Efficient Construction of Oxa- and Aza-[n.2.1] Skeletons: Lewis Acid Catalyzed Intramolecular [3+2]Cycloaddition of Cyclopropane 1,1-Diesters with Carbonyls and Imines
摘要:
Building bridges: A Lewis acid promoted intramolecular [3+2]cycloaddition of cyclopropane 1,1-diesters with aldehydes, ketones, and imines (see scheme) has been developed to provide a general and efficient strategy for construction of bridged oxa- and aza-[n.2.1] (n=2,3,4) skeletons. To highlight this method, the core of platensimycin was also constructed.
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DOI:
10.1002/anie.201000563
被引量:
年份:
2010
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