Heterocyclic compounds with 1 ring

Metaldehyde is an organic compound with the formula (). It is used as a pesticide against slugs and snails. It is the cyclic tetramer of acetaldehyde.

chemical compound

Sulfolane (also tetramethylene sulfone, systematic name: 1-thiolane-1,1-dione) is an organosulfur compound, formally a cyclic sulfone, with the formula . It is a colorless liquid commonly used in the chemical industry as a solvent for extractive distillation and chemical reactions. Sulfolane was originally developed by the Shell Oil Company in the 1960s as a solvent to purify butadiene. Sulfolane is a polar aprotic solvent, and it is miscible with water.

A diaziridine is a heterocyclic compound containing two nitrogen atoms in a three-membered ring. Diaziridines can be considered as strained hydrazines. Unlike most amine types of structures, the nitrogen atoms of diaziridines are configurationally stable because the ring strain prevents Walden inversion. As a result, there can be various stereoisomeric forms of this structure.

chemical compound

'''N,N′-Dimethylpropyleneurea (DMPU''') is a cyclic urea sometimes used as a polar, aprotic organic solvent. Along with the dimethylethyleneurea, it was introduced as an analog of tetramethylurea.

chemical compound

Enterobactin (also known as enterochelin) is a high affinity siderophore that acquires iron for microbial systems. It is primarily found in Gram-negative bacteria, such as Escherichia coli and Salmonella typhimurium.

Cyclopentadecanolide is an organic compound with the formula . A colorless solid, it is classified as macrolide lactone. It has some use in perfumery.

'2-C-Methyl--erythritol-2,4-cyclopyrophosphate (MEcPP') (also 2-C-Methyl--erythritol-2,4-cyclodiphosphate) is an intermediate in the MEP pathway (non-mevalonate) of isoprenoid precursor biosynthesis. MEcPP is produced by MEcPP synthase (IspF) and is a substrate for HMB-PP synthase (IspG).

thumb|upright=0.5|right|General chemical structure of molozonides A molozonide (short for "molecular ozonide"; 1,2,3-trioxolane) is a cyclic molecule containing a five-membered ring consisting of two adjacent carbon atoms and three adjacent oxygen atoms. They are thus cyclic disubstituted trioxidane derivatives. Molozonides are formed by cycloaddition of ozone and an alkene during ozonolysis, as a transient intermediate which quickly rearranges to give the ozonide (1,2,4-trioxolane), the relatively stable product generated immediately prior to reductive or oxidative cleavage to form alcohols,

Arsthinol (INN) is an organoarsenic compound with the formula . A antiprotozoal agent, it was first reported in 1949. It arises by the reaction of acetarsol with 2,3-dimercaptopropanol (British anti-Lewisite) and has been demonstrated to be effective against amoebiasis and yaws. It was marketed a few years later by Endo Products (Balarsen, Tablets, 0.1 g).

Glucal is the glycal formed from glucose. It is a chemical intermediate in the synthesis of a variety of oligosaccharides.

Selenophene is an organic compound with the chemical formula . It is an unsaturated compound containing a five-member ring with four carbon atoms and one selenium atom. It is a selenium analog of furan and thiophene . A colorless liquid, it is one of the more common selenium heterocycles.

Azonine is an unsaturated heterocycle of nine atoms, with a nitrogen replacing a carbon at one position. A variety of derivatives have been synthesised. It is considered to possess a considerable amount of aromatic stability. It and C9H9– are the largest monocyclic all-cis ring systems to be aromatic and close to planar. Due to a balance between angle strain (~20°) and aromaticity, a planar conformation and distorted conformation are very close in energy and the two are observable as an equilibrium mixture in the solution phase in acetone. Furthermore, the presence of substituents or nearby ca

Sulbentine (or dibenzthione) is an antifungal.

1,5-Dithiacyclooctane (DTCO) is an organosulfur compound with the formula (CHCH)CHS). This cyclic dithioether is a colorless oil that is soluble in polar solvents. It forms a variety of transition metal thioether complexes.

chemical compound

thumb|right|upright|General chemical structure of fulgides in the uncyclized form. In order to cyclize, at least one of the four R groups must be an aryl group. In organic chemistry, a fulgide is any of a class of photochromic compounds consisting of a bismethylene-succinic anhydride core that has an aromatic group as a substituent. The highly conjugated system is a good chromophore. It can undergo reversible photoisomerization induced by ultraviolet light, converting between the E and Z isomers, both of which are typically colorless compounds. Unlike the more-stable Z isomer, the E isomer can