Elevance Renewable Sciences uses Ru-catalyzed olefin metathesis in a biorefinery process to produce high performance, cost-advantaged olefin and novel unsaturated ester products from renewable oils. Depending upon the natural oil employed, the biorefinery products include 1,4-dienes. The development of Mo/W-catalyzed, terminal-olefin selective self-metathesis reactions for the conversion of 1,4-diene biorefinery products to dimeric polyene materials will be presented (reaction A, where R = alkyl or alkyl ester). These transformations are possible due to the higher reactivity of the Mo and W catalysts with terminal olefins than with internal olefins. The catalyst features that promote high terminal olefin selectivity in these reactions will be discussed.

Terminal olefin-selective self-metathesis of 1,4-dienes using homogeneous Mo and W catalysts

249th National Meeting (2015)

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