ANALOGIFREMGANGSMAADE TIL FREMSTILLING AF QUINOXALIN-2-YL-ETHENYLKETONER

• Main Authors: JANOS GUNDEL, PAL BENKO, DANIEL BOZSING, KAROLY MAGYAR
• Format: Patent
• Language: Danish
• Published: 09.12.1985
• Edition: 4
• Subjects: CHEMISTRY; FODDER; FOODS OR FOODSTUFFS; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

The invention relates to novel quinoxaline-2-yl ethenyl ketones, their preparation and compositions containing them. The novel quinoxaline-2-yl ethenyl ketones of the general formula I (I) wherein R1 represents an aryl group or a heterocyclic group comprising one or more nitrogen and/or oxygen and/or sulfur atoms wherein both the aryl and heterocyclic groups are optionally substituted by one or more identical or different substituents, R2 stands for a hydrogen atom or a C1-4 alkyl group, are prepared by reacting an acetylquinoxaline derivative of the general formula II (II) wherein R2 is as stated above, with an aldehyde of the general formula III R1-CHO (III) wherein R1 is as stated above. The novel compounds of the general formula I possess valuable antibacterial effect and promote the growth of animals. Thus, the novel compounds can be incorporated in animal feeds.