Multi-step reaction with 9 steps
1: thionyl chloride / dichloromethane / 0 - 20 °C
2: dimethyl sulfoxide / 20 °C
3: sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride / water / 70 °C
4: sodium hydroxide; water / 2.5 h / Heating / reflux
5: thionyl chloride / N,N-dimethyl-formamide / 2 h / 20 °C
6: triethylamine / dichloromethane / 18 h / 20 °C
7: sodium carbonate / tetrakis(triphenylphosphine) palladium(0) / 1,2-dimethoxyethane; water / 80 °C
8: dichloromethane / 3.5 h / 20 °C
9: thionyl chloride / dichloromethane; N,N-dimethyl-formamide / 0.5 h / 20 °C
With
sodium hydroxide; thionyl chloride; N-benzyl-N,N,N-triethylammonium chloride; water; sodium carbonate; triethylamine;
tetrakis(triphenylphosphine) palladium(0);
In
1,2-dimethoxyethane; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide;