Valorisation of vegetable oils via metathesis reactions on solid catalysts: Cross-metathesis of methyl oleate with 1-hexene

ZELIN, JUAN; NIERES, PABLO D.; TRASARTI, ANDRÉS F.; APESTEGUÍA, CARLOS R.

APPLIED CATALYSIS A-GENERAL

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2015 vol. 502 p. 410 - 417

0926-860X

The activity and selectivity of silica-supported Hoveyda-Grubbs (HG) complex for the cross-metathesis of methyl oleate with 1-hexene to obtain 1-decene, methyl 9-tetradecenoate, 5-tetradecene and methyl 9-decenoate were studied in a batch reactor. The HG complex loading was varied between 0.87 and 11.6 wt%. Competitive secondary reactions were the self-metathesis of methyl oleate and the self-metathesis of 1-hexene. The yield to cross-metathesis products (η􀭇􀬿􀭑) was 47% when a 1-hexene/methyl oleate reactant ratio (RC6/MO) of one was employed. The ηC-M value increased with increasing 1-hexene initial concentration, reaching 87% for RC6/MO= 7. The selectivity to terminal olefins also increased at the expense of internal olefins among the cross-metathesis products when the concentration of 1-hexene was increased.