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Olefin, Acetylene, and π-Allylic Complexes of Transition Metals

1962; Academic Press; Linguagem: Inglês

10.1016/s0065-2792(08)60266-6

1875-645X

R. G. Guy, Bernard L. Shaw,

Catalytic Alkyne Reactions

The ability of olefins and acetylenes to function as ligands towards transition metals has aroused considerable interest in the last ten years from both the theoretical and practical viewpoints. Elucidation of the nature of the bonding between the unsaturated hydrocarbon and the metal atom has made an important contribution to the modern concept of valency, and has led to a better understanding of the role metallic catalysts play in chemical reactions. This review deals with metal-hydrocarbon complexes under the following headings: (1) the nature of the metal-olefin and -acetylene bond; (2) olefin complexes; (3) acetylene complexes; (4) n-allylic complexes; and ( 5 ) complexes in which the ligand is not the original olefin or acetylene, but molecule produced from it during complex formation. n-Cyclopmtadienyl complexes, formed by the reaction of cyclopentadiene or its derivatives with metal salts or carbonyls are not discussed in this review, neither arc complexes derived from aromatic systems, e.g., benzene, the cyclopentadienyl anion, and the cycloheptatrienyl cation and from acetylides, which have been reviewed elsewhere.