Sonogashira Cross-Coupling Reactions
and Construction of the Indole Ring System Using a Robust, Silica-Supported
Palladium Catalyst
作者:Elizabeth Tyrrell、Leon Whiteman、Neil Williams
DOI:10.1055/s-0028-1083375
日期:——
The use of a recyclable silica-supported palladium catalyst in Sonogashira couplings and indole syntheses using a range of functionalised substrates is described. The catalyst is shown to be both robust and versatile, effecting the synthesis of 2-phenylindole in quantitative yield without the need for N-protection, a copper cocatalyst, a base, or a solvent.