Oxidation of organic compounds with nanostructured iodosylbenzenecatalyzed by manganese porphyrins

The manganese complex of the sulfonated derivatives of meso-tetrakis(۴-methoxyphenyl)porphyrin,H۲T(۴-OCH۳)PP, meso-tetrakis(۲-chlorophenyl)porphyrin, H۲T(۲-Cl)PPS۴ also a porpyrin with cationicsubstituents at the meso positions, meso-tetrakis(۴-methylpyridyl)porphyrin, H۲TMPy, were used ascatalysts in biomimetic oxidation of olefins with bulk and nano-structured iodosylbenzene underhomogeneous conditions. The nanostructured oxidatnt, PhIO-TEG was synthesized by controledalkaline hydrolysis of iodobenzene diacetate in the presence of triethylene glycol monomethyl ether(TEG) [۱]. The product distribution as well as the conversion yields were found to be significantlyinfuenced by changing the oxidant from bulk to nano-structured PhIO. It is noteworthy that due to thevery low solubility of most hypervalent iodine compounds, many efforts were devoted to the synthesisof more soluble and reactive I(III) and I(V) derivatives [۲-۴].

کلیدواژه ها:

Iodylbenzene-triethylene glycol monomethyl ether nanocomposite ، Oxidation oforganic compounds ، Manganese porphyrins ، Hypervalent iodine compounds