Multi-step reaction with 6 steps
1: sodium hydride / tetrahydrofuran / 1 h / 25 °C
2: 80percent m-chloroperbenzoic acid / CH2Cl2 / 25 °C
3: 1.) hexamethylphosphoric triamide (HMPA), n-BuLi / 1.) THF, hexane, -78 deg C, 15 min, 2.) from -78 deg C to 25 deg C
4: 1.) hexamethylphosphoric triamide (HMPA), n-BuLi / 1.) THF, -78 deg C, 15 min, 2.) from -78 deg C to RT, 4 h
5: 87 percent / sodium hydride / tetrahydrofuran / 1.) 0 deg C, 2.) RT, 5 min
6: 74 percent / methyl disulfide / CH2Cl2 / 12 h
With
N,N,N,N,N,N-hexamethylphosphoric triamide; n-butyllithium; Dimethyldisulphide; sodium hydride; 3-chloro-benzenecarboperoxoic acid;
In
tetrahydrofuran; dichloromethane;