Journal
DALTON TRANSACTIONS
Volume -, Issue 42, Pages 9207-9215Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b911990f
Keywords
-
Categories
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT), Portugal
- PPCDT (FEDER funded) [SFRH/BD/48087/2008]
Ask authors/readers for more resources
Reactions between CuCl2 and the functionalized scorpionate 2,2,2-tris(1-pyrazolyl)ethanol HOCH2C(pz)(3) 1 (pz = pyrazolyl) or 2,2,2-tris(1-pyrazolyl)ethyl methanesulfonate CH3SO2OCH2C(pz)(3) 2 yield the corresponding water soluble Cu-II complexes [CuCl2{HOCH2C(pz)(3)}](3) or [CuCl2{CH3SO2OCH2C(pz)(3)}](2) 4. In 3 the scorpionate ligand shows the typical N,N,N-coordination mode, whereas in the dinuclear complex 4 it binds the metal as a bidentate species. Compounds 1-4 have been characterized by IR, far-IR, elemental analysis and (for 2-4) single crystal X-ray diffraction. The new scorpionate complexes 3 and 4 are shown to act as catalyst precursors for the peroxidative oxidation of cyclohexane to cyclohexanol (main product) and cyclohexanone, under mild conditions (at room temperature and using an aqueous solution of H2O2) reaching TON values up to 186 in NCMe/H2O. Their hydrosolubility allows them to operate also in pure aqueous media (without any organic solvent, although less effectively), a rare feature of significance towards a green alkane oxidation process.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available