Asymmetric Epoxidations with H2O2 on Fe and Mn Aminopyridine Catalysts: Probing the Nature of Active Species by Combined EPR Spectroscopic and Enantioselectivity Study Научная публикация
| Журнал |
ACS Catalysis
ISSN: 2155-5435 |
||||
|---|---|---|---|---|---|
| Вых. Данные | Год: 2012, Том: 2, Страницы: 1196-1202 Страниц : 7 DOI: 10.1021/cs300205n | ||||
| Ключевые слова | asymmetric catalysis, epoxidation, hydrogen peroxide, intermediate, iron, manganese | ||||
| Авторы |
|
||||
| Организации |
|
Информация о финансировании (2)
| 1 | Российский фонд фундаментальных исследований | 12-03-00782 |
| 2 | Российский фонд фундаментальных исследований | 09-03-00087 |
Реферат:
Chiral bipyrrolidine based iron and manganese complexes [((S,S)-pdp)MII(OTf)2] catalyze the asymmetric
epoxidation of various olefins with H2O2 in the presence of carboxylic acid additives with high efficiency (up to 1000 turnover number (TON)) and selectivity (up to 100%), and with good to high enantioselectivity (up to 93% enantiomeric excess (ee)). The enantioselectivity increases with growing steric demand of the acid. On the basis of the electron paramagnetic resonance (EPR) spectroscopy and enantioselectivity studies, the active oxygen-transferring species of the above systems can be identified as structurally similar oxometal(V) species of the type [((S,S)-pdp)MVO(OCOR)]2+ (M = Fe, Mn; R = alkyl).
Библиографическая ссылка:
Lyakin O.Y.
, Ottenbaсher R.V.
, Bryliakov K.P.
, Talsi E.P.
Asymmetric Epoxidations with H2O2 on Fe and Mn Aminopyridine Catalysts: Probing the Nature of Active Species by Combined EPR Spectroscopic and Enantioselectivity Study
ACS Catalysis. 2012. V.2. P.1196-1202. DOI: 10.1021/cs300205n WOS Scopus РИНЦ CAPlusCA OpenAlex
Asymmetric Epoxidations with H2O2 on Fe and Mn Aminopyridine Catalysts: Probing the Nature of Active Species by Combined EPR Spectroscopic and Enantioselectivity Study
ACS Catalysis. 2012. V.2. P.1196-1202. DOI: 10.1021/cs300205n WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 27 мар. 2012 г. |
| Принята к публикации: | 4 мая 2012 г. |
| Опубликована online: | 16 мая 2012 г. |
| Опубликована в печати: | 1 июн. 2012 г. |
Идентификаторы БД:
| Web of science: | WOS:000304682600033 |
| Scopus: | 2-s2.0-84861824747 |
| РИНЦ: | 17987828 |
| Chemical Abstracts: | 2012:662265 |
| Chemical Abstracts (print): | 157:44604 |
| OpenAlex: | W2039499832 |