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, sa.1, ss.59-66, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1002/aoc.1353
  • Dergi Adı: APPLIED ORGANOMETALLIC CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.59-66
  • Anahtar Kelimeler: N-heterocyclic carbene, xylylbis(imidazolinium) salts, hydrosilylation, rhodium, RUTHENIUM ALLENYLIDENE COMPLEXES, TRANSITION-METAL-COMPLEXES, MAIN-GROUP ELEMENTS, ASYMMETRIC HYDROSILYLATION, COUPLING REACTIONS, PALLADIUM COMPLEXES, EFFICIENT CATALYSTS, PHENYLBORONIC ACID, IRIDIUM COMPLEXES, ALKENE METATHESIS
  • İnönü Üniversitesi Adresli: Evet

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.