ChemInform Abstract: Indium‐Catalyzed Reductive Alkylation of Pyrroles with Alkynes and Hydrosilanes: Selective Synthesis of β‐Alkylpyrroles.

Abstract

Pyrrole derivatives R 0120Indium-Catalyzed Reductive Alkylation of Pyrroles with Alkynes and Hydrosilanes: Selective Synthesis of β-Alkylpyrroles. -The reaction tolerates functional groups in the terminal alkyne. In some cases, premixing of pyrrole derivative, alkyne and In catalyst prior to the addition of silane is needed. The reaction cannot be applied directly to unprotected pyrrole; the target compound is prepared by deprotection of the N-Bn derivative. -(TSUCHIMOTO*, T.; WAGATSUMA, T.; AOKI, K.; SHIMOTORI, J.; Org. Lett. 11 (2009) 10, 2129-2132; Dep. Appl. Chem., Meiji Univ., Kawasaki 214, Japan; Eng.) -R. Steudel 41-102