Syntheses of Benzo[c]Chromen-6-ones by Palladium Catalyzed C-H Bond Activation using Diazonium Salts.
Nat Prod Commun
; 12(4): 537-540, 2017 Apr.
Article
em En
| MEDLINE
| ID: mdl-30520591
ABSTRACT
An efficient palladium catalyzed C-H bond activation for the synthesis of benzo[c]chromen-6-ones using diazonium salts is described. In the presence of Pd(OAc)2, dppp, PivOH and K2CO3, the diazonium salt can be transformed into the product through a denitrogenation/C-H bond activation/cyclization sequence in acetonitrile. Altogether, nine structurally diverse substituted benzoLc]chromen-6-ones were prepared in excellent yields through two different methods.
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Base de dados:
MEDLINE
Assunto principal:
Paládio
/
Compostos de Diazônio
/
Compostos Heterocíclicos
Idioma:
En
Revista:
Nat Prod Commun
Ano de publicação:
2017
Tipo de documento:
Article