Abstract
The generation of mixed metal acylium cations [MCo 2(CO) 6CCO] +, M = (C 5H 5Mo(CO) 2, (C 5Me 5)Mo(CO) 2 and (C 5H 5, from the parent esters via treatment with HPF 6 in propionic anhydride is described. These cations and also the related [(C 5H 5) 2Co 3(CO) 4CCO] + cluster react with alcohols to give esters and with indole or pyrrole to give Friedel-Crafts type products. 1H NMR, IR and FAB mass spectroscopic data are reported.
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