Reactions of Vinylcyclopropane and Bicyclopropyl Compounds With Maleic Anhydride

Vinylcyclopropane and bicyclopropyl C6 compounds are studied as diene precursors in the Diels-Alder reaction. Their rearrangement under different thermal and microwave conditions leads to specific isomeric hexa-, penta- or butadienes, condensed with maleic anhydride as a dienophile. Adduct stereochemistries were compared to those of previously-synthesized model compounds, and are fully characterized with 2D NMR and GC-MS spectroscopies. Some unsaturated terpenes bearing vinylcyclopropane moieties were also condensed, and their adduct structures assigned.

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Bibliographic Details
Main Authors: Jankowski,C. K., Pelletier,A., Díaz,Eduardo, Belanger,Jacqueline M. R., Paré,J.R. J., Lamouroux,C., Boivin,J.
Format: Digital revista
Language:English
Published: Sociedad Química de México A.C. 2009
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2009000400003
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Description
Summary:Vinylcyclopropane and bicyclopropyl C6 compounds are studied as diene precursors in the Diels-Alder reaction. Their rearrangement under different thermal and microwave conditions leads to specific isomeric hexa-, penta- or butadienes, condensed with maleic anhydride as a dienophile. Adduct stereochemistries were compared to those of previously-synthesized model compounds, and are fully characterized with 2D NMR and GC-MS spectroscopies. Some unsaturated terpenes bearing vinylcyclopropane moieties were also condensed, and their adduct structures assigned.