Mostrando 761 - 780 Resultados de 2,278 Para Buscar '"chemist"', tiempo de consulta: 0.15s Limitar resultados
  1. 761
    “…The result is a must-have for physicochemists, chemists, physicists, spectroscopists and materials scientists.…”
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  2. 762
    “…Ring expansion reactions fascinate synthetic chemists owing to their importance in synthesizing biologically active compounds and their efficacy in medicinal chemistry. …”
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  3. 763
    por Li, Yanan, Huang, Yekai, Li, Zhi, Sun, Jianan
    Publicado 2023
    “…Therefore, approaches to functionalizing existing C–H bonds of free phenols have continuously attracted the attention of organic chemists. In this review, we summarize the current knowledge and recent advances in ortho-, meta-, and para-selective C–H functionalization of free phenols in the last five years.…”
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  4. 764
    por Buurma, Niklaas J., Bagley, Scott W.
    Publicado 2023
    “…Chemists know the value of looking at a reaction for clues about reaction progress and success, but what-it-looks-like has never been quantified. …”
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  5. 765
    “…[Image: see text] Alongside enantioselective catalysis, synthetic chemists are often confronted by the challenge of achieving catalyst control over the relative configuration to stereodivergently access desired diastereomers. …”
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  6. 766
    “…The catalytic synthesis of nitrogen-containing heterocycles is of great importance to medicinal and synthetic chemists, and also a challenge for modern chemical methodology. …”
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  7. 767
  8. 768
    “…Development of efficient tandem reactions to build useful compounds and apply them to the synthesis of natural products is not only a significant challenge but also an important goal for chemists. Here we describe a tandem C–H oxidation/cyclization/rearrangement of isochroman-derived allylic silylethers, promoted by DDQ and InCl(3). …”
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  9. 769
    “…[Image: see text] While preparative electrolysis of organic molecules has been an active area of research over the past century, modern synthetic chemists have generally been reluctant to adopt this technology. …”
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  10. 770
    “…Morphine has been a target for synthetic chemists since Robinson proposed its correct structure in 1925, resulting in a large number of total syntheses of morphine alkaloids. …”
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  11. 771
    “…Donor–acceptor Stenhouse adducts (DASAs) are gaining attention from organic and material chemists due to their visible light-stimulated photochromic properties. …”
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  12. 772
    por Zhang, Zhoupeng, Tang, Wei
    Publicado 2018
    “…This communication provides an overview of common strategies in the area of drug metabolism for improving PK/PD and safety profiles of drug candidates; these include, but are not limited to, collaboration with medicinal chemists on structure–activity relationships (SAR) to overcome high clearance, using deuterium replacement to further optimize a lead, prodrug approaches to circumvent formulation and delivery difficulties, and addressing issues such as species differences in metabolism, drug–drug interactions (DDI) and formation of reactive metabolites.…”
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  13. 773
    “…We define chemical intuition as the collection of unwritten guidelines used by synthetic chemists to find the right synthesis conditions. As (partially) failed experiments usually remain unreported, we have reconstructed a typical track of failed experiments in a successful search for finding the optimal synthesis conditions that yields HKUST-1 with the highest surface area reported to date. …”
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  14. 774
    por Agrawal, Neetu, Mishra, Pradeep
    Publicado 2018
    “…This review is an endeavor to highlight the progress in the chemistry and biological activity of isoxazole derivatives which could provide a low-height flying bird’s eye view of isoxazole derivatives to the medicinal chemists for the development of clinically viable drugs using this information.…”
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  15. 775
    “…Meanwhile, SAR (Structure-Activity Relationship) investigations have drawn attentions among medicinal chemists, along with a plenty of analogues have been derived for multiple targets. …”
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  16. 776
    “…[Image: see text] Molecular editing such as insertion, deletion, and single atom exchange in highly functionalized compounds is an aspirational goal for all chemists. Here, we disclose a photoredox protocol for the replacement of a single fluorine atom with hydrogen in electron-deficient trifluoromethylarenes including complex drug molecules. …”
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  17. 777
    por Maity, Debabrata
    Publicado 2020
    “…To understand the molecular interactions, present in living organisms and their environments, chemists are trying to create novel chemical tools. …”
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  18. 778
    por Gruene, Tim, Mugnaioli, Enrico
    Publicado 2021
    “…The aim of this review is to provide general and practical information to structural chemists interested in stepping into this emerging field. …”
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  19. 779
    “…The versatile use of c-CLEnA demonstrates that this immobilization methodology is a valuable addition to the toolbox of synthetic chemists.…”
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  20. 780
    “…The use of flow reactors in biocatalysis has increased significantly in recent years. Chemists have begun to design flow systems that even allow new biocatalytic reactions to take place. …”
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