Electric Literature of 356783-15-8, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 356783-15-8, name is 3,6-Dichloropyrazine-2-carboxylic acid, This compound has unique chemical properties. The synthetic route is as follows.
(b) In 2.0 mL of methylene chloride was suspended 0.2 g of 3,6-dichloro-2-pyrazinecarboxylic acid. Then, 0.001 mL of N,N-dimethylformamide and 0.14 mL of oxalyl chloride were successively added at an ice-cooled temperature, and the mixture thus formed was stirred at room temperature for 40 minutes. The reaction mixture was concentrated to dryness under reduced pressure and then dissolved in 3.0 mL of acetonitrile. Then, 0.3 g of potassium fluoride and 0.056 g of 18-crown-6-ether were added and the mixture thus formed was stirred at 60 C. for 2.5 hours in an atmosphere of nitrogen gas. The reaction mixture was poured into 3.0 mL of methanol, the insoluble matter was filtered off, and then the filtrate was concentrated to dryness under reduced pressure. The residue was purified by silica gel chromatography [eluent: n-hexane:ethyl acetate-9:1] to obtain 0.15 g of methyl 3,6-difluoro-2-pyrazinecarboxylate as a colorless oily product.
The chemical industry reduces the impact on the environment during synthesis 3,6-Dichloropyrazine-2-carboxylic acid. I believe this compound will play a more active role in future production and life.
Reference:
Patent; Toyama Chemical Co., Ltd.; US2003/130213; (2003); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem