“…[2] Tetrafluoroterephthalonitrile a is a very important organic intermediate. [5][6][7][8] In continuation of work on developing new MOFs with fluorine-containing organic ligands, recently, we focused on the synthesis of ligand c, which could be obtained via condensation reaction between tetrafluoroterephthalonitrile and ethylenediamine under certain conditions. For example, it can be hydrolyzed and then reduced to form 2,3,5,6-tetrafluoro-1,4benzenedimethanol, which is the key intermediate for the preparation of pesticide tefluthrin.…”