252571-12-3Relevant academic research and scientific papers
Synthesis and reactivity of ruthenium allyl carbene complexes. C-H activation/dehydrogenation of a cyclohexyl substituent in PCy3
Mauthner, Klaus,Soldouzi, Kamran M.,Mereiter, Kurt,Schmid, Roland,Kirchner, Karl
, p. 4681 - 4683 (1999)
The complexes [RuCp(PR3)(CH3CN)2]PF6 (R = Me, Ph, Cy) react with 1,6-heptadiyne and HC≡CR′ (R′ = Ph, C6H9, n-Bu, H), most likely via a ruthenacy-clopentatriene intermediate, to give the ruthenium allyl carbene complexes [CpRu(=CH-η3-C(CH2)3CCHPR 3)]PF6 and [CpRu(=C(R′)-η3-CHC(R′)CHPMe3)]PF 6, respectively. In the case of R = Cy, the allyl carbene complex rearranges to afford the complex [CpRu(η3-CH2C(CH2)3-CCH 2PCy2(η2-C6H 9)]PF6, featuring an η2-coordinated cyclohexenyl ligand. This reaction involves dehydrogenation of one cyclohexyl substituent of the phosphine ligand.
