Multi-step reaction with 8 steps
1: 1.) SeO2, 2.) NaBH4 / 1.) EtOH, pyridine, reflux, 17 h, 2.) EtOH, room temperature, 3 h
2: 0.53 g / N-bromosuccinimide, dimethyl sulphide / CH2Cl2 / 3.75 h / Ambient temperature
3: 1.) n-butyl-lithium / 1.) hexane, THF, -78 deg C; 2.) below -60 deg C, 6 h, then warmed to room temperature during 2 h
4: 0.12 g / toluene-p-sulphonic acid / methanol / 16 h / Ambient temperature
5: 0.10 g / MnO2 / hexane / 3 h / Ambient temperature
6: 0.075 g / NaCN, glacial AcOH, MnO2 / 16 h / Ambient temperature
7: 0.045 g / H2O, KOH / methanol / 3 h / 50 °C
8: 0.025 g / 4-dimethylaminopyridine, NN'-dicyclohexylcarbodiimide / CH2Cl2 / 3 h
With
dmap; manganese(IV) oxide; potassium hydroxide; sodium tetrahydroborate; N-Bromosuccinimide; n-butyllithium; selenium(IV) oxide; dimethylsulfide; sodium cyanide; water; toluene-4-sulfonic acid; acetic acid; dicyclohexyl-carbodiimide;
In
methanol; hexane; dichloromethane;
DOI:10.1039/P19810000679