ArticleAngewandte Chemie (International ed. in English)2021
Biocatalytic Asymmetric Cyclopropanations via Enzyme-Bound Iminium Ion Intermediates.
Article in Angewandte Chemie (International ed. in English), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Engineering LmrR protein for L-proline-based asymmetric aldol biocatalysis.Nature communications · 2026Article
- Designing Enzymatic Reactivity with an Expanded Palette.Chembiochem : a European journal of chemical biology · 2025Review
- Iminium Catalysis in Natural Diels-Alderase.Nature catalysis · 2025Article
- Multifunctional Biocatalysts for Organic Synthesis.Journal of the American Chemical Society · 2024Review
- Enhancing the Peroxygenase Activity of a Cofactor-Independent Peroxyzyme by Directed Evolution Enabling Gram-Scale Epoxide Synthesis.Chemistry (Weinheim an der Bergstrasse, Germany) · 2022Article
- Unlocking New Reactivities in Enzymes by Iminium Catalysis.Angewandte Chemie (International ed. in English) · 2022Review
- Gene Fusion and Directed Evolution to Break Structural Symmetry and Boost Catalysis by an Oligomeric C-C Bond-Forming Enzyme.Angewandte Chemie (International ed. in English) · 2022Article
- Biocatalytic Asymmetric Cyclopropanations via Enzyme-Bound Iminium Ion Intermediates.Angewandte Chemie (International ed. in English) · 2021Article
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Authors and funding
5 authors.
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Abstract
Cyclopropane rings are an important structural motif frequently found in many natural products and pharmaceuticals. Commonly, biocatalytic methodologies for the asymmetric synthesis of cyclopropanes rely on repurposed or artificial heme enzymes. Here, we engineered an unusual cofactor-independent cyclopropanation enzyme based on a promiscuous tautomerase for the enantioselective synthesis of various cyclopropanes via the nucleophilic addition of diethyl 2-chloromalonate to α,β-unsaturated aldehydes. The engineered enzyme promotes formation of the two new carbon-carbon bonds with excellent stereocontrol over both stereocenters, affording the desired cyclopropanes with high diastereo- and enantiopurity (d.r. up to 25:1; e.r. up to 99:1). Our results highlight the usefulness of promiscuous enzymes for expanding the biocatalytic repertoire for non-natural reactions.
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