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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 613992Generated: October 29, 2026

Diethyl Ether → N-Methyl-N-(4-methyl-1,3-oxazol-2-yl)acetamide

https://huagongshe.com/reaction/613992

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantN-MethylacetamideHCID 6582—
ReactantPotassium hydrideHCID 82127—
Reactant2-(Hexane-1-sulfinyl)-4-methyl-1,3-oxazoleHCID 21329744—
SolventHexamethylphosphoramideHCID 12679—
ProductN-Methyl-N-(4-methyl-1,3-oxazol-2-yl)acetamideHCID 12556871—

Reaction Conditions

Temperature100 °C

Reaction Steps

N-Methyl-acetamide (1.02 g, 0.0140 m) in HMPA (10 ml) was stirred at 50° C. under nitrogen during the portionwise addition of 50% potassium hydride/oil dispersion (1.12 g, 0.0140 m). After the addition, the mixture was warmed to 100° C. and 2-n-hexylsulphinyl-4-methyloxazole (3.0 g, 0.0139 m) in HMPA (10 ml) was added and the mixture stirred at 100° C. for 5 hours. The mixture was then hydrolysed with water, solvent removed in vacuo and the product isolated by column chromatography on silica using ether. Recrystallisation from diethyl ether/hexane at -20° C. gave the title product as colourless needles, m.p. 27°-29° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04143047
Source datasetuspto-grants-1979_03
ORD IDord-b51de74d26034ae4b454d880a32b14f3
Source noteuspto-grants-1979_03