A Serendipitous Discovery: Nickel Catalyst for the Cycloaddition of Diynes with Unactivated Nitriles
作者:Puneet Kumar、Simon Prescher、Janis Louie
DOI:10.1002/anie.201104475
日期:2011.11.4
9‐dimethylxanthene (Xantphos) was used to access pyridines (see scheme). The reaction proceeds under ambient conditions to provide excellent yields of the products. Comparison of this catalyst with the other state‐of‐the‐art catalysts is also provided.
在关键时刻和配体4,5-双(二苯基膦)-9,9-二甲基呫吨(Xantphos)的催化组合用于获得吡啶(见方案)。反应在环境条件下进行以提供极好的产物产率。还提供了这种催化剂与其他最先进催化剂的比较。