The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile(SMILESS: N#CC1=NC(Cl)=C(Cl)N=C1C#N,cas:56413-95-7) is researched.Name: 3-Methyl-1H-pyrrole. The article 《2-Sulfanylidene-1,3-dithiolo[4,5-b]pyrazine-5,6-dicarbonitrile》 in relation to this compound, is published in IUCrData. Let’s take a look at the latest research on this compound (cas:56413-95-7).
In the title compound, C7N4S3, the mol. entity consisting of a 1,3-dithiole-2-thione with a fused pyrazine ring is planar, with an r.m.s. deviation of 0.042 (3) Å from the least-squares plane. In the crystal, mols. are linked via short intermol. S···N contacts [3.251 (4) and 3.308 (3) Å] between the S atom of the thiocarbonyl group and N atoms of the cyano groups.
In addition to the literature in the link below, there is a lot of literature about this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile)Product Details of 56413-95-7, 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