2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

• Sicherheit

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P301+P312：BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile Chemische Eigenschaften,Einsatz,Produktion Methoden

• Verwenden

  2-(1-(Ethylsulfonyl)azetidin-3-ylidene)acetonitrile is an intermediate in the synthesis of Baricitinib, a JAK 1 and 2 inhibitor used in the treatment of rheumatoid arthritis.

• Synthese

  2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile is synthesized by first treating azetidine-3-ol hydrochloride with an equimolar equivalent of an alkanesulfonyl chloride, preferably ethanesulfonyl chloride, to give l-ethylsulfonylazetidin-3-ol. Preferably, the reaction is performed in a biphasic solution comprising a mixture of an organic phase and a aqueous phase, preferably THF with an aqueous solution which is basic, while maintaining the solution at room temperature or a temperature slightly below room temperature, preferably 20 °C. The reaction is followed to completion using standard monitoring techniques. Typically, the reaction is complete within 1 to 5 hours. The organic layer is removed, preferably by distillation, and the aqueous layer is extracted with an appropriate solvent such as toluene, p-cymene, and CPME. Preferably the extraction solvent is toluene. Alternatively, the toluene extractions can be excluded if recrystallization of 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile is performed.

  

2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile Upstream-Materialien And Downstream Produkte

2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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