4,5,6,7-tetrachlorospiro[1,3-benzodioxole-2,9'-fluorene]

N,N-dimethyl-9H,9'H-[9,9'-bifluoren]-9-amine

2,3-dinitro-2-phenylspiro[cyclopropane-1,9'-fluorene]

9-dimethoxyphosphoryl-9H-fluorene

1-羟基-9-芴酮