4-CYANOIMIDAZOLE

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H302：Gesundheitsschädlich bei Verschlucken.

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

4-CYANOIMIDAZOLE Chemische Eigenschaften,Einsatz,Produktion Methoden

• synthetische

  A mixture of ethyl 4-imidazolecarboxylate (33 g) and ammonium hydroxide (250 mL) was heated to 100 C° in a sealed glass vessel for 1–7 days. The mixture was then cooled and the solid 4-imidazolecarboxamide 1443 was recovered by filtration in near quantitative yield and air dried. Dehydration was carried out by heating a solution of 4-imidazolecarboxamide 1443 (5 g) in PhPOCl2 (25 mL) at 80 C° for 12 h. The cooled reaction mixture was then poured over ice (200 mL) and adjusted to pH 11 with 50% aqueous sodium hydroxide. The 4-cyanoimidazole 1444 was isolated by extraction with ethyl acetate and concentration of the extracts in vacuo.

4-CYANOIMIDAZOLE Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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