Enhanced catalytic activity of MCM-41-grafted aluminium isopropoxide in MPV reductions

(Note: The full text of this document is currently only available in the PDF Version )

R. Anwander, G. Gerstberger, C. Palm, O. Groeger and G. Engelhardt


Abstract

Aluminium alkoxide moieties are grafted onto purely siliceous mesoporous MCM-41 via siloxide linkages, producing materials which reveal enhanced catalytic activity in the MPV reduction of cyclic ketones; nitrogen physisorption and 27Al MAS NMR spectroscopy are applied to characterise the catalytically active hybrid systems.


References

  1. A. L. Wilds, Org. React., 1994, 2, 178.
  2. C. F. de Graauw, J. A. Peters, H. van Bekkum and J. Huskens, Synthesis, 1994, 10, 1007 CrossRef.
  3. See for recent examples: K. Nishide, Y. Shigeta, K. Obata and M. Node, J. Am. Chem. Soc., 1996, 118, 13 103 Search PubMed; M. Fujita, Y. Takarada, T. Sugimura and A. Tai, Chem. Commun., 1997, 1631 CrossRef CAS.
  4. E. J. Creyghton, S. D. Ganeshie, R. S. Downing and H. van Bekkum, J. Mol. Catal. A, 1997, 115, 457 CrossRef CAS and references therein.
  5. P. Leyrit, C. McGill, F. Quignard and A. Choplin, J. Mol. Catal. A, 1996, 112, 395 CrossRef CAS.
  6. R. Anwander, O. Runte, J. Eppinger, G. Gerstberger, E. Herdtweck and M. Spiegler, J. Chem. Soc., Dalton Trans., 1998, 847 RSC.
  7. S. O'Brien, J. Tudor, S. Barlow, M. J. Drewitt, S. J. Heyes and D. O'Hare, Chem. Commun., 1997, 641 RSC and references therein.
  8. J. S. Beck, J. C. Vartuli, W. J. Roth, M. E. Leonowicz, C. T. Kresge, K. D. Schmitt, C. T.-W. Chu, D. H. Olson, E. W. Sheppard, S. B. McCullen, J. B. Higgins and J. L. Schlenker, J. Am. Chem. Soc., 1992, 114, 10 834 CrossRef CAS.
  9. R. Mokaya and W. Jones, Chem. Commun., 1997, 2185 RSC.
  10. L. Horner and U. B. Kaps, Liebigs Ann. Chem., 1980, 192 Search PubMed.
  11. J. W. Akitt and R. H. Duncan, J. Magn. Reson., 1974, 15, 162 CAS.
  12. G. Engelhardt and D. Michel, High resolution solid-state NMR of silicates and zeolites, Wiley, New York, 1987 Search PubMed.
  13. V. J. Shiner, Jr. and D. Whittaker, J. Am. Chem. Soc., 1969, 91, 394 CrossRef.
  14. R. Anwander, C. Palm, O. Groeger and G. Engelhardt, Organometallics, 1998, 17, 2027 CrossRef CAS.
  15. T. Tatsumi, K. A. Koyano and N. Igarashi, Chem. Commun., 1998, 325 RSC.
Click here to see how this site uses Cookies. View our privacy policy here.