Dual Heterogeneous Catalysis for a Regioselective Three‐ Component Synthesis of Bi‐ and Tri(hetero)arylpyridines
作者:Christophe Allais、Frédéric Liéby‐Muller、Thierry Constantieux、Jean Rodriguez
DOI:10.1002/adsc.201200412
日期:2012.9.17
user‐friendly oxidative dual heterogeneous catalytic system capable of promoting polysubstituted pyridines as unique products from simple activated Michael acceptors, 1,3‐dicarbonyls and ammonium acetate. This metal‐free environmentally‐respectful and totally regioselective domino reaction proved to be a great strategy to access bi‐ and triaryl‐type pyridines as well as challenging bi‐ and triheteroaryl‐type
我们设计了一种新的,用户友好的氧化双重异质催化系统,能够促进多取代吡啶作为简单活化的迈克尔受体,1,3-二羰基和乙酸铵的独特产物。事实证明,这种无金属环保且完全区域选择性的多米诺骨牌反应是在一次操作中获得双芳基和三芳基型吡啶以及具有挑战性的双杂芳基和三杂芳基型吡啶的绝佳策略。