Synthesis of Quinazolinones, Imidazo[1,2-<i>c</i>
]quinazolines and Imidazo[4,5-<i>c</i>
]quinolines through Tandem Reductive Amination of Aryl Halides and Oxidative Amination of C(sp<sup>3</sup>
)-H Bonds
作者:Nitesh Kumar Nandwana、Shiv Dhiman、Hitesh Kumar Saini、Indresh Kumar、Anil Kumar
DOI:10.1002/ejoc.201601329
日期:2017.1.18
2-c]quinazolines and imidazo[4,5-c]quinolines. The reaction involves a copper-catalyzed reductive amination through azidation followed by reduction and oxidative amination of C(sp3)–H bonds of N,N-dimethylacetamide in the presence of TBHP (tert-butylhydroperoxide) as oxidant. The method uses the easily available sodium azide as a nitrogen source and DMA (N,N-dimethylacetamide) as a one-carbon source for the
已经描述了用于合成喹唑啉酮、咪唑并[1,2-c]喹唑啉和咪唑并[4,5-c]喹啉的串联多组分方法。该反应涉及铜催化的叠氮化还原胺化,然后在 TBHP(叔丁基氢过氧化物)作为氧化剂的存在下还原和氧化胺化 N,N-二甲基乙酰胺的 C(sp3)-H 键。该方法使用容易获得的叠氮化钠作为氮源,使用 DMA(N,N-二甲基乙酰胺)作为单碳源合成这些 N-稠合杂环,收率良好。该反应也可用于克级合成。