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A simple method is explored for the scission of C-CN bonds into aldehyde and CN in air. The transformation was mediated by chloride anions. The cyanide anions were extracted from the reaction solution to form (EtN)[Zn(CN)] and (EtN)[Ni(CN)]. A chloride-induced reaction mechanism is proposed based on experimental studies and DFT calculations. This work might guide the study of halogen catalysts for C-C bond cleavage.
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http://dx.doi.org/10.1039/d3cc04339h | DOI Listing |
J Am Chem Soc
September 2025
Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080-3021, United States.
The direct transformation of C-H bonds into C-C bonds via cross-dehydrogenative coupling (CDC) represents a powerful strategy in synthetic chemistry, enabling streamlined bond construction without the need for prefunctionalized substrates. While traditional CDC approaches rely on polar mechanisms and preactivation of one of the C-H partners, recent advances have introduced radical-based strategies that employ a hydrogen atom transfer (HAT) approach to access carbon-centered radicals from unactivated substrates. Herein, we report a nickel-catalyzed CDC reaction between aldehydes and alkenes for the synthesis of skipped enones, leveraging aryl radicals as intermolecular HAT agents.
View Article and Find Full Text PDFInt Immunopharmacol
September 2025
School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India.
Over the past few decades, the scientific perspective on gut microbiota has undergone a profound transformation, particularly with the emergence and advancement of microbiome research. Next-generation sequencing technologies have emerged as a foundational tool in microbiome research, facilitating comprehensive characterization of microbial communities across diverse sample types and ecological niches. Significant alterations in gut microbiota composition have been observed in disease states compared to healthy individuals, suggesting a direct association between gut dysbiosis and host health status.
View Article and Find Full Text PDFBiomaterials
August 2025
Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA. Electronic address:
Wearable bioelectronics have transformed modern biomedical applications by enabling seamless integration with biological tissues, providing continuous, comprehensive, and personalized healthcare. Skin cancer, particularly melanoma, poses a significant clinical challenge due to its high metastatic potential and associated mortality. Traditional diagnostic approaches face limitations in accuracy, accessibility, and reproducibility, while existing treatments are often constrained by systemic toxicity and therapeutic resistance.
View Article and Find Full Text PDFMenopause
September 2025
Department of Speech Language Pathology and Audiology, Northeastern University, Boston, MA.
Importance And Objective: Voice changes during menopause affect patients' communication and quality of life. This narrative review aims to provide a comprehensive exploration of voice changes during menopause. It presents objective and subjective/symptomatic changes as well as treatment options for this population.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
School of Medicine, Chongqing University, Chongqing 400044, China.
Engineering functional exosomes represents a cutting-edge approach in biomedicine, holding the promise to transform targeted therapy. However, challenges such as achieving consistent modification and scalability have limited their wider adoption. Herein, we introduce a universal and effective strategy for engineering multifunctional exosomes through cell fusion.
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