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Synthesis and catalytic properties of a novel phthalocyanine covalently grafted onto silica
Journal of Porphyrins and Phthalocyanines ( IF 1.5 ) Pub Date : 2005-01-26 , DOI: 10.1002/jpp.379
S. MANGEMATIN 1 , A. B. SOROKIN 1
Affiliation  

The iron complex of 2(3),9(10),16(17),23(24)-tetra[1,5-di(3-triethoxysilyl-propyl)biuryl]phthalocyanine (1) was prepared by reacting iron tetraaminophthalocyanine with 3-(triethoxysilyl)propyl isocyanate. This complex was directly grafted onto silica to give a supported catalyst without preliminary modification of silica support. This supported catalyst was successfully applied in clean catalytic oxidations by using molecular oxygen in combination with isobutyraldehyde. Cyclooctene, cyclohexene and styrene were oxidized to corresponding epoxides with 90, 78 and 74% yields, respectively. 2,3,6-Trimethylphenol was selectively oxidized to 2,2',3,3',5,5'-hexamethyl-4,4'-biphenol.

中文翻译:

二氧化硅共价接枝新型酞菁的合成及催化性能

由四氨基酞菁铁反应制备2(3),9(10),16(17),23(24)-四[1,5-二(3-三乙氧基甲硅烷基-丙基)联苯脲]酞菁(1)的铁络合物与 3-(三乙氧基甲硅烷基)丙基异氰酸酯。将该配合物直接接枝到二氧化硅上得到负载型催化剂,而无需对二氧化硅载体进行初步改性。这种负载型催化剂通过使用分子氧与异丁醛的结合成功地应用于清洁催化氧化。环辛烯、环己烯和苯乙烯被氧化成相应的环氧化物,产率分别为 90%、78% 和 74%。2,3,6-三甲基苯酚被选择性氧化为 2,2',3,3',5,5'-hexamethyl-4,4'-biphenol。
更新日期:2005-01-26
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