Anion receptors based on 7,7′-diamido-2,2′-diindolylmethane
作者:Paweł Dydio、Tomasz Zieliński、Janusz Jurczak
DOI:10.1039/b907164d
日期:——
7-Aminoindole has been successfully used as a building block for the construction of new anionreceptors that have strong a affinity towards anions, especially dihydrogen phosphate, even in very competitive solvents.
We report the development of a rapid approach for directly converting indoles into 2-oxindoles promoted by HOCl formed in situ from the combination of (bis(trifluoroacetoxy) iodo)benzene (PIFA) and n-Bu4NCl ⋅ H2O. The procedure is widely functional group tolerant and provides 2-oxindoles in up to 95% yield within 5 min. The potential applications of the developed methodology are demonstrated by the
One-pot N-alkylation/Heck approach to substituted indoles
作者:Melissa L. Weinrich、Hilary P. Beck
DOI:10.1016/j.tetlet.2009.09.144
日期:2009.12
Here, we report the palladium-catalyzed one-pot N-alkylation/Heck cyclization of anilines to substituted indoles employing Pd(OAc)(2)/XPhos. The scope and limitations of this methodology will be described. (C) 2009 Elsevier Ltd. All rights reserved.
Fadda, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1990, vol. 29, # 11, p. 1017 - 1019