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Lewis Acid Catalyzed Nenitzescu Indole Synthesis.

✍ Scribed by Valeriya S. Velezheva; Albert G. Kornienko; Sergey V. Topilin; Ascar D. Turashev; Alexander S. Peregudov; Patrick J. Brennan

Publisher
John Wiley and Sons
Year
2006
Weight
18 KB
Volume
37
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

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πŸ“œ SIMILAR VOLUMES

Lewis acid catalyzed nenitzescu indole s
Lewis acid catalyzed nenitzescu indole synthesis
✍ Valeriya S. Velezheva; Albert G. Kornienko; Sergey V. Topilin; Ascar D. Turashev πŸ“‚ Article πŸ“… 2006 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 131 KB

## Abstract magnified image A novel method for Lewis acid catalyzed Nenitzescu indole syntheses of 5‐hydroxyindoles bearing different substituents in positions 1 )Alk, Bn, Ar), 2 )Me, Et, Ph), and 3 )COOEt, COMe, CONHPh) as well as tricyclic derivatives are reported. The method is simple, rapid, e

Lewis acid catalyzed rapid synthesis of
Lewis acid catalyzed rapid synthesis of 5-hydroxy-benzo[g]indole scaffolds by a modified Nenitzescu reaction
✍ Moyurima Borthakur; Shyamalee Gogoi; Junali Gogoi; Romesh C. Boruah πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 French βš– 595 KB

A fast solvent-less synthesis of 5-hydroxy-benzo[g]indole scaffolds is accomplished from Lewis acid-catalyzed one-pot reaction of naphthoquinone, x-morpholinoacetophenone, and urea under microwave irradiation. The key step in the synthesis is the Michael addition followed by in situ aza cyclization

The role of a Lewis acid in the Nenitzes
The role of a Lewis acid in the Nenitzescu indole synthesis
✍ Valeriya S. Velezheva; Andrey I. Sokolov; Albert G. Kornienko; Konstantin A. Lys πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 French βš– 348 KB

A highly efficient Lewis acid-catalyzed method for the Nenitzescu synthesis of 5-hydroxyindoles with a range of substituents at N-1 and C-3 and symmetric 5,5 0 -dihydroxydiindoles has been developed. The amount of the catalyst (10-100 mol %) required depended on the nature of the enaminone component

The solid-phase Nenitzescu indole synthe
The solid-phase Nenitzescu indole synthesis
✍ Daniel M Ketcha; Lawrence J Wilson *; David E Portlock πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 French βš– 157 KB

The solid-phase version of the Nenitzescu indole synthesis of 5-hydroxyindole-3-carboxamides is reported. This process involves initial acetoacetylation of ArgoPore 1 -Rink-NH 2 resin with diketene to aord a polymer-bound acetoacetamide. Formation of the corresponding enaminones via condensation wit