Reference of 109-08-0, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 109-08-0 as follows.
0351] To a solution of LDA (295 mL, 0.59 mol, 2 M in heptane/THF/ethylbenzene) in anhydrous THF (300 mL) cooled to -40 C. was added 2-methylpyrazine (48.5 mL, 0.531 mol) dropwise via an addition funnel. The reaction was allowed to warm to -20 C. and was stirred for 90 minutes when a solution of benzaldehyde (54 mL, 0.531 mol) in anhydrous THF (200 mL) was added dropwise via an addition funnel. After complete addition, the reaction was allowed to warm to room temperature and was stirred for 20 hours. The reaction was then cooled in an ice bath and saturated NH4Cl (500 mL) was added. The resulting mixture was extracted with EtOAc (500 mL, 250 mL). The combined extracts were dried (Na2SO4), filtered and concentrated to a damp, beige solid. The product was triturated with Et2O and collected then dried overnight to yield 56.0 g (53percent) of a light brown solid, mp 81-84 C.
According to the analysis of related databases, 109-08-0, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Hendrix, James A.; Strupczewski, Joseph T.; Bordeau, Kenneth J.; Brooks, Sarah; Hemmerle, Horst; Urmann, Matthias; Zhao, Xu-Yang; Mueller, Paul J.; US2003/229066; (2003); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem