The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7 ) is researched.Synthetic Route of C6Cl2N4.Hill, Jonathan P.; Subbaiyan, Navaneetha K.; D’Souza, Francis; Xie, Yongshu; Sahu, Satyajit; Sanchez-Ballester, Noelia M.; Richards, Gary J.; Mori, Toshiyuki; Ariga, Katsuhiko published the article 《Antioxidant-substituted tetrapyrazinoporphyrazine as a fluorescent sensor for basic anions》 about this compound( cas:56413-95-7 ) in Chemical Communications (Cambridge, United Kingdom). Keywords: antioxidant tetrapyrazinoporphyrazine fluorescent sensor anion. Let’s learn more about this compound (cas:56413-95-7).
Tetrapyrazinoporphyrazine substituted at its periphery with eight antioxidant 3,5-di-t-butyl-4-hydroxyphenyl groups behaves as a turn-on fluorescent sensor for fluoride anions. Conversely, the precursor antioxidant-substituted 1,2-phthalonitrile was found to act in turn-off mode suggesting that the origin of the phenomenon lies at the phenolate-substituted 1,4-pyrazinyl moiety.
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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate