π-complexes as ligands in transition metal compounds IV. Metallation of π-pyrrolyltricarbonylmanganese

The metallationof π-pyrrolyltricarbonylmanganese (PTM) with n-butyl-lithium has been studied. The metallizing agent has been shown to attack the carbonyl group of PTM, forming a trinuclear complex (I) as a reaction product. The complex contains the initial and the CO group-metallated molecules of PTM as n-ligands. The possible routes of formation of I are discussed.