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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 29440Generated: October 25, 2026

2-Amino-4-methylphenol → 5-Methyl-benzooxazole-2-carboxylic acid ethyl ester

https://huagongshe.com/reaction/29440

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-4-methylphenolHCID 7264—
ReactantEthyl 2,2,2-triethoxyacetateHCID 5090273—
Product5-Methyl-benzooxazole-2-carboxylic acid ethyl esterHCID 6871306091%

Reaction Conditions

Temperature110 °C

Reaction Steps

To 2-amino-4-methylphenol (1 g, 8.1 mmol) was added ethyl triethoxyacetate (5.4 g, 3 eq). The mixture was stirred at 110° C. overnight. The reaction mixture was cooled and triturated with hexane. Filtration gave 850 mg (91%) of 5-methyl-benzooxazole-2-carboxylic acid ethyl ester as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07420001B2
Source datasetuspto-grants-2008_09
ORD IDord-8b7b0d44b47645e18d89b4e26aef221a
Source noteuspto-grants-2008_09