TAYLOR, E. C.;KATZ, A. H.;SALGADO-ZAMORA, H.;MCKILLOP, A., TETRAHEDRON LETT., 1985, 26, N 48, 5963-5966
作者:TAYLOR, E. C.、KATZ, A. H.、SALGADO-ZAMORA, H.、MCKILLOP, A.
DOI:——
日期:——
Thallium in organic synthesis. 68. A convenient synthesis of 2-phenylindoles from anilides
作者:Edward C. Taylor、Alan H. Katz、Hector Salgado-Zamora、Alexander McKillop
DOI:10.1016/s0040-4039(00)98272-8
日期:1985.1
Thallation of anilides with TTFA in a mixture of TFA and ether gives ortho-thallated derivatives, which yield 2-acetamido-tolanes upon reaction with copper(I) phenylacetylide in acetonitrile. Treatment of the latter compounds with palladium(II) chloride results in ring closure to give 1-acyl-2-phenylindoles, from which 2-phenyl-indoles are obtained by alkaline hydrolysis.