使用[Au(PPh 3)] Cl / Ag 2 CO 3催化的5 -endo-dig环化反应水在微波辐射下,我们开发了一种快速,绿色的路线,由N'-取代的N-(2-炔基苯基)脲制备吲哚-1-甲酰胺。所述方法可耐受多种官能团,包括N'-芳基,烷基,杂环,各种N-(取代的-2-乙炔基苯基)和N-(2-乙炔基吡啶-3-基)脲,并提供中等至高产率的所需产物。
ruthenium-catalyzed C2-hydroindolation of alkynes has been described. This transformation provides a rapid access to free (N–H) C2-syn-alkenylated indole derivatives with the assistance of copper(II) salts, in which the directing group is removed via a one-pot process.
Selective C-2 functionalization of N-protected and free indoles is reported. The ruthenium-catalyzed C-2 activation of indoles provided an easyaccess to cyclopentenylated indoles. Hydroheteroarylated bicyclic motifs were synthesized via iridium-catalyzed C-2 activation of NH indoles. The methodology was extended to different bicyclic adducts such as diaza- or urea-derived bicyclic olefins.
Neutral acylation (protection) of the indole nitrogen: A simple synthesis of indole-1-carboxylates, indole-1-thiocarboxylates and indole-1-carboxamides
作者:John E. Macor、Alison Cuff、Lyndon Cornelius
DOI:10.1016/s0040-4039(99)00352-4
日期:1999.4
A simple synthesis of indole-1-carboxylates, indole-1-thiocarboxylates and indole-1-carboxamides () under neutral conditions is described.
描述了在中性条件下吲哚-1-羧酸盐,吲哚-1-硫代羧酸盐和吲哚-1-羧酰胺的简单合成。
AlMe<sub>3</sub>-Mediated Regio- and Chemoselective Reactions of Indole with Carbamoyl Electrophiles
作者:A. Velavan、S. Sumathi、K. K. Balasubramanian
DOI:10.1002/ejoc.201300085
日期:2013.5
we report the regio- and chemoselectivereactions of indole with carbamoylelectrophiles in presence of AlMe3. Indole-3-carboxamide was prepared in one-step from a reaction of indole with tertiary carbamoylimidazole in the presence AlMe3. Under conditions for the formation of an aluminium ate complex, the reaction was diverted to the indole nitrogen. Secondary carbamoylelectrophiles in the presence