Results 291 to 300 of about 1,194,003 (337)
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Organic Letters, 2019
The use of a halogen bond donor to catalyze Friedel-Crafts reactions of indoles with a range of aldehydes and ketones to directly produce bis(indolyl)methanes, including the natural products arsindoline A, arundine, trisindoline, and vibrindole A, is ...
Xuelei Liu, Shuang Ma, P. Toy
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The use of a halogen bond donor to catalyze Friedel-Crafts reactions of indoles with a range of aldehydes and ketones to directly produce bis(indolyl)methanes, including the natural products arsindoline A, arundine, trisindoline, and vibrindole A, is ...
Xuelei Liu, Shuang Ma, P. Toy
semanticscholar +1 more source
Angewandte Chemie, 2019
Homo- and cross-[4+2] cycloadditions of 2-alkenylindoles, catalyzed by cationic halogen-bond donors, were developed. Under mild reaction conditions, 3-indolyl-substituted tetrahydrocarbazole derivatives were obtained in good to excellent yields ...
Satoru Kuwano +4 more
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Homo- and cross-[4+2] cycloadditions of 2-alkenylindoles, catalyzed by cationic halogen-bond donors, were developed. Under mild reaction conditions, 3-indolyl-substituted tetrahydrocarbazole derivatives were obtained in good to excellent yields ...
Satoru Kuwano +4 more
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Journal of Organic Chemistry, 2019
In the past decade halogen bond (XB) catalysis has gained considerable attention. Halo-triazoles are known XB donors, yet few examples detail their use as catalysts.
Mikk Kaasik +5 more
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In the past decade halogen bond (XB) catalysis has gained considerable attention. Halo-triazoles are known XB donors, yet few examples detail their use as catalysts.
Mikk Kaasik +5 more
semanticscholar +1 more source
Synthesis and Evaluation of Azolium-Based Halogen Bond Donors.
Chemistry, 2019A method for the synthesis of iodinated imidazolium and triazolium N-heterocyclic halogen bond donor catalysts has been developed. This approach was applied to the synthesis of a variety of 1,2,4-triazolium salts to prepare a series of novel chiral ...
Richard A Squitieri +3 more
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2014
Because of its expected applicability for modulation of molecular recognition phenomena in chemistry and biology, halogen bonding has lately attracted rapidly increasing interest. As most of these processes proceed in solution, the understanding of the influence of solvents on the interaction is of utmost importance.
Anna-Carin C. Carlsson +2 more
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Because of its expected applicability for modulation of molecular recognition phenomena in chemistry and biology, halogen bonding has lately attracted rapidly increasing interest. As most of these processes proceed in solution, the understanding of the influence of solvents on the interaction is of utmost importance.
Anna-Carin C. Carlsson +2 more
openaire +2 more sources
Halogen transfer through halogen bonds in halogen-bound ammonia homodimers
Physical Chemistry Chemical Physics, 2016Halogen bond complexes as intermediates in halogen transfer reactions betweenN-haloamines and ammonia.
Juan, Crugeiras, Ana, Ríos
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A new type of halogen bond involving multivalent astatine: an ab initio study.
Physical Chemistry, Chemical Physics - PCCP, 2019Theoretical studies on the dimers formed by CO with the halides of multivalent astatine as a Lewis-acid center are carried out to examine the typical characteristics of supervalent halogen bonds.
Fengxiang Zhou +6 more
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2014
Halogens are atypical elements in biology, but are common as substituents in ligands, including thyroid hormones and inhibitors, which bind specifically to proteins and nucleic acids. The short-range, stabilizing interactions of halogens - now seen as relatively common in biology - conform generally to halogen bonds characterized in small molecule ...
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Halogens are atypical elements in biology, but are common as substituents in ligands, including thyroid hormones and inhibitors, which bind specifically to proteins and nucleic acids. The short-range, stabilizing interactions of halogens - now seen as relatively common in biology - conform generally to halogen bonds characterized in small molecule ...
openaire +2 more sources
Journal of Organic Chemistry, 2019
A halogen bond-assisted electron-catalyzed iodination of heteroarenes has been developed for the first time under atom economic condition at room temperature. The iodination is successful with just 0.55 equiv of iodine and 0.50 equiv of peroxide.
Imran Kazi, S. Guha, G. Sekar
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A halogen bond-assisted electron-catalyzed iodination of heteroarenes has been developed for the first time under atom economic condition at room temperature. The iodination is successful with just 0.55 equiv of iodine and 0.50 equiv of peroxide.
Imran Kazi, S. Guha, G. Sekar
semanticscholar +1 more source
Journal of Physical Chemistry A, 2019
Halogen bonding (XB) in complexes of diiodine with heteroaromatic N-oxides was examined via a combination of UV-Vis spectral and X-ray structural measurements, as well as computational analysis.
W. Borley +4 more
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Halogen bonding (XB) in complexes of diiodine with heteroaromatic N-oxides was examined via a combination of UV-Vis spectral and X-ray structural measurements, as well as computational analysis.
W. Borley +4 more
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