C,N-chelated organotin(IV) trifluoromethanesulfonates: Synthesis, characterization and preliminary studies of its catalytic activity in the direct synthesis of dimethyl carbonate from methanol and CO2
| Autor: | Petr Švec, Laurent Plasseraud, Aleš Růžička, Zdeňka Padělková, Roman Olejník |
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| Rok vydání: | 2012 |
| Předmět: |
Ligand
Organic Chemistry Nuclear magnetic resonance spectroscopy Biochemistry Medicinal chemistry Catalysis Inorganic Chemistry chemistry.chemical_compound Hydrolysis chemistry Materials Chemistry Organic chemistry Silver trifluoromethanesulfonate Methanol Physical and Theoretical Chemistry Dimethyl carbonate Trifluoromethanesulfonate |
| Zdroj: | Journal of Organometallic Chemistry. :82-87 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2012.02.022 |
| Popis: | C,N-chelated tri- and diorganotin(IV) halides react with 1 or 2 mol equiv of silver trifluoromethanesulfonate (triflate, AgOTf, OTf = OSO2CF3−) to give corresponding C,N-chelated organotin(IV) triflates. The triorganotin(IV) triflates of general formula LCNR2SnOTf (R = n-Bu (1), Ph (2)) are presumably more stable towards hydrolysis than the diorganotin(IV) triflates LCNRSn(OTf)2 (R = n-Bu (3), Ph (4)). All prepared organotin(IV) triflates bearing the LCN ligand (where LCN is 2-(N,N-dimethylaminomethyl)phenyl-) were characterized by multinuclear NMR spectroscopy and elemental analysis. In addition, the structure of 3 was determined by the X-ray diffraction analysis. The catalytic activity of 1, 2 and 3 in the direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol was investigated showing promising yield of DMC in the case of reaction promoted by 1. |
| Databáze: | OpenAIRE |
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