1-Azido-4-fluorobenzene → (S)-tert-Butyl 2-(4-(1-(4-fluorophenyl)-1H-1,2,3-triazol-4-yl)phenyl)morpholine-4-carboxylate

Participants

Reaction Steps

1-Azido-4-fluorobenzene (24 mg, 0.174 mmol) was dissolved in N,N-diisopropylethylamine (0.75 ml), then (S)-tert-butyl 2-(4-ethynylphenyl)morpholine-4-carboxylate (50 mg, 0.175 mmol) was added followed by copper(I) iodide (33 mg, 0.174 mmol). The mixture was stirred at room temperature for 3 h. The green mixture was concentrated on the rotavap, silica gel (0.5 g) was added and after short grinding the mixture was put on a silica gel column for purification. Flash chromatography (5 g silica gel, 30% ethyl acetate in heptane) yielded a white solid (21 mg, 28%). MS (ISP): 369.1 ([M-tBu+H]+), 425.2 ([M+H]+).

Provenance & Evidence