RHODIUM(III) COMPLEXES OF N,N-DIMETHYLPYRROLE-1-CARBOTHIOAMIDE AND N,N-DIMETHYLPYRROLE-2-CARBOTHIOAMIDE

N,N-Dimethylpyrrole-1- and 2-carbothioamide (abbreviated, respectively , as Hnpt and Hapt) reacted with trichlorobis(tri-n-butylphosphine)rho dium(III)in refluxing toluene to give, respectively, RhCl2(npt)(PBu(3) )(2) and RhCl2(apt)(PBu(3))(2). In the former was cyclorhodated at 2-C of the pyrrole ring while in the latter the ring of apt was coordinat ed through the ring-N atom under deprotonation: in the two the thioami de-S atoms were ligated to the rhodium(III) center forming a five-memb ered chelate ring.