Water → HCID 59295129, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 2.40 g of the product of Step A and 1.97 g of pyridine in AcOH (10.0 mL) at 0° C. was stirred as a solution of 1.92 g of bromine in AcOH (1.0 mL) was added dropwise. The resulting mixture was stirred at 0° C. for one h and then warmed to ambient temperature and stirred for an additional 16 h. The reaction mixture was poured into water and extracted with EtOAc (2×). The combined organic extracts were washed with water, dried over magnesium sulfate, filtered, and concentrated to an oil that was purified by silica gel chromatography to provide trifluoroacetic acid N′-(5-bromo-3-chloro-pyrazin-2-yl)-hydrazide as a white solid. MS (M+H+)=320.1.

Provenance & Evidence