Multi-step reaction with 8 steps
1: 1) NaH / 1) DMF, 0 deg C, 15 min, 2) 23 deg C, 2h
2: 60percent HOAc / tetrahydrofuran / 5 h / 50 °C
3: NaIO4 / tetrahydrofuran; H2O / 1) 0 deg C, 30 min, 2) 23 deg C, 1h
4: PPh3 / CH2Cl2 / 0 °C
5: 2) 10percent aq. TlOH / 1) Pd(PPh3)4 / 1) THF, 23 deg C, 0.5h, 2) THF, 23 deg C, 10-15 min
7: 1.0M DIBAL / diethyl ether; hexane / 4 h / 23 °C
8: 1) sec-BuLi / 1) THF, cyclohexane, -78 deg C, 30 min, 2) -20 deg C, 4.5h
With
sodium periodate; TlOH; sec.-butyllithium; sodium hydride; diisobutylaluminium hydride; acetic acid; triphenylphosphine;
tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; water;
DOI:10.1021/jo00003a049