Multi-step reaction with 18 steps
1: 94 percent / diisobutylaluminium hydride (DiBAH) / CH2Cl2 / 3 h / -78 °C
2: 72 percent / t-BuOOH, L(+)-diethyl tartrate, Ti(O-i-Pr)4 / CH2Cl2 / 3 h / -20 °C
3: toluene; hexane / 2 h / Ambient temperature
4: 53 percent / pyridine, dimethylaminopyridine (DMAP) / CH2Cl2 / 8 h / 0 - 20 °C
5: 93 percent / HN3, PPh3, DEAD / toluene / 2 h / Ambient temperature
6: H2 / Pd / methanol / 5 h / Ambient temperature
7: KOH / toluene / 4 h / 0 °C
8: 77 percent / BBr3 / CH2Cl2 / 3 h / 20 - 50 °C
9: 84 percent / NaN3 / dimethylformamide / 16 h / 140 °C
10: 87 percent / DMAP, Et3N / CH2Cl2 / 12 h / Ambient temperature
11: 78 percent / CsCO3 / methanol / 14 h / Ambient temperature
12: 81 percent / pyridinium dichromate (PDC) / dimethylformamide / 12 h / Ambient temperature
13: 82 percent / H2 / Pd / methanol / 5 h / Ambient temperature
14: 67 percent / K2CO3 / 14 h / Ambient temperature
15: 73 percent / NaOH / dioxane / 12 h / 0 - 20 °C
16: 41 percent / benzotriazole-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (BOP), Et3N / CH2Cl2 / 12 h / Ambient temperature
17: 90 percent / Pd(PPh3)4, morpholine / tetrahydrofuran / 1 h / Ambient temperature
18: 79 percent / trifluoroacetic acid / CH2Cl2 / 2 h
With
morpholine; pyridine; titanium(IV) isopropylate; tert.-butylhydroperoxide; dmap; potassium hydroxide; sodium hydroxide; dipyridinium dichromate; tetrakis(triphenylphosphine) palladium(0); sodium azide; diethyl (2R,3R)-tartrate; tris-(2-chloro-ethyl)-amine; hydrogen; boron tribromide; diisobutylaluminium hydride; potassium carbonate; (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; triethylamine; triphenylphosphine; trifluoroacetic acid; diethylazodicarboxylate;
palladium;
In
tetrahydrofuran; 1,4-dioxane; methanol; hexane; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1039/c39900001216