Chemistry of polynuclear metal complexes with bridging carbene or carbene ligands. Part 108. Synthesis and reactions of the alkylidynetungsten complexes [W(CR)(CO)2{(F3B)C(pz)3}](R = Me or C6H4Me-4, pz = pyrazol-1-yl) and their use as reagents for preparing di-and tri-metal compounds

1991 ◽  
pp. 93-99 ◽  
Author(s):  
Peter K. Byers ◽  
F. Gordon A. Stone
Keyword(s):  
Metal Complexes ◽  
Carbene Ligands ◽  
Metal Compounds ◽  
Polynuclear Metal Complexes

Pseudohalogeno-Metallverbindungen, LXVIII [1]. Reaktionen der Cyanometallsäuren NCAuCNH, (NC)4Pt(CNH)2, (NC)2M(CNH)4(M = Fe, Ru, Os) und Co[bis(dimethyIglyoximato)](CN)CNHmit Epoxiden: 2-Hydroxyalkylisocyanid- und Oxazolidin-2-yIiden-MetalIkomplexe / Pseudohalogeno Metal Compounds, LXVIII [1]. Reaction of Cyano Metal Acids NCAuCNH, (NC)4Pt(CNH)2, (NC)2M(CNH)4 (M = Fe, Ru, Os) and Co[bis(dimethylglyoximato)](CN)CNH with Epoxides: 2-Hydroxyalkylisocyanide and Oxazolidine-2-ylidene Metal Complexes

1988 ◽  
Vol 43 (3) ◽  
pp. 328-338 ◽  
Author(s):  
Wolfgang Weigand ◽  
Ulrich Nagel ◽  
Wolfgang Beck
Keyword(s):  
Crystal Structure ◽  
Carbon Atom ◽  
Metal Complexes ◽  
Structure Determination ◽  
Ring Opening ◽  
Crystal Structure Determination ◽  
Carbene Ligands ◽  
Metal Compounds

NCAuCNH reacts with expoxides to give oxazolidine-2-ylidene (2) and 2-hydroxyalkyl complexes (3), respectively. Complexes with cyclic carbene ligands [XXX] (5) and [XXX] (7) are formed from the corresponding isocyanic metal compounds and oxiranes. 5b has been characterized by crystal structure determination. Ring opening of phenyloxirane occurs at the phenyl substituted carbon atom. (NC)2M(CNH)4 (M = Fe, Ru, Os) and oxirane yield mixtures of [XXX] and [XXX].

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