Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde

A new example of the reactivity of enals with benzoylnitromethane was studied in a Michael-Michael-Aldol-Dehydration quadruple organocascade reaction. The reaction unexpectedly yielded a tetrasubstituted cyclohexene carbaldehyde with excellent enantiomeric excess when crotonaldehyde was used as the...

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Main Authors: Fredy A. David Rodriguez, Mauricio Maldonado Villamil, James Guevara-Pulido
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2020/9248793
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author Fredy A. David Rodriguez
Mauricio Maldonado Villamil
James Guevara-Pulido
author_facet Fredy A. David Rodriguez
Mauricio Maldonado Villamil
James Guevara-Pulido
author_sort Fredy A. David Rodriguez
collection DOAJ
description A new example of the reactivity of enals with benzoylnitromethane was studied in a Michael-Michael-Aldol-Dehydration quadruple organocascade reaction. The reaction unexpectedly yielded a tetrasubstituted cyclohexene carbaldehyde with excellent enantiomeric excess when crotonaldehyde was used as the Michael-acceptor, whereas using (E)-Hex-2-enal as the Michael-acceptor formed a cyclic hemiacetal by steering the reaction into the intramolecular formation of the same intermediate via a Michael-Heterocyclization domino reaction.
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spelling doaj-art-a18e4fccb00a447ab9a2229dd8dce5432025-02-03T05:53:53ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/92487939248793Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene CarbaldehydeFredy A. David Rodriguez0Mauricio Maldonado Villamil1James Guevara-Pulido2Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Bogotá 11001, ColombiaDepartamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Bogotá 11001, ColombiaQuímica Farmacéutica, Universidad El Bosque, Bogotá 11001, ColombiaA new example of the reactivity of enals with benzoylnitromethane was studied in a Michael-Michael-Aldol-Dehydration quadruple organocascade reaction. The reaction unexpectedly yielded a tetrasubstituted cyclohexene carbaldehyde with excellent enantiomeric excess when crotonaldehyde was used as the Michael-acceptor, whereas using (E)-Hex-2-enal as the Michael-acceptor formed a cyclic hemiacetal by steering the reaction into the intramolecular formation of the same intermediate via a Michael-Heterocyclization domino reaction.http://dx.doi.org/10.1155/2020/9248793
spellingShingle Fredy A. David Rodriguez
Mauricio Maldonado Villamil
James Guevara-Pulido
Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde
Journal of Chemistry
title Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde
title_full Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde
title_fullStr Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde
title_full_unstemmed Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde
title_short Organocatalytic Cascade Reaction of Aliphatic Enals and Benzoylnitromethane: Synthesis of Enantioenriched Tetrasubstituted Cyclohexene Carbaldehyde
title_sort organocatalytic cascade reaction of aliphatic enals and benzoylnitromethane synthesis of enantioenriched tetrasubstituted cyclohexene carbaldehyde
url http://dx.doi.org/10.1155/2020/9248793
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