Multi-step reaction with 7 steps
1: toluene-4-sulfonic acid / acetone / 2 h / 20 °C
2: 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; [bis(acetoxy)iodo]benzene / water; acetonitrile / 4 h / 40 °C / Inert atmosphere
3: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; ammonium chloride; benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 14 h / 50 °C
4: oxalyl dichloride; dimethyl sulfoxide; N-ethyl-N,N-diisopropylamine / dichloromethane / 1.5 h / -78 °C
5: N-ethyl-N,N-diisopropylamine / propan-1-ol / 4 h / 70 °C
6: sodium azide; ammonium chloride / N,N-dimethyl-formamide / 10 h / 0 - 90 °C
7: hydrogenchloride / tetrahydrofuran; water / 14 h / 20 °C
With
hydrogenchloride; sodium azide; oxalyl dichloride; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; [bis(acetoxy)iodo]benzene; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; ammonium chloride; benzotriazol-1-ol; toluene-4-sulfonic acid; dimethyl sulfoxide; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; propan-1-ol; dichloromethane; water; N,N-dimethyl-formamide; acetone; acetonitrile;
DOI:10.1002/cmdc.201100126