Triethylamine → HCID 22262120, compound

Participants

Reaction Steps

To a solution of (2RS,3RS)-3-(4-fluorophenyl)-3-hydroxy-2-[(2,2,3,3-tetrafluoro-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]propanoic acid (3.3 g, 8.16 mmol) in tetrahydrofuran (120 ml) were added diphenylphosphoryl azide (1.94 ml, 8.98. mmol) and triethylamine (1.71 ml, 12.2 mmol), and the mixture was heated under reflux for 1 hr. The reaction solution was allowed to cool and the mixture was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate). Recrystallization from ethyl acetate-hexane gave the objective substance (2.74 g, 84%).

Provenance & Evidence