ArticleOrganic letters2023
Unexpected Diastereomer Formation and Interconversions in Cyclohexane-1,2-diacetal Derivatization of a Glucuronic Acid Thioglycoside.
Article in Organic letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
Funding
Abstract
Reactions of a glucuronic acid (GlcA) β-thioglycoside with cyclohexadione show initial formation of the two anticipated all-trans decalin-type O2,O3 and O3,O4 cyclohexane-1,2-diacetals (CDAs) along with an epimer of the main O2,O3 acetal. This trans-cis isomer is then interconverted leading to higher amounts of the two all-trans products. Isomerization studies indicate slow interconversion between the all-trans CDA acetals, with only one undergoing significant interconversion with the minor 2,3-diastereomer. Crystal structures of all three isomers are included. These findings are relevant to other uses of CDA protections where occurrence of apparently disfavored isomers may be occurring, along with interconversions between CDA isomers.
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