Heterocyclic block

In this article, “tetrazole” refers to the five-membered nitrogen heterocycle composed of one carbon and four nitrogens. For readability, we use tetrazole throughout. The importance of tetrazoles is not simply “having many nitrogens,” but rather that this small ring simultaneously offers ...

1,3,4-Thiadiazole is a sulfur-containing organic compound characterized by a molecular structure comprising a thiadiazole ring and two nitrogen atoms, forming a five-membered heterocyclic compound with a thiophene ring. Among its isomers, 1,3,4-thiadiazole has garnered more extensive research ...

It is well known that 1,3,4-Oxadiazoles are an important class of heterocyclic compounds and common heterocyclic building blocks in pharmaceutical molecules as well as in organic synthesis.

Azetidine is a saturated heterocyclic organic compound composed of three carbon atoms and one nitrogen atom. At room temperature, it exists in the form of a liquid with a strong ammonia odor and a strong alkalinity compared to most secondary amines.