manganese(IV) oxide in benzene

1: 1-(3,4-dihydro-2H-pyran-6-yl)ethanone With potassium tert-butylate in tetrahydrofuran T=0°C; 0.0833333 h; Inert atmosphere; 2: benzaldehyde in tetrahydrofuran 0.5 h; Inert atmosphere; 3: With water in tetrahydrofuran Inert atmosphere;

1.1: t-butyllithium / tetrahydrofuran; pentane / -78 - 0 °C 1.2: 60 percent / tetrahydrofuran; pentane / 1 h / 0 °C 2.1: 80 percent / manganese(IV) oxide / benzene View Scheme

1.1: t-butyllithium / tetrahydrofuran; pentane / -78 - 0 °C 1.2: 60 percent / tetrahydrofuran; pentane / 1 h / 0 °C 2.1: 80 percent / manganese(IV) oxide / benzene View Scheme