A facile synthesis of 2H-indazoles under neat conditions and further transformation into aza-γ-carboline alkaloid analogues in a tandem one-pot fashion
Copper−Diamine-Catalyzed <i>N</i>-Arylation of Pyrroles, Pyrazoles, Indazoles, Imidazoles, and Triazoles
作者:Jon C. Antilla、Jeremy M. Baskin、Timothy E. Barder、Stephen L. Buchwald
DOI:10.1021/jo049658b
日期:2004.8.1
This paper details the copper-catalyzed N-arylation of π-excessive nitrogenheterocycles. The coupling of either aryl iodides or aryl bromides with common nitrogenheterocycles (pyrroles, pyrazoles, indazoles, imidazoles, and triazoles) was successfully performed in good yield with catalysts derived from diamine ligands and CuI. General conditions were found that tolerate functional groups such as
We report an efficient synthesis of imidazo[1,2-b]indazole starting from 2-(2H-indazol-2-yl)aniline with aryl/heteroaryl/aliphatic bromide. This novel transformation involves a one-pot Cu-catalyzed cascade process combining C–N coupling between 2-(2H-indazol-2-yl)aniline and aryl/heteroaryl/aliphatic bromide followed by intramolecular C–H amination to afford the desired compounds in good yields.
我们报告从2-(2 H-吲唑-2-基)苯胺与芳基/杂芳基/脂肪族溴化物开始,合成咪唑并[1,2- b ]吲唑。这种新颖的转化涉及一锅Cu催化的级联过程,该过程结合了2-(2 H-吲唑-2-基)苯胺与芳基/杂芳基/脂肪族溴化物之间的C–N偶联,然后进行分子内CH–H胺化反应化合物产量高。
Ardakani, Manouchehr Azadi; Smalley, Robert K.; Smith, Richard H., Journal of the Chemical Society. Perkin transactions I, 1983, # 10, p. 2501 - 2506
作者:Ardakani, Manouchehr Azadi、Smalley, Robert K.、Smith, Richard H.
DOI:——
日期:——
ARDAKANI, MANOUCHEHR, AZADI;SMALLEY, R. K.;SMITH, R. H., J. CHEM. SOC. PERKIN TRANS., 1983, N 10, 2501-2506
作者:ARDAKANI, MANOUCHEHR, AZADI、SMALLEY, R. K.、SMITH, R. H.