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An Organotin Vanadate with Sodalite Topology and Catalytic Versatility in Oxidative Transformations
ChemCatChem ( IF 3.8 ) Pub Date : 2018-07-04 , DOI: 10.1002/cctc.201800477
Ana C. Gomes 1 , Margarida M. Antunes 1 , Marta Abrantes 2, 3 , Anabela A. Valente 1 , Filipe A. Almeida Paz 1 , Isabel S. Gonçalves 1 , Martyn Pillinger 1
Affiliation  

The new coordination polymer formulated as [Et3SnVO3] (1) has been synthesized and shown by a combined single‐crystal and synchrotron powder X‐ray diffraction structural analysis, supported by solid‐state NMR, to possess a three‐dimensional network structure with the sodalite topology, formed by tetravanadate polyanions, [V4O12]4−, that are linked by Et3Sn+ spacers. The catalytic versatility of compound 1 for liquid phase organic reactions was demonstrated by applying it for the epoxidation of olefins, the oxidative dehydrogenation of alcohols, and the oxidation of benzyl alcohol to benzaldehyde and benzoic acid, using tert‐butyl hydroperoxide (TBHP) as oxidant. Compound 1 acts a solid reservoir for soluble, catalytically active species, which promote high selectivities to the epoxide and carbonyl (aldehyde/ketone/acid) products. The epoxidation activity compares favorably with those reported for other organotin molybdate, tungstate and vanadate coordination polymers, and is superior to that displayed by the starting materials used for its synthesis (Et3SnBr and NH4VO3) and the metavanadate NBu4VO3.

中文翻译:

具有方钠石拓扑和催化多功能性在氧化转化中的有机锡钒酸盐。

合成并配制成[Et 3 SnVO 3 ](1)的新型配位聚合物,并通过固态NMR进行的单晶粉末和同步加速器粉末X射线衍射结构分析的组合显示,具有三维网络由四钒酸盐聚阴离子[V 4 O 12 ] 4−形成的方钠石拓扑结构,通过Et 3 Sn +间隔基连接。化合物1的催化多功能性通过使用丁基氢过氧化物(TBHP)作为氧化剂,将其用于烯烃的环氧化,醇的氧化脱氢以及将苄醇氧化为苯甲醛和苯甲酸,证明了其可用于液相有机反应。化合物1充当可溶性催化活性物质的固体储存库,可促进对环氧化物和羰基(醛/酮/酸)产物的高选择性。与其他有机锡钼酸盐,钨酸盐和钒酸盐配位聚合物相比,其环氧化活性优越,并且优于其合成所用的原材料(Et 3 SnBr和NH 4 VO 3)和偏钒酸盐NBu 4所显示的环氧化活性。VO 3
更新日期:2018-07-04
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