A conjugate addition of nucleophilic substrates to ... efficiently with a number of ketones through a camphorsulfonic acid-catalyzed procedure. Various sensitive substituents at the indoles ...

Figure 2. Base-catalyzed production of the enolate ion in the aldol self-condensation reaction (R = H, alkyl, phenyl) The resonance stabilized enolate is then subjected to nucleophilic addition to the ...