α‐Isocupreine, an Enantiocomplementary Catalyst of β‐Isocupreidine

Complementary chemistry! α-Isocupreine (α-ICPN) was synthesized for the first time in one step from quinine by treatment with CF3SO3H (see scheme). This compound serves as an enantiocomplementary catalyst to β-isocupreidine (β-ICD) in the Morita–Baylis–Hillman reaction.