Siyi Bai, Xun Chen, Xinwei Hu, Yuanfu Deng, Huanfeng Jiang and Wei Zeng
Org. Biomol. Chem., 2017,15, 3638-3647
DOI:
10.1039/C7OB00367F,
Paper
An Ir(III)-catalyzed relay aryl C–H bond carbenoid insertion cascade of N-aryl-2-pyridinamines with diazo Meldrum's acid has been developed. This method provides an efficient approach to multifunctionalized 1,3-dihydroindol-2-ones with a broad range of functional group tolerance. Furthermore, this protocol could be applied for the concise synthesis of bioactive hematopoietic growth factor analogues.