Multi-step reaction with 10 steps
1: oxalyl dichloride / N,N-dimethyl-formamide / dichloromethane / 2 h / 0 - 20 °C / Inert atmosphere
2: triethylamine / dichloromethane / 16 h / 0 - 20 °C
3: tetrahydrofuran / 4 h / -10 - 0 °C / Inert atmosphere
4: hydrogenchloride / dichloromethane; diethyl ether / 1 h / 20 °C
5: sulfuric acid / 16 h / 95 °C
6: hydroxylamine hydrochloride; sodium acetate / methanol / 16 h / 20 °C / Inert atmosphere
7: polyphosphoric acid / 16 h / 80 °C / Inert atmosphere
8: caesium carbonate / 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane / 15 h / 100 °C / Inert atmosphere
9: 1,2-dimethoxyethane; water / 0.5 h / 130 °C / microwave irradiation
10: water; lithium hydroxide / isopropyl alcohol; tetrahydrofuran / 2 h / 30 °C
With
hydrogenchloride; oxalyl dichloride; sulfuric acid; hydroxylamine hydrochloride; water; sodium acetate; caesium carbonate; triethylamine; lithium hydroxide;
tris-(dibenzylideneacetone)dipalladium(0); N,N-dimethyl-formamide; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene;
In
tetrahydrofuran; 1,4-dioxane; methanol; 1,2-dimethoxyethane; diethyl ether; dichloromethane; water; isopropyl alcohol;