Multi-step reaction with 10 steps
1.1: titanium tetrachloride / dichloromethane / 120 h / -78 - -50 °C / Inert atmosphere
2.1: 2,6-dimethylpyridine / dichloromethane / 0.25 h / 0 - 20 °C / Inert atmosphere
3.1: lithium borohydride / methanol; diethyl ether / 4 h / 0 - 20 °C / Inert atmosphere
4.1: methyltriphenoxyphosphonium iodide / N,N-dimethyl-formamide / 0.5 h / 0 - 20 °C / Inert atmosphere
5.1: sodium hexamethyldisilazane / tetrahydrofuran / 1 h / -80 °C / Inert atmosphere
5.2: 18 h / -80 - -50 °C / Inert atmosphere
6.1: lithium borohydride / methanol; diethyl ether / 4 h / 0 °C / Inert atmosphere
7.1: pyridine / dichloromethane / 0.08 h / -78 °C
7.2: 0.58 h / -78 - 20 °C / Inert atmosphere
8.1: 1,1,1,3,3,3-hexamethyldisilazane alkali metal salt / tetrahydrofuran / 1 h / -80 °C / Inert atmosphere
8.2: 18 h / -80 - -50 °C / Inert atmosphere
9.1: dihydrogen peroxide; lithium hydroxide monohydrate; water / tetrahydrofuran / 15 h / 0 - 20 °C / Inert atmosphere
10.1: dicyclohexyl-carbodiimide / ethyl acetate / 0.5 h / 0 °C / Inert atmosphere
10.2: 9.5 h / 0 - 20 °C / Inert atmosphere
With
pyridine; 2,6-dimethylpyridine; lithium borohydride; lithium hydroxide monohydrate; methyltriphenoxyphosphonium iodide; water; dihydrogen peroxide; sodium hexamethyldisilazane; titanium tetrachloride; dicyclohexyl-carbodiimide;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; ethyl acetate; N,N-dimethyl-formamide;
1.1: |Mukaiyama Aldol Addition;
DOI:10.1002/chem.201201879
DOI:10.1002/chem.201201879