Tetrabutylammonium Fluoride → HCID 67214791, compound

Participants

Reaction Steps

To a cooled (0° C.) solution of tert-butyl 3-(3-((S)-2-(tert-butyldiphenylsilyloxy)propanoyl)-5-(3-fluorophenyl)-2-phenyl-2,3-dihydro-1,3,4-thiadiazol-2-yl)propylcarbamate (180 mg, 0.25 mmol) in THF (2.5 mL) was added TBAF (0.40 mL of 1M solution in THF). After stirring at room temperature for 2 hours, the volume was reduced in vacuo and the mixture was diluted with half-saturated NaHCO3 (30 mL). The mixture was extracted with ethyl acetate (3×20 mL) and the combined organics were washed with brine (30 mL), dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was chromatographed (30% ethyl acetate in hexanes) to provide the product (95 mg, 79%) as a viscous, yellow syrup.

Provenance & Evidence