We describe a direct, catalytic approach to the 1,2-difluorination of alkenes. The method utilizes a nucleophilic fluoride source and an oxidant in conjunction with an aryl iodide catalyst and is applicable to alkenes with all types of substitution patterns. In general, the vicinal difluoride products are produced with high diastereoselectivities. The observed sense of stereoinduction implicates anchimeric assistance pathways in reactions of alkenes bearing neighboring Lewis basic functionality.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5097459 | PMC |
| http://dx.doi.org/10.1021/jacs.6b02391 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Characterization and interactions between piperine and ezetimibe in their Anti-hyperlipidemic efficacy using Biopharmaceutics and Pharmacokinetics.
BMC Pharmacol Toxicol
January 2025
Department of Pharmaceutics and Pharmaceutical Technology, Kampala International University, Western Campus, P.O. Box 71, Ishaka - Bushenyi, Uganda.
Background: Piperine, a secondary metabolite, affects the antihyperlipidemic effect of Ezetimibe (EZ). Hyperlipidemia is one of the independent risk factors for cardiovascular disorders such as atherosclerosis. Antihyperlipidemic drugs are essential for reducing cardiovascular events and patient mortality.
View Article and Find Full Text PDFComparative metabolomic analysis of Haematococcus pluvialis during hyperaccumulation of astaxanthin under the high salinity and nitrogen deficiency conditions.
World J Microbiol Biotechnol
January 2025
Key Laboratory of Smart Breeding (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Tianjin Agricultural University, Tianjin, 300392, P.R. China.
Revealing the differences of metabolite profiles of H. pluvialis during hyperaccumulation of astaxanthin under the high salinity and nitrogen deficiency conditions was the key issues of the present study. To investigate the optimum NaCl and NaNO concentration and the corresponding metabolic characteristic related to the astaxanthin accumulation in H.
View Article and Find Full Text PDFThe TRPV1-PKM2-SREBP1 axis maintains microglial lipid homeostasis in Alzheimer's disease.
Cell Death Dis
January 2025
Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
Microglia are progressively activated by inflammation and exhibit phagocytic dysfunction in the pathogenesis of neurodegenerative diseases. Lipid-droplet-accumulating microglia were identified in the aging mouse and human brain; however, little is known about the formation and role of lipid droplets in microglial neuroinflammation of Alzheimer's disease (AD). Here, we report a striking buildup of lipid droplets accumulation in microglia in the 3xTg mouse brain.
View Article and Find Full Text PDFSaturated F2-rings from Alkenes.
Angew Chem Int Ed Engl
January 2025
Enamine Ltd, Organic synthesis for drug discovery, UKRAINE.
A general method to convert simple exocyclic alkenes (no Ar-substituents) into saturated F2-rings has been developed. The reaction involves the IIII-reagent C6F5I(OAc)2 (F5-PIDA). The reaction efficiently works on the mg-, g-, and even multigram scale.
View Article and Find Full Text PDFDe novo root regeneration from leaf explant: a mechanistic review of key factors behind cell fate transition.
Planta
January 2025
College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
De novo root regeneration (DNRR) involves activation of special cells after wounding, along with the converter cells, reactive oxygen species, ethylene, and jasmonic acid, also playing key roles. An updated DNRR model is presented here with gene regulatory networks. Root formation after tissue injury is a type of plant regeneration known as de novo root regeneration (DNRR).
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!