Multi-step reaction with 6 steps
1.1: ammonia; phenol / 2 h / 150 °C
2.1: O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 24 h / 0 - 20 °C
3.1: trifluoroacetic acid / 20 °C / Neat (no solvent)
3.2: pH 12
4.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.33 h / 0 °C
4.2: 24 h / 0 - 20 °C
5.1: trifluoroacetic acid / 20 °C / Neat (no solvent)
5.2: pH 12
6.1: benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.33 h / Reflux
6.2: 72 h
With
benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; ammonia; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; phenol;
In
dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/j.ejmech.2012.05.022