Transannular [4C+3C]-Cycloaddition Reactions of Oxyallyl Cation to Furan

[摘要]：For the first time, successful transannular [4+3]-cycloaddition reactions based on an oxyallyl cation intermediate are reported. The key steps involve the synthesis of the macrocyclic precursor and the transanuular [4C+3C]-cycloaddition step.

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