bluuebunny/crossref_metadata_2025 huggingface dataset:
The Mental Hygiene Challenge – A Novel Public Mental Health Intervention
Authors: Tremblay Guillaume , Rodrigues Nicole C.
Published: March 2024

To support population mental health, mental hygiene propounds a universal public recommendation. March 2022 was the inaugural mental hygiene challenge where community members were invited to spend 10 minutes a day throughout the month engaged in mental hygiene activities. The outcomes suggest daily mental hygiene supports mental well-being.
Distinctiveness, Uniformity and Stability (DUS) Characterization in Twenty Five Landraces of Rice (Oryza sativa L.)
Authors: Prasanna G. S. Shai , Joshi J. L. , Muraleedharan Ajish
Published: March 2024

For the establishment of Distinctiveness, Uniformity and Stability (DUS) characterization, Twenty five landraces of rice (Oryza sativa L.), collected from different parts of Tamil Nadu, were characterized according to the DUS guidelines of the Plant Varieties Protection and Farmers’ Rights Authority, using thirty agro-morphological traits. Rice accessions were planted with three replications using the randomized block design (RBD) in 2021 at the Plant Breeding Farm, Department of Genetics and plant Breeding, Faculty of Agriculture, Annamalai University. Observations were recorded on various agro-morphological traits such as Leaf sheath, flag leaf, leaf blade, awns, panicle, ligure and clum characteristics. The results obtained revealed a wide range of variability for twenty five landraces, essential characters of the thirty DUS characters studied. The results of this study will be useful for restoration and conservation of beneficial genes. Contemporary research work will be advantageous for breeders to choose the right parent for crop improvement and the researchers for genetic diversity among landraces.
Selektiver Aufbau achtgliedriger Carbocyclen durch Ringschlussmetathese acyclischer Vorstufen
Authors: Michaut Antoine , Rodriguez Jean
Published: August 2006

Bei der Synthese von Cyclooctanoiden kam es in jüngster Zeit zu bemerkenswerten Fortschrittten dank der Entwicklung von hochspezifisch wirkenden Reagentien und der Entdeckung neuartiger Reaktionen. Trotzdem bleibt der direkte Aufbau achtgliedriger Carbocyclen aus acyclischen Vorstufen eine Herausforderung, da entropische und enthalpische Faktoren für die Bildung von Ringen dieser Größe nachteilig sind. Dieser Kurzaufsatz beschreibt die Anwendung der Ringschlussmetathese (RCM) als eine neue Methode zur Synthese von Cyclooctanoiden.
Zukunft gestalten mit Chemie: Was junge Chemiker in Forschung und Unternehmen erwartet
Authors: Hambrecht Jürgen
Published: August 2006

Über den Tellerrand blicken! Welche Qualifikationen sind für die Nachwuchschemiker von heute entscheidend und wie kann man sie vermitteln? Ein intensiverer Dialog zwischen den Hochschulen und der chemischen Industrie könnte die Innovationsbereitschaft fördern und so den Weg in eine erfolgreiche Zukunft weisen.
Selective Construction of Carbocyclic Eight‐Membered Rings by Ring‐Closing Metathesis of Acyclic Precursors
Authors: Michaut Antoine , Rodriguez Jean
Published: August 2006

Although the efficient preparation of cyclooctanoids has remained a long‐standing objective, a real breakthrough was possible only relatively recently with the development of more specific reagents and by the development of new reactions. The direct construction of carbocyclic eight‐membered rings from acyclic precursors is still a challenge, mainly because of unfavorable entropic and enthalpic factors that preclude ring formation. This Minireview describes the utilization of ring‐closing metathesis (RCM) as a new approach to synthesize cyclooctanoids.
Synthesis of New Thiazolylthiazolidinylbenzothiazoles and Thiazolylazetidinylbenzothiazoles as Potential Insecticidal, Antifungal, and Antibacterial Agents
Authors: Singh Tripti , Srivastava Virendra Kishore , Saxena Kuldip Kumar , Goel Suman Lata , Kumar Ashok
Published: August 2006

A series of 2‐{[2′‐(3′′‐chloro‐2′′‐oxo‐4′′‐substitutedaryl‐1′′‐azetidinyl)‐1′,3′‐thiazol‐4′‐yl] thio}benzothiazoles (4a–4e) and 2‐{[(2′‐(2′′‐substitutedaryl‐4′′‐thiazolidinon‐3′′‐yl)‐1′,3′‐thiazol‐4′‐yl]thio}benzothiazoles (5a–5e) have been synthesized from 2‐[(2′‐substitutedarylidenylimino‐1′,3′‐thiazol‐4′‐yl)thio]benzothiazoles (3a–3e). The structure of these compounds has been elucidated by elemental (C, H, N) and spectral (IR, 1H‐NMR, Mass) analysis. Furthermore, compounds 3a–3e, 4a–4e, and 5a–5e were screened for insecticidal activity against Periplaneta americana and antifungal, antibacterial activities in vitro against different strains of fungi and bacteria. Out of the fifteen compounds tested, compound 5b, 2‐{[2′‐(2′′‐p‐hydroxy‐m‐methoxyphenyl)‐4′′‐thiazolidinon‐3′′‐yl)‐1′,3′‐thiazol‐4′‐yl]thio}benzothiazole, was found to possess most prominent insecticidal activity.
The 136‐Atom Structure of ZrP2O7 and HfP2O7 from Powder Diffraction Data.
Authors: Stinton Graham W. , Hampson Matthew R. , Evans John S. O.
Published: August 2006

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 Germanides with an Ordered Variant of the Ce3Pt4Ge6 Type of Structure — The Compounds Ln3Pt4Ge6 (Ln: Pr—Dy).
Authors: Imre Anette , Hellmann Andrea , Mewis Albrecht
Published: August 2006

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 Stannides AuNiSn2 and AuCuSn2 — Bulk Synthesis and Superstructure Determination.
Authors: Lange Stefan , Nilges Tom , Hoffmann Rolf‐Dieter , Poettgen Rainer
Published: August 2006

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 Vapor Transport of Ternary Oxides in the Systems Ca/Mo/O and Sr/MO/O
Authors: Steiner Udo , Reichelt Werner
Published: August 2006

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.
Thermochemistry of Some Binary Alloys of Samarium with the Noble Metals (Cu, Ag, Au) by High Temperature Direct Synthesis Calorimetry
Authors: Meschel S. V. , Kleppa O. J.
Published: August 2006

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 Properties of LiFe0.9V0.1PO4.
Authors: Wen Yanxuan , Zeng Lingmin , Tong Zhangfa , Nong Liangqin , Wei Weixing
Published: August 2006

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.
Li6+2x[B10Se18]Sex (x ≈ 2), an Ion‐Conducting Double Salt.
Authors: Hammerschmidt A. , Doech M. , Puetz S. , Eckert H. , Krebs B.
Published: August 2006

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.
Benzotetramisole: A Remarkably Enantioselective Acyl Transfer Catalyst.
Authors: Birman Vladimir B. , Li Ximin
Published: August 2006

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′‐Binaphthyl‐2,2′‐diyl Phosphoroselenoyl Chloride as a Chiral Molecular Tool for the Preparation of Enantiomerically Pure Alcohols and Amines.
Authors: Murai Toshiaki , Matsuoka Daichi , Morishita Ken
Published: August 2006

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 Hydrosilylation of Simple Ketones Catalyzed by Rhodium Complexes of P‐Chiral Diphosphine Ligands Bearing tert‐Butylmethylphosphino Groups.
Authors: Imamoto Tsuneo , Itoh Takuma , Yamanoi Yoshinori , Narui Rintaro , Yoshida Kazuhiro
Published: August 2006

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.
Constructing Chiral Diazoacetoacetates by Enantioselective Catalytic Mukaiyama Aldol Reactions.
Authors: Kundu Kousik , Doyle Michael P.
Published: August 2006

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.
Anions from Dihydro Substituted Ethyl Benzoates and Quinoline. New Hydrogen Donors for Tin‐Free Radical Chemistry.
Authors: Bardagi Javier I. , Vaillard Santiago E. , Rossi Roberto A.
Published: August 2006

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.
Natural Kaolinitic Clay: A Remarkable Catalyst for Highly Regioselective Chlorination of Arenes with Cl2 or SO2Cl2.
Authors: Jayachandran B. , Phukan Prodeep , Daniel Thomas , Sudalai A.
Published: August 2006

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 Versatile and Efficient Ligand for Copper‐Catalyzed Formation of C—N, C—O, and P—C Bonds: Pyrrolidine‐2‐phosphonic Acid Phenyl Monoester.
Authors: Rao Honghua , Jin Ying , Fu Hua , Jiang Yuyang , Zhao Yufen
Published: August 2006

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.
Enantioselective Synthesis of O‐Methoxycarbonyl Cyanohydrins: Chiral Building Blocks Generated by Bifunctional Catalysis with BINOLAM‐AlCl.
Authors: Baeza Alejandro , Casas Jesus , Najera Carmen , Sansano Jose M. , Saa Jose M.
Published: August 2006

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 Enyne Cycloisomerizations and Hydroxycyclizations with Skeletal Rearrangement.
Authors: Faller J. W. , Fontaine Philip P.
Published: August 2006

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.
Efficient and Convenient Procedure for Protection of Hydroxyl Groups to the THP, THF and TMS Ethers and Oxidation of these Ethers to Their Aldehydes or Ketones in [BPy]FeCl4 as a Low Cost Room Temperature Ionic Liquid.
Authors: Khosropour Ahmad R. , Khodaei Mohammad M. , Ghaderi Sattar
Published: August 2006

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 Allylic‐Type Diindium Compounds with Electrophiles.
Authors: Hirashita Tsunehisa , Arai Shun , Mitsui Kazuma , Makino Hajime , Araki Shuki
Published: August 2006

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 Facile Access to N‐Sulfonylimidates and Their Synthetic Utility for the Transformation to Amidines and Amides.
Authors: Yoo Eun Jeong , Bae Imhyuck , Cho Seung Hwan , Han Hoon , Chang Sukbok
Published: August 2006

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.
Zirconium‐Catalyzed Asymmetric Carboalumination (ZACA Reaction) of 1,4‐Dienes.
Authors: Tan Ze , Liang Bo , Huo Shouquan , Shi Ji‐cheng , Negishi Ei‐ichi
Published: August 2006

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.
Cu(I)‐Catalyzed Regioselective anti‐Carbometallation of Secondary Terminal Propargylic Alcohols.
Authors: Lu Zhan , Ma Shengming
Published: August 2006

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.
Organocatalytic Oxy‐Michael Addition of Alcohols to α,β‐Unsaturated Aldehydes.
Authors: Kano Taichi , Tanaka Youhei , Maruoka Keiji
Published: August 2006

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 Synthesis of 2‐Bromo‐3‐hydroxy Esters by Reaction of Ketones with Ethyl Dibromoacetate Promoted by Samarium Diiodide.
Authors: Concellon Jose M. , Concellon Carmen , Diaz Pamela
Published: August 2006

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.
PmHNL Catalyzed Synthesis of (R)‐Cyanohydrins Derived from Aliphatic Aldehydes
Authors: Nanda Samik , Kato Yasuo , Asano Yasuhisa
Published: August 2006

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 Facile and Efficient Direct Aldol Addition of Simple Thioesters.
Authors: Yost Julianne M. , Zhou Guoqiang , Coltart Don M.
Published: August 2006

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.
Sequential Rearrangement of 1,2,4Z,7‐Tetraenes Involving [1,5]‐Hydrogen Migration and Electrocyclization: An Efficient Synthesis of Eight‐Membered Cyclic Compounds.
Authors: Ma Shengming , Gu Zhenhua
Published: August 2006

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.
Efficient Copper‐Free PdCl2(PCy3)2‐Catalyzed Sonogashira Coupling of Aryl Chlorides with Terminal Alkynes.
Authors: Yi Chenyi , Hua Ruimao
Published: August 2006

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.
Selectivity Guidelines and a Reductive Elimination‐Based Model for Predicting the Stereochemical Course of Conjugate Addition Reactions of Organocuprates to γ‐Alkoxy‐α,β‐enoates.
Authors: Kireev Artem S. , Manpadi Madhuri , Kornienko Alexander
Published: August 2006

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 Arylation Reactions by C—H Bond Activation with Aryl Tosylates.
Authors: Ackermann Lutz , Althammer Andreas , Born Robert
Published: August 2006

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.
ZrOCl2×8H2O: An Efficient Lewis Acid Catalyst for the One‐Pot Multicomponent Synthesis of β‐Acetamido Ketones.
Authors: Ghosh Rina , Maiti Swarupananda , Chakraborty Arijit , Chakraborty Santu , Mukherjee Alok K.
Published: August 2006

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 Copper‐Free Sonogashira Reaction Using a Pd/MgLa Mixed Oxide.
Authors: Cwik Agnieszka , Hell Zoltan , Figueras Francois
Published: August 2006

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 Epoxidation Catalyzed by Novel Azacrown Ether‐Type Chiral Quaternary Ammonium Salts under Phase‐Transfer Catalytic Conditions.
Authors: Hori Kazushige , Tamura Mina , Tani Keita , Nishiwaki Nagatoshi , Ariga Masahiro , Tohda Yasuo
Published: August 2006

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.
Enantioselective Intramolecular Hydroamination Catalyzed by Lanthanoid Ate Complexes Coordinated by N‐Substituted (R)‐1,1′‐Binaphthyl‐2,2′‐diamido Ligands.
Authors: Riegert David , Collin Jacqueline , Meddour Abdelkrim , Schulz Emmanuelle , Trifonov Alexander
Published: August 2006

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.
Redox Transformation of Adducts from Cycloaddition of Diazoacetic Ester to β‐Arylacryloyloxiranes.
Authors: Mikhalenok S. G. , Kuz'menok N. M. , Zvonok A. M.
Published: August 2006

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 Highly Regioselective Synthesis of 2‐Aryl‐6‐chlorobenzothiazoles Employing Microwave‐Promoted Suzuki—Miyaura Coupling Reaction.
Authors: Heo Yeon , Song Young Seob , Kim Bum Tae , Heo Jung‐Nyoung
Published: August 2006

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.
Three‐Component Coupling of Alkynes, Baylis—Hillman Adducts and Sodium Azide: A New Synthesis of Substituted Triazoles.
Authors: Chandrasekhar S. , Basu Debjit , Rambabu Ch.
Published: August 2006

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 New 3‐(Substituted Phenacyl)‐5‐ [3′‐(4H‐4‐oxo‐1‐benzopyran‐2‐yl)‐benzylidene]‐2,4‐thiazolidinediones and Their Antimicrobial Activity.
Authors: Tuncbilek Meral , Altanlar Nurten
Published: August 2006

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.
Technology of Preparing 8‐Hydroxy‐5‐nitroquinoline.
Authors: Isaev A. A. , Lomovskii I. I. , Korolev K. G. , Karimov R. K.
Published: August 2006

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‐R‐3,3‐Dialkyl‐6,7‐ethylenedioxy‐3,4‐dihydroisoquinolines.
Authors: Glushkov V. A. , Rozhkova Yu. S. , Vakhrin M. I. , Shklyaev Yu. V.
Published: August 2006

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 Biological Evaluation of New Pyrimidine Derivatives.
Authors: Fathalla O. A. , Radwan H. H. , Awad S. M. , Mohamed M. S.
Published: August 2006

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 Non‐Nucleosides: 7‐ and 1,3‐Substituents of New Pyrrolo[2,3‐d]pyrimidin‐4‐ones on Antiviral Activity.
Authors: Hilmy Khalid Mohammed Hassan
Published: August 2006

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.
Design and Synthesis of 7H‐Pyrrolo[2,3‐d]pyrimidines as Focal Adhesion Kinase Inhibitors. Part 2.
Authors: He Yun , et al. et al.
Published: August 2006

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 2‐Hydroxymorpholines and Aminodiols via a Three‐Component Boro‐Mannich Reaction.
Authors: Berree Fabienne , Debache AbdelMajid , Marsac Yohann , Collet Beatrice , Girard‐Le Bleiz Pascale , Carboni Bertrand
Published: August 2006

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 General and Efficient Synthesis of 3,6‐Diazabicyclo[3.2.1.]octanes.
Authors: Singh Rakesh K. , Jain Sanjay , Sinha Neelima , Mehta Anita , Naqvi Fehmida , Anand Nitya
Published: August 2006

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 One‐Pot Synthesis and Self‐Assembled Superstructure of Organic Salts of a 1,5‐Benzodiazepine Derivative.
Authors: Thakuria Harjyoti , Pramanik Avijit , Borah Ballav Moni , Das Gopal
Published: August 2006

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.
Direct Boronation of Allyl Alcohols with Diboronic Acid Using Palladium Pincer‐Complex Catalysis. A Remarkably Facile Allylic Displacement of the Hydroxy Group under Mild Reaction Conditions.
Authors: Olsson Vilhelm J. , Sebelius Sara , Selander Nicklas , Szabo Kalman J.
Published: August 2006

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.
Silylformylation — Fluoride‐Assisted Aryl Migration of Acetylenic Derivatives in a Versatile Approach to the Synthesis of Polyfunctionalized Compounds.
Authors: Aronica Laura Antonella , Raffa Patrizio , Valentini Giulia , Caporusso Anna Maria , Salvadori Piero
Published: August 2006

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.
[3,3]‐Rearrangements of Phosphonium Ylides.
Authors: Ferguson Marcelle L. , Senecal Todd D. , Groendyke Todd M. , Mapp Anna K.
Published: August 2006

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.
Orally Active Thrombin Inhibitors. Part 1. Optimization of the P1‐Moiety.
Authors: Mack Helmut , Baucke Dorit , Hornberger Wilfried , Lange Udo E. W. , Seitz Werner , Hoeffken H. Wolfgang
Published: August 2006

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.
γ‐Pyranone Derivatives and Other Constituents from Erigeron annuus.
Authors: Li Xin , Pan Jing , Gao Kun
Published: August 2006

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.
Total Synthesis of (.+‐.)‐Haouamine A.
Authors: Baran Phil S. , Burns Noah Z.
Published: August 2006

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.
Total Synthesis of Two Novel 5,6,7,8‐Tetrahydroindolizine Alkaloids, Polygonatines A (Ia) and B (Ib).
Authors: Dinsmore Andrew , Mandy Karen , Michael Joseph P.
Published: August 2006

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.
Total Synthesis of Enantiopure (+)‐γ‐Lycorane Using Highly Efficient Pd‐Catalyzed Asymmetric Allylic Alkylation.
Authors: Chapsal Bruno D. , Ojima Iwao
Published: August 2006

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 Biological Evaluation of B‐Ring Modified Colchicine and Isocolchicine Analogues.
Authors: Cifuentes Michael , Schilling Brett , Ravindra Rudravajhala , Winter Jacquelyn , Janik Mark E.
Published: August 2006

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.
Dimerization of (+)‐Myrmicarin 215B. A Potential Biomimetic Approach to Complex Myrmicarin Alkaloids.
Authors: Ondrus Alison E. , Movassaghi Mohammad
Published: August 2006

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 a Novel Pyrrolidine‐Based Peptide Nucleic Acid that Contains Tertiary Amines in the Main Chain and Its Internalization into Cells.
Authors: Kitamatsu Mizuki , Kashiwagi Tomoko , Matsuzaki Rino , Sisido Masahiko
Published: August 2006

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 a C(6) Nucleoside Analogue for the in vivo Imaging of the Gene Expression of Herpes Simplex Virus Type‐1 Thymidine Kinase (HSV1 TK).
Authors: Johayem Anass , Raic‐Malic Silvana , Lazzati Katia , Schubiger Pius A. , Scappozza Leonardo , Ametamey Simon A.
Published: August 2006

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‐Assisted Organic Synthesis of 3‐(D‐gluco‐Pentitol‐1‐yl)‐1H‐1,2,4‐triazole.
Authors: El Ashry E. S. H. , Awad L. F. , Hamid H. M. Abdel , Atta A. I.
Published: August 2006

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 Industrial Process for Selective Synthesis of 7‐Methyl Guanosine 5′‐Diphosphate: Versatile Synthon for Synthesis of mRNA Cap Analogues.
Authors: Kore Anilkumar R. , Parmar Gaurang
Published: August 2006

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 Antiviral Evaluation of Novel Open‐Chain Analogues of Neplanocin A.
Authors: Hong Joon Hee , Kim So‐Young , Oh Chang‐Hyun , Yoo Kyung Ho , Cho Jung‐Hyuck
Published: August 2006

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 Flavanone from the Wood of Amorpha fruticosa L.
Authors: Lee Hyun‐Jung , Lee Oh‐Kyu , Kwon Yeong‐Han , Choi Don‐Ha , Kang Ha‐Young , Lee Hyeon‐Yong , Paik Ki‐Hyon , Lee Hak‐Ju
Published: August 2006

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 Synthesis of (+)‐Saxitoxin.
Authors: Fleming James J. , Du Bois J.
Published: August 2006

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 Single‐Step Synthesis of Xyridins A and B, Metabolites from Xyris indica.
Authors: Saeed Aamer
Published: August 2006

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.
Investigation on the Distribution of Rare Earth Ions in Strontium Aluminate Phosphors.
Authors: Luo Xixian , Cao Wanghe , Xiao Zhiguo
Published: August 2006

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‐Quality Sodium Rare‐Earth Fluoride Nanocrystals: Controlled Synthesis and Optical Properties.
Authors: Mai Hao‐Xin , Zhang Ya‐Wen , Si Rui , Yan Zheng‐Guang , Sun Ling‐dong , You Li‐Ping , Yan Chun‐Hua
Published: August 2006

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 Reactions on Crystallites: Imaging and in situ Chemical Probing at the Nanometer Scale
Authors: Visart de Bocarme Thierry
Published: August 2006

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.
Modern Pummerer‐Type Reactions
Authors: Feldman Ken S.
Published: August 2006

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.
Catalysis Using Supercritical Solvents. SCFs and Liquid Polymers
Authors: Jessop Philip G.
Published: August 2006

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.
Incorporation of Selenocysteine into Proteins Using Peptide Ligation
Authors: Hondal Robert J.
Published: August 2006

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.
Solid Acid Catalyzed Esterification of Amino Acids and Other Bio‐Based Acids
Authors: Asthana N. S. , Zhang Z. , Miller Dennis J.
Published: August 2006

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.
Phosphorus Analogues of Guanidine
Authors: Gilchrist T. L.
Published: August 2006

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.
Ionic Liquids
Authors: Jodry Jonathan J. , Mikami Koichi
Published: August 2006

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.
Zirconocene‐Mediated Deoxygenative Ring Contractions of Vinyl‐Substituted Carbohydrates: An Expedient Route to Enantiomerically Pure, Densely Functionalized 4‐to‐8‐Membered Carbocycles
Authors: Paquette Leo A.
Published: August 2006

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.
Substituent Electronic Effects in Chiral Ligands for Asymmetric Catalysis
Authors: Flanagan Susan P. , Guiry Patrick J.
Published: August 2006

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 Ferrocenyl Deoxyribonucleic Acids (DNAs) and Their Application to Electrochemical Gene Detection
Authors: Mukumoto Kosuke , Takenaka Shigeori
Published: August 2006

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.
How to Control NO Production in Cells: Nω,Nω‐Dimethyl‐L‐arginine Dimethylaminohydrolase as a Novel Drug Target
Authors: Knipp Markus
Published: August 2006

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.
FlexNovo: Structure‐Based Searching in Large Fragment Spaces
Authors: Degen Jörg , Rarey Matthias
Published: August 2006

We present a new molecular design program, FlexNovo, for structure‐based searching within large fragment spaces following a sequential growth strategy. The fragment spaces consist of several thousands of chemical fragments and a corresponding set of rules that specify how the fragments can be connected. FlexNovo is based on the FlexX molecular docking software and makes use of its incremental construction algorithm and the underlying chemical models. Interaction energies are calculated by using standard scoring functions. Several placement geometry, physicochemical property (drug‐likeness), and diversity filter criteria are directly integrated into the “build‐up” process. FlexNovo has been used to design potential inhibitors for four targets of pharmaceutical interest (dihydrofolate reductase, cyclin‐dependant kinase 2, cyclooxygenase‐2, and the estrogen receptor). We have carried out calculations using different diversity parameters for each of these targets and generated solution sets containing up to 50 molecules. The compounds obtained show that FlexNovo is able to generate a diverse set of reasonable molecules with drug‐like properties. The results, including an automated similarity analysis with the Feature Tree program, indicate that FlexNovo often reproduces structural motifs as well as the corresponding binding modes seen in known active structures.
Phosphopeptide Ligands of the SHP‐1 N‐SH2 Domain: Effects on Binding and Stimulation of Phosphatase Activity
Authors: Hampel Kornelia , Kaufhold Ina , Zacharias Martin , Böhmer Frank D. , Imhof Diana
Published: August 2006

Src homology 2 (SH2)‐domain‐mediated interactions with phosphotyrosine (pY)‐containing ligands are critical for the regulation of SHP‐1 phosphatase activity. Peptides based on a binding site from receptor tyrosine kinase Ros (EGLN‐pY2267‐MVL, 1) have recently been shown to bind to the SHP‐1 N‐terminal SH2 domain (N‐SH2) with considerably high affinity. In addition, two peptides cyclized between positions −1 and +2 relative to pY (EGLc[K(COCH2NH)pYMX]L‐NH2, 2: X=D, 3: X=E) bound to the N‐SH2 domain, but did not activate the enzyme and even partially prevented stimulation of SHP‐1 activity by the physiological ligand 1. These findings prompted us to further examine the determinants for optimal binding to the N‐SH2 domain and for the stimulation and inhibition of SHP‐1 activity. Herein we demonstrate that combining the preferred residues in both pY+1 (such as Phe or norleucine, Nle) and pY+3 (such as homophenylalanine, Hfe) leads to highly efficient activating ligands of SHP‐1. Particularly in the context of the cyclic peptides 7 (EGLc[K(COCH2NH)pYFD]Hfe‐NH2) and 8 (EGLc[K(COCH2NH)pYNleD]HfeL‐NH2), the incorporation of these residues resulted in high‐affinity ligands with a significantly increased ability to stimulate SHP‐1 activity. We suggest that different binding modes (according to consensus sequences class I and II) are responsible for obtaining either activating (7 and 8) or nonactivating (2 and 3) ligands. Peptides such as 7 and 8 that bind in the extended fashion of the type II mode activate the phosphatase through complete filling of the cavity for pY+3. In contrast, peptides such as 2 and 3 that bind in the class I mode do not activate the enzyme because they allow more conformational space at pY+3. Therefore, their binding does not force the conformational transition necessary to trigger the dissociation of N‐SH2 and the catalytic domain.
The evolutionary psychology of left and right: Costs and benefits of lateralization
Authors: Vallortigara Giorgio
Published: August 2006

Why do the left and right sides of the vertebrate brain play different functions? Having a lateralized brain, in which each hemisphere carries out different functions, is ubiquitous among vertebrates. The different specialization of the left and right side of the brain may increase brain efficiency—and some evidence for that is reported here. However, lateral biases due to brain lateralization (such as preferences in the use of a limb or, in animals with laterally placed eyes, of a visual hemifield) usually occur at the population level, with most individuals showing similar direction of bias. Individual brain efficiency does not require the alignment of lateralization in the population. Why then are not left‐ and right‐type individuals equally common? Not only humans, but most vertebrates show a similar pattern. For instance, in the paper I report evidence that most toads, chickens, and fish react faster when a predator approaches from the left. I argue that invoking individual brain efficiency (lateralization may increase fitness), evolutionary chance or direct genetic mechanisms cannot explain this widespread pattern. Instead, using concepts from mathematical theory of games, I show that alignment of lateralization at the population level may arise as an “evolutionarily stable strategy” when individually asymmetrical organisms must coordinate their behavior with that of other asymmetrical organisms. Thus, the population structure of lateralization may result from genes specifying the direction of asymmetries which have been selected under “social” pressures. © 2006 Wiley Periodicals, Inc. Dev Psychobiol 48: 418–427, 2006.
Cholesterol metabolism during cell growth: Which role for the plasma membrane?
Authors: Batetta Barbara , Sanna Francesca
Published: August 2006

Parenchyma proliferation is accompanied by a peculiar modification of the cholesterol metabolism involving both the growing tissue and the plasma compartment. The increase of cholesterol synthesis and uptake has been largely described in the literature and mainly ascribed to the increased requirement of cholesterol for new membrane biogenesis. The dramatic reduction of cholesterol efflux, which probably contributes to the increase of cholesterol esterification and accumulation, has also been largely described, although, further to acting as a prompt pool for membrane biogenesis requirements, its significance and possible influence on cholesterol homeostasis during growth has been almost completely neglected. In this short review, the most widely known modifications and new insights into the cholesterol metabolism during the growth of normal and tumoral cells will be discussed. Particular attention will be paid to the most widely known modifications of cholesterol storage and efflux. The possible implication of proteins in membrane cholesterol translocation causing cholesterol to be directed towards the ER for esterification by ACAT rather than being released by the appropriate external acceptor, i.e. HDL, during proliferation will be discussed.
A new species of Audouinella BORY (Audouinella patelii sp. nova) (Arcrochaetiaceae, Rhodophyta) from Kerala, India
Authors: Shaji C.
Published: August 2006

A new bluish species of Audouinella – A. patelii sp. nova – is reported and described from Kerala, India. It differs from its congeners in its over all dimensions, morphology of prostrate system, presence of hairs and rhizoids. It reproduces only by monospores formed singly in unilateral, solitary, sessile, spherical sporangia. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Variation in fruit and seed morphology, germination and seedling behaviour of some taxa of Ipomoea L. (Convolvulaceae)
Authors: Ogunwenmo K. O.
Published: August 2006

Fruit and seed morphology, germination and seedling behaviour of 13 taxa of Ipomoea were investigated. Seed and fruit characters were used to construct identification key to the taxa of Ipomoea studied. Mechanical scarification increased seed germination from 35% to 100%. Seeds of Ipomoea pileata subsp. uniflora, I. cairica var. cairica, I. pes‐caprae subsp. brasiliensis and I. carnea subsp. fistulosa observed a period of dormancy ranging from three to over six months in soil. The first foliage leaf appeared between the fith and twelth day of cotyledon emergence from the soil. Growth rate (measured by the rate of leaf productuion over time) was highest in I. quamoclit and least in I. asarifolia . The time and leaf stage at which stem became decumbent varied among the taxa. The truncate leaf bases of first and second leaves of I. ugborea and I. obscura were probably more primitive than the common subsequent and adult cordate leaves of most Ipomoea taxa and suggest common ancestry of the two species. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Zygospore formation of four rare desmids from Kerala, India
Authors: Panikkar M. V. N. , Krishnan Sreeja
Published: August 2006

Zygospore formation of four rare taxa of desmids are described. The species include Cylindrocystis brebissonii var. minor West & G.S.West, Penium spinospermum Joshua, Actinotaenium obcuneatum (W.West) Teiling and A. inconspicuum (West & G.S.West) Teiling collected from different places of Wyanad District of Kerala, India. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Some new taxa of Astragalus L. (Leguminosae) from China and Nepal
Authors: Xu L. R. , Podlech D.
Published: August 2006

During the work on the genus Astragalus for the Flora of China, some more new species could be found among the unnamed material from the herbaria of Beijing and Kunming. Furthermore a new section had to be described. They are described here: Sect. Poliothrix: A. blandulus, A. hysophilus, A. jumlaensis, A. montivagus, A. oreocharis, A. praeteritus, A. yutaniensis; Sect. Pseudosesbanella sect. nova: A. notabilis. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
New records of Clonostachys epichloë, a mycoparasitic fungus on the grass‐parasitic ascomycete Epichloë typhina for Europe
Authors: Kirschner R.
Published: August 2006

A mycoparasitic hyphomycete on the grass‐parasitic ascomycete Epichloë typhina from Germany was identified as Clonostachys epichloë Schroers with morphological and molecular methods. A delicately balanced mutualism is known for the host fungus E. typhina and flies of the genus Botanophila . Studies of type material of Sphacelia typhina subsp. aeruginosa Sacc. collected in France in the 19th century revealed the synonymy of this taxon with Clonostachys epichloë, hitherto reported only for America and Asia under this name. Since C. epichloë apparently is highly host‐specific and more common in Europe than previously known, it might benefit from this mutualism and reduce the development of E. typhina as well as the associated Botanophila flies. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Structure and development of the branching system in Melica sarmentosa NEES (Poaceae)
Authors: Perreta M. G. , Vegetti A. C.
Published: August 2006

The branching system of cultivated and wild populations of the climbing grass Melica sarmentosa Nees is described on the basis of cultivated and field plant observation. Two types of axes are recognized, namely, ‘basal climbing axes’ and ‘distal climbing axes’. These axes differ in position and morphology and show a particular distribution of branching and branch repression zones associated with their climbing habit. The branching system of the plant can be summerized by the following traits: (1) limited production of innovation axes (basal climbing axes); (2) vigorous development of such axes, which produce a large number of internodes as well as profuse distal branching (distal climbing axes, enrichment shoots), and consequently, (3) remarkable ability of the distal region of the plant for environmental exploration. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
On the relationship between hydrographs and chemographs
Authors: Kurtenbach Andreas , Möller Steffen , Krein Andreas , Symader Wolfhard
Published: August 2006

The spatial representativeness of gauging stations was investigated in two low‐mountainous river basins near the city of Trier, southwest Germany. Longitudinal profiles during low and high flow conditions were sampled in order to identify sources of solutes and to characterize the alteration of flood wave properties during its travel downstream. Numerous hydrographs and chemographs of natural flood events were analysed in detail. Additionally, artificial flood events were investigated to study in‐channel transport processes.

During dry weather conditions the gauging station was only representative for a short river segment upstream, owing to discharge and solute concentrations of sources contiguous to the measurement site. During artificial flood events the kinematic wave velocity was considerably faster than the movement of water body and solutes, refuting the idea of a simple mixing process of individual runoff components. Depending on hydrological boundary conditions, the wave at a specific gauge could be entirely composed of old in‐channel water, which notably reduces the spatial representativeness of a sampling site. Natural flood events were characterized by a superimposition of local overland flow, riparian water and the kinematic wave process comprising the downstream conveyance of solutes. Summer floods in particular were marked by a chronological occurrence of distinct individual runoff components originating only from a few contributing areas adjacent to the stream and gauge. Thus, the representativeness of a gauge for processes in the whole basin depends on the distance of the nearest significant source to the station. The consequence of our study is that the assumptions of mixing models are not satisfied in river basins larger than 3 km2. Copyright © 2006 John Wiley & Sons, Ltd.
Predicting rainfall intensity using a genetic algorithm approach
Authors: Karahan Halil , Ceylan Halim , Tamer Ayvaz M.
Published: August 2006

A genetic algorithm rainfall intensity (GARI) model has been developed and used to predict the intensities for given return period. It is a one‐step solution procedure that may not require any mathematical transformation. The problem formulation is given and the genetic algorithm solution of the problem is presented. The results show that the proposed GARI model can be used to solve the rainfall intensity–duration–frequency relations with lowest mean‐squared error between measured and predicted intensities. Predicted intensities are in good agreement between measured and predicted values for given return periods. Copyright © 2006 John Wiley & Sons, Ltd.