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  1. 7001
    “…Therefore, we present a CS and Robotics integration model and its validation through a large-scale pilot study in the administrative region of the Canton Vaud in Switzerland. Approximately 350 primary school teachers followed a mandatory CS continuing professional development program (CPD) of adapted format with a curriculum scaffolded by instruction modality. …”
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    A computer science and robotics integration model for primary school: evaluation of a large-scale in-service K-4 teacher-training program
  2. 7002
    “…It allows us to design a transvinylation/ring-closing metathesis (RCM) cascade reaction leading to the formation of endocyclic enol lactones from unsaturated carboxylic acids in an one-pot procedure. …”
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    Dual Activity of Grubbs-Type Catalyst in the Transvinylation of Carboxylic Acids and Ring-Closing Metathesis Reactions
  3. 7003
    “…Intramolecular acylation yielding macrocyclic lactones can also be performed. The developed transformation has bolstered the synthetic utility of cyclopropanols as pluripotent intermediates in diversity-oriented synthesis of bioactive natural products and their synthetic congeners. …”
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    Generation of Mixed Anhydrides via Oxidative Fragmentation of Tertiary Cyclopropanols with Phenyliodine(III) Dicarboxylates
  4. 7004
    “…Here, we show that while Marinobacter do not produce or utilize an acylhomoserine lactone (AHL)-based quorum sensing system, “sibling” colonies of many species of Marinobacter exhibit a form of non-lethal chemical communication that prevents colonies from overrunning each other’s niche space. …”
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    Loss of Motility as a Non-Lethal Mechanism for Intercolony Inhibition (“Sibling Rivalry”) in Marinobacter
  5. 7005
    “…At 120 °C, the carboxylic groups are protected by esterification, which prevents lactonization in the absence of water or acidic sites. …”
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    H(2)‐Free Re‐Based Catalytic Dehydroxylation of Aldaric Acid to Muconic and Adipic Acid Esters
  6. 7006
    por Li, Xiaoyu, Golden, Jennifer E.
    Publicado 2021
    “…Copper(II) chloride was essential to retaining enantiopurity, and reaction component structural changes were well tolerated, resulting in an efficient, all‐in‐one procedure that promotes sequential coupling, lactonization, aminolysis, and cyclization in good yields. …”
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    Construction of N‐Boc‐2‐Alkylaminoquinazolin‐4(3H)‐Ones via a Three‐Component, One‐Pot Protocol Mediated by Copper(II) Chloride that Spares Enantiomeric Purity
  7. 7007
    “…The members from this genus produce sesquiterpene lactones, diterpenes, longipinanes, and flavonoids as the main types of phytochemicals. …”
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    Stevia Genus: Phytochemistry and Biological Activities Update
  8. 7008
    “…Switzerland provides an optimal quasi‐experiment: 11 out of 26 cantons introduced a baby bonus during the last 50 years at different points in time. …”
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    Baby bonus in Switzerland: Effects on fertility, newborn health, and birth‐scheduling
  9. 7009
    “…Marine-associated Cladosporium species have attracted considerable interest because of their ability to produce a wide array of metabolites, including alkaloids, macrolides, diketopiperazines, pyrones, tetralones, sterols, phenolics, terpenes, lactones, and tetramic acid derivatives that possess versatile bioactivities. …”
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    Untapped Potential of Marine-Associated Cladosporium Species: An Overview on Secondary Metabolites, Biotechnological Relevance, and Biological Activities
  10. 7010
    por Zhao, Dan, Hu, Meigeng, Ma, Guoxu, Xu, Xudong
    Publicado 2021
    “…Five new compounds called Pestalotis A–E (1–5), comprising three monoterpene-lactone compounds (1–3), one tetrahydrobenzofuran derivative (4), and one sesquiterpene (5), were isolated from the EtOAc extract of Pestalotiopsis sp. …”
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    Five New Terpenes with Cytotoxic Activity from Pestalotiopsis sp.
  11. 7011
    “…As a control, the T3P reaction of a 3-(2-thienyl) THIQ was performed in the absence of the amine, and the products were characterized: among them are three dimeric allenes and two dimeric lactones. A nucleophile-promoted ketene dimerization process subject to subtle steric and stereoelectronic effects accounts for their formation. …”
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    Stereoelectronic Features of a Complex Ketene Dimerization Reaction
  12. 7012
    “…However, acid oxidation generates additional oxygen containing groups, including epoxides, ketones, aldehydes, lactones, and alcohols. We present a method to specifically enrich the carboxylic acid content on fluorescent nanodiamond (FND) surfaces. …”
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    General Method to Increase Carboxylic Acid Content on Nanodiamonds
  13. 7013
    “…In addition to its mechanistic implication, the reaction granted access to various lactones possessing up to four stereocenters as a single diastereomer, conveniently prepared in only two catalytic steps from easily accessible achiral cyclopropenes.…”
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    Mechanistic Insights on the Selectivity of the Tandem Heck–Ring-Opening of Cyclopropyldiol Derivatives
  14. 7014
    “…Securinine, a unique indolizidine alkaloid combining four cycles, “6-azobicyclo[3.2.1]octane” as a key structure fused with α,β-unsaturated-γ-lactone and piperidine ring, has a broad spectrum of actions including anti-inflammatory, antibacterial, neuroprotective and antitumor, and has been previously used in medical practice. …”
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    Unique indolizidine alkaloid securinine is a promising scaffold for the development of neuroprotective and antitumor drugs
  15. 7015
    “…A series of γ-lactone derivatives (E)-4-arylidene-5-oxotetrahydrofuran derivatives were synthesized via a tandem Passerini 3CC/S(N) cyclization microwave-assisted one-pot method efficiently starting from Baylis Hillman acids, aryl glyoxals and isocyanides, and using ionic liquid as reaction medium. …”
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    Green synthesis, crystal structure, and antifungal activities of (E)-4-arylidene-5-oxotetrahydrofuran
  16. 7016
    “…The new compounds are isolated from soil fungi, We divided these compounds into seven categories, including alkaloids, terpenoids, steroids, ketones, phenylpropanoids, quinones, esters, lactones, etc. In addition, the biological activities and structure–activity relationships of these compounds have also been fully discussed. …”
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    The Novel Compounds with Biological Activity Derived from Soil Fungi in the Past Decade
  17. 7017
    “…In the presence of alkene, this radical species acts as a unique intermediate that, under solvent‐controlled reaction conditions, delivers a wide range of gem‐difluorinated γ‐lactams, γ‐lactones, and promotes oxy‐perfluoroalkylation. These protocols are flow‐ and batch‐scalable, possess excellent chemo‐ and regioselectivity, and can be used for the late‐stage diversification of complex molecules.…”
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    Photoredox Activation of Anhydrides for the Solvent‐Controlled Switchable Synthesis of gem‐Difluoro Compounds
  18. 7018
    “…Previous reports have mainly considered changes on the aromatic rings and at the benzylic carbons of the compounds, whilst the effects of substituents in the lactone, at the C-9′ position, have been relatively unexplored. …”
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    Synthesis and Anti-Proliferative Evaluation of Arctigenin Analogues with C-9′ Derivatisation
  19. 7019
    “…This work proposes a novel method for whole soybean flour tofu preparation by combining calcium sulfate (CS) and glucose-delta-lactone (GDL) coagulation. Importantly, the characteristics of the synthesized gel and the quality were studied. …”
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    Influence of calcium sulfate incorporated with gluconolactone coagulant on the quality of whole soybean flour tofu
  20. 7020
    “…The PLA2G6 inhibitor, bromoenol lactone, abolished oxytocin-stimulated production of PGF2alpha. …”
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    Distinct phospholipase A2 enzymes regulate prostaglandin E2 and F2alpha production by bovine endometrial epithelial cells
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