Multi-step reaction with 8 steps
1.1: pyridine / 12 h / Inert atmosphere
2.1: dimethyltin dichloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.03 h / Inert atmosphere
2.2: 1.5 h / 20 °C / Inert atmosphere
3.1: pyridine / dichloromethane / 2 h / 10 °C / Inert atmosphere
4.1: tetrabutylammoniun azide / acetonitrile / 20 h / -30 °C / Inert atmosphere
5.1: water / acetonitrile / 1 h / 65 °C / Inert atmosphere
6.1: pyridine / dichloromethane / 0.5 h / 0 °C / Inert atmosphere
7.1: trifluoromethylsulfonic anhydride; 1,1'-sulfinylbisbenzene / dichloromethane / 0.17 h / -60 °C / Inert atmosphere
7.2: 1 h / 1 °C / Inert atmosphere
8.1: pyridine; thiourea / ethanol / 0.5 h / 80 °C / Reflux; Inert atmosphere
With
pyridine; trifluoromethylsulfonic anhydride; 1,1'-sulfinylbisbenzene; water; dimethyltin dichloride; tetrabutylammoniun azide; N-ethyl-N,N-diisopropylamine; thiourea;
In
tetrahydrofuran; ethanol; dichloromethane; acetonitrile;
DOI:10.1039/c3ob40935j