Abstract
THE detergents of the next century will be routinely required to contain bleaching agents that are not only more active than those currently available but also environmentally safe and cost-effective. Hydrogen peroxide, the traditional bleaching agent1, loses its activity as the washing temperature decreases. Peroxyacetic acid maintains acceptable bleaching activity down to 40–60 °C (ref. 2), but still lower temperatures are desirable. It is generally recognized that manganese and iron complexes are less environmentally damaging reagents than other transition-metal compounds, and such complexes have received considerable attention as bleaching catalysts3–11. Here we show that manganese complexes derived from l,4,7-trimethyl-l,4,7-triazacyclononane and related ligand systems act as highly effective catalysts for the bleaching of stains by hydrogen peroxide at low temperatures. These complexes also catalyse the epoxidation of alkenes and the oxidation of poh phenolic substrates by hydrogen peroxide. Our results demonstrate the considerable potential of these systems for clean and efficient low-temperature bleaching.
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References
Engel, K., Ruback, W. & Zimmermann, F. Siefen Ōle Fette Wachse 115, 219–224 (1989).
Becker, G. Tenside Deterg. 13, 16–17 (1976).
Farre, T. L. F. et al., European Patent Application Nos 458,397 (1991) and 458,398 (1991).
Oakes, J., European Patent Application Nos 127,910 (1984) and 145,091 (1985).
Pecoraro, V. L. (ed.) Manganese Redox Enzymes (VCH, New York, 1992).
Dismukes, C. G. in Bioinorganic Catalysis (ed. Reedijk, J.) 317–346 (Dekker, New York, 1993).
Wieghardt, K. Angew. Chem. int. Edn engl. 28, 1153–1172 (1989).
Bossek, U., Saher, M., Weyhermüller, T. & Wieghardt, K. J. chem. Soc., chem. Commun. 1780–1782 (1992).
Larson, E. J. & Pecoraro, V. L. J. Am. chem. Soc. 113, 3810–3818 (1991).
Nam, W. & Valentine, J. S. J. Am. chem. Soc. 115, 1772–1778 (1993).
Guajardo, R. J., Hudson, S. E., Brown, S. J. & Mascharak, P. K., J. Am. chem. Soc. 115, 7971–7977 (1993).
Wieghardt, K. et al. J. Am. chem. Soc. 110, 7398–7411 (1988).
Bossek, U., Weyhermüller, T., Wieghardt, K., Nuber, B. & Weiss, J. J. Am. chem. Soc. 112, 6387–6388 (1990).
Weighardt, K., Pohl, K., Bossek, U., Nuber, B. & Weiss, J. Z. Natuurf. 43b, 1184–1194 (1988).
Belal, A. A. et al., Inorg. Chem. 30, 4397–4402 (1991).
Finger, A., Kuhr, S. & Engelhardt, U. H. J. Chromatogr. 624, 293–315 (1992).
Dismukes, G. C. in Mixed-Valence Systems: Applications in Chemistry, Physics and Biology (ed. Prassides, K.) 137–154 (Kluwer, Dordrecht, 1991).
Weyermüller, T. & Wieghardt, K. J. inorg. Biochem. 43, 371 (1991).
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Hage, R., Iburg, J., Kerschner, J. et al. Efficient manganese catalysts for low-temperature bleaching. Nature 369, 637–639 (1994). https://doi.org/10.1038/369637a0
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DOI: https://doi.org/10.1038/369637a0
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