کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1316944 | 976494 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Catechol oxidase and phenoxazinone synthase activity of a manganese(II) isoindoline complex Catechol oxidase and phenoxazinone synthase activity of a manganese(II) isoindoline complex](/preview/png/1316944.png)
The mononuclear [Mn(6′Me2indH)(H2O)2(CH3CN)](ClO4)2 (6′Me2indH: 1,3-bis(6′-methyl-2′-pyridylimino)isoindoline) complex has been prepared and characterized by various techniques such as elemental analysis, IR, UV–visible and ESR spectroscopy. The title compound was suitable as catalyst for the catalytic oxidation of 3,5-di-tert-butylcatechol (3,5-DTBCH2) to 3,5-di-tert-butyl-1,2-benzoquinone (3,5-DTBQ) (catecholase activity), and o-aminophenol (OAPH) to 2-aminophenoxazine-3-one (APX) (phenoxazinone synthase activity) with dioxygen at ambient condition in good yields. Kinetic measurements revealed first-order dependence on the catalyst and dioxygen concentration and saturation type behavior with respect to the corresponding substrate. It was also found that the added triethylamine in both systems accelerates the reaction.
Journal: Journal of Inorganic Biochemistry - Volume 102, Issue 4, April 2008, Pages 773–780