Catalyst-free transfer hydrogenation of activated alkenes exploiting isopropanol as the sole and traceless reductant
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2023-01-21
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Language
en
Pages
746-754
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Green Chemistry, Volume 25, issue 2
Abstract
Both metal-catalyzed and organocatalytic transfer hydrogenation reactions are widely employed for the reduction of C = O and C N bonds. However, selective transfer hydrogenation reactions of C C bonds remain challenging. Therefore, the chemoselective transfer hydrogenation of olefins under mild conditions and in the absence of metal catalysts, using readily available and inexpensive reducing agents (i.e. primary and secondary alcohols), will mark a significant advancement towards the development of green transfer hydrogenation strategies. Described herein is an unconventional catalyst-free transfer hydrogenation reaction of activated alkenes using isopropanol as an eco-friendly reductant and solvent. The reaction gives convenient synthetic access to a wide range of substituted malonic acid half oxyesters (SMAHOs) in moderate to good yields. Mechanistic investigations point towards an unprecedented hydrogen bond-assisted transfer hydrogenation process.Description
Funding Information: L. K. gratefully acknowledges funding from the National Science Foundation (CHE-2102462), National Institutes of Health (R35 GM-136373), Robert A. Welch Foundation (C-1764). A. R. was supported by the Mexican National Council for Science and Technology (CONACyT) Ph.D. Fellowship Program (958417). Publisher Copyright: © 2023 The Royal Society of Chemistry.
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Das, T K, Rodriguez Treviño, A M, Pandiri, S, Irvankoski, S, Siitonen, J H, Rodriguez, S M, Yousufuddin, M & Kürti, L 2023, ' Catalyst-free transfer hydrogenation of activated alkenes exploiting isopropanol as the sole and traceless reductant ', Green Chemistry, vol. 25, no. 2, pp. 746-754 . https://doi.org/10.1039/d2gc04315g