Results 201 to 210 of about 33,950 (227)
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Deoxygenative Arylation of Carboxylic Acids by Aryl Migration
Chemistry – A European Journal, 2019AbstractAn unprecedented deoxygenative arylation of aromatic carboxylic acids has been achieved, allowing the construction of an enhanced library of unsymmetrical diaryl ketones. The synergistic photoredox catalysis and phosphoranyl radical chemistry allows for precise cleavage of a stronger C−O bond and formation of a weaker C−C bond by 1,5‐aryl ...
Rehanguli Ruzi +8 more
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Environmentally Friendly Suzuki Aryl-Aryl Cross-Coupling Reaction
Current Organic Chemistry, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
L. Bai, J.‐X. Wang
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Iron-catalyzed arylation of α-aryl-α-diazoesters
Organic & Biomolecular Chemistry, 2016An iron-catalyzed arylation of α-aryl-α-diazoesters with electron-rich benzene rings was developed, which provides an efficient method for the preparation of 1,1-diarylacetates with high yields and excellent chemo- and regio-selectivities.
Ji-Min, Yang +3 more
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Palladium-Catalyzed N-Arylation of Sulfoximines with Aryl Bromides and Aryl Iodides
The Journal of Organic Chemistry, 1999Various N-arylated sulfoximines have been synthesized in high yield by a direct approach which is based on a palladium-catalyzed cross-coupling strategy. Aryl bromides of variable substitution pattern were found to be the most effective coupling partners, whereas aryl iodides showed a nonpredictable behavior requiring lithium or silver salts as ...
, Bolm, , Hildebrand
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International Journal of Biochemistry, 1982
1. The serotonin (5-HT) sensitive brain aryl acylamidase (AAA) has received considerable attention due to its potential involvement in 5-HT action mechanism in CNS. 2. Multiple forms, AAA-1 and 2, have been separated by ammonium sulfate precipitation of brain extract and subsequent gel filtration. 3.
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1. The serotonin (5-HT) sensitive brain aryl acylamidase (AAA) has received considerable attention due to its potential involvement in 5-HT action mechanism in CNS. 2. Multiple forms, AAA-1 and 2, have been separated by ammonium sulfate precipitation of brain extract and subsequent gel filtration. 3.
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Efficient Copper-Catalyzed N-Arylation of Sulfoximines with Aryl Iodides and Aryl Bromides
The Journal of Organic Chemistry, 2005Two simple and inexpensive systems for copper-catalyzed N-arylations of sulfoximines with aryl bromides and aryl iodides have been developed. Using 10 mol % of a copper(I) salt in combination with 20 mol % of a 1,2-diamine and Cs2CO3 provides N-arylated sulfoximines in high yields. Various functional groups and heteroatoms are tolerated.
Jörg, Sedelmeier, Carsten, Bolm
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Organic Letters, 2007
Direct arylation of aryl(azaaryl)methanes with aryl halides takes place at the benzylic position in the presence of a hydroxide base under palladium catalysis to yield triarylmethanes.
Niwa, Takashi +2 more
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Direct arylation of aryl(azaaryl)methanes with aryl halides takes place at the benzylic position in the presence of a hydroxide base under palladium catalysis to yield triarylmethanes.
Niwa, Takashi +2 more
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Generation of Aryl Radicals from Aryl Halides: Rongalite-Promoted Transition-Metal-Free Arylation
The Journal of Organic Chemistry, 2019A new and practical method for the generation of aryl radicals from aryl halides is reported. Rongalite as a novel precursor of super electron donors was used to initiate a series of electron-catalyzed reactions under mild conditions. These transition-metal-free radical chain reactions enable the efficient formation of C-C, C-S, and C-P bonds through ...
Fazhi Yu +4 more
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Asian Journal of Organic Chemistry
AbstractA simple photoinduced radical borylation, phosphonation, sulfurization and selenization of various aryl iodides to construct the structurally diverse C‐B/P/S/Se bonds has been developed. Using HCO2Na as the reductant, a wide range of aryl iodides including the substituted iodobenzenes, heteroaromatic iodides, aromatic iodides derived from the ...
Juan Tang +6 more
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AbstractA simple photoinduced radical borylation, phosphonation, sulfurization and selenization of various aryl iodides to construct the structurally diverse C‐B/P/S/Se bonds has been developed. Using HCO2Na as the reductant, a wide range of aryl iodides including the substituted iodobenzenes, heteroaromatic iodides, aromatic iodides derived from the ...
Juan Tang +6 more
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Organic Letters
We have developed an efficient gold-catalyzed C-S cross-coupling of various silver-based thionucleophiles with aryl iodides. Our method offers a one-stop-shop solution for synthesizing diverse sulfur-containing aromatics, including aryl thiocyanic acids, aryl diethyldithiocarbamates, aryl sulfones, and aryl thiobenzoates. Our protocol gives moderate to
Hongyan Liu, Guifang Chen, Bo Xu
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We have developed an efficient gold-catalyzed C-S cross-coupling of various silver-based thionucleophiles with aryl iodides. Our method offers a one-stop-shop solution for synthesizing diverse sulfur-containing aromatics, including aryl thiocyanic acids, aryl diethyldithiocarbamates, aryl sulfones, and aryl thiobenzoates. Our protocol gives moderate to
Hongyan Liu, Guifang Chen, Bo Xu
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