Multi-step reaction with 10 steps
1.1: n-butyllithium / tetrahydrofuran / 0.33 h / -90 °C / Inert atmosphere
1.2: -78 - 20 °C / Inert atmosphere
2.1: tetrahydrofuran / 0.5 h / -78 °C / Inert atmosphere
2.2: 4 h / 20 °C / Inert atmosphere
3.1: dihydrogen peroxide; sodium hydroxide / methanol; water / 0 - 20 °C / Inert atmosphere
4.1: sodium hydroxide / methanol; water / 2 h / 20 °C / Inert atmosphere
4.2: 20 °C / Inert atmosphere
4.3: pH 3 - 4 / Inert atmosphere
5.1: diethyl ether; ethyl acetate / 0.17 h / 20 °C / Inert atmosphere
6.1: titanium(IV) dichlorodiisopropylate / tetrahydrofuran / 0 - 15 °C / Inert atmosphere
7.1: diisobutylaluminium hydride / hexane; toluene / -90 - -78 °C / Inert atmosphere
8.1: n-butyllithium / tetrahydrofuran / -78 - 0 °C / Inert atmosphere
8.2: Inert atmosphere
9.1: Co(II) bis(2,2,6,6-tetramethylheptane-3,5-dienoate); oxygen / 1,2-dichloro-ethane / 20 °C / 760.05 Torr
10.1: amberlyst-15 / dichloromethane / 2 h / 20 °C / Inert atmosphere
With
n-butyllithium; titanium(IV) dichlorodiisopropylate; Co(II) bis(2,2,6,6-tetramethylheptane-3,5-dienoate); dihydrogen peroxide; oxygen; diisobutylaluminium hydride; sodium hydroxide;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; water; ethyl acetate; 1,2-dichloro-ethane; toluene;
DOI:10.1055/s-0030-1260959