Exclusive Synthesis of β-Alkylpyrroles under Indium Catalysis: Carbonyl Compounds as Sources of Alkyl Groups

No longer difficult: Just mixing readily available carbonyl compounds, pyrroles, and nucleophiles with an indium catalyst was found to give β‐alkylpyrroles in a regiospecific manner. Removal of benzyl (Bn) and cumyl groups from the nitrogen atoms of the products enables access to nitrogen‐unsubstituted β‐alkylpyrroles (see scheme).