Metal-Free Synthesis of Highly Substituted Pyridines by Formal [2+2+2] Cycloaddition under Mild Conditions

被引:83
|
作者
Xie, Lan-Gui [1 ]
Shaaban, Saad [1 ]
Chen, Xiangyu [1 ]
Maulide, Nuno [1 ]
机构
[1] Univ Vienna, Inst Organ Chem, Wahringer Str 38, A-1090 Vienna, Austria
关键词
alkynes; cycloaddition; heteroalkynes; nitriles; pyridines; ONE-STEP SYNTHESIS; ONE-POT SYNTHESIS; DE-NOVO SYNTHESIS; FUNCTIONALIZED PYRIDINES; REGIOSELECTIVE SYNTHESIS; CATALYZED CYCLOADDITION; INTERNAL THIOALKYNES; VINYL AZIDES; CYCLOTRIMERIZATION; NITRILES;
D O I
10.1002/anie.201606604
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The synthesis of pyridines through direct intermolecular cycloaddition of alkynes and nitriles is a contemporary challenge in organic synthesis. A BrOnsted acid mediated formal [2+2+2] cycloaddition of heteroalkynes and nitriles was developed that proceeds under mild conditions. This constitutes a modular approach to highly substituted pyridine cores.
引用
收藏
页码:12864 / 12867
页数:4
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