Multi-step reaction with 12 steps
1.1: (n-Bu)2BOTf; Et3N / CH2Cl2 / 0.5 h / 0 °C
1.2: 85 percent / CH2Cl2 / 12 h / -78 °C
2.1: 92 percent / LiBH4 / tetrahydrofuran / -20 - 0 °C
3.1: 94 percent / pyridine / CH2Cl2 / 0.67 h / -20 °C
4.1: 96 percent / imidazole / dimethylformamide / 12 h / 25 °C
5.1: 98 percent / DIBAL-H / CH2Cl2 / 0.5 h / -78 °C
6.1: 94 percent / (COCl)2; DMSO; Et3N / CH2Cl2 / -78 - 0 °C
7.1: 92 percent / benzene / 12 h / Heating
8.1: 98 percent / DIBAL-H / CH2Cl2 / 0.5 h / -78 °C
9.1: 91 percent / Ti(i-PrO)4; (-)-DET; TBHP / CH2Cl2; decane / 24 h / -20 °C
10.1: 64 percent / NaIO4; RuCl3 / CCl4; acetonitrile; H2O / 0.5 h / 0 °C
11.1: 70 percent / 1-hydroxybenzotriazole hydrate; 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride / CH2Cl2 / 1 h / 25 °C
12.1: HF*pyridine / tetrahydrofuran / 12 h / 25 °C
With
pyridine; 1H-imidazole; titanium(IV) isopropylate; tert.-butylhydroperoxide; ruthenium trichloride; sodium periodate; lithium borohydride; oxalyl dichloride; di-n-butylboryl trifluoromethanesulfonate; diisobutylaluminium hydride; pyridine hydrogenfluoride; dimethyl sulfoxide; (-)-diethyl tartrate; 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine;
In
tetrahydrofuran; tetrachloromethane; decane; dichloromethane; water; N,N-dimethyl-formamide; acetonitrile; benzene;
6.1: Swern oxidation / 9.1: Sharpless asymmetric epoxidation;
DOI:10.1021/jo050625l