[(NHC)(NHCewg) RuCl2 (CHPh)] Complexes with Modified NHCewg Ligands for Efficient Ring??Closing Metathesis Leading to Tetrasubstituted Olefins

V Sashuk, LH Peeck, H Plenio

Index: Sashuk, Volodymyr; Peeck, Lars H.; Plenio, Herbert Chemistry - A European Journal, 2010 , vol. 16, # 13 p. 3983 - 3993

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Citation Number: 88

Abstract

Abstract Imidazolium salts (NHC ewg⋅ HCl) with electronically variable substituents in the 4, 5-position (H, H or Cl, Cl or H, NO 2 or CN, CN) and sterically variable substituents in the 1, 3-position (Me, Me or Et, Et or iPr, iPr or Me, iPr) were synthesized and converted into the respective [AgI (NHC) ewg] complexes. The reactions of [(NHC) RuCl 2 (CHPh)(py) 2] with the [AgI (NHC ewg)] complexes provide the respective [(NHC)(NHC ewg) RuCl 2 (CHPh)] ...

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