Synthesis and Catalytic Properties of Novel Manganese (III)-oxazine Complex in Oxidation of Sulfides and Alcohols

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Mohammadlou, Ali Akbar | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44092 (03)
University: Sharif University of Technology
Department: Chemistry Scienece
Advisor(s): Bagherzadeh, Mojtaba
Abstract:
In this study new manganese(III) complexes of phox [Mn(phox)2(MeOH)2](ClO4), (phox= 2-(2` hydroxyphenyl)-5,6-dihydro-1,3-oxazine) have been synthesized and characterized with CHN,NMR and IR.The six-membered bidentate (N,O) oxazine ligand have been widely used throughout organometallic and inorganic chemistry, and are particularly important in homogeneous catalysis. The presence of N and O donor sites in oxazines may modify signiﬁcantly the ligand roles for the variation of steric and electronic properties. Therefore, such systems are worth exploring for new catalytic uses . Catalytic oxidation reactions provide excellent alternatives for the use of stoichiometric reagents like urea hydrogen peroxide (UHP) as oxidant and imidazole as co-catalyst. The highest oxide yield (81%) was achieved for methyl phenyl sulfide in 2h and (90%) selectivity.This catalyst were used for alcohol oxidation in presence of oxone as oxidant,the highst oxide yield (100%)was achieved for 2-nitro benzyl alcohol in 15 min and (100%) selectivity.
Keywords:
Manganese ; Oxazine ; Oxidation ; Sulfide ; Alcohol

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