Multi-step reaction with 6 steps
1.1: 1,1,1,3,3,3-hexamethyl-disilazane; acetic acid / 16 h / 70 °C / Inert atmosphere
2.1: sulfur; sodium hydrogencarbonate; water / tetrahydrofuran / 0.75 h / 35 °C / Inert atmosphere
3.1: tin(IV) chloride / toluene / 3.5 h / 20 °C / Reflux
3.2: 20 °C
4.1: N-Bromosuccinimide / dichloromethane / 0.75 h / 20 °C
5.1: caesium carbonate / 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane / 6 h / 110 °C
6.1: sodium t-butanolate / tetrahydrofuran / 3.75 h / 20 °C
With
N-Bromosuccinimide; water; tin(IV) chloride; sodium hydrogencarbonate; caesium carbonate; sulfur; acetic acid; 1,1,1,3,3,3-hexamethyl-disilazane; sodium t-butanolate;
tris-(dibenzylideneacetone)dipalladium(0); 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene;
In
tetrahydrofuran; 1,4-dioxane; dichloromethane; toluene;