METATHESIS METHOD FOR UNSATURATED FATTY ACID ESTERS OR UNSATURATED FATTY ACIDS WITH LOWER OLEFINS AND HETEROGENEOUS CATALYST COMPOSITION DESIGNED FOR METATHESIS METHOD Russian patent published in 2006 - IPC C07C67/347 C07C69/533 B01J31/22 

FIELD: industrial organic synthesis.

SUBSTANCE: invention relates to olefin metathesis method and comprises contacting C₈-C₂₅-unsaturated fatty acid ester or C₈-C₂₅-unsaturated fatty acid, such as methyl oleate or oleic acid, with lower olefin, preferably ethylene, in presence of metathesis catalyst to give olefin product and the same with functional ester group of functional acid group. Preferable metathesis products are 1-decene and/or methyl 9-decenoate or 9-decenoic acid, respectively. Catalyst contains organometallic complex including ruthenium or osmium atom and chelating ligand having carbenic group and electron-donor group of element selected from group VA or group VIA of Periodic table, wherein carbenic group and electron-donor group are both linked to ruthenium or osmium atom. Invention also discloses heterogeneous catalyst composition designed for metathesis method, which comprises organometallic complex and catalyst carrier. Catalyst can further be optionally supported by cross-linked polymer resin. In this latter case, organometallic complex is bound to indicated support through benzyl linkage.

EFFECT: enabled production of valuable α-olefins, increased yield of product, reduced consumption of starting materials and increased productivity of process, facilitated separation of catalyst from reaction mixture.

21 cl, 2 tbl, 4 ex