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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 487745Generated: October 26, 2026

4-acetyl-5-methyl-2-phenyloxazole N-oxide hydrochloride → 1-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethan-1-one

https://huagongshe.com/reaction/487745

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-acetyl-5-methyl-2-phenyloxazole N-oxide hydrochlorideHCID 19093060—
CatalystZincHCID 23994—
SolventAcetic AcidHCID 176—
Product1-(5-Methyl-2-phenyl-1,3-oxazol-4-yl)ethan-1-oneHCID 1233784912.6%

Reaction Steps

Next, 100 g of 4-acetyl-5-methyl-2-phenyloxazole N-oxide hydrochloride was dissolved in 500 ml of glacial acetic acid and 100 g of zinc powder was added to the solution while cool stirring within a ice water bath. The separation was filtered after addition of 2 l of water and recrystalization was carried out by addition of methanol to produce 10 g of 4-acetyl-5-methyl-2-phenyloxazole (melting point; 74° to 76° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05296607
Source datasetuspto-grants-1994_03
ORD IDord-22b2523d82a0402698f11211b08c1e18
Source noteuspto-grants-1994_03