Halogen containing ketones acid halides and processes

Abstract

Abstract THERE ARE PROVIDED NOVEL HALOGENATED KETONES OF THE FORMULAE Y-C(-X)(-R1)-C(-R2)=O AND Y-C(-X)<(-R3-CO-) WHEREIN X IS SELECTED FROM THE GROUP CONSITING OF CHLORINE BROMINE, FLUORINE AND HYDROGEN; R1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CHLORINE, BROMINE, FLUORINE AND HALO ALKYL; R2 IS HALO ALKYL; R3 IS HALO ALKYLENE OF FROM THREE TO FOUR CARBON ATOMS; AND Y IS ALLYL; SAID R1, R2 AND R3 SUBSTITUENTS CONTAINING A MAXIMUM OF TWO HYDROGEN ATOMS. THESE KETONES ARE USEFUL AS PESTICIDES. THERE IS ALSO PROVIDED A PROCESS FOR PREPARING THESE KETONES COMPRISING HEATING A COMPOUND OF FORMULAE R1-C(-X)=C(-R2)-O-Y AND X-C<(-R3-C(-O-Y)=) UNTIL THE DESIRED COMPOUND IS PRODUCED. THE KETONES OF THIS INVENTION ARE USEFUL AS CHEMICAL INTERMEDIATES FOR EXAMPLE, IN THE MAKING OF DIELS-ALDER ADDUCTS WITH HEXAHALOCYCLOPENTADIEN, TO PRODUCE PESTICIDAL COMPOUNDS ACTIVE AGAINST INSECTS, FUNGI, BACTERIA AND NEMATODES. THEY ARE ALSO USEFUL AS OLEFIN MONOMERS WHICH MAY BY POLYMERIZED TO MOLDABLE PLASTICS WHICH EXHIBIT FLAME RETARDANT CHARACTERISTICS.

Inventors

• 👤 Samuel Gelfand

Bibliographic Details