Reference of 4858-85-9, 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. 4858-85-9, name is 2,3-Dichloropyrazine, This compound has unique chemical properties. The synthetic route is as follows.
A 100 mL round bottom flask was charged with 2,3-dichloropyrazine (10 g, 67.6 mmol), hydrazine hydrate (6.76 g, 135 mmol) and ethanol (40 mL). The resulting mixture was stirred at reflux for 3 h. Reaction progress was monitored by TLC (EtO Ac/petroleum ether = 2:1). Work-up: the reaction mixture was cooled to room temperature. The solid was collected by filtration, washed with water (30 mL x 2) and dried, to afford 8.4 g (87%) of the product as a yellow solid.
The chemical industry reduces the impact on the environment during synthesis 2,3-Dichloropyrazine. I believe this compound will play a more active role in future production and life.
Reference:
Patent; KALYPSYS, INC.; BORCHARDT, Allen; DAVIS, Robert; NOBLE, Stewart, A.; WO2011/112766; (2011); A2;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem