Enantioselective protonation of α-hetero carboxylic acid-derived ketene disilyl acetals under chiral ionic Brønsted acid catalysis.
Chem Commun (Camb)
; 50(88): 13489-91, 2014 Nov 14.
Article
em En
| MEDLINE
| ID: mdl-25234847
ABSTRACT
Highly enantioselective protonation of α-halo and alkoxy carboxylic acid-derived ketene disilyl acetals is achieved by using P-spiro chiral diaminodioxaphosphonium barfate as a Brønsted acid catalyst, where the enantiofacial discrimination by the catalyst mainly stems from the recognition of the electronic difference between two substituents on the ketene disilyl acetal.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Silanos
/
Ácidos Carboxílicos
/
Etilenos
/
Cetonas
/
Acetais
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article