Syntheses of some triple chloro-bridged complexes of ruthenium(II) including a novel phosphine ligand transfer reaction

1975 ◽  
pp. 135 ◽  
Author(s):  
Robert A. Head ◽  
John F. Nixon
Keyword(s):  
Transfer Reaction ◽  
Phosphine Ligand ◽  
Ligand Transfer

REACTIONS OF PALLADIUM COMPOUNDS WITH ACETYLENES: II. TETRAKIS(p-CHLOROPHENYL)CYCLOBUTADIENE PALLADIUM COMPLEXES

1965 ◽  
Vol 43 (2) ◽  
pp. 470-478 ◽  
Author(s):  
P. M. Maitlis ◽  
D. Pollock ◽  
M. L. Games ◽  
W. J. Pryde
Keyword(s):  
Transfer Reaction ◽  
Methylene Chloride ◽  
Hydrogen Bromide ◽  
Palladium Complexes ◽  
Palladium Chloride ◽  
Palladium Compounds ◽  
New Type ◽  
Iron Tricarbonyl ◽  
Ligand Transfer

It is found that both diphenylacetylene and bis(p-chlorophenyl)acetylene on reaction with bis(benzonitrile)palladium chloride in benzene give the benzenoid trimer (R6C6) as well as a new type of cyclobutadiene complex [(R4C4)(PdCl2)x]2(R = Ph and p-ClC6H4) for which structure IV is proposed. p,p′-Dichlorotolan reacts with bis(benzonitrile)palladium chloride in ethanol – methylene chloride to give a complex [(R4C4OC2H5)PdCl]2 (II) which is converted into the normal cyclobutadiene complex [(R4C4)PdBr2]2 (V) on treatment with hydrogen bromide. This can also be obtained from IV. The tetrakis(p-chlorophenyl)cyclobutadiene palladium halides on treatment with tri-n-butylphosphine give a dimer of tetrakis(p-chloro-phenyl)cyclobutadiene which is probably octakis(p-chlorophenyl)cyclooctatetraene. Tetrakis-(p-chlorophenyl)cyclobutadiene iron tricarbonyl has also been prepared from IV and V by a ligand-transfer reaction.

Cyclobutadiene–metal complexes. XI. Tetramethylcyclobutadienecobalt(I) complexes

1967 ◽  
Vol 45 (18) ◽  
pp. 2017-2021 ◽  
Author(s):  
R. Bruce ◽  
P. M. Maitlis
Keyword(s):  
Metal Complexes ◽  
Low Temperatures ◽  
Transfer Reaction ◽  
Quantitative Yield ◽  
Dicobalt Octacarbonyl ◽  
Nickel Tetracarbonyl ◽  
Ligand Transfer

The ligand-transfer reaction of tetramethylcyclobutadienenickel chloride dimer with dicobalt octacarbonyl gave tetramethylcyclobutadienedicobalt hexacarbonyl [Me4C4Co(CO)2Co(CO)4] and nickel tetracarbonyl. Triphenylphosphine replaced one carbonyl in Me4C4Co(CO)2·Co(CO)4 to give Me4C4Co(CO)2·Co(CO)3PPh3. Both Me4C4Co(CO)2·Co(CO)4 and Me4C4Co(CO)2·Co(CO)3PPh3 underwent cleavage with iodine at low temperatures to give tetramethylcyclobutadienecobalt dicarbonyl iodide (Me4C4Co(CO)2I); this was also obtained in quantitative yield from [Me4C4NiI2]2 and Co2(CO)8. One carbonyl in Me4C4Co(CO)2I was replaced on reaction with triphenylphosphine, giving Me4C4Co(CO)(PPh3)I. Me4C4Co(Co)2I reacted with both sodium cyclopentadienide and [C5H5Fe(CO)2]2 to give (π-cyclopentadienyl)-(π-tetramethylcyclobutadiene) cobalt.

Photochemical azido ligand transfer reaction of a triarylbismuth diazide with alkynes

1993 ◽  
Vol 34 (6) ◽  
pp. 1055-1056 ◽  
Author(s):  
Hitomi Suzuki ◽  
Chie Nakaya ◽  
Yoshihiro Matano
Keyword(s):  
Transfer Reaction ◽  
Ligand Transfer

scholarly journals Platinum Complexes with Picoline-functionalized Benzimidazolin-2-ylidene Ligands

2010 ◽  
Vol 65 (3) ◽  
pp. 341-346 ◽  
Author(s):  
Mareike C. Jahnke ◽  
Ekkehardt Hahn
Keyword(s):  
Transfer Reaction ◽  
Platinum Complexes ◽  
Metal Center ◽  
Carbene Transfer ◽  
Benzimidazolium Salts ◽  
Ligand Transfer

The dicarbene platinum complexes of the type [Pt(L)2]Br2 [5]Br2 - [8]Br2 (L = N-alkyl-N´- picolylbenzimidazolin-2-ylidene) have been prepared by two different methods. The in situ deprotonation of picoline-functionalized benzimidazolium salts 1 - 4 with platinum acetylacetonate gave the platinum complexes [5]Br2 - [8]Br2 in good yields. Complex [8]Br2 has also been obtained by a ligand transfer reaction from the silver dicarbene complex [9][AgBr2]. Attempts to cystallize [8]Br2 obtained from the carbene transfer reaction led to the isolation of the previously undetected monocarbene complex [Pt(Cl)2L] (10) which contains only one picoline-functionalized carbene ligand coordinating in a chelating fashion to the metal center

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