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).
Studies on the possible interconversion of phenylhydrazones and phenylazoalkanes. Part III. Adipaldehyde bisphenylhydrazone
作者:A. J. Bellamy、R. D. Guthrie、G. J. F. Chittenden
DOI:10.1039/j39660001989
日期:——
Reagents which oxidise phenylhydrazino groups to phenylazo groups, e.g., oxygen and yellow mercuric oxide, convert adipaldehyde bisphenylhydrazone into trans-1,2-bisphenylazocyclohexane. The mechanism of this conversion has been investigated. Glutaraldehyde bisphenylhydrazone does not behave similarly.