Triphenyl sodium tetraphenylborate

One of the largest commercially used Grignard reagents is phenyhnagnesium chloride. Millions of kg per year of this Grignard react captively with inorganic haUdes. Some examples of these products are triphenylphosphine, triphenyl tin hydroxide, sodium tetraphenylborate, and triphenylantimony. 

Bis(l-methylimidazol-2-yl)methane and -ketone with the dimer [Rh(CO)2Cl]2 in the presence of sodium tetraphenylborate give the dicarbonyl complexes 68 (X CHj, CO L = CO) where the carbonyl ligands may easily be substituted by the triphenyl phosphine ligands to yield 68 (X = CH, CO L = PPh ) (99JOM(588)69). The bis(l-methylbenzimidazol-2-yl)methane analogs of 68 (X=CH2 L=C0, PPhj) can be prepared similarly. 

Triphenyl Telluronium Tetraphenylborate2 Equimolar amounts of aqueous solutions of triphenyl telluronium chloride and sodium tetraphenylborate arc mixed. The voluminous precipitate is filtered off, washed with water, and recryslallized from dimethylformamide/water m.p. 219". 

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See also in sourсe #XX -- [ ]

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