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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490707Generated: October 28, 2026

Methanol → HCID 59212217, compound

https://huagongshe.com/reaction/490707

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTriethylamineHCID 8471—
ReactantOxalyl chlorideHCID 65578—
ReactantHCID 21942791HCID 21942791—
CatalystDimethylformamideHCID 6228—
ProductHCID 59212217HCID 5921221735%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 2-(4-Trifluoromethyl-benzoylamino)-propionic acid (33.4 g, 128 mmol) is added oxalyl chloride (111 mL, 1.27 Mol) and 1 drop of DMF and the solution stirred overnight. The volatiles are removed in vacuo and toluene (20 mL) is added. The toluene is then removed in vacuo. To the resultant crude oil is dissolve in 50 mL methylene chloride, cooled to 0° C. and triethylamine (27 mL, 192 mmol) is added followed by methanol (50 mL). After 3 hrs the volatiles are removed in vacuo and the crude oil is purified by flash column chromatography (20%-50% ethyl acetate/hexanes) to provide 12.6 g (35%) of 4-Methyl-2-(4-trifluoromethyl-phenyl)-oxazole-5-carboxylic acid methyl ester. This ester (2.0 g, 7.0 mmol) is reduced to the alcohol by dissolution in THF (50 mL) and adding 4 eq. LiBH4 (0.610 g, 28.0 mmol) to provide 1.8 g (100%) [4-Methyl-2-(4-trifluoromethyl-phenyl)-oxazol-5-yl]-methanol. MS M++1 258.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528160B2
Source datasetuspto-grants-2009_05
ORD IDord-00326c50dfc143678f33cd7035f7fe75
Source noteuspto-grants-2009_05