Shall I know the best solid catalyst for Carboxymethylation reaction?
Is Palladium is suitable? Or in group Vii metal which is suitable one? please send the answer as soon as possible!!
The carboxymethylation catalyst precursor may be any composition which is known to be useful in catalyzing carboxymethylation reactions and which generally contains a metal from Group VIII of the Periodic Table (CAS version). These compositions are referred to as "carboxymethylation catalyst precursors" herein since the precise form of the catalyst participating in the reaction is not known with certainty. In any event, the carboxymethylation catalyst precursor preferably comprises cobalt. Without being bound by a particular theory, it is believed that a reduced form of cobalt acts as the active catalyst species in the carboxymethylation reactions of the present invention. Still more preferably the carboxymethylation catalyst precursor is selected from a group consisting of cobalt metal, cobalt oxide, organic and inorganic salts of cobalt (for example, halides such as cobalt chloride and cobalt bromide), aromatic and aliphatic carboxylates of cobalt (such as cobalt acetate, cobalt propionate, cobalt octanoate, cobalt stearate, cobalt benzoate and cobalt naphthenate), and complex cobalt compounds containing one or more ligands such as carbonyls, nitriles and phosphines. The preferred cobalt-containing carboxymethylation catalyst precursors are dicobaltoctacarbonyl (Co2(CO)8).