sodium methylate in tetrahydrofuran; methanol T=0 - 23°C; 0.666667 h;

1.1: n-BuLi; TMP / tetrahydrofuran; hexane / 0.33 h / -78 °C 1.2: 52 percent / tetrahydrofuran; hexane / 21 h / -30 - 23 °C 2.1: 100 percent / NaOMe / tetrahydrofuran; methanol / 0.67 h / 0 - 23 °C View Scheme