摘要 N-氟苯磺酰亚胺(NFSI)通过钯催化以中等到良好的产率实现了2-芳基苯并[ d ]恶嗪酮的单氟化。在硝酸盐的促进下,该反应提供了经济和环境友好的策略。单氟2-芳基苯并[ d ]恶嗪酮的合成与许多常见的官能团具有良好的相容性。讨论了这种单氟化的可能机理。 N-氟苯磺酰亚胺(NFSI)通过钯催化以中等到良好的产率实现了2-芳基苯并[ d ]恶嗪酮的单氟化。在硝酸盐的促进下,该反应提供了经济和环境友好的策略。单氟2-芳基苯并[ d ]恶嗪酮的合成与许多常见的官能团具有良好的相容性。讨论了这种单氟化的可能机理。
Copper-Catalyzed C-N, C-O Coupling Reaction of Arylglyoxylic Acids with Isatins
作者:Rashmi Prakash、Sanjib Gogoi
DOI:10.1002/adsc.201600516
日期:2016.10.6
The copper(II)‐catalyzed decarboxylative couplingreactions of arylglyoxylic acids with isatins afford 4H‐benzo[d][1,3]oxazin‐4‐ones via decarbonylation and concurrent C–N, C–O bond formation.
芳基乙醛酸与Isatin的铜(II)催化的脱羧偶联反应通过脱羰作用和同时的C–N,C–O键形成提供4 H-苯并[ d ] [1,3]恶嗪-4-酮。
One-pot approach to 2-arylbenzoxazinone derivatives from 2-alkynylanilines using copper-mediated tandem reactions
作者:Mitsuaki Yamashita、Akira Iida
DOI:10.1016/j.tet.2014.06.056
日期:2014.9
describe a one-pot method to obtain a variety of 2-arylbenzoxazinones and N-benzoyl anthranilic acid by using a copper catalyst and molecular oxygen as oxidants. This protocol involves tandem cyclization and oxidative processes of 2-alkynylanilines to afford significant motifs in synthetic and medicinal chemistry with moderate yields. We also demonstrated that combining the Sonogashiracoupling and the
A novel and efficient method for the oxidation of 2-arylindoles to synthesize 2-arylbenzoxazinones utilizing oxone as the sole oxidant has been developed. The reaction tolerates a wide range of functional groups and allows quick and atom-economical assembly of a variety of valuable 2-arylbenzoxazinones in high yields.
Palladium (0)-catalyzed C(sp)-H oxygenation with carboxylic acids
作者:Jia-Yuan Yong、Huu-Manh Vu、Xu-Qin Li、Ai-Jun Gong
DOI:10.1016/j.tet.2020.130969
日期:2020.3
Palladium (0)-catalyzed Ortho-benzoxylation of the sp2 C–H bond of arylbenzoxazinones with carboxylic acid is reported. With benzoxazinone as directing group, the reaction went smoothly under the benign condition and gave the desired product with excellent ortho selectivity. This procedure is compatible with a wide range of functional groups without the use of any ligands or additives. This method
Recyclable Heterogeneous Palladium-Catalyzed Carbonylative Cyclization of 2-Iodoanilines with Aryl Iodides Leading to 2-Arylbenzoxazinones
作者:Zhaotao Xu、Bin Huang、Zebiao Zhou、Mingzhong Cai
DOI:10.1055/s-0039-1690265
日期:2020.2
A highly efficient and practical heterogeneous palladium-catalyzedcarbonylative coupling of 2-iodoanilines with aryl iodides has been developed. The reaction occurs smoothly in toluene at 110 °C with N,N-diisopropylethylamine as base under carbon monoxide (5 bar) and offers a general and powerful tool for the construction of various valuable 2-arylbenzoxazinones with excellent atom-economy, high functional