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Discovery of Novel Neonicotinoids with Conjugated Diene Enabled by Cascade Allylation/Isomerization Synthetic Methodology.
J Agric Food Chem
January 2025
Shanghai Key Laboratory of Chemical Biology & School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
As one of the most significant insecticides, neonicotinoids have played a pivotal role in crop protection and public sanitation. However, the high resistance and bee toxicity of neonicotinoid insecticides have attracted considerable attention. Herein, a series of neonicotinoid compounds with conjugated diene moieties were synthesized through the cascade allylation/isomerization reaction.
View Article and Find Full Text PDFEnantioselective Heck/Tsuji-Trost reaction of flexible vinylic halides with 1,3-dienes.
Nat Commun
January 2025
College of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, P. R. China.
The enantioselective domino Heck/cross-coupling has emerged as a powerful tool in modern chemical synthesis for decades. Despite significant progress in relative rigid skeleton substrates, the implementation of asymmetric Heck/cross-coupling cascades of highly flexible haloalkene substrates remains a challenging and and long-standing goal. Here we report an efficient asymmetric domino Heck/Tsuji-Trost reaction of highly flexible vinylic halides with 1,3-dienes enabled by palladium catalysis.
View Article and Find Full Text PDFCellulose-based photo-curable chiral nematic ink for direct-ink-writing 3D printing.
Carbohydr Polym
March 2025
Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China. Electronic address:
3D printing technology is one of the most promising strategies for constructing topological functional materials. The development of functional inks is a core issue in the technical development of 3D printing technology. In this study, we engineered photonic crystal inks based on chiral nematic liquid crystals of cellulose derivative, i.
View Article and Find Full Text PDFSynthesis and characterization of photo-cross-linkable quince seed-based hydrogels for soft tissue engineering applications.
Carbohydr Polym
March 2025
Institute of Biomedical Engineering, Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada; Azrieli Research Center, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC H3T 1C5, Canada; Montreal TransMedTech Institute, Montreal, QC H3T 1J4, Canada. Electronic address:
The convenience, versatility, and biocompatibility of photocrosslinkable hydrogel precursors make them promising candidates for developing tissue engineering scaffolds. However, the current library of photosensitive materials is limited. This study reports, for the first time, the modification of quince seed mucilage (QS) with glycidyl methacrylate (GM), resulting in the synthesis of methacrylated QS (QSGM).
View Article and Find Full Text PDFCross-diffusion waves by cellular automata modeling: Pattern formation in porous media.
Chaos
January 2025
Department of Civil Engineering, The University of Hong Kong, HKSAR 999077, China.
Porous earth materials exhibit large-scale deformation patterns, such as deformation bands, which emerge from complex small-scale interactions. This paper introduces a cross-diffusion framework designed to capture these multiscale, multiphysics phenomena, inspired by the study of multi-species chemical systems. A microphysics-enriched continuum approach is developed to accurately predict the formation and evolution of these patterns.
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