149752-52-3Relevant academic research and scientific papers
Ruthenium complexes containing butatrienylidene and related ligands: Synthesis, characterisation and chemistry
Bruce, Michael I.,Hinterding, Peter,Low, Paul J.,Skelton, Brian W.,White, Allan H.
, p. 467 - 473 (2007/10/03)
The reaction of buta-l,3-diyne with [RuUhfXPPhjJjOi-CjHj)](thf = tetrahydrofuran) to give [Ru(C=C=C=CH2)(PPh3)2(T)-CjHj)]+ has been studied. This complex adds nucleophiles at Cr, as expected from theory and consideration of the protection afforded to Ca by the bulky PPhj ligands. The products were alkenylethynyl complexes (from aprotic nucleophiles) or methylallenylidene complexes (from protic nucleophiles, with H migration to C6). With water, the complex [RufC^CQOJMeKPPhjJjOi-CsHj)] is formed. The single-crystal structures of [Ru{OC=CMe(X)}(PPh3)2(r|-CjHi)][PF6] (X = NPh2 or C4H3NMe-2) and [Ru(OCCH=CHCl-f/w)(PPhj)j(r|-CjH5)] have been determined.
Alkenylvinylidene and allenylidene complexes: Evidence for the formation of a metal-trienylidene intermediate
Bruce, Michael I.,Hinterding, Peter,Low, Paul J.,Skelton, Brian W.,White, Allan H.
, p. 1009 - 1010 (2007/10/03)
Reactions of [Ru(thf)(PPh3)2(η-C5H5)][PF 6] with buta-1,4-diyne in the presence of nucleophiles give alkenylvinylidene or allenylidene complexes; the results are rationalised in terms of the formation of the intermediate trienylidene cation [Ru(C=C=C=CH2)-(PPh3)2(η-C 5H5)]+ which undergoes nucleophilic addition at Cγ; the X-ray structure of the heteroallenylidene [Ru{C=C=CMe(NPh2)}(PPh3)2(η-C 5H5)][PF6] 2 is determined.
