Name: 5,6-Dichloropyrazine-2,3-dicarbonitrile. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Tetra[6,7]quinoxalinoporphyrazines: the effect of an additional benzene ring on photophysical and photochemical properties. Author is Novakova, Veronika; Zimcik, Petr; Miletin, Miroslav; Kopecky, Kamil; Musil, Zbynek.
Tetrapyrazinophthalocyanines (or tetra[6,7]quinoxalinoporphyrazines, 6,7-TQP) and tetrapyrazinoporphyrazines (TPP), bearing carboxy, alkyl, amino, alkylthio and phenolato substituents were prepared as their zinc complexes by macrocyclization of the corresponding 2,3-disubstituted 6,7-quinoxalinodinitriles and 5,6-disubstituted 2,3-pyrazinedinitriles, resp. Synthetic methods for preparation of the precursor dinitriles were developed. Photophys. and photochem. properties of 6,7-TQP were compared with tetrapyrazinoporphyrazines (TPP) bearing the same peripheral substituents to disclose the effect of insertion of a benzene ring between the pyrazine and porphyrazine moieties. The influence of the peripheral heteroatom in the group of 6,7-TQP is also discussed. Prepared 6,7-TQP have their main absorption band (Q-band) strongly batho- and hyperchromically shifted (λmax = 730-770 nm in pyridine, ε up to 500000 dm3 mol-1cm-1) in comparison to TPP. They showed high singlet oxygen quantum yields (ΦΔ = 0.50-0.74) and relatively low fluorescence quantum yields (ΦF < 0.08). The article 《Tetra[6,7]quinoxalinoporphyrazines: the effect of an additional benzene ring on photophysical and photochemical properties》 also mentions many details about this compound(56413-95-7)Name: 5,6-Dichloropyrazine-2,3-dicarbonitrile, you can pay attention to it, because details determine success or failure
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