bluuebunny/crossref_metadata_2025 huggingface dataset:
Über einige Derivate der Benzoylessigsäure
Authors: Dornow Alfred , Kühlcke Ilse , Baxmann Fritz
Published: May 2007

Es wird die Darstellung einer Reihe von Derivaten des stark süßschmeckenden β‐Imino‐β‐phenyl‐propionsäurenitrils (Benzoacetodinitrils) beschrieben. Durch 2‐ und 3‐Substitutionen im Benzolkern wird der süße Geschmack aufgehoben, während er durch 4‐Substitutionen u. U. sogar verstärkt wird.
Neue Synthesen von Xanthin, Coffein und Theobromin
Authors: Bredereck Hellmut , von Schuh Heinz‐Georg , Martini Anneliese
Published: May 2007

Durch Behandeln von Harnsäure mit Formamid bzw. Acetamid entstehen Xanthin bzw. 8‐Methyl‐xanthin. 4.5‐Diamino‐uracil und seine 3.‐ oder 1.3‐Derivate geben mit Formamid ebenfalls Xanthin bzw. 3.‐ Methyl‐xanthin oder Theophyllin. Durch Methylierung von Xanthin mit Dimethylsulfat werden je nach den Bedingungen Coffein oder Theobromin erhalten.
Synthese des β‐Chromanons
Authors: Pfeiffer Paul , Enders Edgar
Published: May 2007

Nach langen vergeblichen Versuchen gelang schließlich auf ganz einfache Weise ausgehend von der o‐Carboxymethoxy‐phenylessigsäure die Synthese des β‐Chromanons.
Pikromycin, ein bitter schmeckendes Antibioticum aus Actinomyceten (Antibiotica aus Actinomyceten, VI. Mitteil
Authors: Brockmann Hans , Henkel Willfried
Published: May 2007

Es wird die Isolierung eines bitter schmeckenden Antibioticums aus einem Streptomyces‐Stamm beschrieben, für das die Bruttoformel C25H43O7N ermittelt wurde. Durch Alkali ließ sich daraus ein stickstoff‐freies Abbauprodukt C20H30O5 gewinnen.
Mass Transfer Around a Spheroid Buried in Granular Beds of Small Inert Particles and Exposed to Fluid Flow
Authors: Delgado J. M. P. Q.
Published: May 2007

Mass transfer between a single prolate spheroid buried in a porous media and exposed to fluid flow has been theoretically studied, for convection with molecular diffusion. A general solution of this problem is not available analytically and two particular cases were considered for the purpose of the present work. The analytical steady‐state solutions for the limiting cases of mass transfer with a thin concentration boundary layer (high values of Peclet number) and the pure diffusion regime (diffusion in a stagnant fluid) were obtained. The solution is expected to describe the problem of mass transfer between a large soluble prolate spheroid and the fluid flowing around it in the interstices of a packed bed, with an error of less than 10 %.
Kinetic Modeling of Phenol Hydroxylation for a Simulated Prognosis of Its Continuous Operation
Authors: Schulz‐Ekloff G. , Thiele G. , Brunßen D. , Koch E. , Alvarez L.
Published: May 2007

Phenol hydroxylation to dihydroxybenzenes as an example of the class of partial oxidation reactions with hydrogen peroxide is studied by comparing discontinuous and quasi‐continuous operations. A process model is developed from an experimental analysis of reaction compositions at 40 °C, an estimation of model parameters by process identification using adequate search strategies, and validations by simulations. The simulations use the function block diagram language. Space‐time yields are compared for various scenarios, i.e., different ratios of phenol to hydrogen peroxide and, for quasi‐continuous operation, altered flow rates or frequencies for hydrogen peroxide pulses. The quasi‐continuous operation is superior in most scenarios, resulting in each case in much less waste production.
CH Activation and CC Double Bond Formation Reactions in Iridium ortho‐Methyl Arylphosphane Complexes
Authors: Baratta Walter , Ballico Maurizio , Del Zotto Alessandro , Zangrando Ennio , Rigo Pierluigi
Published: May 2007

The Vaska‐type iridium(I) complex [IrCl(CO){PPh2(2‐MeC6H4)}2] (1), characterized by an X‐ray diffraction study, was obtained from iridium(III) chloride hydrate and PPh2(2,6‐MeRC6H3) with R=H in DMF, whereas for R=Me, activation of two ortho‐methyl groups resulted in the biscyclometalated iridium(III) compound [IrCl(CO){PPh2(2,6‐CH2MeC6H3)}2] (2). Conversely, for R=Me the iridium(I) compound [IrCl(CO){PPh2(2,6‐Me2C6H3)}2] (3) can be obtained by treatment of [IrCl(COE)2]2 (COE=cyclooctene) with carbon monoxide and the phosphane in acetonitrile. Compound 3 in CH2Cl2 undergoes intramolecular CH oxidative addition, affording the cyclometalated hydride iridium(III) species [IrHCl(CO){PPh2(2,6‐CH2MeC6H3)}{PPh2(2,6‐Me2C6H3)}] (4). Treatment of 2 with Na[BArf4] (Arf=3,5‐C6H3(CF3)2) gives the fluxional cationic 16‐electron complex [Ir(CO){PPh2(2,6‐CH2MeC6H3)}2][BArf4] (5), which reversibly reacts with dihydrogen to afford the δ‐agostic complex [IrH(CO){PPh2(2,6‐CH2MeC6H3)}{PPh2(2,6‐Me2C6H3)}][BArf4] (6), through cleavage of an IrC bond. This species can also be formed by treatment of 4 with Na[BArf4] or of 2 with Na[BArf4] through CH oxidative addition of one ortho‐methyl group, via a transient 14‐electron iridium(I) complex. Heating of the coordinatively unsaturated biscyclometalated species 5 in toluene gives the trans‐dihydride iridium(III) complex [IrH2(CO){PPh2(2,6‐MeC6H3CHCHC6H3Me‐2,6)PPh2}][BArf4] (7), containing a trans‐stilbene‐type terdentate ligand, as result of a dehydrogenative carboncarbon double bond coupling reaction, possibly through an iridium carbene species.
Self‐Assembly of Nanosize Coordination Cages on Si(100) Surfaces
Authors: Busi Marco , Laurenti Marco , Condorelli Guglielmo G. , Motta Alessandro , Favazza Maria , Fragalà Ignazio L. , Montalti Marco , Prodi Luca , Dalcanale Enrico
Published: May 2007

Bottom‐up fabrication of 3D organic nanostructures on Si(100) surfaces has been achieved by a two‐step procedure. Tetradentate cavitand 1 was grafted on the Si surface together with 1‐octene (Oct) as a spatial spectator by photochemical hydrosilylation. Ligand exchange between grafted cavitand 1 and self‐assembled homocage 2, derived from cavitand 5 bearing a fluorescence marker, led to the formation of coordination cages on Si(100). Formation, quantification, and distribution of the nanoscale molecular containers on a silicon surface was assessed by using three complementary analytical techniques (AFM, XPS, and fluorescence) and validated by control experiments on cavitand‐free silicon surfaces. Interestingly, the fluorescence of pyrene at ≈4 nm above the Si(100) surface can be clearly observed.
Synthesis, Crystal Structure, and Microstructure Analysis of Perovskite‐Type Compounds LnCo0.95Ni0.05O3 (Ln: La, Pr, Nd, Sm, Gd, and Dy).
Authors: Aguirre M. H. , Robert R. , Logvinovich D. , Weidenkaff A.
Published: May 2007

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.
Structure Refinement of CePtSi and Hydrogenation Behavior of CePdGe, CePtSi and CePtGe.
Authors: Hermes Wilfried , Rodewald Ute Ch. , Chevalier Bernard , Poettgen Rainer
Published: May 2007

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.
Synthesis, Characteristics and Electrical Properties of Heteropoly Compound Na2K3CuV (OH2)W11O39×16H2O Permeated by Gd.
Authors: Wang Lili , Zhou Baibin , Cao Jingjing , Wang Yunpeng
Published: May 2007

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.
Structure and Thermoelectric Characterization of AxBa8‐xAl14Si31 (A: Sr, Eu) Single Crystals.
Authors: Condron Cathie L. , Kauzlarich Susan M. , Nolas G. S.
Published: May 2007

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.
Homogeneity Range of ε‐Phase Zn4Sb3.
Authors: Nakamoto G. , Akai N. , Kurisu M. , Kim I.‐H. , Ur S.‐C. , Kuznetsov V. L.
Published: May 2007

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.
Highly Enantioselective Nitroaldol Reaction Catalyzed by New Chiral Copper Complexes.
Authors: Bandini Marco , Piccinelli Fabio , Tommasi Simona , Umani‐Ronchi Achille , Ventrici Caterina
Published: May 2007

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.
Preparation of Heterocycles by Microwave‐Induced Retro Diels—Alder Reaction.
Authors: Miklos Ferenc , Stajer Geza , Fueloep Ferenc
Published: May 2007

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.
Electrochemical Generation of Cationic Pd Catalysts and Application to Pd/TEMPO Double‐Mediatory Electrooxidative Wacker‐Type Reactions.
Authors: Mitsudo Koichi , Kaide Takashi , Nakamoto Eriko , Yoshida Kenta , Tanaka Hideo
Published: May 2007

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.
An Efficient Conjugate Hydrocyanation of Chalcones and Related Enones with TMSCN under Solvent‐ and Additive‐Free Microwave Conditions.
Authors: Iida Hirokazu , Moromizato Tatsuya , Hamana Hiroshi , Matsumoto Kiyoshi
Published: May 2007

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.
From Inconsistent Results to High Speed Hydrosilylation.
Authors: Comte Virginie , Balan Cedric , Le Gendre Pierre , Moise Claude
Published: May 2007

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.
Convenient Synthesis of Benzene‐1,3,5‐tricarbaldehyde and Congeners.
Authors: Tullberg Erik , Frejd Torbjoern
Published: May 2007

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.
Transformation of Aryl Acyloin O‐Alkyl and O‐Phenyl Derivatives to Ketones.
Authors: Yao Zhiyi , Ye Deju , Liu Hong , Chen Kaixian , Jiang Hualiang
Published: May 2007

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.
Bifunctional Polymeric Organocatalysts and Their Application in the Cooperative Catalysis of Morita—Baylis—Hillman Reactions.
Authors: Kwong Cathy Kar‐Wing , Huang Rui , Zhang Minjuan , Shi Min , Toy Patrick H.
Published: May 2007

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.
CuCl‐Catalyzed Regio‐ and Stereoselective Aminohalogenation of α,β‐Unsaturated Nitriles.
Authors: Han Jian‐Lin , Zhi San‐Jun , Wang Le‐Yong , Pan Yi , Li Guigen
Published: May 2007

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.
Synthesis of Optically Active Cyanohydrins from Aromatic Ketones: Evidence of an Increased Substrate Range and Inverted Stereoselectivity for the Hydroxynitrile Lyase from Linum usitatissimum.
Authors: Roberge Christopher , Fleitz Fred , Pollard David , Devine Paul
Published: May 2007

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.
Synthesis of Symmetrically and Unsymmetrically para‐Functionalized p‐Quaterphenylenes.
Authors: Schiek Manuela , Al‐Shamery Katharina , Luetzen Arne
Published: May 2007

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.
Microwave‐Promoted Heck Reaction Using Pd(OAc)2 as Catalyst under Ligand‐Free and Solvent‐Free Conditions.
Authors: Du Li‐Hua , Wang Yan‐Guang
Published: May 2007

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.
Palladium‐Catalyzed Carboannulation of Propargylic Carbonates and Nucleophiles to 2‐Substituted Indenes.
Authors: Guo Li‐Na , Duan Xin‐Hua , Bi Hai‐Peng , Liu Xue‐Yuan , Liang Yong‐Min
Published: May 2007

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.
1,3‐Dipolar Cycloaddition of Nitrile Oxides to (R)‐1‐(1‐Phenylethyl)‐3‐ [(E)‐arylmethylidene]tetrahydro‐4(1H)‐pyridinones: Synthesis of Enantiomerically Pure Spiro Heterocycles.
Authors: Kumar Raju Suresh , Perumal Subbu , Kagan Henri B. , Guillot Regis
Published: May 2007

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.
Synthesis of Sterically Congested Bicyclic Tetrahydrofurans via Pd‐Catalyzed Cyclization.
Authors: Shin Chul , Oh Youna , Cha Joo Hwan , Pae Ae Nim , Choo Hyunah , Cho Yong Seo
Published: May 2007

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.
Synthesis of Chlorinated β‐ and γ‐Lactones from Unsaturated Acids with Sodium Hypochlorite and Lewis Acids.
Authors: Lopez‐Lopez Jose A. , Guerra Francisco M. , Moreno‐Dorado F. Javier , Jorge Zacarias D. , Massanet Guillermo M.
Published: May 2007

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.
A New, Highly Stereoselective Synthesis of β‐Unsubstituted (Z)‐γ‐Alkylidenebutenolides Using Bromine as a Removable Stereocontrol Element.
Authors: Boukouvalas John , Beltran Paola P. , Lachance Nicolas , Cote Sebastien , Maltais Francois , Pouliot Martin
Published: May 2007

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.
Synthesis of Simple 3,4‐Diarylpyrrole‐2,5‐dicarboxylic Acids and Lukianol A by Oxidative Condensation of 3‐Arylpyruvic Acids with Ammonia.
Authors: Hinze Claudia , Kreipl Andreas , Terpin Andreas , Steglich Wolfgang
Published: May 2007

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.
A Non‐Classical Route to 2,3‐Diiodoindoles from Indole‐2‐carboxylic Acids.
Authors: Putey Aurelien , Popowycz Florence , Joseph Benoit
Published: May 2007

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.
Ruthenium‐Catalyzed Isomerization of Allylhydrazines: A New Entry to the Fischer Indole Synthesis.
Authors: Nielsen Simon D. , Ruhland Thomas , Rasmussen Lars K.
Published: May 2007

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.
Grignard Cyclization Reaction of Fluorinated N‐Arylimidoyl Chlorides: A Novel and Facile Access to 2‐Fluoroalkyl Indoles.
Authors: Ge Fenglian , Wang Zengxue , Wan Wen , Hao Jian
Published: May 2007

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.
Domino N—H/C—H Bond Activation: Palladium‐Catalyzed Synthesis of Annulated Heterocycles Using Dichloro(hetero)arenes.
Authors: Ackermann Lutz , Althammer Andreas
Published: May 2007

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.
Investigations of Regio‐ and Stereoselectivities in the Synthesis of Cytotoxic Isoxazolidines Through 1,3‐Dipolar Cycloadditions of Nitrones to Dipolarophiles Bearing an Allylic Oxygen.
Authors: Singh Rajinder , Bhella Surinderjit Singh , Sexana A. K. , Shanmugavel M. , Faruk Abdul , Ishar M. P. S.
Published: May 2007

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.
A Convenient Synthesis of 1,4,5‐Trisubstituted 1,2,3‐Triazoles via 1,3‐Dipolar Cycloaddition/Coupling of Alkynes, Phenylboronic Acids, and Sodium Azide Catalyzed by Cu(I)/Cu(II).
Authors: Yang Dong , Fu Na , Liu Zenglu , Li Ying , Chen Baohua
Published: May 2007

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.
Convenient Method for Synthesis of Substituted 2‐Amino‐2‐chromenes.
Authors: Zhang Ai‐Qin , Zhang Ming , Chen Huan‐Huan , Chen Jun , Chen Hai‐Yan
Published: May 2007

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.
One‐Pot Synthesis of New 3‐Substituted Coumarins by Tandem Reactions.
Authors: Bourahla Khadidja , Rahmouni Mustapha , Fraga‐Dubreuil Joan , Bazureau Jean Pierre , Hamelin Jack
Published: May 2007

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.
Azulene‐Substituted Pyridines and Pyridinium Salts. Synthesis and Structure. Part 2. Azulene‐Substituted Pyridinium Salts.
Authors: Razus Alexandru C. , Birzan Liviu , Pavel Claudia , Lehadus Oana , Corbu Andreea , Chiraleu Filip , Enache Cristian
Published: May 2007

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.
One‐Pot Synthesis of Polysubstituted Pyridine Derivatives Using Ketene Dithioacetals.
Authors: Hagimori Masayori , Mizuyama Naoko , Hisadome Yukari , Nagaoka Junko , Ueda Kazuo , Tominaga Yoshinori
Published: May 2007

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.
Asymmetric Synthesis of Conformationally Constrained trans‐2,3‐Piperidinedicarboxylic Acid Derivatives.
Authors: Zhuo Jincong , et al. et al.
Published: May 2007

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.
A Novel Reaction of 4‐(Arylmethylene)‐2‐phenyloxazol‐5(4H)‐ones with Pyridin‐2‐amine: Formation of 3‐(Arylmethyl)‐3‐(benzoylamino)imidazo[1,2‐a]pyridin‐2(3H)‐ones.
Authors: Tu Shujiang , Zhang Junyong , Jia Runhong , Zhang Yan , Jiang Bo , Shi Feng
Published: May 2007

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.
Cobalt‐Catalyzed Intramolecular [2 + 2 + 2] Cocyclotrimerization of Nitrilediynes: An Efficient Route to Tetra‐ and Pentacyclic Pyridine Derivatives.
Authors: Chang Hong‐Tai , Jeganmohan Masilamani , Cheng Chien‐Hong
Published: May 2007

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.
New Straightforward Synthesis of 2‐Amino‐6‐methyl‐5‐(pyridin‐4‐ylsulfanyl)‐3H‐quinazolin‐4‐one.
Authors: Chen Wei‐Min , Wan Shan‐He
Published: May 2007

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.
Phosphine‐Catalyzed Tandem α‐O‐Addition and Transesterification of Oxygen Pronucleophiles on Arylpropiolates: A New Route to Dioxygenated Heterocycles.
Authors: Gabillet Sandra , Lecercle Delphine , Loreau Olivier , Dezard Sophie , Gomis Jean‐Marie , Taran Frederic
Published: May 2007

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.
An Unprecedented Methylene Oxidation Accompanying the Aza Diels—Alder Reactions of Acyclic Unactivated Alkenes: Synthesis of Novel Quinolin‐3‐one Substituted Pyrimidinone Derivatives.
Authors: Mohan Chander , Bhargava Gaurav , Pannu A. P. S. , Mahajan Mohinder P.
Published: May 2007

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.
Facile Synthesis of Triarylpyrimidines with Microwave‐Irradiated Reactions of N‐Phenacylpyridinium Chloride.
Authors: Wu Ping , Cai Xi‐Mei , Wang Qi‐Fang , Yan Chao‐Guo
Published: May 2007

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.
Reaction of β‐Lapachone with 1,2‐Diamines: Facile Synthesis of Novel Tetracyclic Pyrazines.
Authors: Singh Pahup , Dandia Anshu , Natani Kavita , Sharma Venu , Ratnani Raju , Bingham A. L. , Hursthouse M. B. , Light M. E. , Drake J. E.
Published: May 2007

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.
Convenient Syntheses of Troeger′s Base Derivatives in Ionic Liquids.
Authors: Wu Hui , Zhang Pu , Shen Yang , Zhang Fu‐ren , Wan Yu , Shi Da‐qing
Published: May 2007

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.
Intramolecular Amidation: Synthesis of Novel Thiazole‐Fused Diazepinones.
Authors: Koti Rajesh S. , Kolavi Gundurao D. , Hegde Vinayak S. , Khazi I. M.
Published: May 2007

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.
Synthesis of 4:5‐Benzo‐1‐cobalta‐2‐silacyclopentenes and Their Reactions with Alkynes and Alkenes: An Expedient Route to Silicon‐Containing Polycyclic Frameworks.
Authors: Agenet Nicolas , Mirebeau Jean‐Hugues , Petit Marc , Thouvenot Rene , Gandon Vincent , Malacria Max , Aubert Corinne
Published: May 2007

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.
Stereoselective Synthesis of (‐)‐4‐Epiaxinyssamine (I).
Authors: Castellanos Leonardo , Duque Carmenza , Rodriguez Jaime , Jimenez Carlos
Published: May 2007

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.
Sesquiterpenes and Phenolic Compounds from Achillea clypeolata.
Authors: Werner Ingrid , Mucaji Pavel , Presser Armin , Glasl Sabine
Published: May 2007

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.
New Cycloartane‐Type Triterpenoids from Artocarpus nobilis.
Authors: Zahid Shamsulhaq , Ata Athar , Samarasekera Radhika
Published: May 2007

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.
Medicinal Flowers. Part 12. New Spirostane‐Type Steroid Saponins with Antidiabetogenic Activity from Borassus flabellifer.
Authors: Yoshikawa Masayuki , Xu Fengming , Morikawa Toshio , Pongpiriyadacha Yutana , Nakamura Seikou , Asao Yasunobu , Kumahara Akira , Matsuda Hisashi
Published: May 2007

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.
Improved Conditions for the Asymmetric Synthesis of α‐Amino Acids Using Cinchona‐Derived Anthracenylmethyl Ammonium Salts as Chiral Phase‐Transfer Organocatalysts.
Authors: Chinchilla Rafael , Najera Carmen , Ortega Francisco J.
Published: May 2007

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.
Simple and General Synthesis of α‐(p‐Nitroaryl) Derivatives of Alanine and Serine.
Authors: Makosza Mieczyslaw , Surowiec Marek , Szczepanska Agnieszka , Sulikowski Daniel , Maltsev Oleg
Published: May 2007

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.
Oxidative Cleavage of 3‐Alkoxy‐2,5‐dihydrofurans and Its Application to the De Novo Synthesis of Rare Monosaccharides as Exemplified by L‐Cymarose.
Authors: Brasholz Malte , Reissig Hans‐Ulrich
Published: May 2007

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.
Flux (2): Comparison of Molecular Mutation and Crossover Operators for Ligand‐Based de Novo Design.
Authors: Fechner Uli , Scheider Gisbert
Published: May 2007

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.
A Toxicity Evaluation and Predictive System Based on Neural Networks and Wavelets.
Authors: Piotrowski P. L. , Sumpter B. G. , Malling H. V. , Wassom J. S. , Lu P. Y. , Brothers R. A. , Sega G. A. , Martin S. A. , Parang M.
Published: May 2007

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.
Applications of Single‐Site Photocatalysts Implanted within the Silica Matrixes of Zeolite and Mesoporous Silica
Authors: Yamashita Hiromi , Mori Kohsuke
Published: May 2007

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.
Non‐Aqueous Sol—Gel Synthesis of Nano‐Structured Metal Fluorides
Authors: Ruediger Stephan , Gross Udo , Kemnitz Erhard
Published: May 2007

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.
New Metal‐Catalyzed Carbocyclization Reactions for the Construction of Complex Natural Products
Authors: Evans P. Andrew , Baum Erich W. , Fazal Aleem N. , Lai Kwong Wah , Robinson John E. , Sawyer James R.
Published: May 2007

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.
Recent Advances in Nickel‐Catalyzed Suzuki Cross‐Coupling Reactions
Authors: Gracias Vijaya , Iyengar Rajesh
Published: May 2007

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.
Chemoenzymatic Synthesis of Complex Natural and Unnatural Products: Morphine, Pancratistatin and Their Analogues
Authors: Hudlicky Tomas
Published: May 2007

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.
Nickel‐Catalyzed Cross‐Coupling Reactions.
Authors: Takahashi Tamotsu , Kanna Ken‐ichiro
Published: May 2007

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.
The Carbene Insertion Methodology for the Catalytic Functionalization of Unreactive Hydrocarbons: No Classical C—H Activation but Efficient C—H Functionalization
Authors: Diaz‐Requejo M. Mar , Belderrain Tomas R. , Nicasio M. Carmen , Perez Pedro J.
Published: May 2007

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.
1,1‐Bis(organosulfanyl)alk‐1‐enes (= Ketene S,S‐acetals)
Authors: Doelling W.
Published: May 2007

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.
Catalytic Applications of Hydrotalcite‐like Materials and Their Derived Forms
Authors: Kannan S.
Published: May 2007

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.
Chemical and Metabolic Transformations of Selected Bile Acids
Authors: Kuhajda K. , Kevresan S. , Kandrac J. , Fawcett J. P. , Mikov M.
Published: May 2007

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.
1‐Nitrogen‐Functionalized 2‐ (Organochalcogeno)acetylenes
Authors: Murai T.
Published: May 2007

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.
The Use of N‐isopropyl‐2,2′‐bipyrrolidine Derivatives as Organic Catalysts for Asymmetric Michael Additions
Authors: Mosse Sarah , Andrey Olivier , Alexakis Alexandre
Published: May 2007

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.
Cyclative Cleavage: A Versatile Concept in Solid‐Phase Organic Chemistry.
Authors: Pernerstorfer Josef
Published: May 2007

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.
1‐Halo‐1‐(organooxy)alk‐1‐enes
Authors: Molchanov A. P. , Kostikov R. R.
Published: May 2007

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.
1,1‐Dihaloalk‐1‐enes
Authors: Kostikov R. R.
Published: May 2007

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.
Development of Ruthenium Catalyzed Oxidation Reactions Inspired by Cytochrome P‐450
Authors: Murahashi Shun‐Ichi
Published: May 2007

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.
Do NK‐Cell Receptors and Alloreactivity Affect Solid Organ Transplantation?
Authors: Vilches Carlos , Parham Peter
Published: May 2007

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.
Biocatalysis and Organocatalysis: Asymmetric Synthesis Inspired by Nature
Authors: List Benjamin
Published: May 2007

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.
Synthesis and Characterization of Silver‐Nanoparticle‐Deposited α‐Bi2Mo3O12 Nanorods
Authors: Ghule Anil Vithal , Ghule Kalyani , Tzing Shin‐Hwa , Ling Yong‐Chien
Published: May 2007

Silver (Ag) nanoparticles with an average size of ca. 10 nm were uniformly deposited on the surface of α‐Bi2Mo3O12 nanorods by using an ultrasound sonication method. Ultrasonic irradiation of preformed α‐Bi2Mo3O12 spherical nanoparticles (ca. 200 nm) in pyridine resulted in α‐Bi2Mo3O12 nanorods (ca. 100 nm diameter). Further, sonication of the mixture of α‐Bi2Mo3O12 nanorods and Ag2O in pyridine yielded a nanocomposite of α‐Bi2Mo3O12 nanorods with deposited Ag nanoparticles and pyridine. Calcination of the nanocomposite at 450 °C afforded pyridine‐free α‐Bi2Mo3O12 nanorods with deposited Ag nanoparticles. A plausible mechanism is proposed. The crystallized Ag nanoparticles are uniformly deposited on the surface, with bismuth (Bi) as the preferential binding site, as revealed by time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS). Structural, compositional and morphological characterization of the products is carried out by using transmission electron microscopy, energy‐dispersive X‐ray analysis, scanning electron microscopy, thermogravimetric analysis, X‐ray diffraction, X‐ray photoelectron spectroscopy and TOF‐SIMS. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Social value related response latencies: Unobtrusive evidence for individual differences in information processing
Authors: Dehue Francine M. J. , McClintock Charles G. , Liebrand Wim B. G.
Published: May 2007

While much research concerning decision‐making in interdependency situations concentrates on the influence of social values or different preferences for certain distributions of outcomes for self and other (McClintock, 1978), little attention has been paid to the cognitive processes underlying the expression of these different social values. The present research focuses on the cognitive processes by examining the influence of the dominant social values on decision‐makers' response latencies (RLs) in interdependency situations. Using the Ring Measure of Social Values (Liebrand 1984), three experiments were conducted to assess these RLs. Experiment 1 examines the reliability of the social value construct and the RL effect. Experiments 2 and 3 investigate the generality of the RL effect across presentation of combinations of own and other's outcomes (all positive versus all negative). As predicted, RLs were shorter for individualists than for cooperators and competitors. Further, regardless of values, shorter RLs occurred across experiments when own outcomes are positive rather than negative. More important, the predicted interaction between social value and outcome distribution was observed, reflecting increasing RLs for cooperators as their joint outcomes decreased, longer RLs for individualists when own outcomes were negative rather than positive, and longer RLs for competitors when they were outcome disadvantaged rather than advantaged relative to other. These findings are consistent with the expectation that (I) the transformations associated with different social values require different cognitive processes, and (2) subsequent to the value transformations of outcomes, RLs increase when the utility of the transformed outcome distributions decreases.
Reactive effects of concurrent verbalization in person perception tasks
Authors: Mumma Gregory H. , Draguns Juris G. , Seibel Robert
Published: May 2007

The reactive effects of concurrent verbalization (CV) on task performance in impression formation research have not been investigated, despite increasing use of this process tracing method. Since many person perception tasks involve multiple trials, assessment of reactivity should focus on carry‐over and reactive‐practice effects, as well as changes in task performance concurrent with thinking aloud. An experimental method for assessing these three forms of reactivity was demonstrated in an information‐request impression formation task. Concurrent reactive effects were found for both continuous and intermittent CV. For the former, task processing was mildly slowed but altered in a manner suggestive of more efficient learning of, and memory for cues requested early in task performance. The substantial slowing of task processing during trial 1 intermittent CV largely disappeared by trial 2, indicating that subjects may require more practice for this method to be used effectively. The results for continuous CV are in line with recent findings which are inconsistent with certain predictions from the predominant theory of verbal protocol generation (Ericsson and Simon, 1984). Investigators using CV are urged to incorporate empirical checks for reactivity into their experimental designs.
Politics and participation: Some antecedents of young people's attitudes to the political system and political activity
Authors: Bynner John , Ashford Sheena
Published: May 2007

The antecedents of political disaffection and political activism have been extensively studied in adult populations, producing two models of political protest, the ‘dissatisfaction model’, suggesting that protest action is rooted in political disaffection, and the ‘resource model’ which bases interest in politics in a sense of political self‐efficacy. There has been a dearth of research extending this theorizing to young people of prevoting age. The present study presents the results of regression analysis applied to longitudinal data collected in a U.K. Programme of research and economic and political socialization, the ESRC 16‐19 Initiative. The analysis relates ‘lack of interest in politics’, ‘intention not to vote’ and ‘political activity’, to attitudes, personality characteristics, experience and circumstances measured earlier. It is concluded that political disaffection including lack of interest and intention not to vote, is strongly associated with a growing cynicism about politics rooted in poor educational performance and a working class family background. The connections with activism are negative but much weaker, suggesting the potential for protest activity across a wider spectrum of youth. This lends support to Marsh's (1990) view that given the right circumstances, protest action under both the ‘resource model’, and the ‘dissatisfaction model’, can apply.
Cognitive models of stereotype change (4): Motivational and cognitive influences
Authors: Johnston Lucy , Hewstone Miles , Pendry Louise , Frankish Clive
Published: May 2007

Three experiments investigating the effects of cognitive and motivational factors on stereotype change are reported. Trait ratings in all three experiments showed there to be greater stereotype‐change when stereotype‐inconsistent information was dispersed across many group members than when it was concentrated in only a few. A sorting task (Experiment 1) indicated that, in the concentrated conditions the stereotype disconfirmers were more strongly isolated from the rest of the group than in the dispersed conditions. Free recall protocols (Experiment 2) showed greater memory for the target exemplars when subjects anticipated interaction with a group member than when no interaction was anticipated. The questions subject chose to ask target group exemplars were also influenced by anticlpated future interaction. Subjects chose more stereotype‐inconsistent questions when interactian was anticipated than when no interaction was anticipated. Experment 3 showed the impact of stereotype‐inconsistent information to be greater when expectancies for the stereotyped group are weaker A cued‐recall task yielded evidence of spontaneous subtyping.

All these studies support the subtyping model, even in the presence of cognitive and motivational factors that might be expected to impede stereotype change.
Group size, controllability of group membership, and comparative dimension as determinants of intergroup discrimination
Authors: Lindeman Marjaana , Koskela Päivi
Published: May 2007

We expected that, when group members cannot control their group membership, majority members show ingroup favouritism on task‐relevant dimension, whereas minority members were expected to show ingroup favouritism on task‐irrelevant dimension (hypothesis I) In addition, it was expected that intergroup comparisons will change when group membership changes from uncontrollable to controllable. Based on Social Identity Theory, two alternative hypotheses were explored: Compared with uncontrollable settings, ingroup bias will decrease (2a) or increase (2b) in controllable settings. Ninety‐two subjects were divided into four groups (minority versus majority, controllable versus uncontrollable group membership), allegedly on the basis of their essay writing style. The results supported the first hypothesis. Hypothesis 2a received support among the majority members and hypothesis 2b among the minority members. The findings are discussed in terms of Social Identity Theory and the effect the perceived control of group membership and the dimension may have on intergroup comparisons.
Contrary effects of group cohesiveness in minority influence: Intergroup categorization of the source and levels of influence
Authors: Kozakaï Toshiaki , Moscovici Serge , Personnaz Bernard
Published: May 2007

The roles of group cohesiveness and intergroup categorization of the source in minority influence were studied in a 2 (high versus low cohesiveness) × 2 (ingroup versus outgroup source) × 3 (phases) factorial design. Six subjects forming a group were confronted with a confederate defending a minority position in a perceptual task. The results indicated a manifest influence effect (slide colour), accompanied by a latent polarization (afterimage) in the high cohesrveness/outgroup source condition, and a latent unfluence effect in the low cohesiveness/ingroup source condition.
On‐column capture of a specific protein separated by SDS‐CGE using an immunological reaction on magnetic beads
Authors: Kaneta Takashi , Takahashi Masanori , Imasaka Totaro
Published: May 2007

The on‐column capture of a specific protein using magnetic beads was applied to SDS‐CGE. In a preliminary study, an immunological reaction in the presence of SDS, using a batch method, was attempted. Carbonic anhydrase (CA), α‐lactalbumin (LA), and HSA were denatured by heating in the presence of SDS and 2‐mercaptoethanol, and then reacted with anti‐CA that had been immobilized on magnetic beads. Not only native CA, but also the denatured CA reacted with anti‐CA, even in the presence of SDS. Therefore, the on‐column capture of denatured CA separated by SDS‐CGE was attempted using a two‐point detection technique. A mixture of proteins, containing LA, CA, and HSA, were separated by SDS‐CGE according to their Mr. The CA was then specifically captured on anti‐CA‐immobilized magnetic beads, which were packed between two detection windows in the capillary column, during the electrophoresis. The results show that the technique leads to information similar to that obtained by Western blotting, i.e., a protein can be identified by its Mr and reaction with its antibody.
New directions for evaluation coverage of cultural issues and issues of significance to underrepresented groups
Authors: Madison Anna
Published: May 2007

This chapter examines coverage of cultural and underrepresented group issues in New Directions for Evaluation over the last twenty years.
Associations between head circumference, leg length and dementia in a Korean population
Authors: Kim Jae‐Min , Stewart Robert , Shin Il‐Seon , Kim Sung‐Wan , Yang Su‐Jin , Yoon Jin‐Sang
Published: May 2007

Background

Adult leg length is influenced by nutritional intake in childhood. Shorter leg length has been found to be associated with adverse health outcomes in late life, including dementia. Smaller head circumference has also been found to be associated with dementia. The independence of these two potential markers of risk for dementia has not been investigated.

Methods

Community residents aged 65 or over (n = 916) within a defined geographic area of South Korea were screened clinically for dementia and dementia subtypes. Data on anthropometric measures (head circumference and leg length), demographics (age, gender), apolipoprotein E, and early life environment (birth order, number of siblings, parental occupation, area of residence, education) were gathered. Reproductive history was also ascertained in women.

Results

Both smaller head circumference and shorter leg length were associated with increased age, rural residence in childhood and lower education. After adjustment for these factors, they were both independently associated with Alzheimer's disease but only in women.

Conclusions

Smaller head size and shorter limb length were associated with lower early‐life socio‐economic status. Both factors were apparently independent markers of risk for dementia which may indicate risk factors occurring in childhood affecting both brain and skeletal development. Associations were principally present in women. Reasons for gender differences in associations require clarification but, for this population and age group, may include preferential treatment of male children. Copyright © 2007 John Wiley & Sons, Ltd.
The Boolean Prime Ideal Theorem Plus Countable Choice Do Not Imply Dependent Choice
Authors: Howard Paul , Rubin Jean E.
Published: May 2007

Two Fraenkel‐Mostowski models are constructed in which the Boolean Prime Ideal Theorem is true. In both models, AC for countable sets is true, but AC for sets of cardinality 2 and the 2m = m principle are both false. The Principle of Dependent Choices is true in the first model, but false in the second.

Mathematics Subject Classification: 03E25, 03E35, 04A25.
Iterative Characterizations of Computable Unary Functions: A General Method
Authors: Mazzanti Stefano
Published: May 2007

Iterative characterizations of computable unary functions are useful patterns for the definition of programming languages based on iterative constructs. The features of such a characterization depend on the pairing producing it: this paper offers an infinite class of pairings involving very nice features.