| abstract |
Aromatic 1,3-diketone prepn. by reacting acetoacetyl fluoride with solid and liq. aromatic cpds. in >=90% HF at -40 degrees to +5 degrees C is disclosed in Parent Patent. In this patent of addn. the acetoalkyl fluoride used (I) is substd. in r-position by 1-3 halogen atoms, pref. F, Cl and/or Br. Prods. can be used as metal complexing agents, metal extractants, dye precursors, monomers for plastics, precursors for plant protective agents and pharmaceuticals solubilisers and solvents. |