期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 426, 期 -, 页码 213-222出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2016.11.019
关键词
Corrole; Cobalt; Styrene; Catalytic oxidation
资金
- National Natural Science Foundation of China [21371059, 21671068]
Four cobalt (III) corroles bearing different number of pentafluorophenyl and phenyl groups were synthesized and characterized by elemental analysis, HR-MS, UV-vis, NMR, XPS as well as cyclic voltammetry. The first investigation of cobalt corrole catalyzed oxidation of alkene was conducted by using styrene as substrate. The best yield was obtained in acetonitrile solvent in the air with TBHP oxidant (96% yield based on oxidant, up to 96 TON). Benzaldehyde was detected as the main product by using Phl(OAc)(2), TBHP, KHSO5, Phi as oxidants. In contrast, styrene oxide was found to be the major product when using m-CPBA oxidant. Nearly no products could be found by using H2O2 oxidant. Possible catalytic oxidation pathway was also discussed based on the obsewrvations of UV-vis changes of the ctatalytic system in the absence of substrate and in-situ HR-MS. (C) 2016 Elsevier B.V. All rights reserved.
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