Multi-step reaction with 8 steps
1.1: sodium hydrogencarbonate / dichloromethane; water / 2.5 h / 0 - 23 °C
2.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / Inert atmosphere; Heating
3.1: n-butyllithium / tetrahydrofuran; hexane / 0.75 h / 0 °C
3.2: 0.75 h / 50 - 55 °C
4.1: methoxybenzene; trifluorormethanesulfonic acid; trifluoroacetic acid / 18 h / 70 °C
5.1: tris(dibenzylideneacetone)dipalladium(0) chloroform complex; sodium t-butanolate; tert-butyl XPhos / toluene / 19 h / 105 °C / Inert atmosphere; Sealed tube
6.1: Lawessons reagent / 1,4-dioxane / 2.5 h / 80 °C
7.1: hydrogenchloride / 1,4-dioxane; water / 0.5 h / 23 °C
8.1: HATU; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / 23 °C
8.2: 2 h / 23 °C
With
Lawessons reagent; tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; hydrogenchloride; tris(dibenzylideneacetone)dipalladium(0) chloroform complex; n-butyllithium; trifluorormethanesulfonic acid; sodium hydrogencarbonate; methoxybenzene; N-ethyl-N,N-diisopropylamine; HATU; trifluoroacetic acid; sodium t-butanolate; tert-butyl XPhos;
In
tetrahydrofuran; 1,4-dioxane; hexane; dichloromethane; water; toluene;
DOI:10.1016/j.bmcl.2013.05.003