[Ag{Se2C2(CN)2}(Se6)]3−, [Sb{Se2C2(CN)2}2]3− und [As(Se)3(CH2CN)]2−: einfache Bildung des Maleonitrildiselenolat(mns)-Liganden [Se2C2(CN)2]2−

The reaction of vinylidene complexes [(η 5-C5H5)(CO)(NO)WCCHR] [R = H (1a), CH3 (1b), C6H5 (1c)] with chlorodiphenylphosphine (2) leads to neutral [R = H (3a), CH3 (3b), C6H5 (3c)]. Analogously the reaction of chlorodi-tert-butylphosphine (4) with [(η 5-C5H5)(CO)(NO)WCCH2] (1a) gives rise to chloro(η 5-cyclopentadienyl)nitrosyl(η 2-di-tert-butylphosphinovinyl)tungsten (5). The formation of these metallacyclopropane rings is rationalized by the nucleophilic attack of chlorophosphine on the Cα carbon of the vinylidene, followed by substitution of the carbonyl ligand. Single-crystal X-ray diffraction data of 3a−c and 5 are reported.

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Reactions of Ruthenium−Benzylidene Complexes with Bis(trimethylsilyl)ethene and Trimethylsilylstyrenes: Olefin Metathesis versus β-SiMe₃ Elimination/Reductive Elimination

Pietraszuk

Fischer

2001

Organometallics

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The benzylidene complexes [Cl 2 (PCy 3 ) 2 RudC(C 6 H 4 R-p)H] [R ) H (1a), Cl (1b), OMe (1c)] react with (E)-bis(trimethylsilyl)ethene (2) to give 3,3-bis(trimethylsilylAnalogously, reaction of 1a with trimethylsilylstilbene gives H(Ph)CdC(SiMe 3 )H (4a). In contrast, reaction of 1a with para-methoxysubstituted trimethylsilylstilbene, H(Me 3 Si)CdC(C 6 H 4 OMe-p)H (4b), affords mixtures of the crossmetathesis product, H(Me 3 Si)CdC(Ph)H, and various propene derivatives. Labeling experiments have been carried out. The mechanism of these reactions is discussed.

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[Ag{Se2C2(CN)2}(Se6)]3−, [Sb{Se2C2(CN)2}2]3− und [As(Se)3(CH2CN)]2−: einfache Bildung des Maleonitrildiselenolat(mns)-Liganden [Se2C2(CN)2]2−

Cited by 5 publications

References 22 publications

Synthesis and reactivity of half-sandwich type cobalt, rhodium and iridium complexes containing trithiocarbonate, dithiocarbonate, N-cyanodithiocarbimate, 1,1-dicyanoethylene-2,2-dithiolate and 1,1-dicyanoethylene-2,2-diselenolate as chelating ligands

Synthesis and reactivity of half-sandwich type cobalt, rhodium and iridium complexes containing trithiocarbonate, dithiocarbonate, N-cyanodithiocarbimate, 1,1-dicyanoethylene-2,2-dithiolate and 1,1-dicyanoethylene-2,2-diselenolate as chelating ligands

η²-Alkynyl and Vinylidene Transition Metal Complexes. 6.¹ Reaction of Tungsten Vinylidene Complexes with Chlorophosphines as Nucleophile. Preparation and Crystal Structural Analysis of Neutral η²-Phosphinovinyl Complexes

Reactions of Ruthenium−Benzylidene Complexes with Bis(trimethylsilyl)ethene and Trimethylsilylstyrenes: Olefin Metathesis versus β-SiMe₃ Elimination/Reductive Elimination

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[Ag{Se2C2(CN)2}(Se6)]3−, [Sb{Se2C2(CN)2}2]3− und [As(Se)3(CH2CN)]2−: einfache Bildung des Maleonitrildiselenolat(mns)-Liganden [Se2C2(CN)2]2−

Cited by 5 publications

References 22 publications

Synthesis and reactivity of half-sandwich type cobalt, rhodium and iridium complexes containing trithiocarbonate, dithiocarbonate, N-cyanodithiocarbimate, 1,1-dicyanoethylene-2,2-dithiolate and 1,1-dicyanoethylene-2,2-diselenolate as chelating ligands

Synthesis and reactivity of half-sandwich type cobalt, rhodium and iridium complexes containing trithiocarbonate, dithiocarbonate, N-cyanodithiocarbimate, 1,1-dicyanoethylene-2,2-dithiolate and 1,1-dicyanoethylene-2,2-diselenolate as chelating ligands

η2-Alkynyl and Vinylidene Transition Metal Complexes. 6.1 Reaction of Tungsten Vinylidene Complexes with Chlorophosphines as Nucleophile. Preparation and Crystal Structural Analysis of Neutral η2-Phosphinovinyl Complexes

Reactions of Ruthenium−Benzylidene Complexes with Bis(trimethylsilyl)ethene and Trimethylsilylstyrenes: Olefin Metathesis versus β-SiMe3 Elimination/Reductive Elimination

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η²-Alkynyl and Vinylidene Transition Metal Complexes. 6.¹ Reaction of Tungsten Vinylidene Complexes with Chlorophosphines as Nucleophile. Preparation and Crystal Structural Analysis of Neutral η²-Phosphinovinyl Complexes

Reactions of Ruthenium−Benzylidene Complexes with Bis(trimethylsilyl)ethene and Trimethylsilylstyrenes: Olefin Metathesis versus β-SiMe₃ Elimination/Reductive Elimination