Multi-step reaction with 8 steps
1: KOH / ethanol; H2O / 17 h / Ambient temperature; 1.) 2 deg C, 1.5 h, 2.) RT, 17 h
2: 88 percent / NaBH4 / methanol / 2.5 h / 2 - 10 °C
3: 73 percent / conc. HCl / 1 h
4: 1.) Na / 1.) CH3OH, 5 min, 2.) CH3OH, RT, 14 h
5: 1.) n-BuLi / 1.) hexane, THF, -78 deg C, 10 min, 2.) hexane, THF, from -78 deg C to RT, 1 h
6: 80-90percent m-chloroperoxybenzoic acid / CH2Cl2 / 0.17 h / 0 °C
7: diethylamine, methanol / 23 h / 0 °C
8: 60 percent / 2,3-dichloro-5,6-dicyano-1,4-benzoquinone / tetrahydrofuran / 72 h / Ambient temperature
With
hydrogenchloride; methanol; potassium hydroxide; sodium tetrahydroborate; n-butyllithium; sodium; diethylamine; 3-chloro-benzenecarboperoxoic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; water;
DOI:10.1021/jo00344a013