in melt mixing equimolar amounts; heating to 125°C while stirring; crystn. on cooling;; dissolving in n-pentane, filtration, evapn., crystn. at -60°C; further purification by sublimation in vac. (1E-Torr, 65°C, 8h); elem. anal.; detn. by mass-spectroscopy, (1)-H-, (13)C-NMR, IR;;

in diethyl ether byproducts: LiCl; Ar atmosphere, addn. of soln. of AlCl3 to soln. of Li-complex (boiling, dropwise), refluxing (1.5 h), pptn.; filtration, sepn. of solvent (room temp., vac.), sublimation (40-50°C, vac.); elem. anal.;

1: pentane 2: pentane 3: melt View Scheme

1: pentane 2: melt View Scheme

in not given product mixture; detn. by NMR;;