n-BuLi in hexane byproducts: LiCl, BuH; inert atm.; equimolar ratio pyrrole:BuLi, stirring (room temp., 3-4 h), cooling (-70°C), stirring (5-10 h); filtn., distn.(vac.); elem. anal.;

in benzene-d6 80°C (14 h); detd. by (1)H and (31)P NMR spectroscopy;