Multi-step reaction with 11 steps
1.1: KH / tetrahydrofuran / 0.33 h / 20 °C
1.2: 97 percent / tetrabutylammonium iodide / tetrahydrofuran / 16 h / 20 °C
2.1: 90 percent / benzyltriethylammonium chloride; TEMPO; KBr / NaOCl / CH2Cl2; aq. NaHCO3; various solvent(s) / 2 h / 0 °C
3.1: [(+)-Ipc]2BOMe / diethyl ether / 1 h / 20 °C
3.2: diethyl ether / 4.5 h / -78 °C
3.3: NaOH; H2O2 / H2O; diethyl ether / 1 h / Heating
4.1: NaHMDS / tetrahydrofuran / 0.5 h / 0 °C
4.2: tetrahydrofuran / 0.25 h / 20 °C
5.1: 92.8 g / IBr / toluene; CH2Cl2 / 1.5 h / -78 °C
6.1: 83 percent / K2CO3 / methanol / 2 h
7.1: 90 percent / imidazole / tetrahydrofuran / 1 h
8.1: t-BuLi / diethyl ether; pentane / 0.83 h / -78 - -45 °C
8.2: diethyl ether; pentane / 4 h / -45 - -20 °C
8.3: 58 percent / HMPA; n-BuLi / hexane; diethyl ether; tetrahydrofuran / 15 h / -20 °C
9.1: Hg(ClO4)2*4H2O / acetonitrile; H2O; CH2Cl2 / 0.17 h / 0 °C
9.2: 83 percent / HClO4 / acetonitrile; H2O; CH2Cl2 / 0.08 h
10.1: 90 percent / pyridine; 4-DMAP / CH2Cl2 / 13 h
11.1: 100 percent / 2,6-lutidine / CH2Cl2 / -78 - 0 °C
With
pyridine; 1H-imidazole; 2,6-dimethylpyridine; dmap; 2,2,6,6-tetramethyl-piperidine-N-oxyl; mercury(II) perchlorate; [(+)-Ipc]2BOMe; N-benzyl-N,N,N-triethylammonium chloride; tert.-butyl lithium; sodium hexamethyldisilazane; iodine(I) bromide; potassium hydride; potassium carbonate; potassium bromide;
sodium hypochlorite;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; sodium hydrogencarbonate; toluene; acetonitrile; pentane;
DOI:10.1021/ol017273z