annulation with glutaconate to provide straightforward access to phenanthridine‐8‐carboxylates and hydrophenanthridine‐8‐carboxylates under mild aerobic conditions. In this domino transformation, two rings and three bonds were successively created. A mechanism involving tandem [3+3]‐annulation/intramolecular cyclization/ demethoxycarbonylation/aerobic oxidative aromatization sequence was proposed.
从容易获得的反应物中制备了各种邻烯基芳基
异氰酸酯,发现它们与
戊二酸进行了双环化反应,从而可以在温和的好氧条件下直接获得
菲啶-8-
羧酸盐和氢化
菲啶-8-
羧酸盐。在该多米诺骨牌变换中,两个环和三个键被连续创建。提出了一种机制,涉及串联[3 + 3]-环化/分子内环化/脱甲氧基羰基化/好氧氧化芳构化顺序。