A palladium-catalyzed synthesis of isatins (1H-Indole-2,3-diones) from 1-(2-haloethynyl)-2-nitrobenzenes
作者:Björn C.G. Söderberg、Sobha P. Gorugantula、Chet R. Howerton、Jeffrey L. Petersen、Shubhada W. Dantale
DOI:10.1016/j.tet.2009.06.098
日期:2009.9
An inherently regiospecific synthesis of isatins (1H-indole-2,3-diones) starting from 1-halo-2-nitrobenzenes is described. The isatins are formed by an intramolecular palladium-catalyzedannulation of 2-(2-haloethynyl)-1-nitrobenzenes via the formation of 2-haloisatogens.
Mild and efficient oxy-iodination of alkynes and phenols with potassium iodide and tert-butyl hydroperoxide
作者:K. Rajender Reddy、M. Venkateshwar、C. Uma Maheswari、P. Santhosh Kumar
DOI:10.1016/j.tetlet.2010.02.074
日期:2010.4
An efficient synthesis of 1-iodoalkynes and iodophenols was easily achieved by employing simple KI and TBHP. The reaction does not involve the use of a metal and base combination. A variety of substituted alkynes and phenols were prepared with good to excellent yield. (c) 2010 Elsevier Ltd. All rights reserved.
2-Iodoisatogens: Versatile Intermediates for the Synthesis of Nitrogen Heterocycles
作者:Elvis J. M. Maduli、Steven J. Edeson、Stephen Swanson、Panayiotis A. Procopiou、Joseph P. A. Harrity
DOI:10.1021/ol503487f
日期:2015.1.16
A Cu-promoted cyclization of 2-nitrophenyl iodoacetylenes provides a direct route to a range of 2-iodoisatogens. These compounds represent useful intermediates for the late-stage elaboration of the C-I bond to furnish isatins and a range of alternative heterocyclic products.