48194-86-1Relevant academic research and scientific papers
A rapid and convenient method for the formation of (diene)Fe(CO)3 complexes
Docherty, Gordon F.,Knox, Graham R.,Pauson, Peter L.
, p. 287 - 290 (1998)
The formation of (diene)Fe(CO)3 complexes has been achieved in the absence of solvent by the action of mild heat on a mixture of the diene and a preformed mixture of Fe2(CO)9 and silica gel. The yield of complex obtained compares well with literature examples especially for polar substrates. The first complexation of Danishefsky's diene, 1-methoxy-3-trimethylsilyloxybuta-1,3-diene, to Fe(CO)3 has been achieved using this method. The speed of the reaction (typically complete after 2 h at 85°C) and the ease of work-up make this solid-state procedure the method of choice for the preparation of complexes of many polar dienes and heterodienes.
Synthesis of cationic allyl- and dienecarbonyl complexes of group VI-VIII metals in the presence of strong protonic acid
Krivykh, V. V.,Gusev, O. V.,Rybinskaya, M. I.
, p. 351 - 362 (2007/10/02)
Cationic allylcarbonyl complexes of Cr, Mo, W, Mn, Re, Fe, Co, Rh and Ir are synthesized by reaction of a carbonyl-containing compound with allyl alcohol or conjugated diene in the presence of strong protonic acid.This reaction is promoted by an increase in basicity of the initial complex and an increase in acidity of the medium; the nature of the organic substrate is also important for synthesis of this type of carbonyl complex.Cationic diene complexes have been formed by the action of dienes and acid on compounds with a metal-metal bond or on neutral allyl complexes.
REACTION OF η4-DIENE-AND η4-HETERODIENE-IRON CARBONYL COMPLEXES WITH 1,2-BIS(DIPHENYLPHOSPHINO)ETHANE: A ROUTE TO DICARBONYL TRISPHOSPHINE IRON COMPLEXES
Bellachioma, G.,Cardaci, G.
, p. 91 - 98 (2007/10/02)
The reaction of 1,2-bis(diphenylphosphino)ethane with (η4-diene)- and (η4-heterodiene)-Fe(CO)2L complexes gives the complex .A mechanism for the formation of this complex is proposed on the basis of the reaction products and the kinetic results.
Kinetics and Mechanism of Mono- and Di-olefin Exchange at Five-co-ordinate Iron(0)
Burkinshaw, Philip M.,Dixon, Denis T.,Howell, James A. S.
, p. 999 - 1004 (2007/10/02)
Exchange of various mono-olefins with styrene in proceeds via a dissociative process, involving an Fe(CO)4 intermediate.Ligand exchange in system (i) (enone = benzylideneacetone, cinnamaldehyde, chalcone, or dypnone; polyene = cyclohexa- and cyclohepta-1,3-diene, cycloheptatriene, cyclo-octatetraene, 4-enone)> + polyene (*) 4-polyene)> + enone (i) or 1,4-diphenylbuta-1,3-diene) is stepwise, involving a rate-determining dechelation of the ?-bound CO moiety.Both associative and dissociative pathways are found.The influence of diene structure and enone substituent is discussed.
