Palladium-Catalyzed Direct Arylation of Aryl(azaaryl)methanes with Aryl Halides Providing Triarylmethanes
摘要:
Direct arylation of aryl(azaaryl)methanes with aryl halides takes place at the benzylic position in the presence of a hydroxide base under palladium catalysis to yield triarylmethanes.
Palladium-Catalyzed Direct Arylation of Aryl(azaaryl)methanes with Aryl Halides Providing Triarylmethanes
作者:Takashi Niwa、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1021/ol0708119
日期:2007.6.1
Direct arylation of aryl(azaaryl)methanes with aryl halides takes place at the benzylic position in the presence of a hydroxide base under palladium catalysis to yield triarylmethanes.
Iron-Catalyzed C-H Bond Functionalization for the Exclusive Synthesis of Pyrido[1,2-<i>a</i>]indoles or Triarylmethanols
作者:Iyyanar Karthikeyan、Govindasamy Sekar
DOI:10.1002/ejoc.201403233
日期:2014.12
The efficient and selective iron-catalyzed C–H activation of 2-benzhydrylpyridine derivatives was employed for the preparation of pyrido[1,2-a]indoles through an intramolecular C–H amination reaction. In the presence of molecularoxygen as the sole oxidant, the same 2-benzhydrylpyridines were also used for the synthesis of the corresponding tertiary alcohols. In these approaches, the iron catalyst