The radical 1,5-chloropentafluorosulfanylation of vinyl cyclopropanes (VCPs) initiated by Et₃B/O₂ affords allylic pentafluorosulfanyl/homoallylic chloride products through the ring-strain release of the cyclopropane. The VCP substitution pattern was investigated. The utility of this reaction was illustrated in post-transformation of the C═C bond by ozonolysis, giving access to valuable α-SF₅ carbonyl compounds.

中文翻译：

---

未活化乙烯基环丙烷的自由基 1,5-氯五氟磺基化和转化为 α-SF5 酮

由 Et ₃ B/O ₂引发的乙烯基环丙烷 (VCP) 的自由基 1,5-氯五氟硫烷基化通过环丙烷的环应变释放提供烯丙基五氟硫烷基/高烯丙基氯产物。研究了 VCP 取代模式。该反应的效用在通过臭氧分解 C=C 键的后转化中得到了说明，从而获得了有价值的 α-SF ₅羰基化合物。