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Published in 2017 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.201700120
Abstract: Nanocrystalline ZSM-5 and Beta zeolites were evaluated as catalysts for the one-pot synthesis of a wide range of five-, six-, and seven-membered heterocyclic compounds. Seven-membered compounds were prepared by the reaction of o-phenylenediamine and ketones,…
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Keywords:
heterocyclic compounds;
reaction;
seven membered;
membered compounds ... See more keywords
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Published in 2017 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201700115
Abstract: The multicomponent reaction (MCR) of arylglyoxal, 4-hydroxycoumarin, and various cyclic 1,3-C,N-binucleophiles in acetic acid under microwave conditions provides fused five- or six- membered N-heterocycles depending on the ring size of the binucleophiles. 1,3-C,N-binucleophiles, such as…
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Keywords:
six membered;
cyclic binucleophiles;
membered heterocycles;
fused five ... See more keywords
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Published in 2018 at "Biochimie"
DOI: 10.1016/j.biochi.2018.05.002
Abstract: Quadruplexes are noncanonical DNA structures that arise in guanine rich loci and have important biological functions. Classically, quadruplexes contain four stacked intramolecular G-tetrads. Surprisingly, although some algorithms allow searching for longer than 4G tracts for…
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Keywords:
six stacked;
bioinformatics analyses;
evidence;
intramolecular tetrads ... See more keywords
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Published in 2017 at "Comptes Rendus Chimie"
DOI: 10.1016/j.crci.2017.01.005
Abstract: Abstract Different types of starting materials have been designed and their ability to undergo cascade reactions has been investigated. New polycycles containing five-, six-, and seven-membered rings are described via original cascade reactions. The process…
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Keywords:
cascade reactions;
polycycles containing;
containing five;
seven membered ... See more keywords
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Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2019.02.030
Abstract: Abstract Cascade lipase-catalyzed lactonization has been applied to dynamic hemithioacetal formation, leading to efficient five- and six-membered lactone synthesis as well as chiral discrimination. Solvent-dependent regioselectivity was observed for the selective formation of 1,3-oxathiolan-5-one and…
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Keywords:
five six;
six membered;
pot synthesis;
one pot ... See more keywords
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Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.3c00618
Abstract: Protonation of C-M bonds and its microscopic reverse, metalation of C-H bonds, are fundamental steps in a variety of metal-catalyzed processes. As such, studies on protonation of C-M bonds can shed light on C-H activation.…
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Keywords:
transition state;
five six;
seven membered;
transition ... See more keywords
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Published in 2018 at "RSC Advances"
DOI: 10.1039/c8ra00669e
Abstract: Five- and six-membered bicyclic carbonates are valuable raw materials for the synthesis of environmentally friendly polymers, such as polycarbonates or non-isocyanate poly(hydroxyurethane)s. However, bicyclic diglycerol dicarbonates bearing five-membered and six-membered rings have been never reported…
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Keywords:
novel high;
dicarbonate;
six membered;
synthesis ... See more keywords
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Published in 2018 at "Synthetic Communications"
DOI: 10.1080/00397911.2017.1406521
Abstract: ABSTRACT A considerable attention has been paid on the use of ionic liquids in chemical research. Modern synthetic chemistry is benefited as ionic liquid methodology provided an environmentally benign approach. In comparison to traditional processes…
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Keywords:
perspectives ionic;
six membered;
synthesis five;
membered heterocycles ... See more keywords
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Published in 2019 at "Synthetic Communications"
DOI: 10.1080/00397911.2019.1622732
Abstract: Abstract Heterocycles are present in the drugs and pesticides in a major proportion and development of new strategies for the synthesis of these compounds is attractive topic for the synthetic and medicinal chemists. Synthesis of…
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Keywords:
six membered;
photochemical reactions;
reactions five;
polyheterocycles synthesis ... See more keywords
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Published in 2022 at "Acta chimica Slovenica"
DOI: 10.17344/acsi.2021.7021
Abstract: Nitrogen-containing heterocycles have been extensively studied due to their broad biological and pharmaceutical applications. In this study, we synthesized five- and six-membered nitrogen-containing rings through one-pot multicomponent reaction using an aluminium-doped cobalt ferrite nano-catalyst. The…
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Keywords:
five six;
facile synthesis;
catalyst;
synthesis bioactive ... See more keywords
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Published in 2023 at "International Journal of Environmental Research and Public Health"
DOI: 10.3390/ijerph20053974
Abstract: The left-behind children (LBC), separated from their mother/father or parents for a long period of time, have long been discussed as a subject of concern in China. Existing research has concluded that rural children who…
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Keywords:
understanding;
five six;
left behind;
behind children ... See more keywords