Covalently anchored ruthenium-phosphine complex on mesoporous organosilica: Catalytic applications in hydrogenation reactions

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• 作者：Sheetal Sisodiya^a ; Anish Lazar^a ; Sankaranarayanapillai Shylesh^b ; Lei Wang^b ; Werner R. Thiel^b ; Anand Pal Singh^a ; ^{ap.singh@ncl.res.in}
• 关键词：Triphenyl phosphine ; Ruthenium ; Organosilica ; Heterogenization ; Hydrogenation
• 刊名：Catalysis Communications
• 出版年：2012
• 期刊代码：12_15667367
• 类别：ce
• 出版时间：5 August, 2012
• 卷：25
• 期：Complete
• 页码：22-27
• 文件大小：911 K

摘要

New heterogeneous catalysts for alkene hydrogenation reactions were prepared by the immobilization of trimethoxysilane functionalized triphenylphosphine 畏⁶-p-cymene ruthenium complex on mesoporous organosilica (PMO-Ru). Characterization techniques confirmed the structural integrity of the organosilica material and proved the successful anchoring of ruthenium complex. Catalytic activity and stability of PMO-Ru sample investigated in the hydrogenation of various olefins showed higher activity than a neat and MCM-41 supported ruthenium catalyst. High catalytic activity and stability of organosilica supported ruthenium catalyst are attributed to the hydrophobic environments and to the unique structural features imparted from the presence of organic groups in the framewall positions.