The synthetic utility of N-fluoro-2, 4-dinitro-imidazole NF-2, 4-DNF, a recently introduced NF- Fluorinating agent, has been tested for direct one-pot fluorination of several classes of polycyclic aromatic hydrocarbons, PAHs, namely pyrene, crowded alkyl (cycloalkyl)- pyrenes; hexahydro-and tetrahydro-pyrene; benzo [a] anthracene; benzo [a]—and benzo [e] pyrene; perylene; 2, 7-di-tert-butylphenanthrene; chrysene; 9-methylhandracene and ...