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Related Concept Videos

Preparation of Carboxylic Acids: Carboxylation of Grignard Reagents01:13

Preparation of Carboxylic Acids: Carboxylation of Grignard Reagents

Carboxylic acids can be prepared by the carboxylation of Grignard reagents (RMgX). This method is convenient for converting alkyl (primary, secondary or tertiary), vinyl, benzyl, and aryl halides to carboxylic acids with one additional carbon than the starting RMgX.
Synthesis of α-Substituted Carbonyl Compounds: The Stork Enamine Reaction01:26

Synthesis of α-Substituted Carbonyl Compounds: The Stork Enamine Reaction

α-Substituted ketones or aldehydes can be synthesized from enamines by the Stork enamine reaction, named after its pioneer Gilbert Stork. Enamines are useful synthetic intermediates where the lone pair on nitrogen is in conjugation with the C=C bond. They resemble enolate ions, as the resonance forms of both species have a nucleophilic α carbon.
Synthesis and Decomposition Reactions02:17

Synthesis and Decomposition Reactions

Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes.
Reactions of α-Halocarbonyl Compounds: Nucleophilic Substitution01:17

Reactions of α-Halocarbonyl Compounds: Nucleophilic Substitution

Nucleophilic substitution in α-halocarbonyl compounds can be achieved via an SN2 pathway. The reaction in α-haloketones is generally carried out with less basic nucleophiles. The use of strong basic nucleophiles leads to the generation of α-haloenolate ions, which often participate in other side reactions.
Nucleophilic Aromatic Substitution: Elimination–Addition01:11

Nucleophilic Aromatic Substitution: Elimination–Addition

Simple aryl halides do not react with nucleophiles. However, nucleophilic aromatic substitutions can be forced under certain conditions, such as high temperatures or strong bases. The mechanism of substitution under such conditions involves the highly unstable and reactive benzyne intermediate. Benzyne contains equivalent carbon centers at both ends of the triple bond, each of which is equally susceptible to nucleophilic attack. This 50–50 distribution of products is confirmed through isotopic...
Predicting Reaction Outcomes02:24

Predicting Reaction Outcomes

Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...

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Curation of Computational Chemical Libraries Demonstrated with Alpha-Amino Acids
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Curation of Computational Chemical Libraries Demonstrated with Alpha-Amino Acids

Published on: April 13, 2022

Discovering CO2-Reactive Carbanions via Property-Guided Generative AI.

Bo Li1, De-En Jiang1

  • 1Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States.

Journal of Chemical Information and Modeling
|June 10, 2026
PubMed
Summary
This summary is machine-generated.

Researchers used AI to design new carbanions for efficient carbon dioxide (CO2) capture. This approach accelerates the discovery of materials for CO2 chemisorption and conversion technologies.

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Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
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Published on: November 9, 2019

Related Experiment Videos

Last Updated: Jun 12, 2026

Curation of Computational Chemical Libraries Demonstrated with Alpha-Amino Acids
08:21

Curation of Computational Chemical Libraries Demonstrated with Alpha-Amino Acids

Published on: April 13, 2022

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
07:36

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

Area of Science:

  • Chemistry
  • Materials Science
  • Artificial Intelligence

Background:

  • Efficient carbon dioxide (CO2) chemisorption is crucial for developing advanced capture and conversion technologies.
  • Designing effective carbanions is a key strategy for improving CO2 reactivity.
  • Existing methods for discovering novel carbanions are often time-consuming and limited in scope.

Purpose of the Study:

  • To develop a computational approach for generating novel carbanions with high CO2 chemisorption reactivity.
  • To integrate a nucleophilicity prediction model with a generative AI model for carbanion design.
  • To identify design principles for carbanions with enhanced CO2 capture capabilities.

Main Methods:

  • Utilized directed message-passing neural networks trained on Mayr's Reactivity Database to build a nucleophilicity prediction model.
  • Employed a Hierarchical Variational Autoencoder (HierVAE) for generating novel carbanion structures.
  • Fine-tuned the generative model's latent space using predicted reactivity (log k) values.
  • Performed Density Functional Theory (DFT) calculations to validate the reactivity of top candidate carbanions.

Main Results:

  • Generated structurally diverse carbanions exhibiting strong CO2 reactivity and high success rates.
  • Identified key structural trends, including the importance of alpha-substitution and electron-withdrawing groups.
  • DFT validation confirmed good agreement for electronically stabilized carbanions, defining the model's applicability domain.
  • Demonstrated the potential for property-guided generative AI in discovering materials for CO2 capture.

Conclusions:

  • Generative AI, guided by reactivity predictions, is a powerful tool for discovering novel carbanions.
  • The developed approach significantly accelerates the design process for materials targeting CO2 chemisorption.
  • This study provides a foundation for designing improved carbanions for efficient room-temperature CO2 capture and conversion.