Reactions of a neutral silylene ruthenium complex with heterocumulenes: C=o hydrosilylation of isocyanates vs c=s bond cleavage of isothiocyanate

Mitsuyoshi Ochiai, Hisako Hashimoto, Hiromi Tobita

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30 Citations (Scopus)

Abstract

Reactions of the neutral silylene ruthenium complex Cp*(CO)(H)Ru= Si(H){C(SiMe 3)3} (2) with heterocumulenes were investigated. Treatment of 2 with ArNCO (Ar = Mes, Ph; Mes = 2,4,6-trimethylphenyl) resulted in hydrosilylation of ArNCO selectively at the C=O bond at room temperature to give the five-membered chelate complexes Cp*(CO)Ru[κ2N,Si-N(Ar)=C(H) OSi(H)- {C(SiMe 3)3}] (3a, Ar = Mes; 3b, Ar = Ph). In contrast, the reaction of 2 with MesNCS led to cleavage of the C=S double bond to give the isocyanide complex Cp*(CO)Ru(CNMes){SSiH2C(SiMe 3)3} (4). The structures of both types of products were unambiguously determined by X-ray crystallography.

Original languageEnglish
Pages (from-to)527-530
Number of pages4
JournalOrganometallics
Volume31
Issue number2
DOIs
Publication statusPublished - 2012 Jan 23

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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