Copper-mediated oxidative tandem reactions with molecular oxygen: synthesis of 2-arylbenzoxazinone derivatives from indoles
作者:Mitsuaki Yamashita、Akira Iida
DOI:10.1016/j.tetlet.2014.03.128
日期:2014.4
We developed an efficient method for the transformation of indoles by utilizing a copper catalyst and molecular oxygen as the oxidant. The transformation involves a tandem oxidative process of 2-arylindoles. Our reaction afforded a variety of N-benzoyl anthranilic acids and benzoxazinones. Our investigation revealed that the choice of solvent and additives is critical in these reactions. (C) 2014 Elsevier Ltd. All rights reserved.
Copper-Catalyzed C–N Bond Formation/Rearrangement Sequence: Synthesis of 4<i>H</i>-3,1-Benzoxazin-4-ones
作者:Zhi-Yuan Ge、Qiong-Ming Xu、Xiang-Dong Fei、Ting Tang、Yong-Ming Zhu、Shun-Jun Ji
DOI:10.1021/jo400515y
日期:2013.5.3
A facile and efficient copper-catalyzed method for the synthesis of 4H-3,1-benzoxazin-4-one derivatives has been developed. This procedure is based on a tandem intramolecular C-N coupling/rearrangement process. This method would provide a new and useful strategy for construction of N-heterocycles.
Zhang, Weijiang; Liu, Ruiyan; Cook, James M., Heterocycles, 1993, vol. 36, # 10, p. 2229 - 2236