TBSOTf-assisted three component coupling of epoxides, THF, and ylides derived from the phosphoniosilylation products of enones and α,β-unsaturated lactones

Ylides 3, derived from the phosphoniosilylation products of enones and α,β-unsaturated lactones, were reacted with epoxides 4 and TBSOTf in THF. Interestingly, the three component coupling products 5–8 were obtained after subsequent desilylation.

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