Results 311 to 320 of about 148,467 (378)

London Dispersion Helps Refine Steric A-Values: The Halogens.

Journal of Organic Chemistry, 2021
Halogens are rarely considered as dispersion energy donors for organic reaction design. Here, we re-examine one of the textbook examples for assessing steric hindrance, the A-value, and demonstrate that even in this system, halogens cannot be treated ...
Ephrath Solel, Marcel Ruth, P. Schreiner
semanticscholar   +1 more source

Halogen bond-induced electrophilic aromatic halogenations

Organic & Biomolecular Chemistry, 2021
This review highlights the recent development of halogen bond-induced activations of N-halosuccinimides and N,N-dihalodimethylhydantoins in electrophilic aromatic halogenations.
Wanutcha Lorpaiboon, Pakorn Bovonsombat
openaire   +2 more sources

Halogen−Halogen Interactions in Halomethanes

The Journal of Organic Chemistry, 2002
We report the study of the electronic structure of CHFI(2), CHBrI(2), CHBr(2)I, CHClI(2), and CHCl(2)I using VUV photoelectron spectroscopy (UPS). The lone pair orbital interactions are discussed on the basis of experimental results and comparisons with other halomethanes.
Novak, I.   +4 more
openaire   +4 more sources

New aspects of monoamine oxidase B inhibitors: the key role of halogens to open the golden door.

Current Medicinal Chemistry, 2020
A large plethora of drugs and promising lead compounds contain halogens in their structures. The introduction of such moieties strongly modulates their physical-chemical features as well as pharmacokinetic and pharmacodynamic profile.
B. Mathew   +4 more
semanticscholar   +1 more source

Halogens in Protein-Ligand Binding Mechanism: A Structural Perspective.

Journal of Medicinal Chemistry, 2019
Halogen atoms have been at the center of many rational medicinal chemistry applications in drug design. While fluorine and chlorine atoms are often added to enhance physicochemical properties, bromine and iodine elements are generally inserted to improve
Nicolas K. Shinada   +2 more
semanticscholar   +1 more source

Halogen⋯Halogen Interactions: Nature, Directionality and Applications

Chemistry – An Asian Journal, 2023
AbstractHalogen⋯halogen interaction is a highly debated and important topic in crystal engineering and supramolecular chemistry. There are controversies about the nature and geometry of these interactions. F, Cl, Br and I are the four halogens involved in these interactions. Very often the lighter and the heavier halogens behave differently. The nature
Binoy K. Saha   +2 more
openaire   +2 more sources

Halogenation

Journal of the American Oil Chemists' Society, 1963
AbstractWithin the past twenty years, while much of the research and development appeal in the halogenation of fats and fatty derivatives has been associated with the evolution of new and useful derivatives such as arthritis cures and artificial rubber plasticizers, the principal utility of the halogenated fats still continues to be in the production ...
openaire   +2 more sources

Halogen transfer through halogen bonds in halogen-bound ammonia homodimers

Physical Chemistry Chemical Physics, 2016
Halogen bond complexes as intermediates in halogen transfer reactions betweenN-haloamines and ammonia.
Juan, Crugeiras, Ana, Ríos
openaire   +2 more sources

Halogen–halogen interactions and halogen bonding in thiacalixarene systems

CrystEngComm, 2014
5,11,17,23-tetraiodo-25,26,27,28-tetrapropoxythiacalix[4]arene exhibited I⋯I interactions which are ca. 2% shorter than the sum of their respective van der Waals atomic radii. 5,11,17,23-tetraiodo-25,26,27,28-tetrabutoxythiacalix[4]arene were identified to have S⋯I interactions that are ca.
Manabu Yamada   +2 more
openaire   +1 more source

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