TY - JOUR
T1 - Further chemistry of ruthenium butatrienylidene complexes
AU - Bruce, M.I.
AU - Ellis, B.G.
AU - Skelton, Brian
AU - White, Allan
PY - 2005
Y1 - 2005
N2 - Several complexes have been obtained from reactions carried out in early attempts to prepare the diynyl complexes Ru(C&3bond; CC&3bond; CR)(dppe)Cp* (R = H, SiMe3). These have been identified crystallographically as the acyl complex Ru{C&3bond; CC(O)Me}(dppe)Cp* (3), the cationic imido complex [Ru{C&3bond; CC(=NH2)Me}(dppe)Cp*]PF6 (4), the binuclear butenynylallenylidene [{Ru(dppe)Cp*}(2){mu-C&3bond; CC(OMe)=CHCMe=C=C=}]PF6 (5), and the bis(ethynyl)cyclobutenylidene [{Ru(dppe)Cp*}(2){mu-C&3bond; CC4H2(SiMe3)C&3bond; C}]PF6 (6). NMR studies of 5 have revealed the existence of two isomers. Plausible routes for their formation from the putative butatrienylidene intermediate [Ru(=C=C=C=CH2)(dppe)Cp*](+) (A) are discussed. (c) 2005 Elsevier B.V. All rights reserved.
AB - Several complexes have been obtained from reactions carried out in early attempts to prepare the diynyl complexes Ru(C&3bond; CC&3bond; CR)(dppe)Cp* (R = H, SiMe3). These have been identified crystallographically as the acyl complex Ru{C&3bond; CC(O)Me}(dppe)Cp* (3), the cationic imido complex [Ru{C&3bond; CC(=NH2)Me}(dppe)Cp*]PF6 (4), the binuclear butenynylallenylidene [{Ru(dppe)Cp*}(2){mu-C&3bond; CC(OMe)=CHCMe=C=C=}]PF6 (5), and the bis(ethynyl)cyclobutenylidene [{Ru(dppe)Cp*}(2){mu-C&3bond; CC4H2(SiMe3)C&3bond; C}]PF6 (6). NMR studies of 5 have revealed the existence of two isomers. Plausible routes for their formation from the putative butatrienylidene intermediate [Ru(=C=C=C=CH2)(dppe)Cp*](+) (A) are discussed. (c) 2005 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.jorganchem.2005.01.035
DO - 10.1016/j.jorganchem.2005.01.035
M3 - Article
SN - 0022-328X
VL - 690
SP - 1772
EP - 1783
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 7
ER -