bluuebunny/crossref_metadata_2025 huggingface dataset:
Chirality Induction and Protonation‐Induced Molecular Motions in Helical Molecular Strands
Authors: Kolomiets Elena , Berl Volker , Lehn Jean‐Marie
Published: April 2007

The long oligopyridinedicarboxamide strand9, containing 15 heterocyclic rings has been synthesized and its helical structure determined by X‐ray crystallography. It was shown that the shorter analogue6displays induced circular dichroism and amplification of induced chirality upon dissolution in an optically active solvent, diethyl‐L‐tartrate. A novel class of helical foldamers was prepared, strands14–16, based on two oligopyridine carboxamide segments linked through aL‐tartaric acid derived spacer. These tartro strands display internal chirality induction as well as chirality amplification. NMR spectroscopy (on8and9) and circular dichroism (on16) studies show that the oligopyridine carboxamide strands undergo reversible unfolding/folding upon protonation. The protonation‐induced unfolding has been confirmed by X‐ray crystallographic determination of the molecular structure of the extended protonated heptameric form8+. The molecular‐scale mechano‐chemical motions of the protonation‐induced structural switching consist of a change of the length of the molecule, from 6 Å (6, coiled form) to 29 Å (8+, uncoiled form) for the heptamer and from 12.5 Å (9, coiled form, X‐ray structure) to 57 Å (9+, uncoiled form, from modeling) for the pentadecamer. Similar unfolding/folding motional processes take place in theL‐tartro strands15and16upon protonation/deprotonation, with loss of helicity‐induced circular dichroism on unfolding as shown for the protonated form16+.
Synthesis of Molecular Motors Incorporating para‐Phenylene‐Conjugated or Bicyclo[2.2.2]octane‐Insulated Electroactive Groups
Authors: Vives Guillaume , Gonzalez Alexandre , Jaud Joël , Launay Jean‐Pierre , Rapenne Gwénaël
Published: April 2007

The insulating role of the bicyclo[2.2.2]octane fragment has been theoretically evaluated by comparing the electronic coupling parameter (Vab) in 1,4‐bis(ferrocenyl)benzene (1) and 1,4‐bis(ferrocenyl)bicyclo[2.2.2]octane (2). The geometries were optimized by DFT and an extended Hückel calculation was performed to evaluate Vab by the dimer splitting method. The calculations showed a 12‐fold decrease of the electronic coupling from 60 meV for 1 to 5 meV for 2. The second part describes the synthesis of two potential molecular motors with one incorporating the insulating bicyclo[2.2.2]octane fragment. These molecules are based on a ruthenium complex bearing a tripodal stator functionalized to be anchored onto surfaces. The ferrocenyl electroactive groups and the cyclopentadienyl (Cp) rotor are connected through a p‐phenylene spacer (5) or through a spacer incorporating an insulating bicyclo[2.2.2]octane moiety (6).
Towards a 32‐Electron Principle: Pu@Pb12 and Related Systems.
Authors: Dognon Jean‐Pierre , Clavaguera Carine , Pyykkoe Pekka
Published: April 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.
Approaching Actinide(+III) Hydration from First Principles
Authors: Wiebke J. , Moritz A. , Cao X. , Dolg M.
Published: April 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.
Unexpected Stability of Al4H6: A Borane Analogue?
Authors: Bowen K. H. , et al. et al.
Published: April 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.
Thermodynamic Stability of Boron: The Role of Defects and Zero Point Motion
Authors: van Setten Michiel J. , Uijttewaal Matthe A. , de Wijs Gilles A. , de Groot Robert A.
Published: April 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 Arsenides with ThCr2Si2‐Type or Related Structures: The Compounds ARh2As2 (A: Eu, Sr, Ba) and BaZn2As2.
Authors: Hellmann Andrea , Loehken Anke , Wurth Andreas , Mewis Albrecht
Published: April 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.
Structural Investigations and Thermal Behavior of Mercury(II) Sulfito Complexes.
Authors: Weil Matthias , Breitinger Dietrich K. , Liehr Guenther , Zuerbig Juergen
Published: April 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, Characterization, and Electrochemical Properties of Ag2V4O11 and AgVO3 1‐D Nano/Microstructures.
Authors: Zhang Shaoyan , Li Weiyang , Li Chunsheng , Chen Jun
Published: April 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, Ionic Conduction and Dielectric Relaxation in a Novel Fast Ion Conductor, Na2Cd(SO4)2.
Authors: Swain Diptikanta , Row Tayur N. Guru
Published: April 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.
Magnetic and Electrical Properties of the Intermetallic Compounds Ln2Au2Sn (Ln: Y, Dy—Tm, Lu) and Ln2Au2In (Ln: Ho, Lu).
Authors: Poettgen Rainer , Kremer Reinhard K. , Rayaprol Sudhindra , Heying Birgit , Hoffmann Rolf‐Dieter
Published: April 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 Isothermal Sections of the Phase Diagram of the Nd—Mg—Ni Ternary System at 1123 and 673 K (Ni‐Rich Part).
Authors: Zhou Huaiying , Zhang Songli , Yao Qingrong , Li Wenjia
Published: April 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 Mechanism for Nonstoichiometry in the Lithium Amide/Lithium Imide Hydrogen Storage Reaction.
Authors: David William I. F. , Jones Martin O. , Gregory Duncan H. , Jewell Catherine M. , Johnson Simon R. , Walton Allan , Edwards Peter P.
Published: April 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.
Dysprosium Carbide Iodides Dy10(C2)2I18, Dy4(C2)I6, and Dy12(C2)3I17.
Authors: Mattausch Hansjuergen , Hoch Constantin , Simon Arndt
Published: April 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.
Hydrothermal Synthesis of a New Vanadium Tellurate(VI) with a Novel Chain Structure: (NH4)4{(VO2)2 [Te2O8(OH)2]}×2H2O.
Authors: Kim Hyejin , Cho Yoonsuk , Yun Hoseop , Do Junghwan
Published: April 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 Selective Diels—Alder Reactions of Directly Connected Enyne Dienophiles.
Authors: Dai Mingji , Sarlah David , Yu Maolin , Danishefsky Samuel J. , Jones Gavin O. , Houk K. N.
Published: April 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 Nanoplatinum Catalyst for Aerobic Oxidation of Alcohols in Water.
Authors: Yamada Yoichi M. A. , Arakawa Takayasu , Hocke Heiko , Uozumi Yasuhiro
Published: April 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.
Efficient Epoxidation of α,β‐Enones with Polyvinylpyrrolidone‐Supported Hydrogen Peroxide (PVP‐H2O2).
Authors: Pourali Ali Reza , Ghanei Mersieh
Published: April 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.
Barium Hydride Promoted Homocoupling and Cross‐Coupling Reactions of Enones: An Alternative Entry to Diels—Alder Adducts.
Authors: Yanagisawa Akira , Shinohara Ai , Takahashi Hiroshi , Arai Takayoshi
Published: April 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.
Alkoxycarbonylation of Aryl Iodides Using Gaseous Carbon Monoxide and Pre‐Pressurized Reaction Vessels in Conjunction with Microwave Heating.
Authors: Kormos Chad M. , Leadbeater Nicholas E.
Published: April 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.
2,4,6‐Trichloro‐1,3,5‐triazine‐Catalyzed Chemoselective Transthioacetalization of Aldehyde Acetals and Oxathioacetals.
Authors: Bandgar Babasaheb P. , Joshi Neeta S. , Bettigeri Sampada V.
Published: April 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.
Cerium Ammonium Nitrate (CAN) for Mild and Efficient Reagent to Remove Hydroxyethyl Units from 2‐Hydroxyethyl Ethers and 2‐Hydroxyethyl Amines.
Authors: Fujioka Hiromichi , Hirose Hdieki , Ohba Yusuke , Murai Kenichi , Nakahara Kenji , Kita Yasuyuki
Published: April 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 Facile Synthesis of Ethyl 2‐Acetamido‐4‐methylenehex‐5‐enoate, a Versatile Diels—Alder Synthon for the Parallel Synthesis of Novel α‐Amino Acid Derivatives.
Authors: Chen Rui , Lee Victor , Adlington Robert M. , Baldwin Jack E.
Published: April 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.
NaOH‐Promoted Thiolysis of Oxiranes Using 2‐[Bis(alkylthio)methylene]‐3‐oxo‐N‐o‐tolylbutanamides as Odorless Thiol Equivalents.
Authors: Yu Haifeng , Dong Dewen , Ouyang Yan , Wang Yan , Liu Qun
Published: April 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.
N,N′‐Dichloro Bis(2,4,6‐trichlorophenyl)urea (CC‐2): An Efficient Reagent for the Synthesis of α‐Chloro‐nitroso Compounds.
Authors: Gupta A. K. , Acharya J. , Pardasani D. , Dubey D. K.
Published: April 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 C3‐Symmetric Tripodal β‐Hydroxy Amide Ligands and Their Ti(IV) Complex‐Catalyzed Asymmetric Addition of Diethylzinc to Aldehydes.
Authors: Fang Tao , Xu Jiaxi , Du Da‐Ming
Published: April 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.
Enantioselective Desymmetrization of meso Epoxides with Anilines Catalyzed by a Niobium Complex of a Chiral Multidentate Binol Derivative.
Authors: Arai Kenzo , Salter Matthew M. , Yamashita Yasuhiro , Kobayashi Shu
Published: April 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.
Amine‐Catalyzed Michael Reactions of an Aminoaldehyde Derivative to Nitroolefins.
Authors: Albertshofer Klaus , Thayumanavan Rajeswari , Utsumi Naoto , Tanaka Fujie , Barbas Carlos F. III
Published: April 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.
Aluminum Iodide Promoted Highly (Z)‐Stereoselective Synthesis of β‐Iodo Morita—Baylis—Hillman Esters with Ketones as Aldol Acceptors.
Authors: Lee Sung Il , Hwang Geum‐Sook , Ryu Do Hyun
Published: April 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.
Mild Electrophilic Trifluoromethylation of Carbon‐ and Sulfur‐Centered Nucleophiles by a Hypervalent Iodine(III)—CF3 Reagent.
Authors: Kieltsch Iris , Eisenberger Patrick , Togni Antonio
Published: April 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.
L‐Proline—H2O2: A New Chemoselective Approach for Oxidation of Sulfides to Sulfoxides.
Authors: Reddy K. Rajender , Rajasekhar C. V. , Ravindra A.
Published: April 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.
Alkenyl Alane—Pyridine Complexes in a New Synthesis of Aryl Alk‐1‐enyl Sulfoxides.
Authors: Signore G. , Calderisi M. , Malanga C. , Menicagli R.
Published: April 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.
Surfactant‐Type Broensted Acid Catalyzed Dehydrative Nucleophilic Substitutions of Alcohols in Water.
Authors: Shirakawa Seiji , Kobayashi Shu
Published: April 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.
Two Palladium‐Catalyzed Domino Reactions from One Set of Substrates/Reagents: Efficient Synthesis of Substituted Indenes and cis‐Stilbenoid Hydrocarbons from the Same Internal Alkynes and Hindered Grignard Reagents.
Authors: Dong Cheng‐Guo , Yeung Pik , Hu Qiao‐Sheng
Published: April 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.
Metal‐Mediated Diastereoselective Allylation Reaction of Chiral α,β‐Epoxy Aldehyde. Part 1.
Authors: Park Su Ho , Yoon Hee Kyoon , Lee Hyo Won
Published: April 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.
Organocatalytic Enantioselective Aziridination of α,β‐Unsaturated Aldehydes.
Authors: Vesely Jan , Ibrahem Ismail , Zhao Gui‐Ling , Rios Ramon , Cordova Armando
Published: April 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.
Copper‐Catalyzed Rearrangement of Vinyl Oxiranes.
Authors: Batory Lindsay A. , McInnis Christine E. , Njardarson Jon T.
Published: April 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.
Intermolecular Mn(OAc)3‐Mediated Oxidative Free‐Radical Reaction of Dimethyl Malonate or Ethyl Cyanoacetate with Allenes: An Efficient Synthesis of Furan‐2(5H)‐ones or Dimethyl 2‐(2‐Oxoethylidene)malonates.
Authors: Wu Zhimeng , Huang Xian
Published: April 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.
Tandem Claisen Condensation/Transesterification Between Arylacetate Enolates and Arylmethylene‐Substituted 2,2‐Dimethyl‐1,3‐dioxolan‐4‐ones: An Improved Synthesis of (Z)‐Configured Pulvinones.
Authors: Kaczybura Natasza , Brueckner Reinhard
Published: April 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 Cations Binding Properties of a New C,N‐Bipyrazolic Ligand.
Authors: Attayibat Ahmed , Radi Smaail , Ramdani Abdelkrim , Lekchiri Yahya , Hacht Brahim , Bacquet Maryse , Willai Stephanie , Morcellet Michel
Published: April 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 N‐Vinyl Group as a Protection Group of the Preparation of 3(5)‐Substituted Pyrazoles via Bromine—Lithium Exchange.
Authors: Iddon Brian , Toender Janne Ejrnaes , Hosseini Masood , Begtrup Mikael
Published: April 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.
Rapid Synthesis of New 5‐Nitroimidazoles as Potential Antibacterial Drugs via VNS Procedure.
Authors: Crozet Maxime D. , Remusat Vincent , Curti Christophe , Vanelle Patrice
Published: April 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.
Ionic Liquid Promoted One‐Pot Three‐Component Reaction: Synthesis of Annulated Imidazo[1,2‐a]azines Using Trimethylsilylcyanide.
Authors: Shaabani Ahmad , Maleki Ali
Published: April 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 Sakurai—Prins—Ritter Sequence for the Three‐Component Diastereoselective Synthesis of 4‐Amino Tetrahydropyrans.
Authors: Epstein Oleg L. , Rovis Tomislav
Published: April 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.
Short Synthesis of 3‐Prenylcoumarins by an Unusual Prenylation.
Authors: Ramachandra Marellapudi S. , Subbaraju Gottumukkala V.
Published: April 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 Antibacterial Activity of New 7‐Piperazinylquinolones Containing a Functionalized 2‐(Furan‐3‐yl)ethyl Moiety.
Authors: Foroumadi Alireza , Mohammadhosseini Negar , Emami Saeed , Letafat Bahram , Faramarzi Mohammad Ali , Samadi Nasrin , Shafiee Abbas
Published: April 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 2‐Hydroxy‐1,2,3,4‐tetrahydroquinoline Derivatives by a Cyclocondensation Reaction.
Authors: Cremonesi Giuseppe , Dalla Croce Piero , Fontana Francesco , La Rosa Concetta
Published: April 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.
Enantioselective Synthesis of (S)‐3‐Hydroxy‐3‐phenyl‐3,4‐dihydroquinolin‐2(1H)‐one Ring System.
Authors: Blay Gonzalo , Cardona Luz , Torres Lucas , Pedro Jose R.
Published: April 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 Three‐Component Tethering: Synthesis of 1‐Alkoxy‐1H‐furo[3,4‐c]pyridine‐3‐ones.
Authors: Cho Chan Sik , Shim Sang Chul
Published: April 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 Synthesis of Three New Heterocycles: The Pyrido[4,3 or 3,4 or 2,3‐c]‐1,5‐naphthyridines.
Authors: Cailly Thomas , Fabis Frederic , Legay Remi , Oulyadi Hassan , Rault Sylvain
Published: April 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 6,6‐Bicyclic Malonamides: A New Class of Conformationally Preorganized Ligands for f‐Block Ion Binding.
Authors: Parks Bevin W. , Gilbertson Robert D. , Domaille Dylan W. , Hutchison James E.
Published: April 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.
Quinazolin‐4(3H)‐ones of 2‐[(2′,6′‐Dichlorophenyl)amino]phenyl Acetic Acid with Substituted Aryl Acetamide and Their Microbial Studies.
Authors: Patel N. B. , Chaudhari R. C.
Published: April 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 a Particular Class of Silicon‐Tethered Dinucleophiles: Several Propargyloxydimethylsilyl Enol Ethers.
Authors: Fataftah Zacharia A. , Sawalhah M'ather , Rawashdeh Abdel M.
Published: April 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.
Three New Serratane Triterpenoids from Phlegmariurus squarrosus.
Authors: Yan Jian , Cheng Bao‐Hui , Zhang Xian‐Min , Qiu Ming‐Hua
Published: April 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.
Feroniellides A and B, Apotirucallane Triterpenes with Novel Cyclic Acetals from Feroniella lucida.
Authors: Phuwapraisirisan Preecha , Surapinit Serm , Siripong Pongpun , Tip‐pyang Santi , Kokpol Udom
Published: April 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 Way to Synthesize Nα‐Boc‐Nβ‐Cbz‐2,3‐Diaminopropionic Acid Derivatives via 5‐Oxazolidinone.
Authors: Teng Hanbing , Jiang Zhengguo , Wu Lamei , Su Jiangtao , Feng Xichun , Qiu Guofu , Liang Shucai , Hu Xianming
Published: April 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.
Total Synthesis of Ulongamide A, a Cyclic Depsipeptide Isolated from Marine Cyanobacteria Lyngbya sp.
Authors: Alvarado Cuauhtemoc , Diaz Eduardo , Guzman Angel
Published: April 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‐Assisted Synthesis of Hydroxyethylamine Dipeptide Isosteres.
Authors: Sova Matej , Babic Andrej , Pecar Slavko , Gobec Stanislav
Published: April 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.
Phase Transfer Catalyzed Enantioselective Strecker Reactions of α‐ Amido Sulfones with Cyanohydrins.
Authors: Herrera Raquel P. , Sgarzani Valentina , Bernardi Luca , Fini Francesco , Pettersen Daniel , Ricci Alfredo
Published: April 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.
Piperazimycins: Cytotoxic Hexadepsipeptides from a Marine‐Derived Bacterium of the Genus Streptomyces.
Authors: Miller Eric D. , Kauffman Christopher A. , Jensen Paul R. , Fenical William
Published: April 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 Rapid Stereoselective C‐Glycosidation of Indoles and Pyrrole via Indium Trichloride Promoted Reactions of Glycosyl Halides.
Authors: Mukherjee Debaraj , Sarkar Sujit K. , Chowdhury Uday S. , Taneja Subash C.
Published: April 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, Stereoselective Glycosylation—Spiroketalization of 3,4,5‐Tri‐O‐benzyl‐β‐D‐fructopyranose Generating Di‐D‐fructopyranose‐1,2′‐2,1′‐dianhydride.
Authors: Kaji Eisuke , Saiga Reiko , Kurimoto Emiko , Nishino Takashi
Published: April 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 Approach for Access to Both Carbapentofuranoses and Carbahexopyranoses. Stereocontrolled Synthesis of Enantiopure Carba‐D‐ribofuranoses, Carba‐D‐arabinofuranoses and Carba‐L‐gulopyranose.
Authors: Ghosh Subrata , Bhaumik Tanurima , Sarkar Niladri , Nayek Abhijit
Published: April 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.
Fluorous Synthesis of Sclerotigenin‐Type Benzodiazepine—Quinazolinones.
Authors: Zhang Wei , Williams John P. , Lu Yimin , Nagashima Tadamichi , Chu Qainli
Published: April 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‐Hydroxyyohimbine and Its Derivatives: New Potent α2‐Blockers for the Treatment of Erectile Dysfunction.
Authors: Somei Masanori , Noguchi Koichi , Yoshino Katsumasa , Mori Koichiro , Asada Mamiko , Yamada Fumio , Tanaka Yoshio , Shigenobu Koki , Koike Katsuo
Published: April 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 Properties of Oligonucleotides Containing C8‐Deoxyguanosine Arylamine Adducts of Borderline Carcinogens.
Authors: Boege Nicolas , Graesl Sonja , Meier Chris
Published: April 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.
Macrocyclic Glycosides from Clematis hexapetala
Authors: Shi She‐Po , Dong Cai‐Xia , Jiang Dan , Tu Peng‐Fei
Published: April 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.
Total Synthesis of (+)‐Obtusenyne.
Authors: Uemura Toshiyuki , Suzuki Toshio , Onodera Naohiro , Hagiwara Hisahiro , Hoshi Takashi
Published: April 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.
Syntheses of Ulocladol.
Authors: Abe Hitoshi , Fukumoto Tomoko , Nishioka Keisuke , Arai Masatsugu , Takeuchi Yasuo , Harayama Takashi
Published: April 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 New Pyrrolidine Derivatives as Inhibitors of α‐Mannosidase and of the Growth of Human Glioblastoma Cells.
Authors: Favre Sylvain , Fiaux Helene , Schuetz Catherine , Vogel Pierre , Juillerat‐Jeanneret Lucienne , Gerber‐Lemaire Sandrine
Published: April 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.
Influence of External Factors on Amorphous and Nanocrystalline Soft Magnetic Alloys Studied by Mossbauer Spectroscopy
Authors: Degmova J. , Sitek J. , Bednarcik J.
Published: April 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.
Phase Relations in Alkaline Earth—Manganese—Oxygen Systems: Equilibrium and Metastable States
Authors: Balakirev V. F. , Golikov Yu. V.
Published: April 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.
Theoretical Investigations on the Functionalization of Carbon Nanotubes
Authors: Mercuri Francesco , Sgamellotti Antonio
Published: April 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.
Inorganic Nanofluorides and Related Nanocomposites
Authors: Kuznetsov S. V. , Osiko V. V. , Tkatchenko E. A. , Fedorov P. P.
Published: April 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 Kinetic Ordering and Growth Dissymmetrisation in Crystalline Solid Solutions
Authors: Shtukenberg A. G. , Punin Yu. O. , Frank‐Kamenetskaya O. V.
Published: April 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.
Dinitrogen Functionalization with Bis(cyclopentadienyl) Complexes of Zirconium and Hafnium
Authors: Chirik Paul J.
Published: April 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.
Nitrilase and Its Application as a ′Green′ Catalyst
Authors: Singh Ram , Sharma Rakesh , Tewari Neetu , Geetanjali Geetanjali , Rawat Diwan S.
Published: April 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.
Azide‐Analogous Organophosphorus Chemistry: RNP2 as a Ligand and P2 Source
Authors: Weber Lothar
Published: April 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.
Organometallic Chemistry in the Melt Phase
Authors: Bala Muhammad D. , Coville Neil J.
Published: April 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 Miso, Sake and Shoyu to Cosmetics: A Century of Science for Kojic Acid
Authors: Bentley Ronald
Published: April 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.
Chemistry and Biology of a Series of Antitumor Sulfonamides: Exploiting Transcriptomic and Quantitative Proteomic Analyses for Exploring Druggable Chemical Space
Authors: Owa Takashi
Published: April 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 Application in Asymmetric Catalysis of Camphor‐Based Pyridine Ligands
Authors: Chelucci Giogio
Published: April 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.
Synthetic Ion Channels and Pores (2004—2005)
Authors: Sisson Adam L. , Shah Muhammad Raza , Bhosale Sheshanath , Matile Stefan
Published: April 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.
Carbon Flatland: Planar Tetracoordinate Carbon and Fenestranes
Authors: Keese Reinhart
Published: April 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.
Twisted Acenes
Authors: Pascal Robert A. Jr.
Published: April 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.
Aromatic Molecular Bowl Hydrocarbons: Synthetic Derivatives, Their Structure, and Physical Properties
Authors: Wu Yao‐Ting , Siegel Jay S.
Published: April 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.
Three‐Dimensional Hydrocarbon Cores Based on Multiply Fused Cyclopentane and Indan Units: Centropolyindans
Authors: Kuck Dietmar
Published: April 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.
Three‐Membered‐Ring‐Based Molecular Architectures
Authors: de Meijere Armin , Kozhushkov Sergei I. , Schill Heiko
Published: April 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.
Oligomeric and Polymeric Systems with a Cross‐Conjugated π‐Framework
Authors: Gholami Mojtaba , Tykwinski Rik R.
Published: April 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.
Chemistry of the Carba‐closo‐dodecaborate(‐) Anion, CB11H‐12.
Authors: Koerbe Stefanie , Schreiber Peter J. , Michl Josef
Published: April 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 Macrocyclic Oligo‐acetylenes to Aromatic Ring Carbo‐mers
Authors: Maraval Valerie , Chauvin Remi
Published: April 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.
Elimination Strategy for Aromatic Acetylenes
Authors: Orita Akihiro , Otera Junzo
Published: April 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.
Linking Chemistry and Biology for the Study of Protein Function
Authors: Rauh Daniel , Waldmann Herbert
Published: April 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.
Two Galactosyltransferases′ Selection of Different Binders from the Same Uridine‐Based Dynamic Combinatorial Library
Authors: Valade Anne , Urban Dominique , Beau Jean‐Marie
Published: April 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 Studies on the Red Sweat of the Hippopotamus
Authors: Hashimoto Kimiko , Saikawa Yoko , Nakata Masaya
Published: April 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 Constituents of the Plants from the Genus Laggera
Authors: Li Xing‐Cui , Huo Chang‐Hong , Shi Qing‐Wen , Kiyota Hiromasa
Published: April 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.
Insulated Molecular Wires
Authors: Frampton Michael J. , Anderson Harry L.
Published: April 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.
Classification of Self‐Organization and Emergence in Chemical and Biological Systems
Authors: Halley Julianne D. , Winkler David A.
Published: April 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.
Regularities in the Molecular Structures of Stable Fullerenes
Authors: Kovalenko V. I. , Khamatgalimov A. R.
Published: April 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.
Isotope‐Labeled Photoaffinity Reagents and Mass Spectrometry to Identify Protein—Ligand Interactions
Authors: Sinz Andrea
Published: April 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.
Supramolecular Analytical Chemistry.
Authors: Anslyn Eric V.
Published: April 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.
Topological Structure and Relaxation Properties of Branched Polymers
Authors: Irzhak V. I.
Published: April 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.
Laser‐Assisted Magnetic Resonance: Principles and Applications
Authors: Suter D. , Gutschank J.
Published: April 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.
Conformational Preferences of Glycopyranosides and Analogues — Comparative Study
Authors: Arias‐Perez Maria‐Selma
Published: April 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.
High prevalence of p53 exon 4 mutations in soft tissue sarcoma
Authors: Das Parimal , Kotilingam Dhanasekaran , Korchin Borys , Liu Jeuhui , Yu Dihua , Lazar Alexander J. , Pollock Raphael E. , Lev Dina
Published: April 2007

BACKGROUND

p53 is the most commonly mutated gene in cancer, including soft tissue sarcoma (STS). The authors characterized p53 alterations (protein accumulation and gene mutation) in STS to evaluate possible associations with patient outcomes.

METHODS

Thirty‐one STS specimens (multiple histologies) were analyzed by p53 immunohistochemistry (IHC) and direct DNA sequencing of p53 exons 2–11 and then correlated with outcomes.

RESULTS

Direct p53 sequencing detected mutations in 10 of 31 STSs; 7 of 10 were missense mutations, whereas 3 of 10 were either insertions or frameshift mutations, leading to nonfunctional truncated p53; 7 of these p53 mutations have not been previously described. Four p53 exon 4 mutations were identified, a p53 region previously unknown to be mutation prone. Eighteen of the 31 specimens expressed p53 when the authors used the clinical IHC assay of their institution. Interassay concordance of 48% was observed; only 6 of 10 sequencing‐identified p53 mutated specimens exhibited nuclear p53 protein expression by IHC, whereas 12 of 18 specimens exhibiting p53 protein expression by IHC harbored sequencing‐identified wild‐type p53. Decreased survival was observed in STS patients bearing sequencing‐identified mutated p53 versus wild‐type p53, as was a correlation between IHC‐determined nuclear p53 protein expression and decreased survival.

CONCLUSIONS

p53 protein stabilization and p53 mutation frequently occur in STS, and both suggest worse outcomes for patients so affected. However, increased p53 protein expression does not necessarily indicate p53 gene mutation. The high incidence of exon 4 mutations found in STS suggests that p53 sequencing should not be limited to the core DNA binding domain. Cancer 2007. © 2007 American Cancer Society.
Loss of heterozygosity and human telomerase reverse transcriptase (hTERT) expression in bronchial mucosa of heavy smokers
Authors: Capkova Linda , Kalinova Marketa , Krskova Lenka , Kodetova Daniela , Petrik Frantisek , Trefny Martin , Musil Jaromir , Kodet Roman
Published: April 2007

BACKGROUND

Lung carcinogenesis is a multistep process of accumulation of genetic changes, including loss of heterozygosity (LOH), and precedes phenotypic transformation of the bronchial mucosa. The activity of telomerase, correlating with the hTERT mRNA expression, is detectable in a majority of neoplasms. In this study, the frequency of LOH and hTERT expression in bronchial mucosa of heavy smokers in bronchoscopic biopsies was analyzed.

METHODS

LOH was examined in 122 bronchial specimens from 81 smokers (67 normal mucosa/bronchitis, 12 squamous metaplasia, 28 dysplasia, 15 bronchogenic carcinoma specimens) by polymerase chain reaction (PCR) and capillary electrophoresis by using 7 fluorescence‐labeled markers matching 5 chromosomal regions. hTERT expression was analyzed in 87 specimens (45 normal mucosa/bronchitis, 12 squamous metaplasia, 18 dysplasia, 12 bronchogenic carcinoma specimens) by real‐time quantitative reverse‐transcription PCR.

RESULTS

LOH was detected in at least 1 chromosomal region in 51 of 122 (41.8%) specimens; the incidence in normal bronchial mucosa and preneoplastic lesions was similar (20%–40%); a substantial rise (87%) occurred in carcinomas. The median normalized hTERTN values were 6.67 in normal epithelium/chronic bronchitis, 18.38 in squamous metaplasia, 13.31 in epithelial dysplasia, and 75.46 in carcinomas. These results were significantly different (P = .0036). With an increasing number of LOH, the median value of hTERTN expression rose, but hTERT was expressed also in tissue samples without any LOH detection.

CONCLUSIONS

Results indicated that hTERT expression, together with LOH, represent early events in lung carcinogenesis, as both were detected in precancerous lesions and in normal epithelium of heavy smokers. Cancer 2007. © 2007 American Cancer Society.
Theoretical Prediction and the First IR Matrix Observation of Several L‐Cysteine Molecule Conformers
Authors: Dobrowolski Jan Cz. , Jamróz Michał H. , Kołos Robert , Rode Joanna E. , Sadlej Joanna
Published: April 2007

For the first time the argon‐matrix low‐temperature IR spectra of cysteine are recorded. They reveal a quite complicated spectral pattern, which can also be reproduced in the N2 matrix. Assignment of the observed spectra is undertaken on the basis of comparison of the experimental and calculated B3LYP/aug‐cc‐pVDZ anharmonic IR spectra. The presence of at least three, and possibly even six or more, cysteine conformers with and without intramolecular hydrogen bonding is confirmed. On the basis of the calculated vibrational circular dichroism spectra, we predict this technique to be more distinctive for conformers than IR absorption is.
ZnO: Material, Physics and Applications
Authors: Klingshirn C.
Published: April 2007

ZnO is presently experiencing a research boom with more than 2000 ZnO‐related publications in 2005. This phenomenon is triggered, for example, by hope to use ZnO as a material for blue/UV optoelectronics as an alternative to GaN, as a cheap, transparent, conducting oxide, as a material for electronic circuits that are transparent in the visible or for semiconductor spintronics. Currently, however, the main problem is to achieve high, reproducible and stable p‐doping. Herein, we critically review aspects of the material growth, fundamental properties of ZnO and ZnO‐based nanostructures and doping as well as present and future applications with emphasis on the electronic and optical properties including stimulated emission.