Multi-step reaction with 8 steps
1: 94 percent / BH3*THF / tetrahydrofuran / 72 h / Heating
2: 82 percent / PCC / CH2Cl2 / 11 h / 25 °C
3: 1.) NaH / 1.) toluene, 0 deg C, 1 h, 2.) THF, RT, 6 h
4: 79 percent / DIBAL / diethyl ether; toluene / 25 °C
5: 1.) titanium(IV) isopropoxide, (-)-diethyl D-tartrate, 2.) tert-butyl hydroperoxide / 1.) CH2Cl2, -40 deg C, 30 min, 2.) toluene, 0 deg C, 8 h
6: oxalyl chloride / dimethylsulfoxide; CH2Cl2 / 1.5 h / -78 °C
7: tetrahydrofuran; benzene / 12 h / 0 °C
8: 93 percent / NaBH4 / methanol / 6 h / -20 °C
With
titanium(IV) isopropylate; tert.-butylhydroperoxide; sodium tetrahydroborate; borane-THF; oxalyl dichloride; diethyl (2S,3S)-tartrate; sodium hydride; diisobutylaluminium hydride; pyridinium chlorochromate;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; dimethyl sulfoxide; toluene; benzene;
DOI:10.1021/jo00273a009