Adding a certain compound to certain chemical reactions, such as: 113305-94-5, name is 5-Aminopyrazine-2-carbonitrile, belongs to pyrazines compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 113305-94-5, Quality Control of 5-Aminopyrazine-2-carbonitrile
To a solution of 5-aminopyrazine-2-carbonitrile (0.6 g, 4.99 mmol) in dry EtOH (9 mL) were added sodium bromide (0.257 g, 2.49 mmol) and chloroacetone (2.01 mL, 24.95 mmol) portionwise. The reaction mixture was heated at 80C for 16 h with stirring, then allowed to cool to r.t. The solvent was removed in vacuo, then the solids were taken up in DCM (100 mL) and washed with saturated aqueous NaHC03 solution (50 mL).The phases were separated and the aqueous phase was extracted with DCM (2 x 50 mL).The combined organic layers were washed with brine (50 mL), then dried (MgS04), filtered and concentrated. Purification by column chromatography, eluting with EtOAc/ heptane (20-100%>), yielded the title compound (220 mg, 28%).
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Reference:
Patent; UCB BIOPHARMA SPRL; BRACE, Gareth Neil; CHOVATIA, Prafulkumar Tulshibhai; FOULKES, Gregory; JOHNSON, James Andrew; JONES, Severine Danielle; KROEPLIEN, Boris; LECOMTE, Fabien Claude; LOKE, Pui Leng; LOWE, Martin Alexander; MANDAL, Ajay; NORMAN, Timothy John; PALMER, Christopher Francis; PEREZ-FUERTES, Yolanda; PORTER, John Robert; SMYTH, Donald; TRANI, Giancarlo; UDDIN, Muhammed; ZHU, Zhaoning; (207 pag.)WO2016/198400; (2016); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem