1.
J Org Chem
; 78(16): 8074-82, 2013 Aug 16.
Artigo
em Inglês
| MEDLINE
| ID: mdl-23862687
RESUMO
The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis-chromenes.
Assuntos
Compostos de Epóxi/síntese química , Iminas/química , Catálise , Compostos de Epóxi/química , Cinética , Conformação Molecular , Sais/química , Estereoisomerismo
2.
Org Lett
; 11(9): 1991-3, 2009 May 07.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19354231
RESUMO
Concise highly enantioselective three-step syntheses are described for (-)-(3'S)-lomatin and (+)-(3'S,4'R)-trans-khellactone from 7-hydroxycoumarin in 97% ee and in 57% and 58% overall yields, respectively, using nonaqueous enantioselective epoxidation by an iminium salt as the key step.
