Rhodium(III)-Catalyzed Synthesis of Cinnolinium Salts from Azobenzenes and Diazo Compounds
作者:Xiaohong Chen、Guangfan Zheng、Guoyong Song、Xingwei Li
DOI:10.1002/adsc.201800326
日期:2018.8.6
A Rh(III)‐catalyzed C−H activation of azobenzenes in the coupling with diazo compounds has been realized, providing a straightforward strategy to access functionalized cinnolinium triflates in high yields. This protocol features silver free mild reaction conditions and compatibility with diverse functional groups. The coupling proceeds via initial Rh(III)‐catalyzed C−H alkylation, followed by zinc
A composition for film formation which can form a film suitable for use as an interlayer dielectric in a semiconductor device, etc. and having an appropriate even thickness and can give a film having excellent characteristics including permittivity and Young's modulus; and a dielectric film obtained from the film-forming composition. The composition contains a compound (X) having a functional group which is partly eliminated by heating, irradiation with light, irradiation with radiation, or a combination thereof to generate volatile matter and yield an unsaturated group in the remaining part of the functional group.
Rhodium(III)-Catalyzed Synthesis of Cinnolinium Salts from Azobenzenes and Alkynes: Application to the Synthesis of Indoles and Cinnolines
作者:Krishnamoorthy Muralirajan、Chien-Hong Cheng
DOI:10.1002/chem.201300922
日期:2013.5.10
Versatile salts: A new rhodium‐catalyzed synthesis of cinnolinium salts from various azobenzenes and alkynes under air is described. These salts readily transform into three important classes of products, including indoles, indoloindoles, and cinnolines (see scheme).