Multi-step reaction with 12 steps
1.1: 94 percent / NaOEt / ethanol / 7 h / Heating
2.1: Et3N / CH2Cl2 / 1 h / 20 °C
3.1: NaI / butan-2-one / 2 h / Heating
4.1: NaH / dimethylformamide / 0.5 h
4.2: dimethylformamide / 3 h
5.1: KOH / ethanol / 6 h / 50 °C
6.1: Et3N / tetrahydrofuran / 0.25 h / -5 °C
7.1: aq. NaN3 / tetrahydrofuran / 1 h / 0 °C
8.1: benzene / 1 h / Heating
9.1: benzene / 7 h / Heating
10.1: LiBH4 / tetrahydrofuran / 3 h / Heating
11.1: 5 N aq. KOH / tetrahydrofuran; methanol / 13 h / Heating
12.1: aq. KHCO3 / ethyl acetate / 0.25 h / 20 °C
With
potassium hydroxide; lithium borohydride; sodium azide; sodium ethanolate; sodium hydride; potassium hydrogencarbonate; triethylamine; sodium iodide;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide; butanone; benzene;
1.1: Alkylation / 2.1: mesylation / 3.1: Iodination / 4.1: Metallation / 4.2: Alkylation / 5.1: Hydrolysis / 6.1: Acylation / 7.1: Substitution / 8.1: Curtius rearrangement / 9.1: Addition / 10.1: Reduction / 11.1: Hydrolysis / 12.1: Acylation;
DOI:10.1021/jm000173z