Results 11 to 20 of about 25,792 (269)
Halogen–Halogen Nonbonded Interactions [PDF]
ACS Omega, 2021 Halogen-halogen nonbonded interactions were studied for methyl halides and phenyl halides using both B3LYP and MP2 along with 6-311+G* and aug-cc-pVTZ. With the methyl halides, the linear approach was found to lead to little stabilization, whereas the "90°" approach gave 1-2 kcal/mol. This modest stabilization was due to long-range electron correlation
openaire +3 more sources
Frontiers in Bioengineering and Biotechnology, 2022 Biocatalytic C-H halogenation is becoming increasingly attractive due to excellent catalyst-controlled selectivity and environmentally benign reaction conditions. Significant efforts have been made on enzymatic halogenation of industrial arenes in a cost-
Eunice Hui Yen Li +6 more
doaj +1 more source
Halogenation generates effective modulators of amyloid-Beta aggregation and neurotoxicity. [PDF]
PLoS ONE, 2013 Halogenation of organic compounds plays diverse roles in biochemistry, including selective chemical modification of proteins and improved oral absorption/blood-brain barrier permeability of drug candidates.
H Edward Wong +2 more
doaj +1 more source
Halogenation in Fungi: What Do We Know and What Remains to Be Discovered?
Molecules, 2022 In nature, living organisms produce a wide variety of specialized metabolites to perform many biological functions. Among these specialized metabolites, some carry halogen atoms on their structure, which can modify their chemical characteristics ...
Bastien Cochereau +4 more
doaj +1 more source
Type II halogen···halogen contacts are halogen bonds [PDF]
IUCrJ, 2013 Cl/Br/I alternative substitutions in a series of dihalophenols indicate that type I and type II halogen···halogen contacts have different chemical nature. Only the latter ones qualify as true halogen bonds, according to the recent IUPAC definition.
METRANGOLO, PIERANGELO +1 more
openaire +4 more sources
Mechanochemical halogenation of unsymmetrically substituted azobenzenes
Beilstein Journal of Organic Chemistry, 2022 The direct and selective mechanochemical halogenation of C–H bonds in unsymmetrically substituted azobenzenes using N-halosuccinimides as the halogen source under neat grinding or liquid-assisted grinding conditions in a ball mill has been described ...
Dajana Barišić +4 more
doaj +1 more source
Nature Communications, 2021 Organohalides are widely used as synthetic precursors and target products, but for various halogenation reactions there is a need for effective catalysts to activate commercially available haleniums.
Weijin Wang +6 more
doaj +1 more source
Visible-Light-Induced Catalytic Selective Halogenation with Photocatalyst
Molecules, 2021 Halide moieties are essential structures of compounds in organic chemistry due to their popularity and wide applications in many fields such as natural compounds, agrochemicals, and pharmaceuticals.
Truong Giang Luu +2 more
doaj +1 more source
Molecules, 2022 Prodigiosins (prodiginines) are a class of bacterial secondary metabolites with remarkable biological activities and color. In this study, optimized production, purification, and characterization of prodigiosin (PG) from easily accessible Serratia ...
Jelena Lazic +8 more
doaj +1 more source
Probing halogen–halogen interactions in solution [PDF]
Physical Chemistry Chemical Physics, 2017 Weak but measurable: a supramolecular balance detects interactions between CBr3groups in solution and estimates the corresponding free energy (0.2 kJ mol−1).
Ayzac, V. +9 more
openaire +3 more sources