Multi-step reaction with 12 steps
1.1: 78 percent / CrO3*pyridine / CH2Cl2 / 40 h / 20 °C
2.1: 83 percent / diisopropylamine; BuLi; HMPA / tetrahydrofuran; hexane / 1.3 h / -20 °C
3.1: Li; t-BuOH / tetrahydrofuran; aq. NH3 / -78 °C
4.1: aq. HF / acetonitrile; methanol / 3 h / 20 °C
4.2: 0.263 g / pyridine / 2 h / 20 °C
5.1: 45 percent / HMDS / CH2Cl2 / 1.5 h / 20 °C
6.1: 0.247 g / MgI2; HMDS / toluene / 2 h / 20 °C
7.1: RhCl3*H2O; K2CO3 / ethanol / 2 h / 60 °C
8.1: 94 percent / KHMDS / tetrahydrofuran; toluene / 1 h / -78 °C
9.1: O3 / CH2Cl2 / -78 °C
9.2: 35 percent / DIBALH / CH2Cl2
10.1: 85 percent / Pd(OAc)2; PPh3; Et3N / methanol; dimethylformamide / 3.5 h
11.1: 5.6 mg / DIBAL-H / diethyl ether; hexane / -78 - 20 °C
12.1: 55 percent / (COCl)2; DMSO
With
N,N,N,N,N,N-hexamethylphosphoric triamide; palladium diacetate; rhodium(III) chloride; n-butyllithium; oxalyl dichloride; chromium trioxide-pyridine complex; hydrogen fluoride; lithium; potassium hexamethylsilazane; diisobutylaluminium hydride; potassium carbonate; ozone; dimethyl sulfoxide; triethylamine; diisopropylamine; triphenylphosphine; 1,1,1,3,3,3-hexamethyl-disilazane; magnesium iodide; tert-butyl alcohol;
In
tetrahydrofuran; methanol; ammonium hydroxide; diethyl ether; ethanol; hexane; dichloromethane; N,N-dimethyl-formamide; toluene; acetonitrile;
DOI:10.1021/jo0015568