Multi-step reaction with 8 steps
1: EtONa / ethanol / 4.5 h / Ambient temperature
2: NH4OAc, Cu(OAc)2 / acetic acid / 24 h / Heating
3: 22 percent / LiAlH4 / tetrahydrofuran / 6 h / Ambient temperature
4: oxalyl chloride, DMSO / CH2Cl2; tetrahydrofuran / 0.25 h / -78 °C
5: triphenylphosphine / CH2Cl2 / 0.42 h / Ambient temperature
6: 1.) n-BuLi / 1.) THF, hexane, -78 deg C, 50 min, 2.) THF, hexane, -78 deg C, 30 min
7: HOAc, tetra-n-butylammonium fluoride / tetrahydrofuran / 18 h / Ambient temperature
8: 1N aq. NaOH / dioxane / 18 h / Ambient temperature
With
sodium hydroxide; lithium aluminium tetrahydride; n-butyllithium; copper diacetate; oxalyl dichloride; ammonium acetate; tetrabutyl ammonium fluoride; sodium ethanolate; acetic acid; dimethyl sulfoxide; triphenylphosphine;
In
tetrahydrofuran; 1,4-dioxane; ethanol; dichloromethane; acetic acid;
DOI:10.1021/jm00113a019