Multi-step reaction with 12 steps
1.1: 74 percent / DIBAL-H / CH2Cl2 / 0.67 h / -78 °C
2.1: 70 percent / PPh3; DIAD / toluene / 16 h / 0 - 25 °C
3.1: 88 percent / 15-crown-5; NaI; BBr3 / CH2Cl2 / 1 h / -30 °C
4.1: 95 percent / 2,6-lutidine / CH2Cl2 / 4 h / -78 - 20 °C
5.1: 95 percent / K2CO3; methanol / 0.17 h / 20 °C
6.1: 93 percent / TfOH / diethyl ether / 4 h / 20 °C
7.1: 95 percent / HCl / methanol / 0.17 h / 20 °C
8.1: 93 percent / PCC / CH2Cl2 / 4 h
9.1: LHMDS / tetrahydrofuran / -78 - 25 °C
9.2: tetrahydrofuran / 18 h / -78 - 25 °C
10.1: 1.19 g / Hg(OAc)2; aq. KI / tetrahydrofuran; H2O / 0.5 h
11.1: 75 percent / diethyl ether / 4 h / -78 °C
12.1: 95 percent / aq. LiOH*H2O / methanol; tetrahydrofuran / 6 h / Heating
With
2,6-dimethylpyridine; hydrogenchloride; methanol; lithium hydroxide; 15-crown-5; trifluorormethanesulfonic acid; di-isopropyl azodicarboxylate; mercury(II) diacetate; boron tribromide; diisobutylaluminium hydride; potassium carbonate; triphenylphosphine; pyridinium chlorochromate; potassium iodide; sodium iodide; lithium hexamethyldisilazane;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; toluene;
2.1: Mitsunobu reaction;
DOI:10.1021/ja037957x