aryl


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aryl

[′ar·əl]
(organic chemistry)
An organic group derived from an aromatic hydrocarbon by removal of one hydrogen.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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To obtain semicrystalline poly(aryl ether ketone)s with high [T.sub.g]S and moderate [T.sub.m]s is our goal since they would have good melt processabilities, excellent thermal and mechanical properties, and solvent-resistance characteristics.
Synthesis and properties of novel copolymers of poly(ether ketone diphenyl ketone ether ketone ketone) and poly(ether amide ether amide ether ketone ketone)
General Procedure for Suzuki Coupling Reaction of Aryl Halides Using XL-QPPd as Catalyst.
Quadrapure-supported palladium nanocatalysts for microwave-promoted Suzuki cross-coupling reaction under aerobic condition
Brown crystals, Yield (1.97 g, 94%), m.p 218-220[degrees]C, IR (KBr, [v.sub.max] in [cm.sup.-1]): 3405 (-NH), 3101 (=C-H), 1894 (C=N), 1633 (C=C), [sup.1]H NMR (DMSO-[d.sub.6], 400 MHz) [delta] ppm: 6.91-6.95 (d, 1H, -C=CH (vinylic proton), [J.sub.H-H] = 16.4 Hz), 7.16-7.18 (t, 1H, furan proton), 7.23-7.28 (q, 2H, phenylic protons), 7.44-7.45 (d, 1H, furan proton), 7.57-7.61 (q, 2H, phenylic protons), 7.67-7.68 (d, 1H, furan proton), 7.92-7.96 (d, 1H, -CH=C-(vinylic proton), [J.sub.H-H] = 16.4 Hz), 10.0 (s, 1H, -NH of benzimidazole), [sup.13]C NMR (DMSO-[d.sub.6], 100 MHz) [delta] ppm: 114.47, 114.50, 122.87, 127.96, 128.51, 129.15, 129.48, 137.39, 140.33, 149.87 (6 aryl carbons, 4 furyl carbons, 2 vinylic carbons and 1 imidazole quaternary carbon), MS (m/z): 211.10 ([M.sup.+*]), Anal.
Glycerol containing triacetylborate mediated syntheses of novel 2-heterostyryl benzimidazole derivatives: a green approach
Compounds 2 and 3 can also be formed by nucleophilic solvent trapping of an aryl cation deriving from homolysis, followed by in-cage electron transfer [18].
Photochemical behaviour of carbamates structurally related to herbicides in aqueous media: nucleophilic solvent trapping versus radical reactions
A direct polarisation [sup.13]C NMR analysis (DP) was completed on a subset of 38 fractions selected to be indicative of the range of aryl C contents obtained from the CP analyses.
Quantifying the allocation of soil organic carbon to biologically significant fractions
Citation: "The aryl hydrocarbon receptor directs hematopoietic progenitor cell expansion and differentiation"; B.
Novel approach to create red blood cells, platelets in vitro
Oxidative addition (reaction of aryl halide with a zerovalent palladium catalyst) is often described as a rate-limiting step, and numerous papers are dedicated to the experimental and theoretical investigations of its kinetics and mechanism [12-15].
Computational study of the copper-free Sonogashira cross-coupling reaction: shortcuts in the mechanism/Vasevaba Sonogashira ristkondensatsioonireaktsiooni modelleerimine: otseteed reaktsioonimehhanismis
So this product becomes a reactant, and you end up attaching a second and third aryl ring onto the nitrogen, which isn't what you set out to do.
Gambling man: Mark Stradiotto's combination of intuition and luck have yielded commercial success in the chancy field of catalysis
[sup.1]H-NMR (400 MHz, CD[Cl.sub.3]) [delta] 1.43 (s, 9H); 2.30(s, 3H, C[H.sub.3]); 2.33-2.42 (m, 2H, H 3); 3.55-3.58 (m, 1H, H-1); 3.89-3.93 (m, 3H, H-1, H-2), 4.48 (bs, NHBoc); 7.21-7.37 (m, 17 H, aryl); 7.72 (d, J = 8.0 Hz, 2H, aryl).
Amino acid derivatives as new zinc binding groups for the design of selective matrix metalloproteinase inhibitors
Perdew, "The aryl hydrocarbon receptor complex and the control of gene expression," Critical Reviews in Eukaryotic Gene Expression, vol.18, no.3, pp.207-250, 2008.
Epigenetically mediated pathogenic effects of phenanthrene on regulatory T cells
(ii) 2-Aryl/aryloxy-thiourea-5-aryl-1,3,4-thiadiazoles: Aryl or aryloxy thiourea (0.01M) was added to a solution of 5-aryl-2-mercapto-1,3,4-thiadiazole (0.01 M) in methanol and refluxed for 5 h.
Synthesis and biological activities of some derivatives of 1,3,4-thiadiazolo [2,3-b][1,3,5] triazino-6-thiones
R2 is H or an alkyl, alkenyl, cycloalkyl, or aryl group, optionally having 1-3 substituents independently selected from the group consisting of C1-C6alkyl, OH, O--C1-C6alkyl, halogen and CF3.
Color-stable Superabsorbent Polymer Composition: No. 7,504,551; Norbert Herfert, Michael Azad, Peter Carrico, Guy Woodrum, Michael Mitchell and Ma-Ikay Kikama Miatudila, assignors to BASF Aktiengesellschaft, Ludwigshafen, Germany. Filed 3/19/04. Issued 1/20/09

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