Multi-step reaction with 8 steps
1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / ethanol / 96 h / Inert atmosphere; Reflux
2.1: trichlorophosphate / 1.5 h / Reflux
3.1: N,N-dimethyl-formamide / 1.5 h / 80 °C / Inert atmosphere
4.1: n-butyllithium / tetrahydrofuran; hexanes / 1 h / -78 °C / Inert atmosphere
4.2: 1 h / -78 °C / Inert atmosphere
4.3: 20 °C / Inert atmosphere
5.1: potassium phosphate / tetrakis(triphenylphosphine) palladium(0) / N,N-dimethyl-formamide; water / 1.5 h / 90 °C / Inert atmosphere
6.1: Oxone / water; tetrahydrofuran; methanol / 20 - 50 °C
7.1: toluene / 2 h / 100 °C / Sealed tube
8.1: trifluoroacetic acid / dichloromethane / 1 h / 20 °C
With
Oxone; potassium phosphate; n-butyllithium; 1,8-diazabicyclo[5.4.0]undec-7-ene; trifluoroacetic acid; trichlorophosphate;
tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; methanol; hexanes; ethanol; dichloromethane; water; N,N-dimethyl-formamide; toluene;