Intramolecular Diels-Alder reactions of cyclopropenone ketals.
Org Lett
; 12(15): 3540-3, 2010 Aug 06.
Article
em En
| MEDLINE
| ID: mdl-20614867
ABSTRACT
The first intramolecular cycloaddition reactions of cyclopropenone ketals with tethered electron-deficient, electron-rich, and neutral 1-substituted dienes are reported, constituting inverse electron demand, normal, and neutral Diels-Alder reactions, that provide exclusively the exo [4 + 2] cycloaddition products without the intervention of [1 + 2], [3 + 2], or [3 + 4] cycloadducts in reactions whose courses do not depend on the reaction conditions, the diene activating substituent, or the nature of the tethering.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polienos
/
Ciclopropanos
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article