Hetero-Diels-Alder (HDA) Strategy for the Preparation of 6-Aryl- and Heteroaryl-Substituted Piperidin-2-one Scaffolds: Experimental and Theoretical Studies (Articolo in rivista)

Type
Label
  • Hetero-Diels-Alder (HDA) Strategy for the Preparation of 6-Aryl- and Heteroaryl-Substituted Piperidin-2-one Scaffolds: Experimental and Theoretical Studies (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/ejoc.201100930 (literal)
Alternative label
  • Long, S. ; Monari, M. ; Panunzio, M.; Bandini, E. ; D'Aurizio, A.; Venturini, A. (2011)
    Hetero-Diels-Alder (HDA) Strategy for the Preparation of 6-Aryl- and Heteroaryl-Substituted Piperidin-2-one Scaffolds: Experimental and Theoretical Studies
    in European journal of organic chemistry (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Long, S. ; Monari, M. ; Panunzio, M.; Bandini, E. ; D'Aurizio, A.; Venturini, A. (literal)
Pagina inizio
  • 6218 (literal)
Pagina fine
  • 6225 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • ISOF CNR, Area Ric Bologna, I-40129 Bologna, Italy Dipartimento Chim G Ciamician, I-49126 Bologna, Italy (literal)
Titolo
  • Hetero-Diels-Alder (HDA) Strategy for the Preparation of 6-Aryl- and Heteroaryl-Substituted Piperidin-2-one Scaffolds: Experimental and Theoretical Studies (literal)
Abstract
  • Preparation of piperidine-2-one scaffolds by the hetero-Diels-Alder (HAD) reaction, assisted by microwaves, is described. The versatility of this new approach has been demonstrated by the synthesis of racemic (+/-)-2-phenylpiperidine. Theoretical calculations have allowed us to clarify the factors that govern ring closure to form four-membered rings, arising from a Staudinger-type electrocyclization, and/or six-membered rings through a classical [4+2] HAD cyclization. This competition may be lowered by increasing the electronic demand of the dienophile, as anticipated by the computational studies. (literal)
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