A Copper-Catalyzed Cascade Approach for the Synthesis of Dibenzo[<i>b,f</i>
]1,8-naphthyridine Derivatives
作者:Bharath Kumar Villuri、Ashok Konala、Veerababurao Kavala、Trimurtulu Kotipalli、Chun-Wei Kuo、Ching-Fa Yao
DOI:10.1002/adsc.201700546
日期:2017.9.18
The synthesis of some dibenzo[b,f]‐[1,8]naphthyridine derivatives in a cascade manner is reported. The reaction includes a Knovenagel condensation, the insertion of a nitrile and an alkyne into an N–H bond and an oxidation/oxidative C–C bond cleavage sequence in the presence of copper iodide. The key 1,8‐naphthyridine core was constructed in a cascade manner during the course of the reaction itself
据报道以级联方式合成了一些二苯并[ b,f ]-[1,8]萘啶衍生物。该反应包括Knovenagel缩合反应,在碘化铜存在下,将腈和炔插入到NH键中,以及氧化/氧化CC键的裂解顺序。关键的1,8-萘啶核心是在反应过程中以级联方式构建的,可以轻松制备各种二苯并[ b,f ]-[1,8]萘啶衍生物。