We report a general protocol for -C-H fluoroalkoxylation of benzaldehydes and benzylic amines utilizing an inexpensive amino amide as a transient directing group. In the presence of an electrophilic fluorinating bystanding oxidant and fluorinated alcohols, a wide range of benzaldehydes and benzylic amines could be oxygenated selectively at the ortho positions to afford fluoroalkyl aryl ethers. This elegant approach would provide appealing strategies for synthesis of drug molecules and natural products.
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http://dx.doi.org/10.1039/d2ra00241h | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Griffith University, Griffith School of Environment, Centre for Clean Environment and Energy, 4222, Brisbane, AUSTRALIA.
Converting biomass-derived molecules like 5-hydroxymethylfurfural (HMF) into value-added products alongside hydrogen production using renewable energy offers significant opportunities for sustainable chemical and energy production. Yet, HMF electrooxidation requires strong alkaline conditions and membranes for efficient conversion. These harsh conditions destabilize HMF, leading to humin formation and reduced product purity, meanwhile membranes increase costs.
View Article and Find Full Text PDFJ Org Chem
January 2025
Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, India.
A streamlined strategy for the one-pot synthesis of isoxazolone analogues has been developed through an acceptorless dehydrogenative annulation (ADA) pathway by employing new Ru(II) hydride complexes as effective catalysts. New Ru(II) complexes () tailored with N̂O chelating carbazolone benzhydrazone ligands were synthesized and their formation was confirmed using analytical and spectral techniques including FT-IR and NMR. The structural configuration of the complexes featuring an octahedral geometry around the Ru(II) ion was precisely determined by single-crystal X-ray diffraction analysis.
View Article and Find Full Text PDFPhysiol Plant
December 2024
Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow, Utter Pradesh, India.
Transgenic Ocimum sanctum plants were engineered to produce vanillin by overexpressing the VpVAN gene using Agrobacterium-mediated transformation. Positive transformants developed shoots within 4-5 weeks and were transferred to a root induction medium and four independent transformants with no observed adverse effects were kept for anlysis. Quantitative RT-PCR indicated significantly higher VpVAN expression in transgenic lines AG_3 and AG_1, impacting the phenylpropanoid pathway and phenolic compound accumulation.
View Article and Find Full Text PDFSmall
December 2024
School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, Sepang, 43900, Malaysia.
Developing bifunctional electrocatalysts from earth-abundant first-row transition metals for large-scale hydrogen production through water electrolysis is both promising and challenging. This study presents a ternary layered double hydroxide (LDH) as a bifunctional electrocatalyst for the hydrogen evolution reaction (HER) and benzyl alcohol oxidation (BAOR). The synergy between 2D NiFeCo LDH and non-Ti-based NbCT MXene enhances electrochemical performance.
View Article and Find Full Text PDFPest Manag Sci
December 2024
Department of Pharmacy Practice, College of Pharmacy, University of Illinois, Champaign, IL, USA.
Background: A recent increase in severe fever with thrombocytopaenia syndrome (SFTS) virus cases in Korea has been observed. This virus attacks humans and animals, and no drug is available for its treatment. This study is investigating potential control measures targeting the causative agent, Haemaphysalis longicornis.
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