Ruthenium carbene mediated metathesis of oleate-type fatty compounds
Date
2008Author
Marvey, Bassie B.
Segakweng, Constance K.
Vosloo, Hermanus C.M.
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The complexes RuCl2(PCy3)2(=CHPh), 1, and RuCl2(PCy3)(H2IMes)(=CHPh),
2, proved to be active catalysts for the self-metathesis of oleate-type fatty compounds
containing the ester, hydroxyl, epoxy and carboxylic acid functional groups. At elevated
reaction temperatures 2 showed a higher activity, stability and lower selectivity for primary
metathesis products compared to 1. A profound influence of organic functional groups on
catalyst activity and selectivity was found and from relative activities and selectivities 2
has proved to be more resistant to deactivation by polar functional groups and more
inclined to promote double bond isomerisation than 1. The observed catalyst deactivation
by oxygen-containing functional groups could be attributed to a phosphine displacement
side reaction
URI
http://hdl.handle.net/10394/2849http://www.mdpi.com/1422-0067/9/4/615/pdf
https://doi.org/10.3390/ijms9040615