Table 3. Direct C–H Vinylation: Vinyl Sulfone Scope^a.

^aAll reactions performed using the conditions described in Table 2. Yields are of isolated products. E:Z ratio determined by ¹H NMR analysis.

^bIsomerization from 82:18 E:Z (crude ratio) to >98:2 E:Z occurred during the mildly acidic purification conditions. NPhth = phthalimidoyl.