDord-1eb695f3a2a048318e8379ef2fd4ce61
Source noteuspto-grants-1989_12