Multi-step reaction with 8 steps
1.1: trichlorophosphate / 2 h / 100 °C
1.2: Cooling with ice
2.1: sodium carbonate / triphenylphosphine; palladium diacetate / 1,2-dimethoxyethane; water / 4 h / Reflux
3.1: sodium t-butanolate / palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl / 1,4-dioxane / 90 °C / Inert atmosphere
4.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 1 h / 5 °C / Inert atmosphere
4.2: 5 - 20 °C / Inert atmosphere
5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 20 °C
5.2: Cooling with ice
6.1: triethylamine / dichloromethane / 1 h / 5 °C / Inert atmosphere
7.1: sodium hydride / n-heptane; ISOPROPYLAMIDE / 7 h / 0 - 20 °C
8.1: trifluoroacetic acid / dichloromethane / 19 h / 20 - 50 °C
With
tetrabutyl ammonium fluoride; sodium hydride; sodium carbonate; triethylamine; trifluoroacetic acid; sodium t-butanolate; trichlorophosphate;
palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; triphenylphosphine;
In
tetrahydrofuran; 1,4-dioxane; 1,2-dimethoxyethane; n-heptane; dichloromethane; ISOPROPYLAMIDE; water; N,N-dimethyl-formamide; mineral oil;