By exposure of α-fluorinated benzophenones to McMurry reaction conditions, we have observed the remarkable formation of 9,10-diphenylanthracene derivatives. This unexpected transformation necessitates the cleavage of the exceptionally stable aromatic C-F bond under mild McMurry conditions. In this work, the condensation of several related fluorinated benzo- and acetophenones has been investigated, which allow us to propose a domino-like fusion mechanism for this unusual transformation. The scope and limitations of the fluorine-promoted benzophenone fusion are subsequently discussed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.201805290 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Volume and Distribution of Early Knee Effusion After TKA with a PEEK-Based Knee Prosthesis: Correlation with Changes in Serum Inflammation Marker Levels, Knee Functional Score, and Range of Motion.
J Bone Joint Surg Am
January 2025
Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, People's Republic of China.
Background: Early knee effusion is a common phenomenon after total knee arthroplasty (TKA), with potential clinical implications. Unlike traditional alloy knee prostheses, the polyetheretherketone (PEEK) knee system has radiographic transparency on magnetic resonance (MR) scans, which allows analysis of prosthetic knee effusion. We aimed to identify the distribution and volume of knee effusion after TKA with the PEEK prosthesis with use of MR imaging and to analyze whether dynamic changes in effusion were correlated with serum inflammatory marker changes and knee function recovery.
View Article and Find Full Text PDFGene transcription in the oyster Crassostrea gigas exposed to environmental concentrations of the UV filter Benzophenone-3.
Aquat Toxicol
January 2025
Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry-LABCAI, Federal University of Santa Catarina - UFSC, Florianópolis, SC 88037-000, Brazil. Electronic address:
Personal care products (PCPs), such as sunscreens, are usually found in various aquatic ecosystems at low concentrations (ng l to µg l). However, there is limited information regarding their effects on marine bivalves. Therefore, the aim of this study was to evaluate the sublethal effects of environmental concentrations (1 and 100 µg l) of benzophenone-3 (BP-3) in Crassostrea gigas oysters after 1 and 7 days of exposure.
View Article and Find Full Text PDFRandomised, multicentre, placebo-controlled trial of fenofibrate for treatment of diabetic macular oedema with economic evaluation (FORTE study): study protocol for a randomised control trial.
BMJ Open
December 2024
Westmead Institute for Medical Research, Westmead, New South Wales, Australia
Introduction: Diabetic macular oedema (DMO), a serious ocular complication of diabetic retinopathy (DR), is a leading cause of vision impairment worldwide. If left untreated or inadequately treated, DMO can lead to irreversible vision loss and blindness. Intravitreal injections using antivascular endothelial growth factor (anti-VEGF) and laser are the current standard of treatment for DMO.
View Article and Find Full Text PDFEvaluation of osseointegration of plasma treated polyaryletherketone maxillofacial implants.
Sci Rep
January 2025
Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, Australia.
Osseointegration is a crucial property of biomaterials used for bone defect repair. While titanium is the gold standard in craniofacial surgeries, various polymeric biomaterials are being explored as alternatives. However, polymeric materials can be bioinert, hindering integration with surrounding tissues.
View Article and Find Full Text PDFHot-Exciton Mechanism with Diphenyl Anthracene Core Unit: A Detailed Theoretical Study.
Chem Asian J
January 2025
Birla Institute of Technology & Science Pilani - Hyderabad Campus, Chemistry, INDIA.
Hot-exciton materials, among all kinds of organic light-emitting diode (OLED) emitters, have better exciton utilization efficiency and efficiency roll-off, making them possible for their practical applications. We studied the photophysical properties of a few hot-exciton molecules based on an anthracene core unit to efficiently harvest all triplet excitons to the lowest excited singlet state. The conversion of triplet exciton to singlet exciton utilizing hRISC can be enhanced due to the 1ππ*←3nπ* transition channel.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!