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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1189377Generated: October 31, 2026

Nitrogen → 2-Methyl-5-m-tolyl-oxazole-4-carbonyl chloride

https://huagongshe.com/reaction/1189377

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitrogenHCID 947—
ReactantDimethylformamideHCID 6228—
ReactantOxalyl chlorideHCID 65578—
Reactant2-Methyl-5-(m-tolyl)oxazole-4-carboxylic acidHCID 66929205—
SolventTolueneHCID 1140—
Product2-Methyl-5-m-tolyl-oxazole-4-carbonyl chlorideHCID 86664905—

Reaction Steps

In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a suspension of 2-methyl-5-m-tolyl-oxazole-4-carboxylic acid (53 mg, 0.25 mmol) in toluene (1.0 mL) was treated with a drop of DMF followed by oxalyl chloride (0.08 mL, 0.86 mmol) and the resulting yellow solution was stirred at rt for 30 min. The solvent was then removed under reduced pressure (coevaporation with toluene) to give 2-methyl-5-m-tolyl-oxazole-4-carbonyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08674111B2
Source datasetuspto-grants-2014_03
ORD IDord-0c90cb6dbb304fe6a2eaee3197e9239f
Source noteuspto-grants-2014_03