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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1698692Generated: October 31, 2026

Trimethylsilyl cyanide → (5-Fluoro-8-methoxychroman-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]acetonitrile

https://huagongshe.com/reaction/1698692

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylsilyl cyanideHCID 82115—
ReactantYtterbium triflateHCID 2733225—
Reactant4-(5-Methyl-1,2,4-oxadiazol-3-yl)anilineHCID 18188176—
Reactant5-Fluoro-8-methoxychroman-6-carboaldehydeHCID 59511862—
SolventTetrahydrofuranHCID 8028—
Product(5-Fluoro-8-methoxychroman-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]acetonitrileHCID 67097514—

Reaction Steps

After adding 940 mg of 4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamine, 1.125 g of 5-fluoro-8-methoxychromane-6-carbaldehyde, 1 g of MS3A and 1.43 ml of trimethylsilyl cyanide to a solution of 330 mg of Yb(OTf)3 in 20 ml of THF under a nitrogen atmosphere, the mixture was stirred overnight at room temperature. The reaction mixture was filtered through celite, and the celite was washed with ethyl acetate. The organic layer was concentrated under reduced pressure to give (5-fluoro-8-methoxychroman-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]acetonitrile (crude product).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163787B2
Source datasetuspto-grants-2012_04
ORD IDord-a3f004c020674bb3884a9fabc1835b27
Source noteuspto-grants-2012_04