The compound exists exclusively as the thiol tautomer, consistent with the strength of the C = O double bond.
22.
The name " disilene ", referring to the structure of a particular prototropic tautomer of the molecule.
23.
If the nitrogen with the hydrogen is in the tele position, then histamine is in the tele-tautomer form.
24.
The amide tautomer is referred to as the lactam structure, while the imidic acid tautomer is referred to as the lactim structure.
25.
The amide tautomer is referred to as the lactam structure, while the imidic acid tautomer is referred to as the lactim structure.
26.
Acetylenediol is unstable in the condensed phase, although its tautomer glyoxal H ( C = O ) 2 H is well known.
27.
It was originally proposed that a hydrogen bond between the uracil and guanidine groups in the enol tautomer would make this the dominant form.
28.
However, mixture with melamine forms melamine cyanurate, which locks cyanuric acid in the tri-keto tautomer and makes melamine cyanurate insoluble in water.
29.
Keto-enol tautomerization typically strongly favors the keto tautomer, but an important exception is the case of 1, 3-diketones such as acetylacetone.
30.
It exists in equilibrium with the tautomer 2-hydroxyfuran, which serves as an intermediate in the interconversion between the ?-and ?-furanones.
