pyridinium chlorochromate in dichloromethane 1.5 h; Ambient temperature;

1: tert-butyl hypobromite / CCl4 / 4.5 h / 25 - 30 °C 2: 300 mg / H2O / 72 h / Heating 3: 90 percent / pyridinium chlorochromate / CH2Cl2 / 1.5 h / Ambient temperature View Scheme

chromoyl diacetate in acetic acid a) 10 deg C, 10 h, b) RT, overnight; Yield given. Further byproducts given. Yields of byproduct given;

in acetic acid a) 10 deg C, 10 h, b) RT, overnight; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;

in acetic acid a) 10 deg C, 10 h, b) RT, overnight; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;

in acetic acid a) 10 deg C, 10 h, b) RT, overnight; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;

1H-imidazole; Mn(TDCPP)Cl; dihydrogen peroxide in dichloromethane; acetonitrile 5 h; var. times, var. Mn(III) porphyrin complexes as catalyst, also with ammonium acetate as cocatalyst; also for methyl dehydroabietate; Product distribution;

in water T=30°C; 168 h; culture broth containing Aspergillus niger, pH 5.3; Product distribution;

1: 92 percent / NaBH4 / methanol / a) RT, 2 h, b) reflux, 3 h 2: 82 percent / iodine, iodosylbenzene / cyclohexane / 1.5 h / 40 - 45 °C 3: 259 mg / chromyl acetate / acetic anhydride / a) 10 deg C, 10 h, b) RT, overnight 4: 94 percent / LAH / diethyl ether / 5 h / Heating 5: 241 mg / pyridine / 5 h / Ambient temperature 6: 86 percent / pyridinium chlorochromate / CH2Cl2 / 2 h / Ambient temperature 7: 20 percent / HCl / benzene / 4 h / 50 °C View Scheme

1,2-benzenedicarboxylic acid in water Title compound not separated from byproducts;