Gold(I)-Catalyzed Heteroannulation of Salicylic Amides with Alkynes: Synthesis of 1,3-Benzoxazin-4-one Derivatives
作者:Masahiro Abe、Megumu Kawamoto、Mayu Inoue、Tetsutaro Kimachi、Kiyofumi Inamoto
DOI:10.1021/acs.orglett.2c02066
日期:2022.8.12
Gold(I)-catalyzed heteroannulation affords the efficient and straightforward construction of heterocyclic compounds. Herein, we developed a gold(I)-catalyzed heteroannulation of salicylic amides with alkynes producing a broad range of 1,3-benzoxazin-4-ones. The utility of this protocol was highlighted by synthesizing variously substituted benzoxazinones containing quaternary carbon centers, showing
金 (I) 催化的杂环化提供了高效且直接的杂环化合物构建。在此,我们开发了一种金 (I) 催化的水杨酸酰胺与炔烃的异环化反应,产生了广泛的 1,3-benzoxazin-4-ones。通过合成含有季碳中心的各种取代的苯并恶嗪酮,突出了该协议的实用性,显示出由此引入的反应过程的高官能团耐受性和优异的原子经济性。