Super active catalysts, MoO3/ and MoO3–x/βTiO2 activated with SnMe4, for a structure retaining alkene metathesis

Abstract

The activity for alkene metathesis on MoO₃/or MoO_3–x/β-TiO₂(0.1 < x < 0.7) was enhanced more than 10³ times after treating with SnMe₄, while the hydrogen scrambling as well as the double bond mirgation of the alkenes were not influenced by this treatment; the metathesis of inner alkenes on these activated catalysts was characteristic since the cis or trans conformation of starting molecules was retained in the metathesis products.