Recently reported thiolate-coordinated ruthenium alkylidene complexes show promise in Z-selective and stereoretentive olefin metathesis reactions. Herein we describe the immobilization of three Ru complexes containing a bulky aryl thiolate on mesostructured silica via surface organometallic chemistry. The applied methodology gives isolated catalytic sites homogeneously distributed on the silica surface. The catalytic results with two model substrates show comparable Z-selectivities to those of the homogeneous counterparts.

中文翻译：

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二氧化硅负载的Z选择性Ru烯烃复分解催化剂

最近报道的硫醇盐配位的钌亚烷基络合物在Z-选择性和立体保持性烯烃复分解反应中显示出希望。在本文中，我们描述了通过表面有机金属化学将三种含有大体积硫代芳基硫醇盐的Ru络合物固定在介孔结构的二氧化硅上。所应用的方法给出了隔离的催化位点，其均匀地分布在二氧化硅表面上。用两种模型底物的催化结果显示出与均相对应物相当的Z选择性。