Manufacture of aromatic diazonium fluorides and corresponding aromatic fluorides

Claim 1

IN A PROCESS FOR MAKING CYCLIC FLUORIDES FROM PRIMARY CYCLIC MONO-AMINES WITH MINIMUM FORMATION OF AROMATIC CHLORIDES, THE STEP OF DISSOLVING IN LIQUID ANHYDROUS HYDROGEN FLUORIDE A PRIMARY CYCLIC MONO-AMINE HAVING SIX AND ONLY SIX NUCLEAR ATOMS, AT LEAST FIVE OF WHICH ARE CARBON AND ONE OF WHICH IS SELECTED FROM THE CLASS CONSISTING OF CARBON AND NITROGEN, AND THREE NUCLEAR DOUBLE BONDS, THE AMINO GROUP BEING EXTRA-NUCLEAR AND ATTACHED TO NUCLEAR CARBON, AND PASSING INTO SUCH SOLUTION GASEOUS NOCL IN A TEMPERATURE RANGE FROM 15* C. TO 50* C. WHEREBY TO CONVERT THE AMINO GROUP OF SUCH PRIMARY CYCLIC AMINE TO A DIAZONIUM FLUORIDE GROUP THE TEMPERATURE OF THE REACTION MIXTURE BEING MAINTAINED BETWEEN 15* C. AND 50* C. UNTIL THE DIAZOTIZATION REACTION IS SUBSTANTIALLY COMPLETE AND BETWEEN 20* C. AND 50* C. THEREAFTER UNTIL THE DECOMPOSITION OF THE DIAZONIUM FLUORIDE IS SUBSTANTIALLY COMPLETE.