Multi-step reaction with 10 steps
1.1: tetrachloromethane; N-chloro-succinimide / 16 h / 80 °C
2.1: isopentyl nitrite / tetrahydrofuran / 3 h / 20 °C / Reflux
3.1: water; sodium hydroxide / tetrahydrofuran / 48 h / 20 °C
4.1: triethylamine / tetrahydrofuran / 0.33 h / 20 °C
4.2: 18 h / 20 °C
5.1: pyridine; trifluoroacetic anhydride / 1,4-dioxane / 24 h / 20 °C
6.1: pyridine; lithium iodide / 2 h / 20 °C / Reflux
7.1: thionyl chloride / Reflux; Inert atmosphere
8.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 0.5 h / 0 - 20 °C
8.2: 1 h / 20 °C / Inert atmosphere
9.1: tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; caesium carbonate / 1,4-dioxane / 1 h / 140 °C / Inert atmosphere; Sealed tube; Microwave irradiation
10.1: Chiralpak IC / methanol / 0.08 h / Resolution of racemate
With
pyridine; tetrachloromethane; tris-(dibenzylideneacetone)dipalladium(0); N-chloro-succinimide; thionyl chloride; water; sodium hydride; caesium carbonate; triethylamine; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; trifluoroacetic anhydride; sodium hydroxide; lithium iodide; isopentyl nitrite;
In
tetrahydrofuran; 1,4-dioxane; methanol; N,N-dimethyl-formamide; mineral oil;
DOI:10.1021/jm400266t