methyl 2-(9H-fluoren-9-ylsulfanyl)acetate

9H-fluoren-9-yl selenocyanate

2-bromo-2-methyl-1-phenylbutane-1,3-dione

2-(9H-fluoren-9-yl)-1-phenylbutane-1,3-dione

2-(9-fluorenyl)-2-methyl-1-phenylbutane-1,3-dione