نتایج جستجو برای: halogen compounds

تعداد نتایج: 230653  

Journal: :Molecules 2017
Yi Yang Joseph J Pignatello

Halide ions are ubiquitous in natural waters and wastewaters. Halogens play an important and complex role in environmental photochemical processes and in reactions taking place during photochemical water treatment. While inert to solar wavelengths, halides can be converted into radical and non-radical reactive halogen species (RHS) by sensitized photolysis and by reactions with secondary reacti...

Journal: :Molecules 2015
Shohei Eda Toshiyuki Hamura

Successive [2+4] cycloadditions of arynes and isobenzofurans by site-selective halogen-lithium exchange of 1,2-dihaloarenes were developed, allowing the rapid construction of polycyclic compounds which serve as a useful synthetic intermediates for the preparation of various polyacene derivatives.

Journal: :Molecules 2014
Vasily P Morgalyuk

The underinvestigated derivatives of unstable phosphorylated formaldehyde acetals and some of the structurally related compounds, such as thioacetals, aminonitriles, aminomethylphosphinoyl compounds, are considered. Separately considered are halogen aminals of phosphorylated formaldehyde, acetals of phosphorylated formaldehyde of H-phosphinate-type and a phosphorylated gem-diol of formaldehyde....

Journal: :Chemical communications 2015
Alexander Linke Stefan H Jungbauer Stefan M Huber Siegfried R Waldvogel

Affinity materials based on halogen bonds turned out to be a powerful tool for the molecular recognition of acetone or related carbonyl compounds in the presence of ubiquitous protic molecules. The superior selectivity and sensitivity were found by the gravimetric detection of volatile organic compounds by quartz crystal microbalances.

Journal: :Dalton transactions 2010
Nina A van Jaarsveld David C Liles Simon Lotz

The activation of a section, or of all the carbons of thiophene by bromine in lithium-halogen exchange reactions, was implemented in a step-wise manner to facilitate the preparation of novel multiple Fischer carbene-bearing thiophene compounds.

Journal: :Physical Chemistry Chemical Physics 2021

Novel redox-switchable halogen bond donors were synthesized. Thermodynamic affinity constants towards anions have been determined by electrochemical and spectroscopic techniques. The compounds successfully employed as effective organocatalysts.

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