Advanced Synthesis and Catalysis p. 3146 - 3150 (2011)
Update date:2022-07-29
Topics:
Zhou, Hongwei
Xing, Yanpeng
Liu, Le
Hong, Junjie
A facile and efficient synthesis of medium rings via a bicyclic sulfonium ion was developed. Spectroscopic evidence for the formation of an intermediate sulfonium moiety is provided. The sulfur atom served as a "bridge" to access the medium ring system and could be removed after use via a Ramberg-Baecklund process. As a result of the readily available starting materials, simple operation, and mild conditions, these reactions should be an appealing strategy in organic synthesis. Copyright
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