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Synthesis of novel rhodium-xylyl linked N-heterocyclic carbene complexes

Synthesis of novel rhodium-xylyl linked N-heterocyclic carbene complexes

Başlık: Synthesis of novel rhodium-xylyl linked N-heterocyclic carbene complexes;
as hydrosilylation catalysts
Ozdemir, I; Demir, S; Sahin, O; Buyukgungor, O; Cetinkaya, B
Bağlantı: http://hdl.handle.net/11616/82651
Tarih: 2008

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.
 
C1 [Oezdemir, Ismail; Demir, Serpil] Inonu Univ, Fac Sci & Art, Dept Chem, TR-44280 Malatya, Turkey.
 
[Sahin, Onur; Bueyuekguengoer, Orhan] Ondokuz Mayis Univ, Dept Phys, TR-55139 Samsun, Turkey.
 
[Cetinkaya, Bekir] Ege Univ, Fac Sci, Dept Chem, TR-35100 Izmir, Turkey.
 

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