Multi-step reaction with 17 steps
1.1: NaH / tetrahydrofuran; various solvent(s) / -78 - 20 °C
1.2: tetrahydrofuran; various solvent(s) / 1 h / 0 °C
1.3: 1.68 g / various solvents / -78 - 20 °C
2.1: 97 percent / diisobutylaluminum hydride / hexane; CH2Cl2 / 1 h / -78 °C
3.1: 94 percent / 4-(dimethylamino)pyridine; pyridine / 18 h / Heating
4.1: 82 percent / HF*pyridine complex; pyridine / tetrahydrofuran / 20 °C
5.1: Dess-Martin periodinane / CH2Cl2 / 1 h
6.1: NaH2PO4*H2O; NaClO2; 2-methyl-2-butene / tetrahydrofuran; H2O / 2 h
7.1: 0.37 g / Et3N; 4-(dimethylamino)pyridine; DCC / CH2Cl2 / 0 - 20 °C
8.1: n-BuLi / tetrahydrofuran; hexane / -78 - 0 °C
8.2: 98 percent / tetrahydrofuran; hexane / -78 - 0 °C
9.1: 87 percent / i-PrOH / (S,S)-Noyori catalyst / 12 h
10.1: 90 percent / hydrogen / Lindlar catalyst / toluene / 1 h
11.1: 100 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
12.1: 84 percent / DDQ; H2O / CH2Cl2 / 1 h
13.1: 94 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
14.1: 66 percent / HF*pyridine complex; pyridine / tetrahydrofuran / 48 h / 0 °C
15.1: Dess-Martin periodinane / CH2Cl2 / 1 h
16.1: activated Ba(OH)2 / tetrahydrofuran / 0.5 h / 20 °C
16.2: 2.04 g / tetrahydrofuran; H2O / 12 h
17.1: 76 percent / NiCl2*6H2O; NaBH4 / methanol; tetrahydrofuran / 0 °C
With
pyridine; 2,6-dimethylpyridine; dmap; barium dihydroxide; sodium chlorite; sodium tetrahydroborate; sodium dihydrogenphosphate; n-butyllithium; 2-methyl-but-2-ene; water; hydrogen; sodium hydride; diisobutylaluminium hydride; Dess-Martin periodane; pyridine hydrogenfluoride; triethylamine; dicyclohexyl-carbodiimide; isopropyl alcohol; 2,3-dicyano-5,6-dichloro-p-benzoquinone; nickel dichloride;
Lindlar's catalyst; (S,S)-Noyori catalyst;
In
tetrahydrofuran; methanol; hexane; dichloromethane; water; toluene;
1.2: Wadsworth-Horner-Emmons reaction / 5.1: Dess-Martin oxidation / 15.1: Dess-Martin oxidation / 16.2: Horner-Wadsworth-Emmons reaction;
DOI:10.1016/j.tet.2007.05.033