Concise Asymmetric Synthesis of Fully Substituted Isoxazoline-N-Oxide through Lewis Base Catalyzed Nitroalkene Activation
作者:Cheng Zhong、Lekh Nath S. Gautam、Jeffrey L. Petersen、Novruz G. Akhmedov、Xiaodong Shi
DOI:10.1002/chem.201001237
日期:2010.8.2
Transforming isoxazoline‐N‐oxides: A concise asymmetric synthesis of isoxazoline‐N‐oxides is reported through secondaryamine Lewis base catalyzednitroalkene activation and sequential intermolecular condensation with aldehydes and ylides. Application of camphor‐derived chiral sulfur ylides gave the enantiomeric‐enriched isoxazoline‐N‐oxides in excellent yields and stereoselectivity. Simple transformations