Multi-step reaction with 11 steps
1.1: HBr; Br2 / diethyl ether / 0.75 h / 20 °C
2.1: 3.7 g / t-BuOK; 18-crown-6 / tetrahydrofuran / -78 - 20 °C
3.1: 45 percent / HCl / CH2Cl2 / 72 h
4.1: 1.16 g / potassium azodiformate; acetic acid / methanol / 3.5 h
5.1: KOH / H2O / 48 h
5.2: 53 percent / HCl / H2O / 50 h / Heating
6.1: diisopropylamine; n-BuLi / tetrahydrofuran / -78 °C
6.2: 1.01 g / tetrahydrofuran / 48 h
7.1: 0.65 g / tosyl azide; triethylamine / CH2Cl2
8.1: 78 percent / 0.67 h / Irradiation
9.1: 80 percent / DIBAL-H / toluene; hexane / 2 h / -78 °C
10.1: diethyl ether / 0.17 h / 20 °C
11.1: 80 mg / Jones reagent / acetone / 0.25 h
With
hydrogenchloride; potassium hydroxide; n-butyllithium; 4-toluenesulfonyl azide; jones reagent; 18-crown-6 ether; potassium tert-butylate; hydrogen bromide; bromine; potassium diazodicarboxylate; diisobutylaluminium hydride; acetic acid; triethylamine; diisopropylamine;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; water; acetone; toluene;
3.1: Diels-Alder reaction / 5.2: Nef reaction / 8.1: Wolff rearrangement;
DOI:10.1021/jo026187p