Ni(PCy3)2Cl2 in tetrahydrofuran; 1-methyl-pyrrolidin-2-one T=90°C; Negishi coupling reaction; 8 h; Inert atmosphere;

Ni(PCy3)2Cl2 in tetrahydrofuran; 1-methyl-pyrrolidin-2-one T=90°C; Negishi coupling reaction; 8 h; Inert atmosphere;

in N,N-dimethyl-formamide T=50°C; 24 h; Inert atmosphere;

methyl iodide in ammonia condensation of sodium-dried ammonia into round-bottomed Pyrex flask, addn. of Me3SnCl and Na, then addn. of CNC6H4NMe3I; holding in dark for 0.08 h; quenching by addn. of MeI in excess; evapn. of ammonia, treatment with water, extn. with ether;