Synthesis of Dispiro [Flavanone/Chromanone/Tetralone]-Pyrrolo[1,2-a] Isoquinolinespiro[3.2]Acenaphthen-1-One Systems Through Three Component 1,3-Dipolar Cycloaddition Reaction

Jayadevan      Jayashankaran; Rathna      Durga R.S. Manian; Raghavachary      Raghunathan

Letters in Organic Chemistry

Author(s): Jayadevan Jayashankaran, Rathna Durga R.S. Manian and Raghavachary Raghunathan

DOI: 10.2174/157017806779468022

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Synthesis of Dispiro [Flavanone/Chromanone/Tetralone]-Pyrrolo[1,2-a] Isoquinolinespiro[3.2]Acenaphthen-1-One Systems Through Three Component 1,3-Dipolar Cycloaddition Reaction

Page: [917 - 921] Pages: 5

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Abstract

The cycloaddition reaction of non-stabilized azomethine ylides towards (E)-3-arylidene-4- flavanone, (E)-3- arylidene-4-chromanone and (E)-2-arylidene-1-tetralone as dipolarophiles has been investigated. High degree of regioselectivity has been observed in the synthesis of a new class of functionalised dispiroheterocyclic compound containing dispiro pyrrolo-isoquinoline and acenaphthequinone framework.

Keywords: 1,3-dipole, quinolines, flavanone, chromanone, tetralone, azomethine ylide

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