Self-metathesis of methyl oleate on silica-supported Hoveyda-Grubbs catalysts

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• 作者：Juan Zelin ; Andr¨¦s F. Trasarti ; Carlos R. Apestegu¨ªa
• 关键词：Methyl oleate ; 9-Octadecene-1 ; 18-dioate ; Metathesis reactions ; Hoveyda&ndash ; Grubbs catalysis ; Oleochemistry
• 刊名：Catalysis Communications
• 出版年：2013
• 出版时间：5 December, 2013
• 年：2013
• 卷：42
• 期：Complete
• 页码：84-88
• 全文大小：502 K

文摘

The self-metathesis of methyl oleate (MO) to yield 9-octadecene and 9-octadecene-1,18-dioate (9-OD) was studied in liquid-phase on silica-supported Hoveyda-Grubbs complex catalysts (HG/SiO₂) containing 0.43-6.0 wt. % HG. The reaction was carried out in a batch reactor at 303-343 K and 101.3 kPa, using cyclohexane as solvent. HG/SiO₂ catalysts were active and highly selective for the MO metathesis reaction; equilibrium values of MO conversion and 9-OD yield were reached in 80 min. No catalyst leaching took place in cyclohexane. Catalysts containing HG > 0.87 wt. % showed no significant deactivation after two consecutive catalytic tests.