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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1161394Generated: October 29, 2026

Ethyl Acetate → HCID 59516853, compound

https://huagongshe.com/reaction/1161394

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantTrimethylsilyl cyanideHCID 82115—
ReactantBenzaldehyde, 4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-3-methoxy-HCID 10539726—
Reactant4-(5-Methyl-1,2,4-oxadiazol-3-yl)anilineHCID 18188176—
CatalystYtterbium triflateHCID 2733225—
SolventDichloromethaneHCID 6344—
ProductHCID 59516853HCID 59516853—

Reaction Steps

After adding 3.12 g of 4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamine, 3.3 g of MS3A, 1.11 g of Yb(OTf)3 and 4.75 ml of trimethylsilyl cyanide to a solution of 5.0 g of 4-t-butyldimethylsilanyloxy-3-methoxybenzaldehyde [CAS No. 69404-94-0] in 98 ml of dichloromethane under a nitrogen atmosphere, the mixture was stirred at room temperature for 23 hours. Next, 500 ml of ethyl acetate was added to the reaction mixture, the reaction mixture was filtered through celite, and the celite was washed with ethyl acetate. The organic layers were combined and washed with water and saturated brine, and then dried over anhydrous sodium sulfate. The desiccating agent was filtered off, and the filtrate was concentrated under reduced pressure to give the title compound (8.45 g) as a crude product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07816522B2
Source datasetuspto-grants-2010_10
ORD IDord-2f1d6e3c84004ddf80891020adf12236
Source noteuspto-grants-2010_10