12112-97-9Relevant articles and documents
Mechanism and Equilibrium Constants of the Reaction between Carbon Monoxide and Triphenyl-phosphine-, -arsine-, and -stibine-dicarbonyl-(1-2-η:3-4-η-1,4-diphenyl-1-azabuta-1,3-diene)iron
Bellachioma, Gianfranco,Reichenbach, Gustavo,Cardaci, Giuseppe
, p. 634 - 637 (1980)
Equilibrium and rate data have been measured for the ligand-substitution rection 4-C6H5CH=ChCh=NC6H5)-(CO)2L> + CO = 4-C6H5CH=CHCH=NC6H5)(CO)3> + L where L=PPh3, AsPh3, or SbPh3.The reaction proceeds via a dissociative equilibrium of the η4 complexes to ? unsaturated complexes.Variations of the equlibrium and rate constants appear to be mainly associated with the basicity of the ligands.
A new method for the synthesis of iron azadiene and diene complexes. Reaction of (η2-RCHCHCOR')Fe(CO)4 with aniline and ylide
Semmelhack, M.F.,Cheng, C.H.
, p. 237 - 241 (2007/10/02)
The reactions of (η2-RCH=CHCOR')Fe(CO)4 (R = Ph, R' = H; R = H, R' = H and R = H, R' = CH3) with aniline or its derivative afforded η4-azadiene complexes 1, 2 and 3 in various yields.The azadiene ligands in 2 and 3 are too reactive to isolate at ambient temperature, but 2 and 3 are stable up to ca 110 deg C.Treatment of (ν2-CH2=CHCHO)Fe(CO)4 with Ph3PCHOOMe gave a η2-diene complex 4 which was converted to (η4-CH=CHCH=CHCOOMe)Fe(CO)3 on heating, or reacting with (CH3)3NO.