Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Synthesis and comparison of photodynamic activity of alkylheteroatom substituted azaphthalocyanines.Category: chiral-oxygen-ligands.
Optimal reaction conditions were developed for synthesis of octakis(butylamino), octakis(butylsulfanyl) and octakis(butoxy) azaphthalocyanines (AzaPc’s) with central metal Mg, Zn and metal-free. Their photodynamic activity was measured and compared as a dye-sensitized photooxidation of 1,3-diphenylisobenzofuran (DPBF). Compounds with alkylamino substituent are very poor producers of the singlet oxygen and therefore not suitable as sensitizers for photodynamic therapy (PDT). On the other hand, compounds with alkylsulfanyl and alkoxy substituents possess very good photodynamic activity and are suitable for PDT.
The article 《Synthesis and comparison of photodynamic activity of alkylheteroatom substituted azaphthalocyanines》 also mentions many details about this compound(56413-95-7)Category: chiral-oxygen-ligands, 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