Friedländer synthesis of polysubstituted quinolines and naphthyridines promoted by propylphosphonic anhydride (T3P®) under mild conditions
作者:Mouhamad Jida、Benoit Deprez
DOI:10.1039/c2nj21043f
日期:——
A new convenient, efficient and environmentally eco-friendly protocol for Friedländer synthesis of polysubstituted quinolines and naphthyridines is described. A wide variety of new products were readily prepared in the presence of propylphosphonic anhydride (T3P®) in short reaction times and excellent yields under mild conditions.
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O‐Promoted Synthesis of Functionalized Quinolines from Ketoximes and Alkynes
作者:Weiping Zheng、Weiguang Yang、Dongping Luo、Lin Min、Xinyan Wang、Yuefei Hu
DOI:10.1002/adsc.201801724
日期:2019.4.23
A new general synthesis of quinolines was developed from ketoximes and alkynes in the presence of Tf2O. It offered the first direct synthesis of quinolines by using the nitrilium salts generated in situ from a Tf2O‐promoted Beckmann rearrangement of ketoximes under very easy conditions.
On the Reaction of<i>N</i>-Arylnitrilium Salts with Acetylenes: Synthesis of Substituted Quinolines
作者:Mahmoud Al-Talib、Johannes C. Jochims、Quanrui Wang、Atef Hamed、Abd El-Hamid Ismail
DOI:10.1055/s-1992-26250
日期:——
Quinolinium salts 3 are obtained from the reaction of N-arylnitrilium salts 1 with acetylenes 2. With aqueous base the salts 3 are transformed into the corresponding quinolines 4.