bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Zeolites as Catalysts and Supports for the Water‐Gas Shift Reaction
Authors: LANIECKI M. , ZMIERCZAK W. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Metal‐Support Interaction and Adsorption‐Induced Structural Changes of Supported Rhodium
Authors: SOLYMOSI F. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Advances in the Chemistry of Inorganic Dithio‐ and Trithiocarbonates 1976‐1991
Authors: GATTOW G. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Catalysis by Heteropoly Compounds in the Pseudoliquid Phase
Authors: OKUHARA T. , MISONO M. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Organometallic Chemistry of Monometallic Species
Authors: WHITELEY M. W. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Structure of Metal Complexes with Organic Polymers or Inorganic Supports
Authors: CIARDELLI F. , ALTOMARE A. , CONTI G. , ARRIBAS G. , MENDEZ B. , ISMAYEL A. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Transition Metal Complexes in the Chemistry of Vinylcyclopropanes
Authors: KHUSNUTDINOV R. I. , DZHEMILEV U. M. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Functionalization of Porphyrin Nucleus Through N‐Substitution with C2H2
Authors: SETSUNE J. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Asymmetric Synthesis of the Novel Antidepressant Rolipram
Authors: MULZER J. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: On the 4f‐3d Exchange Interaction in Intermetallic Compounds
Authors: LIU J. P. , DE BOER F. R. , DE CHATEL P. F. , COEHOORN R. , BUSCHOW K. H. J. 
Published: August 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Formation and Stability of Gaseous WS2Cl2, WS2Br2 and WS2I2 — A Combined Experimental and Theoretical Study.
Authors: Milke Edgar , Koeppe Ralf , Binnewies Michael 
Published: August 2010

AbstractThe reactions of solid WS2 with gaseous Cl2, Br2 and I2 are monitored by mass spectrometry.
ChemInform Abstract: Unusual ipso Substitution of Diaryliodonium Bromides Initiated by a Single‐Electron‐Transfer Oxidizing Process.
Authors: Dohi Toshifumi , Ito Motoki , Yamaoka Nobutaka , Morimoto Koji , Fujioka Hiromichi , Kita Yasuyuki 
Published: August 2010

AbstractTreatment of diaryliodonium bromides (I) with electron‐rich aromatic nucleophiles (II) affords a variety of heteroaryl‐containing biaryls (III) in good yields.
ChemInform Abstract: Highly Asymmetric Michael Additions of α,α‐Disubstituted Aldehydes to β‐Nitroalkenes Promoted by Chiral Pyrrolidine—Thiourea Bifunctional Catalysts.
Authors: Bai Jian‐Fei , Xu Xiao‐Ying , Huang Qing‐Chun , Peng Lin , Wang Li‐Xin 
Published: August 2010

AbstractFour bifunctional amine—thiourea derivatives bearing 2 catalytic sites are tested and ATC is found to be most efficient one for the asymmetric Michael addition of secondary alkyl aldehydes to (het)aryl nitroalkenes.
ChemInform Abstract: Palladium‐Catalyzed Aerobic Oxidative Carbonylation of Arylboronate Esters under Mild Conditions.
Authors: Liu Qiang , Li Gang , He Jun , Liu Jing , Li Peng , Lei Aiwen 
Published: August 2010

AbstractThe reaction is performed under a balloon pressure of CO/air giving the corresponding carbonylated products (IV) and (VI) in good yields using air as the sole oxidant.
ChemInform Abstract: Efficient Synthesis of Biaryls Through the Kumada Reaction Catalyzed by Carbene Adducts of Cyclopalladated Ferrocenylimine.
Authors: Ren Gerui , Cui Xiuling , Wu Yangjie 
Published: August 2010

AbstractThe novel ferrocene‐Pd‐carbene catalyst allows the preparation of a variety of biaryls and polyarylalkenes in high yields from aryl bromides and chlorides.
ChemInform Abstract: 5‐(Dimethylamino)‐N‐(4‐ethynylphenyl)‐1‐naphthalenesulfonamide (I) as a Novel Bifunctional Antitumor Agent and Two‐Photon Induced Bio‐Imaging Probe
Authors: Tao X.‐M. , et al. et al. 
Published: August 2010

Abstractsynthesis and characterization of title compound (I)
ChemInform Abstract: Synthesis of 1‐Substituted 2‐(Trifluoromethyl)indoles via a Palladium‐Catalyzed Double Amination Reaction.
Authors: Dong Shu‐Xiang , Zhang Xing‐Guo , Liu Qiong , Tang Ri‐Yuan , Zhong Ping , Li Jin‐Heng 
Published: August 2010

AbstractThe new, practical process starts from o‐halophenyl‐substituted substrates (I) and (IV) and allows the formation of 2 C—N bonds in one pot.
ChemInform Abstract: Direct Asymmetric Aldol Reaction of 5H‐Oxazol‐4‐ones with Aldehydes Catalyzed by Chiral Guanidines.
Authors: Misaki Tomonori , Takimoto Gouta , Sugimura Takashi 
Published: August 2010

AbstractNew chiral guanidines such as (I) catalyze the direct asymmetric aldol reaction of 5H‐oxazol‐4‐ones (donors) such as (II) with aldehydes (acceptors).
ChemInform Abstract: Broadening the Synthetic Scope of the Iron(III)‐Catalyzed Aza‐Prins Cyclization.
Authors: Carballo Ruben M. , Valdomir Guillermo , Purino Martin , Martin Victor S. , Padron Juan I. 
Published: August 2010

AbstractRing formation proceeds equally well for the N‐nosyl and N‐mesyl substrates.
ChemInform Abstract: Synthesis and Spectral Analysis of Novel 3‐(4,6‐Diarylpyrimidin‐2‐yl)‐2‐phenylthiazolidin‐4‐ones (IV)
Authors: Gopalakrishnan M. , Thanusu J. , Kanagarajan V. 
Published: August 2010

Abstract11 examples
ChemInform Abstract: One‐Pot Synthesis of Antifungal Active 9‐Substituted‐3‐aryl‐5H,13aH‐quinolino[3,2‐f][1,2,4]triazolo[4,3‐b] [1,2,4]triazepines.
Authors: Gupta Monika , Paul Satya , Gupta Rajive 
Published: August 2010

AbstractA series of novel quinolinotriazolotriazepines (III) (10 examples) are synthesized by acid‐catalyzed reaction of diamino‐triazoles (I) with 2‐chloro‐3‐formylquinolines under microwave irradiation as well as thermal conditions.
ChemInform Abstract: Antiinflammatory Eunicellin‐Based Diterpenoids from the Cultured Soft Coral Klyxum simplex
Authors: Chen Bo‐Wei , Chao Chih‐Hua , Su Jui‐Hsin , Wen Zhi‐Hong , Sung Ping‐Jyun , Sheu Jyh‐Horng 
Published: August 2010

Abstractisolation, structure elucidation and antiinflammatory activity of klysimplexin sulfoxides A (I), B (II), and C (III)
ChemInform Abstract: Synthesis of Modified Methyl Furanosides by Intramolecular Oxa‐Michael Reaction Followed by Pummerer Rearrangement.
Authors: Gamba‐Sanchez Diego , Prunet Joelle 
Published: August 2010

AbstractThe method provides a new and efficient method to prepare ribofuranosides modified at the 3‐ and 5‐positions.
ChemInform Abstract: Syntheses of (‐)‐Hygrine (V) and (‐)‐Norhygrine (VI) via Wacker Oxidation.
Authors: Majik Mahesh S. , Tilve Santosh G. 
Published: August 2010

AbstractKey step is the Wacker oxidation for the formation of carbonyl compound (IV) in a regioselective manner.
ChemInform Abstract: Synthesis of Heneicos‐6(Z)‐en‐11‐one (III), Dec‐5(Z)‐en‐1‐yl Acetate (VIa), Dec‐5(Z)‐en‐1‐yl‐3‐methylbutanoate (VIb) (Insect Sex Pheromones)
Authors: Jindal Rani , Devi Aarti , Kad Goverdhan L. , Singh Jasvinder 
Published: August 2010

Abstractutilizing selective hydroboration—iodidation/oxidation reactions as key step
ChemInform Abstract: Total Synthesis of Hirtellanine A.
Authors: Zheng Shu‐Yan , Shen Zheng‐Wu 
Published: August 2010

AbstractThe efficient synthesis of title compound (XI), a biologically active constituent isolated from the roots of Campylotropis hirtella, involves the regioselective formation of the pyran ring, the Suzuki coupling of fragments (VII) and (VIII) and a final tandem acid‐induced deprotection/tautomerization as the key steps.
ChemInform Abstract: First Stereoselective Total Synthesis of Stagonolide G (Vb).
Authors: Srihari P. , Kumaraswamy B. , Bhunia Dinesh C. , Yadav J. S. 
Published: August 2010

AbstractStarting from the D‐glucose diacetonide (I), a convergent synthesis is developed using Grubbs′ ring closing metathesis as the key step.
ChemInform Abstract: Ophiosetin, a New Tetramic Acid Derivative from the Mycopathogenic Fungus Elaphocordyceps ophioglossoides.
Authors: Putri Sastia Prama , Kinoshita Hiroshi , Ihara Fumio , Igarashi Yasuhiro , Nihira Takuya 
Published: August 2010

AbstractOphiosetin (I), a new tetramic acid derivative, only shows weak activity against E.
Enantioselective pharmacokinetics of (R)‐ and (S)‐ketamine after a 5‐day infusion in patients with complex regional pain syndrome
Authors: Goldberg Michael E. , Torjman Marc C. , Schwartzman Robert J. , Mager Donald E. , Wainer Irving W. 
Published: August 2010

AbstractIntroduction: This study determined the pharmacokinetics and pharmacodynamics of (R)‐ and (S)‐ketamine and (R)‐ and (S)‐norketamine following a 5‐day moderate dose, as a continuous (R,S)‐ketamine infusion in complex regional pain syndrome (CRPS) patients.Materials and methods: Ketamine was titrated to 10–40 mg/h and maintained for 5 days. (R)‐ and (S)‐Ketamine and (R)‐ and (S)‐norketamine pharmacokinetic and pharmacodynamic studies were performed. Blood samples were obtained on Day 1 preinfusion, and at 60–90, 120–150, 180–210, and 240–300 min after the start of the infusion, on Days 2, 3, 4, 5, and on Day 5 at 60 min after the end of infusion. The plasma concentrations of (R)‐ and (S)‐ketamine and (R)‐ and (S)‐norketamine were determined using enantioselective liquid chromatography–mass spectrometry.Results: Ketamine and norketamine levels stabilized 5 h after the start of the infusion. (R)‐Ketamine clearance was significantly lower resulting in higher steady‐state plasma concentrations than (S)‐ketamine. The first‐order elimination for (S)‐norketamine was significantly greater than that of (R)‐enantiomer. When comparing the pharmacokinetic parameters of the patients who responded to ketamine treatment with those who did not, no differences were observed in ketamine clearance and the first‐order elimination of norketamine.Conclusion: The results indicate that (R)‐ and (S)‐ketamine and (R)‐ and (S)‐norketamine plasma concentrations do not explain the antinociceptive activity of the drug in patients suffering from CRPS. Chirality, 2011. © 2010 Wiley‐Liss, Inc.
Mechanical resolution of chiral objects in achiral media: Where is the size limit?
Authors: Tencer Michal , Bielski Roman 
Published: August 2010

AbstractMacroscopic chiral objects (boats and planes with turned rudders, shoes, etc.) get separated from their mirror‐image counterparts by motion in achiral media. However, chiral molecules are not enantio‐differentiated without the presence of a chiral environment, which may be due to other chiral molecules in the medium. This article explores the reasons of this micro/macro difference as well as the size borderline between the two regimes. There are two major demarcation lines, both related to the object's chaotic thermal motion. The first one is due to destruction of the necessary spatial orientation by the fast rotational diffusion. Only particles larger than 1 μm can maintain their original orientation for 1 sec or longer. For smaller particles, an additional external orienting factor, e.g., a strong electric field has to be applied. The second limitation is defined by the ratio of the hydrodynamic separation of the enantiomers (which is directly proportional to time) to their displacement due to the translational Brownian motion (which is proportional to square root of time). On the laboratory time scales (up to a year), the chiral objects have to be larger than 0.25 μm to be resolved. On evolutionary time scales, much smaller object could be resolved. For enantiomers approaching the molecular size, periods comparable to the age of the universe would be required. Chirality, 2011. © 2010 Wiley‐Liss, Inc.
A lab‐scale reaction calorimeter for olefin polymerization
Authors: Tisse Virginie F. , Sheibat‐Othman Nida , McKenna Timothy F. L. 
Published: August 2010

AbstractA reaction calorimeter was built to follow slurry‐phase polymerizations of ethylene using different types of supported catalysts. It was shown that heat flow calorimetry, employing a high‐gain observer for the evaluation of the initial conditions was an extremely useful tool for the measurement of on‐line reaction rates, and a study of the influence of different parameters such as the stirring rate or solid content in real time. It was shown that if one uses solid contents under 30% (volume) then it is not necessary to account for the influence of this quantity on the overall heat transfer coefficient.Un calorimètre de réaction a été construit pour le suivi des polymérisations des phases de suspension de l'éthylène utilisant différents types de catalyseurs adaptés. Il a été démontré que la calorimétrie du flux thermique, utilisant un observateur à gain élevé pour l'évaluation des conditions initiales s'est avérée un outil extrêmement utile pour mesurer les taux de réaction en ligne, et pour l'étude en temps réel de l'influence de différents paramètres tels que la vitesse d'agitation ou le contenu en matière solide. Il a été démontré que si l'on utilise la matière solide en dessous de 30% (en termes de volume), alors il n'est pas nécessaire de prendre en compte l'influence de cette quantité sur le coefficient global de transfert thermique. Can. J. Chem. Eng. © 2010 Canadian Society for Chemical Engineering
Mass transfer and mixing characteristics in an airlift‐driven fibrous‐bed bioreactor
Authors: Kilonzo Peter M. , Margaritis Argyrios , Bergougnou Maurice A. 
Published: August 2010

AbstractAn internal loop airlift‐driven fibrous bed bioreactor (ILALFBB) was designed and developed with a high degree of flexibility to handle genetically engineered and fragile shear‐sensitive cells. The mixing and oxygen mass transfer characteristics have been investigated. A cotton fibre was set in the downcomer of the ILALB to represent the fibrous packed bed and the outcome results were compared with those of the polyurethane foam (PUF) packed and unpacked ILALB systems. The effects of fibre, packing height, bed top and bottom clearances, spacing between adjacent fibre surfaces, and superficial gas velocity were investigated. The liquid phase mixing output variables included the liquid circulation velocity (ULc), circulation time (tLc), mixing time (tLm), Bodenstein number (BoL), and axial dispersion coefficient (EL), whereas the mass transfer out variable was the KLa. BoL and EL in the riser and downcomer regions of all packed systems increased with increasing in packing height, packing top clearance, and superficial gas velocity, except the overall BoL was independent of gas velocity at low gas velocities. The BoL was found highest in the riser of the large cotton and small PUF packed system with large spacing and the EL in the downcomer of PUF packed systems with smaller spacing between fibre surfaces. Increased amounts of packing in the ILALB, whether in the form of cotton or PUF decreased the ULc in the bioreactor because of the increased frictional resistance and tortuosity. The reduction in ULc was significant for large packing with smaller spacing between fibre surfaces and increased bottom clearances of the cotton packed system. High circulation times (tLc) and shorter mixing times (tLm) were achieved using small PUF packing with large top clearance. Relatively high KLa values were obtained using large packing with large top clearances and spacing between fibre surfaces. The boost in KLa was associated with increased gas holdup and/or interfacial area, due to bubble breakage by the shearing action of the fibrous‐bed. Empirical correlation proposed for EL, BoL, and KLa gave a good fit of the experimental data.
MeOH to DME in bubbling fluidized bed: Experimental and modelling
Authors: Kaarsholm Mads , Joensen Finn , Cenni Roberta , Chaouki Jamal , Patience Gregory S. 
Published: August 2010

AbstractMethanol dehydration over a ZSM‐5 containing catalyst was studied in a fluidized bed reactor. At temperatures ranging from 250 to 325°C, methanol conversion varied from 30% at a contact times of 0.14 s and approached 100% of the equilibrium conversion at a contact time starting from 10 s. Sequential and parallel reactions were negligible at low temperatures while hydrocarbon formation became appreciable at 325°C. Online gas analysis by mass spectrometry provided real‐time measurements at a frequency of 4.4 Hz that allowed for fast determination of steady‐state conditions. Gas phase residence time distribution (RTD) measurements indicated that axial dispersion was essentially negligible at short contact times with a shallow bed of catalyst. With longer residence times, the flow pattern could be approximated by six continuously stirred‐tank reactors (CSTR) in series. Both the simple 1D hydrodynamic model and a detailed multi‐zone fluidized model were used to interpret the experimental data to derive a kinetic expression for the dehydration of methanol to di‐methyl ether (DME). The expression includes the reverse reaction that is most often neglected in the literature. The reaction data were best fit with the kinetics based on the 1D model. The fluidized bed is a viable reactor type for kinetic measurements of highly exothermic reactions where hotspots and radial and axial temperature gradients are problematic in fixed beds.
Determination of Cyanuric Acid in Swimming Pool Water and Milk by Differential Pulse Polarography
Authors: Yilmaz Ümmihan T. , Yazar Zehra 
Published: August 2010

AbstractCyanuric acid is a suspected gastrointestinal or liver toxicant in humans. Therefore, determination of trace cyanuric acid is very important, in this work a novel, sensitive, and reliable method was developed using differential pulse polarography. Optimum conditions for analytical determination were found to be at a pH of 9.5, Britton–Robinson at a reduction potential of −105 mV. Experimental results indicate an excellent linear correlation between the peak current and the concentration in the range of cyanuric acid from 0.5 to 27.0 µM (0.06–3.5 µg mL−1) with a correlation coefficient of 0.997. The limit of detection and limit of quantification were obtained as 0.15 and 0.5 µM (0.02–0.06 µg mL−1), respectively. The proposed method was successfully applied to the determination of cyanuric acid in pool water and in spiked milk. Cyanuric acid level in swimming pool water was found as 2.54 ± 0.47 µg mL−1 (19.7 ± 2.29 µM) in swimming pool water for N = 4 and 95% confidence interval. The recoveries were found to be sufficient. Also, the standard deviation of the data was low which shows high accuracy and precision of proposed differential pulse polarographic method. The influences of some other commonly found inorganic salts on the determination of cyanuric acid were also examined. Some interfering species were eliminated using complexing agents, e.g., EDTA.
Synthesis and Evaluation of Bombesin Analogues Conjugated to Two Different Triazolyl‐Derived Chelators for 99mTc Labeling
Authors: Brans Luc , García‐Garayoa Elisa , Schweinsberg Christian , Maes Veronique , Struthers Harriet , Schibli Roger , Tourwé Dirk 
Published: August 2010

AbstractOverexpression of the gastrin‐releasing peptide receptor (GRPR) in a variety of human carcinomas has provided a means of diagnosis and treatment. Previously we reported a metabolically stable (NαHis)Ac‐βAla‐βAla‐[Cha13,Nle14]BBS(7–14) analogue with high affinity for the GRPR. We have also shown that the biodistribution pattern of this fairly lipophilic, radiolabeled peptide can be enhanced by glycation, which is easily carried out by CuI‐catalyzed cycloaddition. Herein, we further elaborate this “click approach” in the synthesis of a new series of triazole‐based chelating systems as alternatives to the (NαHis)Ac chelator for labeling with the 99mTc(CO)3 core. The bombesin analogues, containing these new chelating systems, were evaluated with regard to their synthesis and in vitro and in vivo properties, and were compared with their (NαHis)Ac counterparts. The influence of the chelator on biodistribution properties was less than that of glycation, which clearly improved the tumor‐to‐background ratios.