Nonheme Iron(II) Complexes of Macrocyclic Ligands in the Generation of Oxoiron(IV) Complexes and the Catalytic Epoxidation of Olefins
| العنوان: | Nonheme Iron(II) Complexes of Macrocyclic Ligands in the Generation of Oxoiron(IV) Complexes and the Catalytic Epoxidation of Olefins |
|---|---|
| المؤلفون: | Youn Sang Kim, Wonwoo Nam, Takehiko Tosha, Mi Sook Seo, Teizo Kitagawa, Jinheung Kim, Yumi Suh, Kwan Mook Kim, Ho G. Jang |
| المصدر: | ChemInform. 37 |
| بيانات النشر: | Wiley, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Macrocyclic Compounds, Iron, Resonance Raman spectroscopy, Epoxide, Alkenes, Crystallography, X-Ray, Ligands, Photochemistry, Biochemistry, Catalysis, law.invention, Adduct, Inorganic Chemistry, chemistry.chemical_compound, law, Polymer chemistry, Ferrous Compounds, Electron paramagnetic resonance, Olefin fiber, Iodobenzenes, Ligand, General Medicine, Oxygen, chemistry, Selectivity |
| الوصف: | Mononuclear nonheme oxoiron(IV) complexes bearing 15-membered macrocyclic ligands were generated from the reactions of their corresponding iron(II) complexes and iodosylbenzene (PhIO) in CH 3 CN. The oxoiron(IV) species were characterized with various spectroscopic techniques such as UV–vis spectrophotometer, electron paramagnetic resonance, electrospray ionization mass spectrometer, and resonance Raman spectroscopy. The oxoiron(IV) complexes were inactive in olefin epoxidation. In contrast, when iron(II) or oxoiron(IV) complexes were combined with PhIO in the presence of olefins, high yields of epoxide products were obtained. These results indicate that in addition to the oxoiron(IV) species, there must be at least one more active oxidant (e.g., Fe IV -OIPh adduct or oxoiron(V) species) that effects the olefin epoxidation. We have also demonstrated that the ligand environment of iron catalysts is an important factor in controlling the catalytic activity as well as the product selectivity in the epoxidation of olefins by PhIO. |
| تدمد: | 1522-2667 0931-7597 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74e0c9cd0ce4a9f955435a2613dff352 https://doi.org/10.1002/chin.200637212 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....74e0c9cd0ce4a9f955435a2613dff352 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15222667 09317597 |
|---|