Silver-Catalyzed Incorporation of Carbon Dioxide into <i>o-</i>Alkynylaniline Derivatives
作者:Tomonobu Ishida、Satoshi Kikuchi、Tatsuyuki Tsubo、Tohru Yamada
DOI:10.1021/ol303534w
日期:2013.2.15
because of their various pharmaceutical activities, though their synthetic methods had been limited. In some cases, toxic reagents, such as phosgene or carbon monoxide, are required. It was found that a silver catalyst successfully promoted the incorporation of CO2 into o-alkynylanilines to afford the corresponding benzoxazine-2-ones bearing Z exo-olefin via 6-exo-dig cyclization at the activated C–C triple
尽管它们的合成方法受到限制,但由于它们的各种药物活性,苯并恶嗪-2-酮衍生物是重要的杂环结构。在某些情况下,需要使用有毒的试剂,例如光气或一氧化碳。发现银催化剂成功地促进了CO 2掺入邻炔基苯胺中,从而在活化的C-C三键上通过6 -exo-dig环化反应提供了相应的带有Z exo-烯烃的苯并恶嗪-2-酮。