Multi-step reaction with 9 steps
1.1: 94 percent / tetrahydrofuran; hexane / 4 h / 20 °C
2.1: 93 percent / H2 / Pd/C / ethanol / 24 h / 3102.89 Torr
3.1: n-BuLi; TMEDA / diethyl ether; hexane / 2 h / 0 °C
3.2: 86 percent / diethyl ether; hexane / 3 h / 20 °C
4.1: 95 percent / NaBH4 / tetrahydrofuran / 1.5 h / 20 °C
5.1: 85 percent / imidazole / dimethylformamide / 36 h / 20 °C
6.1: sec-BuLi / tetrahydrofuran; cyclohexane; hexane / 2 h / -78 °C
6.2: 55 percent / N-iodosuccinimide / tetrahydrofuran; cyclohexane; hexane / 3 h / -78 °C
7.1: n-BuLi / tetrahydrofuran; hexane / 2 h / -78 °C
7.2: 90 percent / tetrahydrofuran; hexane / 12 h / -78 - 20 °C
8.1: 100 percent / TBAF / tetrahydrofuran / 12 h / 0 °C
9.1: 92 percent / Dess-Martin periodinane / CH2Cl2 / 1 h
With
1H-imidazole; sodium tetrahydroborate; n-butyllithium; N,N,N,N,-tetramethylethylenediamine; tetrabutyl ammonium fluoride; hydrogen; sec.-butyllithium; Dess-Martin periodane;
palladium on activated charcoal;
In
tetrahydrofuran; diethyl ether; ethanol; hexane; dichloromethane; cyclohexane; N,N-dimethyl-formamide;
1.1: Wittig reaction;
DOI:10.1021/jo061104g