1: cyclohexyl monochloride With magnesium; ethylene dibromide in diethyl ether T=41°C; 2 h; Heating / reflux; 2: With phosphorus trichoride in diethyl ether; tert-butyl methyl ether T=-17 - 20°C; Heating / reflux; 3: carbon disulfide in diethyl ether; tert-butyl methyl ether Product distribution / selectivity;

in ethanol T=78 - 79°C; Product distribution / selectivity;