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Low temperature n-butyllithium-induced [3,3]-sigmatropic rearrangement/electrophile trapping reactions of allyl-1,1-dichlorovinyl ethers. Synthesis of β-, γ- and δ-lactones. | LitMetric

Treatment of allyl-1,1-dichlorovinyl ethers with n-BuLi at -78 °C, followed by quenching with ketones, epoxides, and oxetanes, leads to highly substituted β-, γ-, and δ-lactones in good to excellent yields.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3845887PMC
http://dx.doi.org/10.1039/c3ob41777hDOI Listing

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