Results 41 to 50 of about 2,771,586 (165)

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source

Electrophilic fluorinatíon of ethers and deactivated benzene derivatives [PDF]

open access: yes, 2005
Chapter 1 - Chapter 1 provides a literature review of the relevant topics for this thesis in organofluorine chemistry: effect of fluorine as a substituent on the molecule, synthesis of C-F bond from C-H bond using electrophilic reagents with discussions ...
Trmčić, Jelena
core  

[18F]SuFEx Click Chemistry Enabled Ultrafast Late-stage Radiosynthesis [PDF]

open access: yes, 2020
The lack of simple, efficient [18F]fluorination processes and new target-specific organofluorine probes remains the major challenge of fluorine-18-based positron emission tomography (PET).
Huan, Xiong   +10 more
core   +2 more sources

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Fluorous Reverse Phase Silica Gel. A New Tool for Preparative Separations in Synthetic Organic and Organofluorine Chemistry

open access: yes, 2001
Fluorous reverse phase silica gel, or silica gel with a fluorocarbon bonded phase, can be readily prepared by standard techniques, but shows unusual separation features. This silica gel separates primarily by fluorine content.
Curran, Dennis P, Dennis P. Curran
core   +1 more source

The synthetic versatility of fluoroiodomethane: recent applications as monofluoromethylation platform

open access: yes, 2022
In recent years, fluoroiodomethane (CH2FI) has emerged as an easy-to-handle, non-ozone depleting agent and readily available platform for monofluoromethylation strategies.
Andresini M.   +11 more
core   +1 more source

Highly selective nickel-catalyzed gem-difluoropropargylation of unactivated alkylzinc reagents

open access: yesNature Communications, 2017
Difluoroalkylated compounds find wide application in medicinal chemistry. Here, the authors describe the mild nickel-catalyzed difluoroalkylation of aliphatic alkylzinc reagents with gem-difluoropropargylbromides and show its utility in a number of post ...
Lun An, Chang Xu, Xingang Zhang
doaj   +1 more source

Versatile Fluorine-Containing Building Blocks: β-CF3-1,3-enynes

open access: yesMolecules, 2022
The development of diversity-oriented synthesis based on fluorine-containing building blocks has been one of the hot research fields in fluorine chemistry.
Mingqing Liu   +3 more
doaj   +1 more source

Sustainability Assessment of Alternative Methods for Destruction of Per‐ and Polyfluoroalkyl Substances (PFAS) in Water

open access: yesRemediation Journal, Volume 36, Issue 2, Spring 2026.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants widely recognized for their resistance to degradation and potential adverse health effects. The treatment of PFAS‐contaminated aqueous media (e.g., drinking water, wastewater, and leachate) has been extensively studied in the published literature; however, the
Mohamed S. Mohamed, Krishna R. Reddy
wiley   +1 more source

Free radical syntheses of new organofluorine systems [PDF]

open access: yes, 1996
Use of the carbon hydrogen bond as a functional group in free radical addition reactions to fluoro - alkenes has been studied. Reactions involving additions of cyclic alcohols and cyclic as well as acyclic diols to hexafluoropropene, yielded selective ...
Dunn, Stephen Norman
core  

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