A number of new halogenofluorenes have been prepared and characterized. Chlorination of K-2-fluorenylacetamide and 5-2-(9-oxofluoreny1) acetamide and some of their derivatives has been studied. With excess chlorine Y-2-fluorenylacetamide and 5-2-(7-chlorofluoreny1) acetamide give N-2-(1, 3, 4 (?), 7-tetrachlorofluoren~~ l)-acetamide3 (I), whereas? J-2-(6- chlorofluorenyl)-(LVII), and N-2-(6, 7-dichlorofluorenyl) aretamide (LXJ'III) give K-2-(1, 3, 4 ...