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20.5.1.7.12.4 Method 4: Metathesis with Rhenium-Based Catalysts

DOI: 10.1055/sos-SD-020-00774

Zhang, M.; Hanson, P. R.Science of Synthesis, (200720925.

The first generation of well-defined rhenium-based heterogeneous catalysts for metathesis is silica-supported dineopentyl(neopentylidene)(neopentylidyne)rhenium(VII) (238) (Scheme 80).[‌338‌] This system is highly active for terminal and internal alkenes. It also catalyzes the self-metathesis of methyl oleate (237), giving diester 239, without the need for co-catalysts. Cross-metathesis reaction of methyl oleate with (E)-dec-5-ene catalyzed by rhenium complex 238 provides the cross-metathesis product ester 240 in 80% conversion (at thermodynamic equilibrium) and 80% selectivity.

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