Highly Efficient Hydrogen-Bonding Catalysis of the Diels–Alder Reaction

Jacs

Highly Efficient Hydrogen-Bonding Catalysis of the Diels–Alder Reaction of 3-Vinylindoles and Methyleneindolinones Provides Carbazolespirooxindole Skeletons
Bin Tan, Gloria Hernandez-Torres, and Carlos F. Barbas, III