Song, Lijuan; Li, Wenhao; Duan, Wenxue; An, Jichao; Tang, Shanyu; Li, Longjia; Yang, Guanyu published the article 《Natural gallic acid catalyzed aerobic oxidative coupling with the assistance of MnCO3 for synthesis of disulfanes in water》. Keywords: disulfane preparation; thiol oxidative coupling gallic acid organocatalyst.They researched the compound: Pyridine-4-thiol( cas:4556-23-4 ).Category: nitriles-buliding-blocks. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:4556-23-4) here.
To pursue a sustainable approach for such a synthesis, an aerobic oxidative coupling method for the efficient preparation of organic disulfanes RSSR1 [R = 4-MeC6H4, cyclohexyl, 2-thienyl, etc.; R1 = t-Bu, 4-ClC6H4, 4-H2NC6H4, etc.], using a low-toxic natural gallic acid as an organocatalyst, inexpensive MnCO3 as a cocatalyst, O2 as the terminal oxidant and water as the solvent, was successfully developed. Such metal-organic cooperative catalytic protocol provided an access to various sym. and unsym. disulfanes in up to 99% yield. Gram scale synthesis with practical convenience and low loading of catalysts further illustrated the practicability of our method.
As far as I know, this compound(4556-23-4)Category: nitriles-buliding-blocks can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts