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. 51171-02-9, name is Methyl 3-Bromo-2-pyrazinecarboxylate, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of Methyl 3-Bromo-2-pyrazinecarboxylate
(B) Methyl 2-phenylamino-3-pyrazine carboxylate A mixture of 9.5 g. of methyl 2-bromo-3-pyrazine carboxylate, 8.2 g. of aniline, 0.5 g. of p-toluene sulfonic acid and 100 ml. of water is stirred and refluxed for two hours. The reaction mixture is poured on ice, extracted with ethyl acetate, the organic extracts are dried and concentrated to yield an oil. The crude residue is eluted on a silica gel column with ethylacetate-hexane (1:2) yielding the product of this example as a yellow solid, m.p. 72-75 C.
Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 51171-02-9.
Reference:
Patent; Schering Corporation; US4492702; (1985); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem