Extracurricular laboratory: Synthetic route of Pyrazine-2-carbaldehyde

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 5780-66-5, other downstream synthetic routes, hurry up and to see.

A common compound: 5780-66-5, name is Pyrazine-2-carbaldehyde, belongs to Pyrazines compound, it can change the direction of chemical reaction, and react with certain compounds to generate new functional products. A new synthetic method of this compound is introduced below. 5780-66-5

Intermediate 85 Ethyl 1-phenyl-3- [ (2-pyrazinylmethyl) amino]-1 H-pyrazole-4-carboxylate To ethyl 3-amino-1-phenyl-1H-pyrazole-4-carboxylate (250 mg, 1.08 mmol) was added DCM (6 mL), pyrazine-2-carboxaldehyde (233 mg, 2.16 mmol), acetic acid (0.18 mL, 3.24 mmol) and sodium triacetoxyborohydride (0.46 g, 2.16 mmol). The reaction was stirred overnight at room temperature, partitioned between DCM and water, passed through a hydrophobic frit and the organic layer concentrated. Purified by MDAP HPLC to give the title compound. MS calcd for (C17H17N5O2+H)+ : 324 MS found (electrospray) : (M+H) + = 324

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 5780-66-5, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; GLAXO GROUP LIMITED; WO2005/92863; (2005); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem