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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896750Generated: October 31, 2026

Acetic Acid → HCID 882263, compound

https://huagongshe.com/reaction/1896750

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant4-PyridinecarboxaldehydeHCID 13389—
Reactant2-(4-methylphenyl)-1,3-benzoxazol-5-amineHCID 721879—
ReactantSodium triacetoxyborohydrideHCID 5049666—
Solvent1,2-DichloroethaneHCID 11—
SolventDichloromethaneHCID 6344—
ProductHCID 882263HCID 88226347%

Reaction Steps

To 2-p-tolylbenzo[d]oxazol-5-amine (500 mg, 2.32 mmol) in 1,2-dichloroethane (20 mL) at room temperature was added acetic acid (142 μL, 2.32 mmol) and isonicotinaldehyde (222.5 μL, 2.29 mmol) and the mixture was stirred for 1 h. Sodium triacetoxyborohydride (707 mg, 3.35 mmol) was then added and the mixture was stirred at room temperature for 24 h. The mixture was then diluted with dichloromethane and the organic layer was washed with saturated aqueous NaHCO3. The combined organic layers were dried over anhydrous MgSO4 and evaporated. The resulting solid was purified by column chromatography eluting with ethyl acetate:hexanes 20:80 to afford 328 mg (47%) of the title compound (LCMS RT=6.27 min, MH+ 316.1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518980B2
Source datasetuspto-grants-2013_08
ORD IDord-f871c23f58694d7fa7ad2f5f06607800
Source noteuspto-grants-2013_08