Electrophile-Driven Regioselective Synthesis of Functionalized Quinolines
摘要:
Highly substituted 3-iodoquinolines bearing different alkyl and aryl moieties can be synthesized in moderate to excellent yields (up to 99%) by 6-endo-dig iodocyclization of 2-tosylaminophenylprop-1-yn-3-ols with molecular iodine (I-2) under mild conditions. The cyclization is highly regioselective and the resulting 3-iodoquinolines can be further functionalized by various coupling reactions.
Copper-catalyzed tandem annulation/arylation for the synthesis of diindolylmethanes from propargylic alcohols
作者:Hui Li、Xiaoxun Li、Hao-Yuan Wang、Gabrielle N. Winston-McPherson、Hao-miao Julie Geng、Ilia A. Guzei、Weiping Tang
DOI:10.1039/c4cc05901h
日期:——
Various highly substituted 2,3′-diindolylmethane heterocycles were prepared from propargylic alcohols and indole nucleophiles via a transition metal-catalyzed tandem indole annulation/arylation reaction for the first time. Among the metal catalysts we examined, the most economical copper(I) catalyst provided the highest efficiency. The indole nucleophiles could also be replaced by other electron-rich arenes or alcohols.