Enantioselective Photooxygenation of β-Keto Esters by Chiral Phase-Transfer Catalysis using Molecular Oxygen

Enantioselective Photooxygenation of β-Keto Esters by Chiral Phase-Transfer Catalysis using Molecular Oxygen

Seen to be green: A highly efficient and green method for catalyzing the enantioselective photooxygenation of β‐keto esters with molecular oxygen in the presence of chiral phase‐transfer catalysts has been developed. High yields (up to 93 %) and good enantiomeric excesses (up to 75 %) could be obtai...

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Veröffentlicht in:Chemistry, an Asian journal an Asian journal, 2012-09, Vol.7 (9), p.2019-2023
Hauptverfasser: Lian, Mingming, Li, Zhi, Cai, Yuanchun, Meng, Qingwei, Gao, Zhanxian
Format: Artikel
Sprache:eng
Schlagworte:
asymmetric catalysis
Catalysis
Esters
Ketones - chemistry
Light
Oxygen - chemistry
phase-transfer catalysis
photooxygenation
singlet oxygen
Singlet Oxygen - chemistry
Stereoisomerism
β-keto esters
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Beschreibung
Zusammenfassung:Seen to be green: A highly efficient and green method for catalyzing the enantioselective photooxygenation of β‐keto esters with molecular oxygen in the presence of chiral phase‐transfer catalysts has been developed. High yields (up to 93 %) and good enantiomeric excesses (up to 75 %) could be obtained, and a plausible reaction mechanism has been proposed to explain the outcome of the reaction.
ISSN:1861-4728
1861-471X
DOI:10.1002/asia.201200358