TELLURIUM IN ORGANIC-SYNTHESIS .4. CARBONYLATION OF SOME AROMATIC TELLURIUM COMPOUNDS IN THE PRESENCE OF NI(CO)4

The reaction of ArTeCl3 and Ar2TeCl2 with Ni(CO)4 in dimethylformamide followed by aqueous work-up readily gives the corresponding carboxylic acids. A mechanism is suggested in which the aromatic telluride adds oxidatively to nickel, and this is followed by insertion of a CO-unit yielding an ArCONi complex. © 1979.