Beilstein J. Org. Chem.2026,22, 603–610, doi:10.3762/bjoc.22.46
host of other reactivity predictors.
Keywords: bond dissociation energy; hydricity; hydrideaffinity; hydride-transfer reactions; machine learning (ML); quantum chemistry (QM); Introduction
Bond dissociation energies (BDEs) and pKa values for C–H bonds are often used to rationalise and predict the
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Graphical Abstract
Figure 1:
Different cleavage methods for C–H bonds. Heterolytic bond dissociation energy with proton dissocia...
Beilstein J. Org. Chem.2024,20, 787–814, doi:10.3762/bjoc.20.72
. Thermodynamic and theoretical data provide hydride affinities, which correspond to the negative heat of formation for the combination of a hydride anion with a given cation in the gas phase (Figure 2) [26][29].
It is noteworthy that, in contrast to the hydrideaffinity scale, the Mayr scale considers energetic
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Graphical Abstract
Scheme 1:
Classes of hydrochlorination reactions discussed in this review.