In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Cobalt-Catalyzed Ligand-Controlled Divergent Regioselective Reactions of 1,6-Enynes with Thiols, published in 2020-06-08, which mentions a compound: 4556-23-4, mainly applied to cobalt catalyzed divergent regioselective cyclization reaction enyne thiol; carbocyclic organosulfur pyrrole pyrrolizine compound preparation reactivity, Application of 4556-23-4.
An efficient Co-catalyzed method for the synthesis of carbocyclic organosulfur compounds from 1,6-enynes and thiols was developed. The significance of this methodol. is the ability to give three different cyclization products depending on the ligands used. The products were obtained in moderate to good yields with broad substrate scope.
Compounds in my other articles are similar to this one(Pyridine-4-thiol)Application of 4556-23-4, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.
Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts