Trifluoroacetic acid → 4,5,6,7-Tetrahydro-2-(phenoxymethyl)-oxazolo[4,5-c]pyridine

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Reaction Steps

Trifluoroacetic acid (1.0 mL, 13.0 mmol) was added to a solution of 6,7-dihydro-2-(phenoxymethyl)-oxazolo[4,5-c]pyridine-5(4H)-carboxylic acid 1,1-dimethylethyl ester (0.11 g, 0.35 mmol) in DCM (1 mL). The mixture was stirred at room temperature for 30 minutes and basified with a saturated solution of Na2CO3. The organic layer was separated, dried (Na2SO4), filtered and the solvents evaporated in vacuo to yield 4,5,6,7-tetrahydro-2-(phenoxymethyl)-oxazolo[4,5-c]pyridine (80 mg, 100% yield, 30% pure) that was used in the next step without further purification. C13H14N2O2 LCMS: Rt 0.65, m/z 231 [M+H]+ (using method, LC-MS Method 7).

Provenance & Evidence