Formal aromatic C-H insertion for stereoselective isoquinolinone synthesis and studies on mechanistic insights into the C-C bond formation.
J Org Chem
; 74(16): 6231-6, 2009 Aug 21.
Article
en En
| MEDLINE
| ID: mdl-19630375
ABSTRACT
Formal aromatic C-H insertion of rhodium(II) carbenoid was intensively investigated to develop a new methodology and probe its mechanism. Contrasting with the previously proposed direct C-H insertion, the mechanism was revealed to be electrophilic aromatic substitution, which was supported by substituent effects on the aromatic ring and a secondary deuterium kinetic isotope effect. Various isoquinolinones were synthesized intramolecularly via six-membered ring formation with high regio- and diastereoselectivity, while averting the common Buchner-type reaction. Intermolecularly, dirhodium catalyzed formal aromatic C-H insertion on electron-rich aromatics was also achieved.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Carbono
/
Hidrógeno
/
Isoquinolinas
Idioma:
En
Año:
2009
Tipo del documento:
Article