Multi-step reaction with 5 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: O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 14 h / 20 °C
4: N-ethyl-N,N-diisopropylamine / propan-1-ol / 2 h / 70 °C
5: hydrogenchloride / tetrahydrofuran; water / 16 h / 20 °C
With
hydrogenchloride; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; [bis(acetoxy)iodo]benzene; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; toluene-4-sulfonic acid; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; propan-1-ol; water; N,N-dimethyl-formamide; acetone; acetonitrile;
DOI:10.1002/cmdc.201100126