Silica and zirconia supported olefin metathesis pre-catalysts: Synthesis, catalytic activity and multiple-use in dimethyl carbonate

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• 作者：Adel Keraani^a ; ^d ; Cé ; dric Fischmeister^b ; ^d ; ^{cedric.fischmeister@univ-rennes1.fr} ; Thierry Renouard^a ; ^d ; Marie Le Floch^c ; ^d ; Amandine Baudry^a ; ^b ; ^d ; Christian Bruneau^b ; ^d ; Murielle Rabiller-Baudry^a ; ^d ; ^{murielle.rabiller-baudry@univ-rennes1.fr}
• 关键词：Catalyst multiple-use ; Supported Hoveyda catalyst ; Olefin metathesis ; Ruthenium ; Greener solvent
• 刊名：Journal of Molecular Catalysis A ; Chemical
• 出版年：2012
• 期刊代码：57_13811169
• 类别：ch
• 出版时间：May, 2012
• 卷：357
• 期：Complete
• 页码：73-80
• 文件大小：621 K

摘要

This study is aimed at designing and synthesising new olefin metathesis catalysts grafted onto porous solid supports and using them in dimethyl carbonate (DMC) an eco-friendly solvent. Two hybrid organic-inorganic Hoveyda-type catalysts were prepared in a few steps by initial grafting of a tailor-made ligand by sol-gel process onto porous silica and zirconia. The new hybrid organic-inorganic catalysts were then engaged in a series of model ring closing metathesis reactions (RCM) in the eco-friendly solvent DMC and their multiple-use was studied.