iodine in methanol; water; benzene methylation of (NaO2CC6H5)2Cr with (CH3)2SO4 in boiling benzene;boiling with CH3OH;react. with I2 to complex iodides;redn. with Na2S2O4 in H2O; chromatographic separation;

iodine in methanol; water; benzene methylation of (NaO2CC6H5)2Cr with (CH3)2SO4 in boiling benzene;boiling with CH3OH;react. with I2 to complex iodides;redn. with Na2S2O4 in H2O;

carbon dioxide in ethanol; hexane; benzene methylation with CH3OH/(CH3)2SO4; boiling; oxidn. with air oxygen, redn. with Na2S2O4; chromy.;

methanol; carbon dioxide in benzene with solid CO2, boiling; chromy.;

at 10E-4-10E-5 Torr, high excess of aromatics, react. container at -196°C, inlets for organic educts heated to let them as vapor. Cr vaporized at ca 1600-1800°C for 60-80 min.; filtrn., evapn. till beginnig of sublimation, solved in benzene, chromy.(Kieselgel, benzene:diethylether=10:1), elem. anal.;

at 10E-4-10E-5 Torr, high excess of aromatics, react. container at -196°C, inlets for organic educts heated to let them as vapor. Cr vaporized at ca 1600-1800°C for 60-80 min.; filtrn., evapn. till beginning of sublimation, solved in benzene, chromy. (Kieselgel, benzene:ether=20:1), elem. anal.;