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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1493438Generated: October 25, 2026

Sodium Iodide → 2,3-Dicyanonaphthalene

https://huagongshe.com/reaction/1493438

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 numberUS05021563
Source datasetuspto-grants-1991_06
ORD IDord-e0e2acd1e5994ea8823a6809fbceb207
Source noteuspto-grants-1991_06