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Synthesis of novel rhodium‐xylyl linked N ‐heterocyclic carbene complexes as hydrosilylation catalysts
Author(s) -
Özdemir Ismail,
Demir Serpil,
Şahin Onur,
Büyükgüngör Orhan,
Çetinkaya Bekir
Publication year - 2008
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.1353
Subject(s) - chemistry , carbene , hydrosilylation , rhodium , triethylsilane , acetophenone , catalysis , cyclooctadiene , medicinal chemistry , nuclear magnetic resonance spectroscopy , stereochemistry , organic chemistry
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 KOBu t and [RhCl(COD)] 2 yields ortho ‐ and para ‐xylylbis{( N ‐alkylimidazolidin‐2‐ylidene)chloro(η 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 © 2008 John Wiley & Sons, Ltd.