Multi-step reaction with 9 steps
1.1: NaH / dimethylformamide / 3 h / 20 °C
2.1: 1.98 g / acetyl chloride / methanol; CH2Cl2 / 0.17 h / 20 °C
3.1: Bu2SnO / toluene / 2.5 h / Heating
3.2: 71 percent / CsF / dimethylformamide / 16 h / 20 °C
4.1: NaH / dimethylformamide / 3 h / 20 °C
5.1: 1.37 g / acetyl chloride / methanol; CH2Cl2 / 2 h / 20 °C
6.1: Bu2SnO / toluene / 2.5 h / Heating
6.2: 94 percent / CsF; NaI / dimethylformamide / 17 h / -10 - 20 °C
7.1: 2.2 g / DMAP; DCC / CH2Cl2 / 24 h / 20 °C
8.1: 94 percent / acetic acid; NaOAc / PdCl2 / H2O / 18 h / 20 °C
9.1: NaH / dimethylformamide / 3 h / 20 °C
9.2: silver triflate; hafnocene dichloride; molecular sieves 4 Angstroem / diethyl ether / -15 - 20 °C
9.3: 0.53 g / acetic acid; NaOAc / PdCl2 / H2O / 18 h / 20 °C
With
dmap; sodium acetate; sodium hydride; di(n-butyl)tin oxide; acetic acid; acetyl chloride; dicyclohexyl-carbodiimide;
palladium dichloride;
In
methanol; dichloromethane; water; N,N-dimethyl-formamide; toluene;
DOI:10.1021/jo034213t