Multi-step reaction with 12 steps
1: 100 percent / NaCNBH3, TFA / 0.25 h / 0 °C
2: DIBAL-H / CH2Cl2; toluene / 5 h / -78 °C
3: aq. HCl, aq. Rochelles salt / CH2Cl2; toluene / -78 °C
4: aq. NaClO2, 2-methyl-2-butene, aq. NaH2PO4 / 2-methyl-propan-2-ol / 3 h / 60 °C
5: K2CO3 / acetone / 2 h / 22 °C
6: 100 percent / LiN(TMS)2 / tetrahydrofuran / 67 °C
7: 100 percent / Na, liq. NH3 / tetrahydrofuran / -78 °C
8: 1.) t-BuOK, 2.) O2 / 1.) THF, 0 deg C, 0.25 h, 2.) THF, 23 deg C, 0.25 h
9: 100 percent / K2CO3 / acetone / 18 h / 23 °C
10: 74 percent / tetrahydrofuran; diethyl ether / 0.25 h / 0 °C
11: 100 percent / aq. HCl / dioxane / 23 °C
12: 1,1,3,3-tetramethylguanidine / CH2Cl2 / 3 h / 23 °C
With
hydrogenchloride; sodium chlorite; sodium dihydrogenphosphate; 2-methyl-but-2-ene; potassium tert-butylate; ammonia; oxygen; sodium; diisobutylaluminium hydride; sodium cyanoborohydride; potassium carbonate; rochelle salt; trifluoroacetic acid; lithium hexamethyldisilazane; N,N,N',N'-tetramethylguanidine;
In
tetrahydrofuran; 1,4-dioxane; diethyl ether; dichloromethane; acetone; toluene; tert-butyl alcohol;
DOI:10.1016/0040-4020(96)00866-6