om8011079_si_001.cif (162.82 kB)

Remarkable Effect of Halogens on Catalytic Activities of Thiolato-Bridged Diruthenium Complexes in Propargylic Substitution Reactions

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posted on 23.02.2009, 00:00 by Yoshiaki Tanabe, Keiichiro Kanao, Yoshihiro Miyake, Yoshiaki Nishibayashi
Thiolato-bridged dibromo- and diiododiruthenium complexes [{Cp*RuX(μ-SR)}2] (X = Br, I; R = Me, iPr) have been prepared and characterized by X-ray analysis. Examination of their catalytic activity in propargylic substitution reactions of 1-phenyl-2-propyn-1-ol with some nucleophiles has revealed that the complexes [{Cp*RuX(μ-SiPr)}2] (X = Br, I) work as catalysts but less effectively in comparison with the well-investigated dichloride analogue [{Cp*RuCl(μ-SiPr)}2].