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Aromatic Compounds (aromatic + compound)
Kinds of Aromatic Compounds Selected AbstractsAn Electrophilicity Based Analysis of Toxicity of Aromatic Compounds Towards Tetrahymena PyriformisMOLECULAR INFORMATICS, Issue 2 2006R. Roy Abstract Electrophilicity index is one of the important quantum chemical descriptors in describing toxicity or biological activities of the diverse classes of chemicals to bio-systems in the context of development of Quantitative Structure Activity Relationship (QSAR). In this study a large number of selected 174 aromatic compounds containing phenols, nitrobenzenes and benzonitriles are chosen as the training set to verify their toxic potency to Tetrahymena pyriformis in the light of electrophilicity. A systematic analysis has been made to find out the electron donation/acceptance nature of these model compounds by comparing their electronegativity values with those of the NA bases/DNA base pairs. The training sets are classified into two groups, viz., the electron donor group comprising 97 phenol derivatives and the electron acceptor group consisting of 77 nitrobenzenes and benzonitriles grouped together. Regression analysis in terms of correlation coefficient (), variance adjusted to degrees of freedom () and variance of leave-one-out cross-validation () has been made for both the electron donor and acceptor aromatic groups to predict the toxicity values of these model compounds to Tetrahymena pyriformis. It is heartening to note that the global and local electrophilicity indices along with the total Hartree-Fock energy can explain more than 80% of cross-validation variance of data of those aromatic molecules. [source] Surface-Treated Activated Carbon for Removal of Aromatic Compounds from WaterCHEMICAL ENGINEERING & TECHNOLOGY (CET), Issue 5 2009B. Li Abstract Modifications of commercial activated carbons by chemical treatment with HNO3 or HCl and HF and the adsorption behavior of simple aromatic compounds (aniline, pyridine, phenol, and benzene) on activated carbon and modified activated carbon were investigated. The results show that the textural properties change a little after these modifications, but the surface acidity (mainly oxygen-containing groups) of activated carbon modified with HNO3 increases greatly. The effect of ash of activated carbon on adsorption of the organic compounds mentioned above is insignificant. However, addition of surface acidity (mainly surface oxygen-containing groups) decreases the adsorption capacity of compounds significantly. The adsorption uptake of compounds on activated carbon with oxidation of HNO3 is low possibly due to dispersive interaction, water cluster blocking, or competition between water and compounds adsorbed on activated carbon's surface because of hydrophilic increase of the activated carbon surface. The solubility of aromatic compounds in water has an important effect on the adsorption capacity of activated carbon. qm and KL (Langmuir adsorption parameters) for the aromatic compounds vary similarly. [source] ChemInform Abstract: Isoquinolinium Bromochromate: An Efficient and Stable Reagent for Bromination of Hydroxylated Aromatic Compounds and Oxidation of AlcoholsCHEMINFORM, Issue 33 2009Sandeep V. Khansole Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Metal-Free Oxidative Cross-Coupling of Unfunctionalized Aromatic Compounds.CHEMINFORM, Issue 25 2009Yasuyuki Kita Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: PMA,Silica Gel Catalyzed Propargylation of Aromatic Compounds with Arylpropargyl Alcohols under Solvent-Free Conditions.CHEMINFORM, Issue 43 2008Pabbaraja Srihari Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Electrochemically Promoted Friedel,Crafts Acylation of Aromatic Compounds.CHEMINFORM, Issue 31 2008G. Karthik Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Mononitration of Aromatic Compounds via Their Nitric Acid Salts.CHEMINFORM, Issue 12 2008Pingsheng Zhang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: {[K.18-Crown-6]Br3}n: A Unique Tribromide-Type and Columnar Nanotube-Like Structure for the Oxidative Coupling of Thiols and Bromination of Some Aromatic Compounds.CHEMINFORM, Issue 9 2008Mohammad Ali Zolfigol Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Rapid and Mild Sulfonylation of Aromatic Compounds with Sulfonic Acids via Mixed Anhydrides Using Tf2O.CHEMINFORM, Issue 1 2008Abdolhamid Alizadeh Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Tf2O as a Rapid and Efficient Promoter for the Dehydrative Friedel,Crafts Acylation of Aromatic Compounds with Carboxylic Acids.CHEMINFORM, Issue 39 2007Mohammd Mehdi Khodaei Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] FeCl3 -Catalyzed Propargylation of Aromatic Compounds with Propargylic Acetates.CHEMINFORM, Issue 14 2007Zhuang-Ping Zhan Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Direct Iodination of Aromatic Compounds with Polyvinylpyrrolidone Supported Hydrogen Peroxide (PVP-H2O2) and Potassium Iodide or Molecular Iodine.CHEMINFORM, Issue 50 2006Ali Reza Pourali Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Highly Selective Catalytic Friedel,Crafts Acylation and Sulfonylation of Activated Aromatic Compounds Using Indium Metal.CHEMINFORM, Issue 49 2006Doo Ok Jang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Oxidation of Aromatic Compounds.CHEMINFORM, Issue 39 2006Part 14. Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Electrochemical Fluorination of Aromatic Compounds in Anhydrous HF.CHEMINFORM, Issue 29 2006B. A. Shainyan Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Charge Migration in Dicationic Electrophiles and Its Application to the Synthesis of Aza-polycyclic Aromatic Compounds.CHEMINFORM, Issue 29 2006Ang Li Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Oxidation of Aromatic Compounds.CHEMINFORM, Issue 17 2006Part 13. Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Chromium-Mediated Synthesis of Polycyclic Aromatic Compounds from Halobiaryls.CHEMINFORM, Issue 13 2006Ken-ichiro Kanno Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Water-Soluble Calix[4]resorcarenes as Enantioselective NMR Shift Reagents for Aromatic Compounds.CHEMINFORM, Issue 52 2005Catherine F. Dignam No abstract is available for this article. [source] Mild and Regioselective Bromination of Aromatic Compounds with N,N,N,,N,-Tetrabromobenzene-1,3-disulfonylamide and Poly(N-bromobenzene-1,3-disulfonylamide).CHEMINFORM, Issue 42 2005Ramin Ghorbani-Vaghei Abstract For Abstract see ChemInform Abstract in Full Text. [source] An Intriguing Effect of Lithium Perchlorate Dispersed on Silica Gel in the Bromination of Aromatic Compounds by N-Bromosuccinimide.CHEMINFORM, Issue 38 2005Mojtaba Bagheri Abstract For Abstract see ChemInform Abstract in Full Text. [source] Nitration of Aromatic Compounds by Zn(NO3)2×2N2O4 and Its Charcoal-Supported System.CHEMINFORM, Issue 29 2005Nasser Iranpoor Abstract For Abstract see ChemInform Abstract in Full Text. [source] Aluminum Dodecatungstophosphate (AlPW12O40) as a Non-Hygroscopic Lewis Acid Catalyst for the Efficient Friedel,Crafts Acylation of Aromatic Compounds under Solvent-Less Conditions.CHEMINFORM, Issue 17 2005Habib Firouzabadi No abstract is available for this article. [source] Side Chain Bromination of Mono and Dimethyl Heteroaromatic and Aromatic Compounds by Solid Phase N-Bromosuccinimide Reaction Without Radical Initiator under Microwave.CHEMINFORM, Issue 49 2004Shyamaprosad Goswami Abstract For Abstract see ChemInform Abstract in Full Text. [source] A Simple, Efficient and Regioselective Oxychlorination of Aromatic Compounds Using Ammonium Chloride and OxoneŽ.CHEMINFORM, Issue 40 2004N. Narender Abstract For Abstract see ChemInform Abstract in Full Text. [source] Mild and Regioselective Oxidative Bromination of Aromatic Compounds Using Ammonium Bromide and OxoneŽ.CHEMINFORM, Issue 15 2004N. Narender Abstract For Abstract see ChemInform Abstract in Full Text. [source] Polycyclic Aromatic Compounds via Radical Cyclizations of Benzannulated Enyne-Allenes Derived from Ireland,Claisen Rearrangement.CHEMINFORM, Issue 11 2004Yonghong Yang Abstract For Abstract see ChemInform Abstract in Full Text. [source] Halogenation of Aromatic Compounds by N-Chloro-, N-Bromo-, and N-Iodosuccinimide.CHEMINFORM, Issue 9 2004Kiyoshi Tanemura Abstract For Abstract see ChemInform Abstract in Full Text. [source] Iodination of Aromatic Compounds with Iodine and n-Butyl-triphenylphosphonium Peroxodisulfate.CHEMINFORM, Issue 34 2003H. Tajik Abstract For Abstract see ChemInform Abstract in Full Text. [source] Oxidative Halogenation of Aromatic Compounds with Metal Halides and Sodium Bismuthate.CHEMINFORM, Issue 20 2003Hussni A. Muathen Abstract For Abstract see ChemInform Abstract in Full Text. [source] |