Boron trifluoride etherate → HCID 68278578, compound

Participants

Reaction Conditions

Reaction Steps

Boron trifluoride etherate (4 g) was added dropwise with stirring to a mixture of sodium borohydride (720 mg, 19.03 mmol, 2.02 equiv) in tetrahydrofuran (35 mL) maintained under nitrogen at 0° C. The resulting solution was warmed to room temperature and stirred for 2 h. The above mixture was cooled to 0° C. then 3-[2-[4-(methoxycarbonyl)phenyl]-5-methyl-1,3-oxazol-4-yl]propanoic acid (2.72 g, 9.40 mmol, 1.00 equiv) was added in several batches. The reaction mixture was stirring at room temperature overnight and then quenched with 5 mL of methanol and 60 mL of water. The resulting solution was extracted with 50 mL of ethyl acetate. The organic layer was dried over anhydrous calcium chloride and concentrated under vacuum to give 2.2 g (85%) of methyl 4-[4-(3-hydroxypropyl)-5-methyl-1,3-oxazol-2-yl]benzoate as a white solid. LC-MS: (ES, m/z): 276 [M+H]+, 146, 115.

Provenance & Evidence