Table 1. Vinylation of N-Heterocycles Using 1^a.

^aReaction conditions: 0.300 mmol of N-heterocycle, 1.7 equiv of 1, 2.0 equiv of DBU in CH₂Cl₂ (3.0 mL, c = 0.10 M), 25 °C, 3 h.

^bDMSO was used as solvent.

^c1.2 equiv of 1 were added to a solution of N-heterocycle and DBU.

^d30 min at 0 °C, then 2.5 h at 25 °C. * denotes the site of vinylation on the constitutional isomer not shown.