Abstract:As the first known example of ring‐opening cross metathesis (ROCM) of polyfluorinated strained cyclobutenes, ROCM of 3,3,4,4‐tetrafluorocyclobutene with electronically rich alkenes, catalyzed by Grubbs or Hoveyda‐Grubbs 2nd generation precatalysts, gave a small library of non‐symmetrical isolated dienes bearing a tetrafluoroethylene spacer between the double bonds. 1‐Butoxy‐3,3,4,4‐tetrafluorohexa‐1,5‐diene thus formed underwent subsequent regioselective cross metathesis (CM) with a series of styrenes, catalyz… Show more
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