Remarkable enhancement of aerobic epoxidation reactivity for olefins catalyzed by μ-oxo-bisiron (III) porphyrins under ambient conditions
XT Zhou, QH Tang, HB Ji
Index: Zhou, Tai; Tang, Qing-Hua; Ji, Hong-Bing Tetrahedron Letters, 2009 , vol. 50, # 47 p. 6601 - 6605
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Citation Number: 42
Abstract
With μ-oxo dimeric iron (III) porphyrins [(FeIIITPP) 2O] as catalyst, isobutylaldehyde as co- reductant, and dioxygen as oxidant, an efficient model system for epoxidation of olefins has been developed. Compared with mono-metalloporphyrins as catalyst, a remarkable enhancement of reactivity was obtained for the present olefin epoxidation system, in which the turnover number (TON) of the catalyst has doubled from about 700 million to 1400 ...
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