Cyclic allenes or diradicals in the cyclization reactions of dienynes generated by photolysis of alkynylcyclohexadienones
J Org Chem
; 65(17): 5207-11, 2000 Aug 25.
Article
em En
| MEDLINE
| ID: mdl-10993347
Reported here are some rearrangements involving the electrocyclic ring closure of dieneynes 7. Such ring closures are envisaged to possibly give strained substituted cyclic allenes 8 which could also behave as diradicals 8a. The results show that compounds such as 5 rearrange to cyclohexadienones 9a, 9b, or 11 through these kind of intermediates. Theoretical calculations performed on simple models similar to the intermediates suggest that the nature of these intermediates correspond to that of cyclic allenes.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
J Org Chem
Ano de publicação:
2000
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Estados Unidos