1: sodium sulphite / H2O / Heating
2: phosphorus trichloride oxide / 120 - 140 °C
3: Bu2SnH / benzene / 1.75 h / 20 °C / ultrasound
View Scheme
参考文献
Culshaw, Peter N.; Walton, John C.
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1991 , # 8 p. 1201 - 1208
1: ethyl acetoacetate With sodium hydride in tetrahydrofuran
T=0°C; 0.25 h;
2: With n-butyllithium in tetrahydrofuran; hexane
T=0°C; 0.333333 h;
3: 5-bromo-1-pentene in tetrahydrofuran; hexane
T=20°C; 0.5 h; Further stages.;