Multi-step reaction with 12 steps
1.1: K2CO3 / acetone / 24 h / Heating
2.1: 4.30 g / imidazole / dimethylformamide / 24 h
3.1: 85 percent / (o-tol)3P / trans-ClBnPd(PPh3)2 / dimethylformamide / 24 h / 100 °C
4.1: DIBAL / CH2Cl2 / 3 h / -78 °C
5.1: 4.65 g / (COCl)2; DMSO; Et3N / CH2Cl2 / -78 - 20 °C
6.1: t-butyllithium / diethyl ether; pentane / 0.58 h / -78 °C
6.2: diethyl ether; pentane / -78 °C
7.1: 1.23 g / Dess-Martin periodinane / CH2Cl2 / 0.08 h
8.1: 79 percent / TBAF / tetrahydrofuran / 10 h / 0 °C
9.1: 86 percent / VO(acac)2; TBHP / toluene; benzene / 2 h
10.1: 97 percent / Dess-Martin periodinane / CH2Cl2 / 0.08 h
11.1: 44 percent / acetic acid / tetrahydrofuran; H2O / 3 h / Heating
12.1: H2 / Pd/C / ethyl acetate / 5 h / 760.05 Torr
With
1H-imidazole; tert.-butylhydroperoxide; oxalyl dichloride; bis(acetylacetonate)oxovanadium; tetrabutyl ammonium fluoride; hydrogen; tert.-butyl lithium; diisobutylaluminium hydride; potassium carbonate; Dess-Martin periodane; acetic acid; dimethyl sulfoxide; triethylamine; tris-(o-tolyl)phosphine;
palladium on activated charcoal; trans-benzyl(chloro)-bis(triphenylphosphine)palladium(II);
In
tetrahydrofuran; diethyl ether; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide; acetone; toluene; pentane; benzene;
3.1: Stille cross-coupling / 7.1: Dess-Martin oxidation / 10.1: Dess-Martin oxidation;
DOI:10.1021/ol026382q