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2-Chloropyrazine is used in cardiotonic, in biological, drug, flavoring and perfumery industry.
C Gosmini; JY Nédélec; J Périchon. Electrochemical cross-coupling between functionalized aryl halides and 2-chloropyrimidine or 2-chloropyrazine catalyzed by nickel 2, 2?-bipyridine complex. Tetrahedron Letters. 2000, 41, (2), 201-203.
JM Bégouin, C Gosmini. Cobalt-catalyzed cross-coupling between in situ prepared arylzinc halides and 2-chloropyrimidine or 2-chloropyrazine. The Journal of organic chemistry. 2009, 74, (8), 3221-3224.
The activated chlorine is readily displaced by nucleophiles. In an interesting synthesis of a fused pyridine, intramolecular cycloaddition is followed by elimination of HCN via a retro-Diels-Alder reaction: Tetrahedron, 44, 2977 (1988):
Selectively metallated at the 3-position by LDA or Li tetramethylpiperidide. The lithio-derivative reacts with electrophiles in good yield: Synthesis, 881 (1988).
Hazard Statements: H226-H315-H319-H335
Flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P210-P261-P303+P361+P353-P305+P351+P338-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.