Light-driven organocatalysis using inexpensive, nontoxic Bi2O3 as the photocatalyst.
Angew Chem Int Ed Engl
; 53(36): 9613-6, 2014 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-25045109
ABSTRACT
The development of enantioselective catalytic processes that make use of sunlight as the energy source and nontoxic, affordable materials as catalysts represents one of the new and rapidly evolving areas in chemical research. The direct asymmetric α-alkylation of aldehydes with α-bromocarbonyl compounds can be successfully achieved by combining bismuth-based materials as low-band-gap photocatalysts with the second-generation MacMillan imidazolidinone as the chiral catalyst and simulated sunlight as a low-cost and clean energy source. This reaction also proceeded with high efficiency when the reaction vial was exposed to the morning sunlight on a clear September day in Tarragona, Spain.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article