Estimation of multicomponent reactions’ yields from networks of mechanistic steps

Sara Szymkuć, Agnieszka Wołos, Rafał Roszak () and Bartosz A. Grzybowski ()
Additional contact information
Sara Szymkuć: Inc.
Agnieszka Wołos: Inc.
Rafał Roszak: Inc.
Bartosz A. Grzybowski: Polish Academy of Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: Abstract This work describes estimation of yields of complex, multicomponent reactions (MCRs) based on the modeled networks of mechanistic steps spanning both the main reaction pathway as well as immediate and downstream side reactions. Because experimental values of the kinetic rate constants for individual mechanistic transforms are extremely sparse, these constants are approximated here using Mayr’s nucleophilicity and electrophilicity parameters fine-tuned by correction terms grounded in linear free-energy relationships. With this formalism, the model trained on the mechanistic networks of only 20 – but mechanistically- and yield-diverse MCRs – transfers well to newly discovered MCRs that are based on markedly different mechanisms and types of individual mechanistic transforms. These results suggest that mechanistic-level approach to yield estimation may be a useful alternative to models that are derived from full-reaction data and lack information about yield-lowering side reactions.

Date: 2024
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DOI: 10.1038/s41467-024-54550-1

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