Multi-step reaction with 13 steps
1.1: lithium borohydride / tetrahydrofuran / 0.5 h / 0 °C / Inert atmosphere
1.2: 12.5 h / 0 - 23 °C / Inert atmosphere
2.1: 1H-imidazole / dichloromethane / 0.5 h / 0 - 23 °C / Inert atmosphere
3.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / -78 °C / Inert atmosphere
3.2: 3 h / -78 - -50 °C / Inert atmosphere
4.1: (S)-1-methyl-3,3-diphenyl-hexahydropyrrolo[1,2-c][1,3,2]oxazaborole; dimethylsulfide borane complex / tetrahydrofuran; toluene / 36 h / 0 - 23 °C / Inert atmosphere
5.1: dmap; triethylamine / dichloromethane / 2 h / 0 - 23 °C / Inert atmosphere
6.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / 0 - 23 °C / Inert atmosphere
7.1: Dess-Martin periodane / dichloromethane / 1 h / 23 °C / Inert atmosphere
8.1: 2-methyl-but-2-ene; sodium chlorite; sodium dihydrogen phosphate monohydrate / tetrahydrofuran; tert-butyl alcohol; water / 1 h / 23 °C / Inert atmosphere
9.1: triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 0.08 h / 0 °C / Inert atmosphere
9.2: 24 h / 0 - 23 °C / Inert atmosphere
10.1: dichloromethane / 2 h / 0 - 23 °C / Inert atmosphere
11.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 18 h / 0 - 23 °C / Inert atmosphere
12.1: 2,2',2''-triaminotriethylamine / dichloromethane / 2 h / 0 - 23 °C / Inert atmosphere
13.1: triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 24 h / 0 - 23 °C / Inert atmosphere
With
1H-imidazole; dmap; sodium chlorite; lithium borohydride; n-butyllithium; sodium dihydrogen phosphate monohydrate; 2-methyl-but-2-ene; 2,2',2''-triaminotriethylamine; dimethylsulfide borane complex; tetrabutyl ammonium fluoride; Dess-Martin periodane; triethylamine; N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; (S)-1-methyl-3,3-diphenyl-hexahydropyrrolo[1,2-c][1,3,2]oxazaborole;
In
tetrahydrofuran; hexane; dichloromethane; water; N,N-dimethyl-formamide; toluene; tert-butyl alcohol;
10.1: |Acyloin Condensation;
DOI:10.1021/jacs.7b12692