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A solution of N-benzyl-3-azido pyrrolidine (3 g, 0.0148 mol) and phenyl-acetylene (3 g, 0.0292 mol) in benzene (30 ml) was heated under reflux for 48 hrs. The reaction mixture was concentrated to oil from which the title compounds were isolated by column chromatography using silica gel and a mixture of CHCl3, hexane, MeOH (4:4:1) as eluant. N-benzyl-3-(5-phenyl-1,2,3-triazol-1-yl)pyrrolidine was obtained as oil. Yield: 1 g (22.17%). 1H NMR (CDCl3) δ: 2.32-2.51 (m, 2H), 2.88-3.13 (m, 2H), 3.80 (s, 2H), 5.00 (p, 1H), 7.20-7.53 (m, 10H), 7.67 (s, 1H). N-benzyl-3-(4-phenyl-1,2,3-triazol-1-yl)pyrrolidine, oil, yield 3.0 g. 1H NMR (CDCl3) δ: 2.05-2.22 (m, 1H), 2.30-2.69 (m, 2H), 2.75-3.25 (m, 3H), 5.20- 5.33 (m, 1H), 7.23-7.51 (m, 8H), 7.81-7.92 (m, 2H), 8.06 (s, 1H).

1. temperatureunder reflux for 48 hrs
2. concentrationThe reaction mixture was concentrated to oil from which the title compounds
3. customwere isolated by column chromatography