Synthesis of novel rhodium-xylyl linked N-heterocyclic carbene complexes as hydrosilylation catalysts


Oezdemir I. , DEMIR S., Sahin O., Bueyuekguengoer O., Cetinkaya B.

APPLIED ORGANOMETALLIC CHEMISTRY, cilt.22, ss.59-66, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 22 Konu: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1002/aoc.1353
  • Dergi Adı: APPLIED ORGANOMETALLIC CHEMISTRY
  • Sayfa Sayıları: ss.59-66

Özet

Reaction of ortho-xylylbis(N-2,4,6-trimethylbenzylimidazolinium);xylylbis(N-butylimidazolinium) and para-xylylbis(N-2,4,6-trimethylbenzylimidazolinium); xylylbis(N-butylimidazolinium) salts with KOBut and [RhCl(COD)](2) yields ortho- and para-xylylbis{(N-alkylimidazolidin-2-ylidene)chloro(eta(4)-1,5-cyclooctadiene) rho dium(I)} complexes (2a-d). All compounds synthesized were characterized by elemental analysis and NMR spectroscopy, and the molecular structures of the 2a and 2d were determined by X-ray crystallography. Triethylsilane reacts with acetophenone derivatives in the presence of catalytic amount of the new rhodium(I)-carbene complexes (2a-d), to give the corresponding silylethers in good yields (83-99%). Copyright (C) 2008 John Wiley & Sons, Ltd.