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Qualitative Representation of the Free Energy Profile for the Conversion of Allenyl Azide 13a into the C–C and C–N Cyclized Products 72 and 73, Respectively, in the Presence of Cu(I)•HCNa
aEnergies of ground-state structures and transition states were calculated using the B3LYP/6–311+G(d,p)//B3LYP/6–31G(d,p) methodology.
