85095-78-9Relevant academic research and scientific papers
Efficient and region-selective conversion of octanes to epoxides under ambient conditions: Performance of tri-copper catalyst, [Cu3I(L)]+1 (L=7-N-Etppz)
Nagababu, Penumaka,Paul, Perala Sudheer,Reddy, Thatiparthi Byragi,Krupadam, Reddithota J.
, p. 742 - 745 (2021/09/28)
In this paper, is described the conversion of the octane group of hydrocarbons into industrially important epoxides using tri-copper catalyst, [Cu3I(L)]+1 (L=7-N-Etppz). The role of hydrogen peroxide as a sacrificial oxygen donor during catalytic conversion to epoxides has been investigated. The performance of the catalyst has been evaluated in terms of turnover numbers (TON) and turnover frequencies (TOF) reported in this article.
Molecular Catalysts Capable of Catalyzing Oxidation of Hydrocarbons and Method for Oxidizing Hydrocarbons
-
Paragraph 0208, (2015/04/15)
This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to molecular catalysts for efficient catalytic oxidation of hydrocarbons, such as hydrocarbons from natural gas. The molecular catalytic platform provided herein is capable of the facile oxidation of hydrocarbons, for example, under ambient conditions such as near room temperature and atmospheric pressure.
Efficient oxidation of methane to methanol by dioxygen mediated by tricopper clusters
Chan, Sunney I.,Lu, Yu-Jhang,Nagababu, Penumaka,Maji, Suman,Hung, Mu-Cheng,Lee, Marianne M.,Hsu, I-Jui,Minh, Pham Dinh,Lai, Jeff C.-H.,Ng, Kok Yoah,Ramalingam, Sridevi,Yu, Steve S.-F.,Chan, Michael K.
supporting information, p. 3731 - 3735 (2013/05/21)
TONs of copper fun: There is considerable interest in developing catalysts to harness the abundant natural supply of methane for various industrial applications. Two tricopper complexes capable of mediating efficient oxidation of methane to methanol under ambient conditions were tested: a biomimetic tricopper complex (see figure) and a tricopper-peptide species derived from the particulate methane monooxygenase (pMMO) protein. Copyright
Efficient room-temperature oxidation of hydrocarbons mediated by tricopper cluster complexes with different ligands
Nagababu, Penumaka,Maji, Suman,Kumar, Manyam Praveen,Chen, Peter P.-Y.,Yu, Steve S.-F.,Chan, Sunney I.
supporting information, p. 3275 - 3282 (2013/01/15)
Six tricopper cluster complexes of the type [CuICu ICuI(L)]1+ supported by a series of multidentate ligands (L) have been developed as oxidation catalysts. These complexes are capable of mediating the facile oxygen-atom transfer to hydrocarbon substrates like cyclohexane, benzene, and styrene (C 6H12, C6H6 and C8H 8) upon activation by hydrogen peroxide at room temperature. The processes are catalytic with high turnover frequencies (TOF), efficiently oxidizing the substrates to their corresponding alcohols, aldehydes, and ketones in moderate to high yields. The catalysts are robust with turnover numbers (TON) limited only by the availability of hydrogen peroxide used to drive the catalytic turnover. The TON is independent of the substrate concentration and the TOF depends linearly on the hydrogen peroxide concentration when the oxidation of the substrate mediated by the activated tricopper complex is rapid. At low substrate concentrations, the catalytic system exhibits abortive cycling resulting from competing reduction of the activated catalyst by hydrogen peroxide. This behaviour of the system is consistent with activation of the tricopper complex by hydrogen peroxide to generate a strong oxidizing intermediate capable of a facile direct "oxygen-atom" transfer to the substrate upon formation of a transient complex between the activated catalyst and the substrate. Some substrate specificity has also been noted by varying the ligand design. These properties of the tricopper catalyst are characteristic of many enzyme systems, such as cytochrome P450, which participate in biological oxidations. Copyright
