Catalytic Enantioselective Desymmetrization of 1,3-Diazido-2-propanol via Intramolecular Interception of Alkyl Azides with Diazo(aryl)acetates
2014
Wu, Xiu-Ping | Su, Yan | Gu, Peiming
The first catalytic enantioselective desymmetrization of 1,3-diazido-2-propanol via an intramolecular interception of alkyl azides by Cu–carbenoids has been realized. A wide range of 1,3-diazidoisopropyl diazo(aryl)acetates were converted to cyclic α-imino esters in the presence of bisoxazoline ligand (S,S)-Ph-Box with good to excellent yields, and the enantiomeric excess was up to 97%.
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