Multi-step reaction with 4 steps
1.1: n-butyllithium; diisopropylamine / tetrahydrofuran / 1 h / -78 °C
1.2: 2 h / -78 - 23 °C
2.1: n-butyllithium; diisopropylamine / tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide / 1 h / -78 °C
2.2: 2 h / -78 - 23 °C
3.1: hydrogenchloride; water / 12 h
4.1: O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide; tetrahydrofuran / 36 h
With
hydrogenchloride; n-butyllithium; water; benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; diisopropylamine; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; N,N-dimethyl-formamide;