Metal-aryl complex

Dendritic Sphere Based on Aryl-Metal Complexes. 44... 

T-Alkyl- and Aryl-Metal Complexes by Reaction with the Corresponding Metal Halides... 

Preparation of acyl and alkyl derivatives of metals may be accomplished by nucleophilic substitution of a halide ion in an acyl or alkyl halide by anionic metal complexes. This reaction also can be used to prepare aryl-metal complexes. Other organic reagents (acetates, tosylates and other species) may also be used as precursors ... 

S.8.2.6.5.1] (r-Aryl-Metal Complexes by Oxidative Addition of Arenes. 

S.2.6.6. (T-Aryl-Metal Complexes by Electrophilic Attack on Arenas. 

By varying the metal complex anion and RX, a wide variety of metal compounds containing transition metal-carbon cr-bonds have been prepared directly by this reaction. In addition, acyl metal derivatives prepared by this method may be decarbonylated to give alkyl and aryl metal complexes. 

Salt metathesis [Eq. (7)] is a well-established route in the synthesis of a variety of alkaline-earth metal alkyls [186,208-210], allyls [211-214], benzylates [149,178], cyclopentadienides [17, 108, 215-219], pentadienyls [220], fluorenyls [17, 221], indenyls [222], amides [112, 113, 223], p-diketiminates [112], guanidinates [15, 194], aUcoxides [224], aryloxides [224], silanides [210, 225-228], thiolates [229], phosphanides [230, 231], selenolates [229], and germanides [232, 233]. However, the route has been rarely used for the synthesis of more reactive alkyl and aryl metal complexes, largely due to issues pertaining to ether cleavage chemistry as metathesis typically requires the presence of an ethereal solvent. 

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