Hydroxylation of cyclohexane catalyzed by iron(III)—metal-free porphyrin dimer with molecular oxygen: The effect of the steric hindrance and the intramolecular interaction between the two prophyrin rings

✍ Scribed by Jin-Wang Huang; Zhan-Liang Liu; Xiu-Rui Gao; Dian Yang; Xin-Yu Peng; Liang-Nian Ji

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 501 KB
• Volume: 111
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/1381-1169(96)00202-6

✦ Synopsis

Three iron(III)-metal-free porphyrin dimers linked covalently with a flexible butoxy chain at the paru position of the two phenyl rings have been prepared and characterized. The hydroxylation of cyclohexane catalyzed by these dimers with molecular oxygen under mild condition has been studied preliminarily. The results indicate that the dimers have higher catalytic activity than the corresponding mono-porphyrinatoiron(III), which is related to the steric hindrance caused by the closed conformation of the dimers and the intramolecular interaction between two porphyrin rings.