Multi-step reaction with 7 steps
1.1: sulfuric acid / 1 h / Inert atmosphere; Reflux
2.1: caesium carbonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; tert-butyl carbazate / tris(dibenzylideneacetone)dipalladium(0) chloroform complex / toluene / 90 °C / Inert atmosphere
2.2: 1 h / 20 °C / Inert atmosphere
3.1: sodium hydrogencarbonate / tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere
4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -10 - 0 °C / Inert atmosphere
4.2: 1.33 h / 0 - 20 °C / Inert atmosphere
5.1: N-Bromosuccinimide / ISOPROPYLAMIDE / 1 h / 20 °C / Inert atmosphere
5.2: 2 h / 0 - 20 °C / Inert atmosphere
6.1: ammonia / methanol / 24 h / 80 °C / Inert atmosphere
7.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.17 h / 130 °C / Inert atmosphere; Microwave irradiation
With
N-Bromosuccinimide; tert-butyl carbazate; sulfuric acid; tetrabutyl ammonium fluoride; ammonia; sodium hydrogencarbonate; caesium carbonate; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; lithium hexamethyldisilazane;
tris(dibenzylideneacetone)dipalladium(0) chloroform complex;
In
tetrahydrofuran; methanol; ISOPROPYLAMIDE; toluene;