CsSO4F in acetonitrile

lead dioxide; 2,3-dicyano-5,6-dichloro-p-benzoquinone in benzene T=20°C; 24 h;

potassium dichromate; sulfuric acid durch Kochen des entstehenden 2-Methoxy-benzophenon in Eisessigloesung mit 48prozentiger Bromwasserstoffsaeure;

1: 120 °C / Verseifen des Reaktionsprodukts 2: glacial acetic acid 3: sodium; alcohol 4: alcoholic hydrochloric acid 5: sodium; alcohol 6: permanganate; alkali View Scheme

1.1: Jone's reagent 2.1: n-butyllithium; N,N,N',N,-tetramethylethylenediamine / tetrahydrofuran; hexane / 0.05 h / -98 °C / Inert atmosphere 2.2: 2 h / -98 - -60 °C / Inert atmosphere 2.3: Inert atmosphere 3.1: Cl2Ni(1,2-bis(diphenylphosphino)ethane); 1,1-dimethylethylmagnesium chloride / tetrahydrofuran; dichloromethane / 20 °C / Inert atmosphere 3.2: 20 °C / Inert atmosphere 4.1: diisopropyl-carbodiimide / dichloromethane / 24 h / 25 °C / Inert atmosphere View Scheme

1: chloroform; thionyl chloride 2: magnesium; diethyl ether View Scheme

1.1: Jone's reagent 2.1: n-butyllithium; N,N,N',N,-tetramethylethylenediamine / tetrahydrofuran; hexane / 0.05 h / -98 °C / Inert atmosphere 2.2: 2 h / -98 - -60 °C / Inert atmosphere 2.3: Inert atmosphere 3.1: Cl2Ni(1,2-bis(diphenylphosphino)ethane); 1,1-dimethylethylmagnesium chloride / tetrahydrofuran; dichloromethane / 20 °C / Inert atmosphere 3.2: 20 °C / Inert atmosphere 4.1: diisopropyl-carbodiimide / dichloromethane / 24 h / 25 °C / Inert atmosphere View Scheme