Reproducing Reaction Mechanisms with Machine‐Learning Models Trained on a Large‐Scale Mechanistic Dataset

Abstract: Mechanistic understanding of organic reactions can facilitate reaction development, impurity prediction, and in principle, reaction discovery. While several machine learning models have sought to address the task of predicting reaction products, their extension to predicting reaction mechanisms has been impeded by the lack of a corresponding mechanistic dataset. In this study, we construct such a dataset by imputing intermediates between experimentally reported reactants and products using expert reaction templates and train several machine learning models on the resulting dataset of 5,184,184 elementary steps. We explore the performance and capabilities of these models, focusing on their ability to predict reaction pathways and recapitulate the roles of catalysts and reagents. Additionally, we demonstrate the potential of mechanistic models in predicting impurities, often overlooked by conventional models. We conclude by evaluating the generalizability of mechanistic models to new reaction types, revealing challenges related to dataset diversity, consecutive predictions, and violations of atom conservation.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Reproducing Reaction Mechanisms with Machine‐Learning Models Trained on a Large‐Scale Mechanistic Dataset ; day:03 ; month:09 ; year:2024 ; extent:11
Angewandte Chemie ; (03.09.2024) (gesamt 11)

Creator
Joung, Joonyoung F.
Fong, Mun Hong
Roh, Jihye
Tu, Zhengkai
Bradshaw, John
Coley, Connor W.

DOI
10.1002/ange.202411296
URN
urn:nbn:de:101:1-2409041406056.764763348821
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:23 AM CEST

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Associated

  • Joung, Joonyoung F.
  • Fong, Mun Hong
  • Roh, Jihye
  • Tu, Zhengkai
  • Bradshaw, John
  • Coley, Connor W.

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