bluuebunny/crossref_metadata_2025_split huggingface dataset:
Factors That Affect the Nature of the Final Oxidation Products in “Peroxo‐Shunt” Reactions of Iron–Porphyrin Complexes
Authors: Franke Alicja , Wolak Maria , van Eldik Rudi 
Published: August 2009

AbstractThe present study focuses on the oxidation of the water‐soluble and water‐insoluble iron(III)–porphyrin complexes [FeIII(TMPS)] and [FeIII(TMP)] (TMPS=meso‐tetrakis(2,4,6‐trimethyl‐3‐sulfonatophenyl)porphyrinato, TMP=meso‐tetrakis(2,4,6‐trimethylphenyl)porphyrinato), respectively, by meta‐chloroperoxybenzoic acid (m‐CPBA) in aqueous methanol and aqueous acetonitrile solutions of varying acidity. With the application of a low‐temperature rapid‐scan UV/Vis spectroscopic technique, the complete spectral changes that accompany the formation and decomposition of the primary product of OO bond cleavage in the acylperoxoiron(III)–porphyrin intermediate [(P)FeIIIOOX] (P=porphyrin) were successfully recorded and characterized. The results clearly indicate that the OO bond in m‐CPBA is heterolytically cleaved by the studied iron(III)–porphyrin complexes independent of the acidity of the reaction medium. The existence of two different oxidation products under acidic and basic conditions is suggested not to be the result of a mechanistic changeover in the mode of OO bond cleavage on going from low to high pH values, but rather the effect of environmental changes on the actual product of the OO bond cleavage in [(P)FeIIIOOX]. The oxoiron(IV)–porphyrin cation radical formed as a primary oxidation product over the entire pH range can undergo a one‐ or two‐electron reduction depending on the selected reaction conditions. The present study provides valuable information for the interpretation and improved understanding of results obtained in product‐analysis experiments.
The Impact of Surfactants on FeIII–TAML‐Catalyzed Oxidations by Peroxides: Accelerations, Decelerations, and Loss of Activity
Authors: Banerjee Deboshri , Apollo Frank M. , Ryabov Alexander D. , Collins Terrence J. 
Published: August 2009

AbstractIron(III) complexes of tetraamidato macrocyclic ligands (TAMLs), [Fe{4‐XC6H3‐1,2‐(NCOCMe2NCO)2CR2}(OH2)]−, 1 (1 a: X=H, R=Me; 1 b: X=COOH, R=Me); 1 c: X=CONH(CH2)2COOH, R=Me; 1 d: CONH(CH2)2NMe2, R=Me; 1 e: X=CONH(CH2)2NMe3+, R=Me; 1 f: X=H, R=F), have been tested as catalysts for the oxidative decolorization of Orange II and Sudan III dyes by hydrogen peroxide and tert‐butyl hydroperoxide in the presence of micelles that are neutral (Triton X‐100), positively charged (cetyltrimethylammonium bromide, CTAB), and negatively charged (sodium dodecyl sulfate, SDS). The previously reported mechanism of catalysis involves the formation of an oxidized intermediate from 1 and ROOH (kI) followed by dye bleaching (kII). The micellar effects on kI and kII have been separately studied and analyzed by using the Berezin pseudophase model of micellar catalysis. The largest micellar acceleration in terms of kI occurs for the 1 atBuOOHCTAB system. At pH 9.0–10.5 the rate constant kI increased by approximately five times with increasing CTAB concentration and then gradually decreased. There was no acceleration at higher pH, presumably owing to the deprotonation of the axial water ligand of 1 a in this pH range. The kI value was only slightly affected by SDS (in the oxidation of Orange II), but was strongly decelerated by Triton X‐100. No oxidation of the water‐insoluble, hydrophobic dye Sudan III was observed in the presence of the SDS micelles. The kII value was accelerated by cationic CTAB micelles when the hydrophobic primary oxidant tert‐butyl hydroperoxide was used. It is hypothesized that tBuOOH may affect the CTAB micelles and increase the binding of the oxidized catalysts. The tBuOOHCTAB combination accelerated both of the catalysis steps kI and kII.
Synthesis, Structures, and Optical and Electrochemical Properties of Benzoporphycenes
Authors: Kuzuhara Daiki , Mack John , Yamada Hiroko , Okujima Tetsuo , Ono Noboru , Kobayashi Nagao 
Published: August 2009

AbstractThe first facile syntheses of free‐base di‐ and tetrabenzoporphycenes and their metal complexes are reported, based on retro‐Diels–Alder reactions of the corresponding bicyclo[2.2.2]octadiene‐fused porphycenes, prepared by McMurray coupling of α,α′‐diformyldipyrrole. The photophysical and electrochemical properties are analyzed based on UV/Vis absorption, magnetic circular dichroism (MCD), and fluorescence emission, lifetime and quantum yield measurements, cyclic and differential pulse voltammetry (CV and DPV) and time‐dependent DFT calculations based on B3LYP geometry optimizations. Benzoporphycenes are found to be prime candidates for future use in photodynamic therapy.
Membrane‐Length Amphiphiles Exhibiting Structural Simplicity and Ion Channel Activity
Authors: Wang Wei , Li Ruiqiong , Gokel George W. 
Published: August 2009

AbstractA number of synthetic ion channels have been reported in recent years that incorporate unusual or sophisticated design elements. The present work demonstrates that extremely simple compounds can function as ion channels (insert in bilayers, exhibit open–close behavior) if they meet minimum criteria. A simple membrane spanning structure may function as a channel if 1) it possesses polar headgroups (is bolaamphiphilic), 2) possesses a “central relay,” and 3) channel function (open–close behavior) must be detected after insertion of the amphiphile directly into the aqueous liposomal or cellular suspension. We show here compounds that are simple spans to which we have given the name “aplosspan” (from the Greek απλoσ + span) that meet these criteria. They are similar to, but simpler than, structures reported in the literatures that incorporate more complex design features.
A Small Molecule Affecting the Replication of Trinucleotide Repeat d(GAA)n
Authors: He Hanping , Hagihara Masaki , Nakatani Kazuhiko 
Published: August 2009

AbstractA newly designed ligand, methylcarbamoylnaphthyridine dimer (MCND), was synthesized and characterized. Ligand binding to d(GAA)10 was investigated by UV thermal denaturation, circular dichroism spectroscopy, surface plasmon resonance, and cold‐spray‐ionization time‐of‐flight mass spectrometry. The results indicated that MCND bound to the d(GAA)n repeat to form a stable hairpin structure with a major binding stoichiometry of 3:1. The most likely binding site was identified as the GG mismatch in the AGA/AGA triad. The polymerase stop assay showed that MCND binding to the d(GAA)n repeat effectively interfered with the extension of the primer at the first two GAA sites on the template with both prokaryotic Taq DNA polymerase and human DNA polymerase α.
Optically Active Oxo(phthalocyaninato)vanadium(IV) with Geometric Asymmetry: Synthesis and Correlation between the Circular Dichroism Sign and Conformation
Authors: Kobayashi Nagao , Narita Fumiko , Ishii Kazuyuki , Muranaka Atsuya 
Published: August 2009

AbstractOxovanadium(IV) phthalocyanines (VOPcs) with a single‐handed rotation have been prepared, and their right‐ and left‐handed enantiomers resolved on a chiral HPLC column. These enantiomers gave circular dichroism (CD) spectra of opposite signs; the correlation between the CD sign and conformation was obtained by time‐dependent density functional theory (TDDFT) calculations: an enantiomer showing a negative sign in the Q band was suggested to be the right‐handed conformer viewing from the axial oxygen side, whereas that giving a positive CD sign was assigned to the left‐handed conformer. Although silicon phthalocyanines (SiPcs) with two different alkoxy axial ligands have been resolved similarly, the absence of a meaningful CD difference probably reflects the flat character of the SiPc plane compared to the VOPc plane. Changes in the Q‐band CD, depending on the relative orientation of the peripheral substituents, have been worked out theoretically and the origin of the chiroptical properties is discussed.
Multicharged and/or Water‐Soluble Fluorescent Dendrimers: Properties and Uses
Authors: Caminade Anne‐Marie , Hameau Aurélien , Majoral Jean‐Pierre 
Published: August 2009

AbstractThe fluorescence of water‐soluble dendritic compounds can be due to the whole structure or to fluorophores used as core, as peripheral groups, or as branches. Highly sophisticated precisely defined structures with other functional groups usable for material or biological purposes have been synthesised, but many recent examples have shown that dendrimers can be used as versatile platforms for statistically linking various types of functional groups.
Toward Efficient Palladium‐Catalyzed Allylic CH Alkylation
Authors: Jensen Thomas , Fristrup Peter 
Published: August 2009

AbstractRecent breakthroughs have proved that direct palladium(II)‐catalyzed allylic CH alkylation can be achieved. This new procedure shows that the inherent requirement for a leaving group in the Tsuji–Trost palladium‐catalyzed allylic alkylation can be lifted. These initial reports hold great promise for the development of allylic CH alkylation into a widely applicable methodology, thus providing a means to enhance synthetic efficiency in these reactions.
ChemInform Abstract: Structure, Chemical Bonding, and 45Sc Solid State NMR of Sc2RuSi2.
Authors: Harmening Thomas , Al Alam Adel , Matar Samir F. , Eckert Hellmut , Poettgen Rainer 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Synthesis of Micro/Nanostructured p‐Type Bi0.4Sb1.6Te3 and Its Thermoelectrical Properties.
Authors: Li Yali , Jiang Jun , Xu Gaojie , Li Wei , Zhou Limei , Li Yong , Cui Ping 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Magnetic and Structural Properties of the Chromium‐Based Mn1‐xCdxCr2S4 Thiospinel.
Authors: Barahona Patricia , Galdamez Antonio , Manriquez Victor , Pena Octavio 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: A Facile Microwave Solvothermal Process to Synthesize ZnWO4 Nanoparticles.
Authors: Bi Jinhong , Wu Ling , Li Zhaohui , Ding Zhengxin , Wang Xuxu , Fu Xianzhi 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Molecule‐Like Eu3+‐Dimers Embedded in an Extended System Exhibit Unique Photoluminescence Properties.
Authors: Ananias Duarte , Kostova Mariya , Paz Filipe A. A. , Neto Albano N. C. , De Moura Renaldo T. Jr. , Malta Oscar L. , Carlos Luis D. , Rocha Joao 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Dielectric Constant Controlled Solvothermal Synthesis of a TiO2 Photocatalyst with Tunable Crystallinity: A Strategy for Solvent Selection.
Authors: Wu Jianjun , Lue Xujie , Zhang Linlin , Huang Fuqiang , Xu Fangfang 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Synthesis and Phase Width of Quaternary Selenides Pb4InxM6‐xSe13 (M: Bi, x = 2.1—2.8; Sb, x = 2).
Authors: Wang Ming‐Fang , Huang Wen‐Hen , Lee Chi‐Shen 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: New Nitridocobaltates(I): Crystal Structures and Physical Properties.
Authors: Bendyna J. K. , Hoehn P. , Ormeci A. , Schnelle W. , Kniep R. 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Pd(0)/C‐Catalyzed Efficient Wacker Oxidation of Functionalized Terminal Olefins
Authors: Kulkarni Mukund G. , et al. et al. 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Synthesis of α‐Aryl Nitriles Through B(C6F5)3‐Catalyzed Direct Cyanation of α‐Aryl Alcohols and Thiols.
Authors: Rajagopal Gurusamy , Kim Sung Soo 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Synthesis of Cyclopropenes via 1,2‐Elimination of Bromocyclopropanes Catalyzed by Crown Ether.
Authors: Sherrill William M. , Kim Ryan , Rubin Michael 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Chiral Bis(NHC)—Palladium(II) Complex Catalyzed and Diethylzinc‐Mediated Enantioselective Umpolung Allylation of Aldehydes.
Authors: Wang Wenfeng , Zhang Tao , Shi Min 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Selective Oxidation of Aromatic Primary Alcohols to Aldehydes Using Molybdenum Acetylide Oxo‐Peroxo Complex as Catalyst.
Authors: Biradar Ankush V. , Dongare Mohan K. , Umbarkar Shubhangi B. 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: o‐Amine‐Assisted Cannizzaro Reaction of Glyoxal with New 2,6‐Diaminoanilines.
Authors: Irie Yuhki , Koga Yuji , Matsumoto Taisuke , Matsubara Kouki 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Catalyst‐Free and Base‐Free Water‐Promoted SNAr Reaction of Heteroaryl Halides with Thiols.
Authors: Sreedhar B. , Reddy P. Surendra , Reddy M. Amarnath 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Iodine‐Promoted Efficient Homocoupling of Arylboronic Acids in PEG‐400 under Aerobic Conditions.
Authors: Mao Jincheng , Hua Qiongqiong , Xie Guanlei , Yao Zhigang , Shi Daqing 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Size Controlled Synthesis of Pd Nanoparticles in Water and Their Catalytic Application in C—C Coupling Reactions.
Authors: Sawoo Sudeshna , Srimani Dipankar , Dutta Piyali , Lahiri Rima , Sarkar Amitabha 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: An Efficient Copper(I) Complex Catalyzed Sonogashira‐Type Cross‐Coupling of Aryl Halides with Terminal Alkynes.
Authors: Thakur K. G. , Jaseer E. A. , Naidu Ajay B. , Sekar Govindasamy 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: One‐Pot Three‐Component Synthesis of 2‐(Alkylimino)‐7‐oxo‐1‐oxa‐6‐azaspiro [4.4]nona‐3,8‐diene‐3,4‐dicarboxylates.
Authors: Adib Mehdi , Moghimi Setareh , Sayahi Mohammed Hosein , Bijanzadeh Hamid Reza 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Facile Synthesis of Trisubstituted Thioindoles via a Novel Tricyclic Thiolactone Intermediate.
Authors: Yang Cangming , Kim Ronald M. , Parmee Emma R. , Tan Qiang 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Consecutive Three‐Component Synthesis of Ynones by Decarbonylative Sonogashira Coupling
Authors: Merkul Eugen , Oeser Thomas , Mueller Thomas J. J. 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Copper‐Catalyzed N‐Arylation/Hydroamin(d)ation Domino Synthesis of Indoles and Its Application to the Preparation of a Chek1/KDR Kinase Inhibitor Pharmacophore.
Authors: Ackermann Lutz , Barfuesser Sebastian , Potukuchi Harish K. 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Synthesis of 2,6‐Dioxo‐1,2,3,4,5,6‐hexahydroindoles by Acid‐Catalyzed Cyclization of Acetal‐Protected (2,4‐Dioxocyclohex‐1‐yl)acetamides and Their Transformation into 5,8,9,10‐Tetrahydro‐6H‐indolo[2,1‐a]isoquinolin‐9‐ones.
Authors: Juma Benard , Adeel Muhammad , Villinger Alexander , Reinke Helmut , Spannenberg Anke , Fischer Christine , Langer Peter 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Hypervalent Iodine Mediated Oxidation of 1,2‐Diaminobenzimidazole and Its Schiff Bases: Efficient Synthesis of 3‐Amino‐1,2,4‐benzotriazine and 2‐Aryl‐1,2,4‐triazolo[1,5‐a]benzimidazoles.
Authors: Kumar Ashok , Parshad Mahavir , Gupta Rakesh K. , Kumar Devinder 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Three‐Component Synthesis of 2‐Aryl‐4‐arylthio‐tetrahydro‐2H‐pyrans via the Prins‐Cyclization.
Authors: Yadav J. S. , Reddy B. V. Subba , Reddy Y. Jayasudhan , Reddy N. Sivasankar 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: Facile Polyethylene Glycol (PEG‐400) Promoted Synthesis of Some New Heteryl (E)‐Styryl Sulfones (III)
Authors: Guravaiah Nalajam , Rao Vedula Rajeswar 
Published: August 2009

AbstractChemInform 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.
ChemInform Abstract: First Vilsmeier—Haack Synthesis of Flavones Using bis‐(Trichloromethyl) Carbonate/Dimethylformamide.
Authors: Su W. K. , Zhu X. Y. , Li Z. H. 
Published: August 2009

AbstractChemInform 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.