Synthesis of fused indoles by sequential palladium-catalyzed Heck reaction and N-heteroannulation
作者:Björn C.G. Söderberg、Jeremiah W. Hubbard、Stacey R. Rector、Shannon N. O'Neil
DOI:10.1016/j.tet.2005.02.033
日期:2005.4
A route to 3,4-fused indoles via two consecutive palladium-catalyzed reactions; an intramolecular Heckreaction followed by a reductive N-heteroannulation is described. Using this route, a number of indoles have been prepared having a variety of ring sizes anchored to the 3- and 4-position of the indole nucleus. Furthermore, a number of functional groups, both carbon and heteroatom substituents can