in xylene 0.333333 h; Heating;

[Rh2(trifluoroacetate)4] in toluene T=95°C; 0.333333 h; Microwave irradiation;

1: 63 percent / sodium methoxide / methanol / 4 h / -10 °C 2: 85 percent / Rh2(pbf)4 / toluene / 16 h / 60 °C View Scheme

hydrogenchloride T=20°C;

1: 76 percent / 5 h / 90 °C 2: 72 percent / AlCl3 / CH2Cl2 / 24 h / 20 °C View Scheme

1: K2CO3 / acetone / 12 h / 60 °C 2: 76 percent / 5 h / 90 °C 3: 72 percent / AlCl3 / CH2Cl2 / 24 h / 20 °C View Scheme

in methanol; hexane; toluene T=20°C; 3 h;

1.1: bromo-dimethylsulfonium bromide / dichloromethane / 1 h / 20 °C / |Inert atmosphere 1.2: -78 - 20 °C / |Inert atmosphere 2.1: acetic acid; iron / ethanol / 0.08 h / 20 °C / |Reflux 3.1: potassium carbonate; 1,4-diaza-bicyclo[2.2.2]octane; copper(l) iodide / 1,4-dioxane / 3 h / |Schlenk technique; |Inert atmosphere; |Reflux View Scheme

1: methanol / |Reflux 2: methanol; water / 2.5 h / |Reflux; |Inert atmosphere; |Acidic conditions View Scheme