alkaline earth salt of/the/ methylsulfuric acid 在
jones reagent 作用下,
以
丙酮 为溶剂,
以96%的产率得到4,5-dihydro-5-(4-(2-propenyl)cyclohexen-1-yl)-2(3H)-furanone
参考文献:
名称:
A practical method for using alkoxide-accelerated vinylcyclobutane ring expansions in the synthesis of six-membered rings. Unexpected orbital symmetry allowed and forbidden 1,3-sigmatropic rearrangements