1: 2-picoline With n-butyllithium in diethyl ether Inert atmosphere; 2: chloro-trimethyl-silane in diethyl ether Inert atmosphere;

diethylphosphinoethane in diethyl ether Triethylphosphine is added to a suspn. of NiCl2 in ether and stirred for 2 h (N2). A soln. of (Li2(btsmp)2) in ether is then added over 2 h and stirring continues for 15 min.; The ppt. is filtered, and the solvent is removed by vacuum pumping. The ppt. is redissolved in toluene, washed with water and chromatographed on alumina (pentane). The solvent is removed; recrystn. from pentane at -25°C, elem. anal.;

diethyl ether; ammonia; KNH2 T=34°C;

ammonia; KNH2 und Behandeln des Reaktionsprodukts mit Chlortrimethyl-silan in siedendem Aether;

in chloroform-d1 (N2); using Schlenk techniques, dissolving in water-containing CDCl3; monitoring by NMR;