sodium hydride in N,N-dimethyl-formamide; mineral oil T=0 - 20°C; Inert atmosphere;

1: 1-(4-methoxybenzyl)-3,4-dihydroquinolin-2(1H)-one With lithium hexamethyldisilazane in tetrahydrofuran T=-78°C; 0.5 h; 2: methyl iodide in tetrahydrofuran