BY ET h1CBEE AND THEODORE 31. BURTON KECEIVED SEPTEMBER 4, 1951 ... The direct bromination of l,l,l-trifluoropropanone was investigated using both acid and base catalysis. The preparatiori of 3-brorno-l,l,l-tr~uoropropanone and of 3,3-dibrorno-l,l,l-trifluoropropanone was more successful using acid catalysis, ... This ion reacts practically instantaneously with bromine to form a brominated ketone. With the very strongly electronegative trifluoromethyl group ...
