Multi-step reaction with 10 steps
1.1: water / 2 h / 90 °C / Inert atmosphere
2.1: tert-butylhypochlorite; sodium hydroxide / propan-1-ol; water / 0.08 h / Inert atmosphere
2.2: 2 h / Inert atmosphere
3.1: 1H-imidazole / N,N-dimethyl-formamide / 12 h / 20 °C / Inert atmosphere
4.1: 5%-palladium/activated carbon; hydrogen / methanol / 12 h / 20 °C / Inert atmosphere
5.1: N-benzyl-trimethylammonium hydroxide / 8 h / Reflux; Inert atmosphere
6.1: lithium borohydride / methanol; diethyl ether / 4 h / 20 °C / Inert atmosphere
7.1: ytterbium(III) triflate / dichloromethane / 8 h / Inert atmosphere; Reflux
8.1: triethylamine / dichloromethane / 12 h / 0 - 20 °C / Inert atmosphere
9.1: sodium tetrahydroborate / methanol / 0.5 h / 0 °C / Inert atmosphere
10.1: pyridinium p-toluenesulfonate / acetonitrile / 1 h / Inert atmosphere; Reflux
With
1H-imidazole; sodium tetrahydroborate; lithium borohydride; tert-butylhypochlorite; 5%-palladium/activated carbon; hydrogen; pyridinium p-toluenesulfonate; N-benzyl-trimethylammonium hydroxide; triethylamine; sodium hydroxide; ytterbium(III) triflate;
In
methanol; propan-1-ol; diethyl ether; dichloromethane; water; N,N-dimethyl-formamide; acetonitrile;
5.1: Michael reaction;
DOI:10.1039/c1ob06320k