Tautomerism | Keto-Enol Dynamic Isomerism | Desmotropism (Part-1) | Ved Sir | VedPrep Chem Academy

Описание: Tautomerism | Keto Enol Dynamic Isomerism | Desmotropism | Ved Sir | | VedPrep Chem Academy

Part-2: ​​​​​​​​   • Tautomerism | Keto-Enol Dynamic Isomerism ...  

Tautomerism, keto-enol dynamic isomerism, and desmotropism are all concepts related to the structural transformation of molecules, particularly in organic chemistry. Let's explore each of these terms:

➤ Tautomerism:
Tautomerism refers to the phenomenon where a molecule can exist in two or more structural forms (tautomers) that rapidly interconvert through the migration of atoms and the shifting of chemical bonds. These tautomers have the same molecular formula but different connectivity and arrangement of atoms. One common example is the keto-enol tautomerism in carbonyl compounds, where a ketone tautomerizes into an enol form and vice versa.

➤ Keto-Enol Dynamic Isomerism:
Keto-enol dynamic isomerism is a specific type of tautomerism that occurs in compounds containing a carbonyl group (C=O) and an adjacent hydrogen atom on a carbon atom. In this case, the compound can exist in two tautomeric forms: the keto form and the enol form. The keto form has a carbonyl group, and the enol form has a hydroxyl group (-OH) on one of the carbons of the double bond. The interconversion between these two forms involves the migration of a proton and the rearrangement of double bonds.

➤ Desmotropism:
Desmotropism is a concept similar to tautomerism but is typically used to describe the interconversion of resonance structures in molecules that are not in dynamic equilibrium. In other words, desmotropism refers to the non-equilibrium shifting of electrons in a molecule to produce different resonance structures. These resonance structures are usually represented by different Lewis structures that can be drawn to describe the electron distribution within the molecule.

In summary, tautomerism involves the rapid interconversion of molecules between different structural forms, often involving isomers with different functional groups. Keto-enol dynamic isomerism is a specific type of tautomerism occurring in compounds with a carbonyl group and an adjacent hydrogen atom. Desmotropism refers to the non-equilibrium shifting of electrons in molecules to produce different resonance structures.

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🎯 This Video Has the Following Terms:
tautomerism, keto enol dynamic isomerism, desmotropism

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