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.