Desulfitative palladium-catalyzed direct C-3 arylation of indolizines with arylsulfonyl chlorides
作者:Wei Zhang、Fang Liu、Baoli Zhao
DOI:10.1002/aoc.3326
日期:2015.8
Pd‐catalyzed desulfitative approach to C‐3 arylation of indolizine derivatives has been developed, and the protocol uses readily available arylsulfonylchlorides as the arylation reagent under nitrogen. This transformation was performed in a mixed solvent of 1‐methyl‐2‐pyrrolidone and dimethoxyethane using simple triphenylphosphine as a ligand, which provides a new method for the C‐3 arylation of indolizines
Samarium(III)-Catalyzed C(sp<sup>3</sup>)–H Bond Activation: Synthesis of Indolizines<i>via</i>C–C and C–N Coupling between 2-Alkylazaarenes and Propargylic Alcohols
A new rareearth metal and samarium-catalyzed C(sp3)–H bond activation is reported in which 2-alkylazaarenes and propargylic alcohols were converted to indolizines. This process operates under mild conditions and solvent-free conditions. A broad scope of coupling partners has been established, and a likely mechanism has also been suggested.