The origin of a common compound about 56413-95-7

In addition to the literature in the link below, there is a lot of literature about this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile)Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile, illustrating the importance and wide applicability of this compound(56413-95-7).

Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Syntheses and characterization of push-pull tetrapyrazino[2,3-b]indoloporphyrazines. Author is Jaung, Jae-Yun; Matsuoka, Masaru; Fukunishi, Koushi.

The synthesis of tetrakis(indolopyrazino)porphyrazines by ring-closure reactions of 2,3-dichloro-5,6-dicyanopyrazine with enamines is described. Alkylated tetrakis(indolopyrazino)porphyrazines have push-pull intramol. charge-transfer chromophoric systems and show good solubility in most organic solvents. Large spectral changes caused by mol. aggregation of these dyes affected by solvent polarity and temperature were studied.

In addition to the literature in the link below, there is a lot of literature about this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile)Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile, illustrating the importance and wide applicability of this compound(56413-95-7).

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