The phenomenon of tautomerization is called tautomerism, also called desmotropism. Tautomerism is for example relevant to the behavior of amino acids and nucleic acids , two of the fundamental building blocks of life.

13.1A: Keto-enol tautomerization. When we draw a ketone or aldehyde using the Lewis structure convention, we show a double bond between the carbonyl carbon and the oxygen - this is known as the keto form. It turns out that ketones and aldehydes often exist in rapid equilibrium with a tautomeric form known as an enol.. The alpha-protons of carbonyls, as you recall, are …

Tautomerism is a phenomenon where a single chemical compound tends to exist in two or more interconvertible structures that are different in terms of the relative position of one atomic nucleus, which is generally hydrogen. The two structures are called tautomers, and these types of isomer compounds usually differ only in the number of ...

Because of the acidity of α-hydrogens, many carbonyl containing compounds undergo a proton-transfer equilibrium called tautomerism. Tautomers are readily interconverted constitutional isomers, usually distinguished by a different location for an atom or a group.

Tautomerism, the existence of two or more chemical compounds that are capable of facile interconversion, in many cases merely exchanging a hydrogen atom between two other atoms, to either of which it forms a covalent bond.

2023年5月15日 · What is Tautomerism? A scientist named Emil Erlenmeyer developed rules for tautomerism in the 1880s. Tautomers are isomers of a compound that differ only in the position of the protons and electrons. The carbon skeleton of the compound is unchanged. A reaction that involves simple proton transfer in an intramolecular fashion is called tautomerism.

2022年6月21日 · Aldehydes and ketones that have a proton on the alpha carbon can participate in keto-enol tautomerism, where an equilibrium exists between two constitutional isomers – the keto and enol forms. Constitutional isomers that are in equilibrium are called “tautomers”.

2024年4月2日 · Tautomerism refers to the presence of two or more forms of the same compound that can interconvert through the relocation of a proton. Tautomers exist in equilibrium with each other and can be obtained by the movement of a proton and associated electrons. Tautomerism does not affect the stability of the molecule or the bond lengths.

Tautomerism is a chemical phenomenon where a molecule can exist in two or more forms that differ in the position of a proton or a double bond. These forms are called tautomers and can interconvert rapidly. Tautomerism is important in biochemistry and organic chemistry.

Tautomerism is a phenomenon in which a set of molecules can interconvert by movement of a hydrogen or group of atoms and/or molecular rearrangement. The movement of hydrogen atoms along with the migration of pi-bonds is called prototropic tautomerism.