2020
DOI: 10.1039/d0ra05092j
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Predicting reactivity for bioorthogonal cycloadditions involving nitrones

Abstract: Nitrones are useful dipoles in both synthesis and in bioorthogonal transformations to report on biological phenomena.

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Cited by 6 publications
(10 citation statements)
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References 42 publications
(52 reference statements)
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“…Higher distortion energies were calculated for nitrone-dipolarophile transformations with later transition state geometries (close to final product geometries), while this trend only remained true for strained dipolarophile distortion energies . Calculated interaction energies were also found to display a linear free energy relationship with previously empirically determined second-order rate constants for reactions with cyclic nitrones . Overall, it was found that total interaction energies play a dominant role in affecting cycloaddition relative barrier heights and that these interaction energies determined via D/I analysis can be used to predict trends in reactivity and guide synthesis efforts for developing new bioorthogonal cycloaddition reactions …”
Section: Strain-promoted Alkyne-nitrone Cycloadditions (Spancs)mentioning
confidence: 62%
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“…Higher distortion energies were calculated for nitrone-dipolarophile transformations with later transition state geometries (close to final product geometries), while this trend only remained true for strained dipolarophile distortion energies . Calculated interaction energies were also found to display a linear free energy relationship with previously empirically determined second-order rate constants for reactions with cyclic nitrones . Overall, it was found that total interaction energies play a dominant role in affecting cycloaddition relative barrier heights and that these interaction energies determined via D/I analysis can be used to predict trends in reactivity and guide synthesis efforts for developing new bioorthogonal cycloaddition reactions …”
Section: Strain-promoted Alkyne-nitrone Cycloadditions (Spancs)mentioning
confidence: 62%
“…40 Calculated interaction energies were also found to display a linear free energy relationship with previously empirically determined secondorder rate constants for reactions with cyclic nitrones. 40 Overall, it was found that total interaction energies play a dominant role in affecting cycloaddition relative barrier heights and that these interaction energies determined via D/I analysis can be used to predict trends in reactivity and guide synthesis efforts for developing new bioorthogonal cycloaddition reactions. 40 2.4.…”
Section: Computational Distortion/interaction Analysis Of Bioorthogon...mentioning
confidence: 99%
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“…These differences in orbital coefficients are likely to be similar for cycloadditions of nitrones with cyclooctadiynes. Recently, distortion/interaction energies have been highlighted as an important consideration for cycloadditions of cyclooctynes with various dipoles, including nitrones. Given that distortion/interaction energies may play a more important role, we investigated the mechanistic possibilities further by conducting computational studies.…”
Section: Results and Discussionmentioning
confidence: 99%