ethene; palladium on activated charcoal in acetonitrile T=80°C; 24 h;

1: bromobenzene With iodine; magnesium in tetrahydrofuran T=20°C; 6 h; Inert atmosphereSchlenk technique; 2: (1H-benzo[d][1,2,3]triazol-1-yl)(3,5-di-tert-butyl-2-hydroxyphenyl)methanone in tetrahydrofuran T=23°C; 17 h; Inert atmosphereSchlenk technique; 3: With water; ammonium chloride in tetrahydrofuran Cooling with iceInert atmosphereSchlenk technique;

1: 1.) Et2O 2: 35 percent / CrO3 View Scheme

sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride in toluene

1: 35 percent / methanol / 72 h 2: 70 percent / diethyl ether 3: 71 percent / 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) / dioxane / 16 h / Ambient temperature View Scheme

1: 70 percent / diethyl ether 2: 71 percent / 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) / dioxane / 16 h / Ambient temperature View Scheme

cobalt(II)salen in dichloromethane T=25°C; 0.333333 h; other 4-alkenyl-2,6-di-tert-butylphenols and 2-alkenyl-4,6-di-tert-butylphenols; Mechanism;

1: NaOH / H2O / 1 h / Heating 2: NaOH; potassium hexacyanoferrate (III) / H2O; toluene / 5 h / 70 °C View Scheme

1.1: thionyl chloride / dichloromethane / 0.75 h / 20 °C / |Inert atmosphere; |Schlenk technique 1.2: 24 h / 20 °C / |Inert atmosphere; |Schlenk technique 2.1: magnesium; iodine / tetrahydrofuran / 6 h / 20 °C / |Inert atmosphere; |Schlenk technique 2.2: 17 h / 23 °C / |Inert atmosphere; |Schlenk technique 2.3: |Cooling with ice; |Inert atmosphere; |Schlenk technique View Scheme

in benzene Irradiation;