The amide C–N bond of isatins as the directing group and the internal oxidant in Ru-catalyzed C–H activation and annulation reactions: access to 8-amido isocoumarins
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。
Copper-Catalyzed Chemoselective O-Arylation of Oxindoles: Access to Cyclic Aryl Carboxyimidates
作者:Prasoon Raj Singh、Manisha Lamba、Avijit Goswami
DOI:10.1021/acs.joc.3c02341
日期:2024.3.1
chemoselective CuO-catalyzed strategy for the O-arylation of 2-oxindoles to synthesize 2-phenoxy-3H-indole and 2-phenoxy-1H-indole derivatives in the presence of diaryl iodonium salts. This method offers a variety of O-arylated oxindoles in good to excellent yields under relatively milder reaction conditions. Furthermore, this methodology was extended for the O-arylation of 2-pyridinone and isoindoline-1-one
我们开发了一种高效的无碱和无添加剂的化学选择性 CuO 催化策略,用于在存在 2-oxindoles 的情况下进行 O-芳基化合成 2-phenoxy-3 H -indole 和 2-phenoxy-1 H -indole 衍生物。二芳基碘鎓盐。该方法在相对温和的反应条件下以良好至优异的收率提供了各种O-芳基化羟吲哚。此外,该方法还扩展到 2-吡啶酮和异吲哚啉-1-酮衍生物的 O-芳基化。