An enantioselective synthesis of 2-aryl cycloalkanones by Sc-catalyzed carbon insertion.
Org Lett
; 13(8): 2004-7, 2011 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-21401070
ABSTRACT
Current methods for asymmetric α-arylation require blocking groups to prevent reaction at the α'-carbon, basic conditions that promote racemization, or multistep synthesis. This work records the first catalytic enantioselective examples of the diazoalkane-carbonyl homologation reaction. Medium ring 2-aryl ketones are prepared in one step in up to 982 er and 99% yield from the unsubstituted lower homologue by Sc-catalyzed aryldiazomethyl insertion with simple bis- and tris(oxazoline) ligands.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Org Lett
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos