Articles with "synthesis cyclic" as a keyword



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Catalytic synthesis of cyclic carbonates from epoxides and carbon dioxide by magnetic UiO-66 under mild conditions

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Published in 2017 at "Applied Organometallic Chemistry"

DOI: 10.1002/aoc.3656

Abstract: The catalytic activity of UiO-66@Fe3O4@SiO2 catalyst was investigated in the fixation of carbon dioxide with epoxides under mild conditions. In this manner, a facile magnetization of UiO-66 was achieved simultaneously by simply mixing this metal–organic… read more here.

Keywords: mild conditions; carbon; synthesis cyclic; carbon dioxide ... See more keywords
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Diastereoselective synthesis of a cyclic diamide-bridged biphenyl as chiral atropos ligand.

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Published in 2022 at "Chirality"

DOI: 10.1002/chir.23434

Abstract: Chiral compounds with a 1,2-diamine structure motif and their derivatives are of great interest in organic chemistry and are broadly used in asymmetric transformations, as chiral auxiliaries, (co)ligands, and ligand core structure. Here, we present… read more here.

Keywords: diastereoselective synthesis; atropos; ligand; diamide bridged ... See more keywords
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Efficient Synthesis of Cyclic Carbonates from Unsaturated Acids and Carbon Dioxide and their Application in the Synthesis of Biobased Polyurethanes.

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Published in 2021 at "ChemPlusChem"

DOI: 10.1002/cplu.202100079

Abstract: Bio-derived furan- and diacid-derived cyclic carbonates have been synthesized in high yields from terminal epoxides and CO2 . Furthermore, four highly substituted terpene-derived cyclic carbonates were isolated in good yields with excellent diastereoselectivity in some… read more here.

Keywords: synthesis cyclic; efficient synthesis; unsaturated acids; carbonates unsaturated ... See more keywords
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APPLICATION OF BF3•Et2O IN THE SYNTHESIS OF CYCLIC ORGANIC PEROXIDES

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Published in 2020 at "Chemistry of Heterocyclic Compounds"

DOI: 10.1007/5956

Abstract: A summary of recent applications of Lewis acid BF3·Et2O as a catalyst in the synthesis of cyclic organic peroxides is presented. read more here.

Keywords: cyclic organic; organic peroxides; synthesis cyclic; bf3 et2o ... See more keywords
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Three Methods for the Solution Phase Synthesis of Cyclic Peptides.

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Published in 2022 at "Methods in molecular biology"

DOI: 10.1007/978-1-0716-1689-5_4

Abstract: Cyclic peptides, which often exhibit interesting biological properties, can be obtained by macrolactamization of adequately protected linear peptide chains. Because of the remarkable biological properties, methods for the efficient cyclization of peptides are of high… read more here.

Keywords: phase synthesis; three methods; synthesis cyclic; methods solution ... See more keywords
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Synthesis of cyclic D-(+)-camphoric acid imides and study of their antiviral activity

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Published in 2020 at "Chemistry of Heterocyclic Compounds"

DOI: 10.1007/s10593-020-02728-y

Abstract: Several D-(+)-camphoric acid imides, not previously described in the literature, were synthesized with good yields. The synthesis of previously known imides was improved. The cytotoxicity and antiviral activity of all synthesized imides were studied. read more here.

Keywords: antiviral activity; synthesis cyclic; camphoric acid; acid imides ... See more keywords
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Application of BF3·Et2O in the synthesis of cyclic organic peroxides (microreview)

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Published in 2020 at "Chemistry of Heterocyclic Compounds"

DOI: 10.1007/s10593-020-02785-3

Abstract: A summary of recent applications of Lewis acid BF3·Et2O as a catalyst in the synthesis of cyclic organic peroxides is presented. read more here.

Keywords: cyclic organic; organic peroxides; synthesis cyclic; bf3 et2o ... See more keywords
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First total synthesis of cyclic pentadepsipeptides Hikiamides A–C

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Published in 2018 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2018.01.096

Abstract: Abstract The first total syntheses of naturally occurring cyclodepsipeptides Hikiamides A–C are described. The key linear pentapeptide precursors, prepared efficiently via Fmoc-solid-phase synthesis, were cyclized in dilute solution to provide the target Hikiamides A–C. The… read more here.

Keywords: synthesis cyclic; pentadepsipeptides hikiamides; first total; total synthesis ... See more keywords
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Synthesis of cyclic olefins via Mitsunobu C-alkylation followed by Ramberg-Bäcklund ring contraction

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Published in 2018 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2018.06.014

Abstract: Abstract Cyclic olefins were prepared via a novel synthetic approach that involves the formation of two C C bonds in a potentially stereoselective fashion. The first bond is formed by employing a Mitsunobu dehydrative C-alkylation;… read more here.

Keywords: olefins via; synthesis cyclic; cyclic olefins; ring contraction ... See more keywords
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Ascorbic Acid as a Bifunctional Hydrogen Bond Donor for the Synthesis of Cyclic Carbonates from CO2 under Ambient Conditions

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Published in 2017 at "ACS Sustainable Chemistry & Engineering"

DOI: 10.1021/acssuschemeng.7b01650

Abstract: Readily available ascorbic acid was discovered as an environmentally benign hydrogen bond donor for the synthesis of cyclic organic carbonates from CO2 and epoxides in the presence of nucleophilic cocatalysts. The ascorbic acid/TBAI (TBAI: tetrabutylammonium… read more here.

Keywords: donor synthesis; carbonates co2; synthesis cyclic; hydrogen bond ... See more keywords
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Diverse Catalytic Reactions for the Stereoselective Synthesis of Cyclic Dinucleotide MK-1454.

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Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c12106

Abstract: As practitioners of organic chemistry strive to deliver efficient syntheses of the most complex natural products and drug candidates, further innovations in synthetic strategies are required to facilitate their efficient construction. These aspirational breakthroughs often… read more here.

Keywords: reactions stereoselective; diverse catalytic; synthesis; stereoselective synthesis ... See more keywords