Multi-step reaction with 7 steps
1: potassium carbonate / acetic acid butyl ester; water / 1.5 h / 80 °C
2: tetrabutyl ammonium fluoride / tetrahydrofuran / 1 h / 60 °C
3: caesium carbonate / N,N-dimethyl-formamide / 2 h / 80 °C
4: lithium hydroxide monohydrate; water / tetrahydrofuran / 2 h
5: N-ethyl-N,N-diisopropylamine; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide / N,N-dimethyl-formamide / 0.67 h / 20 °C
6: TurboGrignard / tetrahydrofuran / 1 h / 0 °C
7: sodium tetrahydroborate; ethanol / 0.25 h / 0 °C
With
sodium tetrahydroborate; TurboGrignard; lithium hydroxide monohydrate; ethanol; tetrabutyl ammonium fluoride; water; potassium carbonate; caesium carbonate; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; acetic acid butyl ester; water; N,N-dimethyl-formamide;