in benzene byproducts: (CF3)2C(C6H4)(Cl)(OCOCH2CH2COC2H5); addn. of ethyl succinyl chloride at room temperature; stirring for 8.5 h at 50 ° C;; thin layer chromatography (ethyl acetate:hexane=1:5);;

in benzene byproducts: (CF3)2C(C6H4)(Cl)(OCOC6H4OCH3); inert gas; addn. of p-methoxybenzoyl chloride at room temperature; stirring for 10 h under reflux;; thin layer chromatography (ethyl acetate:hexane=1:5);;