1022-43-1Relevant academic research and scientific papers
Pd(II)-Catalyzed Synthesis of Alicyclic[b]-Fused Pyridines via C(sp2)–H Activation of α,β-Unsaturated N-Acetyl Hydrazones with Vinyl Azides
Nie, Biao,Wu, Wanqing,Jin, Chuanfei,Ren, Qingyun,Zhang, Ji,Zhang, Yingjun,Jiang, Huanfeng
, p. 159 - 171 (2022/01/03)
A new synthetic protocol for alicyclic[b]-fused pyridines with complete regioselectivity from α,β-unsaturated N-acetyl hydrazones and vinyl azides via Pd(II)-catalyzed C–H activation/cyclization/aromatization strategy has been described. A series of five-
Access to Cycloalkeno[ c]-Fused Pyridines via Pd-Catalyzed C(sp2)-H Activation and Cyclization of N-Acetyl Hydrazones of Acylcycloalkenes with Vinyl Azides
Nie, Biao,Wu, Wanqing,Ren, Qingyun,Wang, Zhongqing,Zhang, Ji,Zhang, Yingjun,Jiang, Huanfeng
, p. 7786 - 7790 (2020/11/02)
A novel Pd(II)-catalyzed vinylic C-H activation and cyclization has been developed, reacting a series of small, medium, and large N-acetyl hydrazones of acylcycloalkenes with vinyl azides to access diverse cycloalkeno[c]-fused pyridine scaffolds. This protocol provides progress in C(sp2)-H bond activation of medium to large cycloalkenes, and the target products can be obtained in a specific regioselectivity with good functional group tolerance and a broad substrate scope.
