Dimetüle

Dimetüle is a term used in chemistry to describe molecules that bear two methyl groups. It functions as a prefix in systematic nomenclature to indicate two methyl substituents, analogous to the English “dimethyl-.” The methyl group is a simple −CH3 unit, and dimetüle can be attached to a wide range of parent structures, including alkanes, alkenes, alcohols, ethers, and more complex frameworks.

In the full IUPAC-style name, the positions of the two methyl groups are specified by locants, for example 1,1‑dimetüle- or 2,3‑dimetüle-, which communicates their placement on the carbon skeleton. The exact prefix form may vary slightly with language conventions, but the underlying idea is two identical methyl substituents on the molecule.

The presence of two methyl groups can influence several properties, such as volatility, hydrophobicity, and boiling point, and it can also affect reactivity and steric hindrance. Dimetüle derivatives are common building blocks in organic synthesis, pharmaceuticals, polymers, and specialty solvents. They are studied in textbooks and research articles within Estonian-speaking chemistry contexts as the equivalent of the English “dimethyl-” prefix.

See also: dimethyl, methyl group, di- prefixes in nomenclature.