sodium hydride in N,N-dimethyl-formamide T=23°C; 0.383333 h;

1: 58 percent / NaH / dimethylformamide / 1.75 h / 23 °C 2: 35 percent / NaH / dimethylformamide / 2.17 h / 23 °C 3: 52 percent / NaH / dimethylformamide / 0.38 h / 23 °C View Scheme