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Synfacts 2016; 12(07): 0751
DOI: 10.1055/s-0035-1562272
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Hydrosilylations Catalyzed by Iron-Doped Metal–Organic Layers

Contributor(s):
Yasuhiro Uozumi
,
Takuma Sato
Cao L, Lin Z, Peng F, Wang W, Huang R, Wang C, * Yan J, Liang J, Zhang Z, Zhang T, Long L, Sun J, * Lin W. * Peking University, Beijing and Xiamen University, P. R. of China; University of Chicago, USA; Stockholm University, Sweden
Self-Supporting Metal-Organic Layers as Single-Site Solid Catalysts.

Angew. Chem. Int. Ed. 2016;
55: 4962-4966
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Publication History

Publication Date:
17 June 2016 (online)

 
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Key words

metal–organic layers - heterogeneous catalysis - hafnium - iron - hydrosilylation - alkenes

Significance

Metal–organic layers (MOLs) composed of [Hf6O4(OH)4(HCO2)6] secondary building units and 4,4′,4′′-benzene-1,3,5-triyltribenzoate (BTB) bridging ligands were prepared. The MOL structures were doped with 4′-(4-carboxylatophenyl)-2,2′:6′,2′′-terpyridine-5,5′′-dicarboxylate (TPY) and FeBr2 to afford the solid material Fe-TPY-MOL, which catalyzed the hydrosilylation of terminal olefins. For example, the reaction of styrene (1) with phenylsilane (2) proceeded in the presence of Fe-TPY-MOL to give the linear silane 3 in quantitative yield.


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Comment

In the reaction of styrene (1) with phenylsilane (2), the Fe-TPY-MOL catalyst showed a better performance than the metal–organic framework-based catalysts Fe-TPY-MOF1 (prepared from an interlocked Hf-MOF instead of the MOLs), Fe-TPY-MOF2 (prepared from a stacked Hf-MOF instead of the MOLs), or the homogeneous counterpart Fe-TPY (prepared from FeBr2, TPY, and NaBHEt3). When Fe-TPY-MOF1, Fe-TPY-MOF2, and Fe-TPY were employed as catalysts for the reaction, the ratios of products 3 and 4 were 0:0, 30:0, and 3:43, respectively.


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