Synthetic Route of 63286-28-2, A common heterocyclic compound, 63286-28-2, name is 2-Chloro-3-hydrazinylpyrazine, molecular formula is C4H5ClN4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
[00145] To a solution of l-(4-chlorophenyl)cyclopropanecarboxylic acid (6300 mg, 32.0 mmol) and 4-methylmorpholine (3.87 mL, 35.2 mmol) in THF (100 mL) at 0 0C was added isobutyl chloroformate (4.21 mL, 32.0 mmol). After completion of addition, the reaction mixture was stirred for 25 min, and then a solution of 2-chloro- 3-hydrazinylpyrazine (5095 mg, 35.2 mmol) in THF (60 mL) was added. The resulting mixture was stirred for 45 min. After that time, the reaction mixture was quenched with saturated aq. NaHCtheta3 and then extracted with EtOAc (25 mL). The organic layer was collected, washed with saturated aq. NH4Cl followed by aq. NaCL,
The synthetic route of 63286-28-2 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; WO2008/130951; (2008); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem