The development of the site-selective Suzuki-Miyaura cross-coupling of dibromoanthracene as an efficient strategy toward organic light emitting diodes (OLEDs) is disclosed in this article. An unprecedented step-economic palladacycle-promoted triple Suzuki coupling protocol allowed the synthesis of three new OLED emitters and could prove to be a useful general strategy for researchers working in this field. Characterization of the synthesized molecules by UV-vis spectroscopy and thermogravimetric analysis-differential scanning calorimetry followed by density functional theory studies of the different properties strongly confirms the derivatives possess more significant hole mobility character than electron transfer capability.
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http://dx.doi.org/10.1021/acsomega.7b00725 | DOI Listing |
Cancer Diagn Progn
January 2025
Department of Hepatology, Aso Iizuka Hospital, Iizuka, Japan.
Background/aim: The incidence of biliary tract cancers (BTC), including cholangiocarcinoma and gallbladder cancer, has been increasing worldwide. Approximately 70% of BTC patients have advanced disease at diagnosis, leading to a poor survival rate. Recent clinical trials have demonstrated that the addition of immune checkpoint inhibitors, such as durvalumab or pembrolizumab, to gemcitabine plus cisplatin chemotherapy significantly improves survival rates, making triple therapy the current standard for first-line treatment of BTC.
View Article and Find Full Text PDFPlant J
December 2024
Department of Environmental and Life Sciences, School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan.
Proteins in the importin α (IMPA) family play pivotal roles in intracellular nucleocytoplasmic transport. Arabidopsis thaliana possesses nine IMPA members, with diverse tissue-specific expression patterns. Among these nine IMPAs, IMPA1, IMPA2, and IMPA4 cluster together phylogenetically, suggesting potential functional redundancy.
View Article and Find Full Text PDFMol Ther Nucleic Acids
December 2024
Department of Chromosome Biomedical Engineering, Integrated Medical Sciences, Graduate School of Medical Sciences, Tottori University, 86 Nishi-cho, Yonago, Tottori 683-8503, Japan.
Radiol Case Rep
January 2025
Department of Radiology, Aichi Medical University, Nagakute, 480-1195, Japan.
An 84-year-old man presented with a large bronchial artery aneurysm with a tortuous afferent artery. A triple-coaxial system was used to perform super-selective catheterization, consisting of a small microcatheter, a large microcatheter, and a 4-Fr catheter. The large microcatheter was successfully placed inside the aneurysm, and coil embolization was performed using large detachable coils to reduce the procedure cost.
View Article and Find Full Text PDFOrg Lett
November 2024
Institute of Nanoscience and Engineering, Henan University, Kaifeng 475004, China.
Thiophene-based monohelicene (), triple helicenes (), and hexapole helicenes () were synthesized via oxidative photocyclization and cascade Suzuki/intramolecular cyclization as the crucial steps. The enantiomers of , , and exhibited circularly polarized luminescence (CPL), and the luminescence dissymmetry factors () gradually increased from -5.1 × 10 to -2.
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