期刊
ORGANOMETALLICS
卷 36, 期 1, 页码 192-198出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.organomet.6b00620
关键词
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资金
- Foundation for Science and Technology (FCT) of Portugal [UID/QUI/00100/2013, PTDC/QEQ-ERQ/1648/2014, PTDC/QEQ-QIN/3967/2014]
- FCT
For the first time, microwave (MW) irradiation was successfully applied to peroxidative cyclohexane oxidation catalyzed by a C-scorpionate complex, [FeCl2(Tpm)] (1; Tpm = hydrotris(pyrazol-1-yl)methane), providing a highly selective and fast eco-friendly procedure to produce a KA (cyclohexanol + cyclohexanone) oil mixture (up to ca. 100% selectivity) with 28% yield in 1 h at 50 degrees C in MeCN. Water, organics, and ionic liquids (ILs, [bmim][N(CN)(2)] and [brnim][BF4]) were used as solvents, and their interactions with 1 were determined by DFT calculations. The possibility to recycle and reuse 1 (up to nine consecutive cycles) without loss of activity is also observed for the IL [bmim] [BF4]. Moreover, higher catalytic activities under additive-free conditions are obtained with the ILs in comparison to those with the other solvents. Tuning the alcohol/ketone selectivity is also possible by choosing the appropriate IL solvent.
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