Table 2.

^*

*Reaction conditions: glycine derivative (0.30 mmol), alkyne (0.90 mmol), TBHP (54 μL, 5–6 M in decane), CuBr (0.03 mmol), CH₂Cl₂ (0.5 mL).

^†Isolated yields are based on amine, and NMR yields using an internal standard are given in parentheses. NA, not available; NR, no reaction; ND, not determined.