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Tetraamido- (TAML) and tetraaza- (cyclam) metallo-complexes as mild catalysts for the sustainable oxidation of alcohols

Zhan Zhang 1
1 CASYEN - Catalyse Synthèse et Environnement
ICBMS - Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
Abstract : Fe(TAML) complexes have been investigated a lot in recent years. Our group has investigated the simplest Fe(TAML) catalyst for its oxidation with high efficiency. The purpose of this thesis was to functionalize the complex Fe(TAML-Me2) for different uses.One of the functionalizations was to have a hexyl-substituted triazole “tail”, which could influence the physicochemical properties of the iron complex in homogeneous catalysis. Conversely, a silicon tailed-one was designed to be grafted on an inorganic support for a use in heterogeneous catalysis. At last, the purpose of the fluorinated tail was to increase the solubility of the metallocomplex in fluorinated solvents for a potential use in a biphasic mixture that could favor the recyclability of the catalyst. The other purpose of the thesis was to develop an environmental benign catalytic oxidation system with a bioinspired catalyst MnII(Me2EBC)Cl2. We disclosed that the MnII(Me2EBC)Cl2 complex could catalyze the oxidation of a series of benzylic and aliphatic alcohols with H2O2. Conversions of the alcohols to corresponding carbonyl compounds reached 98% with good to excellent selectivity
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Zhan Zhang. Tetraamido- (TAML) and tetraaza- (cyclam) metallo-complexes as mild catalysts for the sustainable oxidation of alcohols. Organic chemistry. Université de Lyon, 2018. English. ⟨NNT : 2018LYSE1312⟩. ⟨tel-02343622⟩

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