bluuebunny/crossref_metadata_2025 huggingface dataset:
Reaction Chemistry of Complexes Containing PtH, PtSH, or PtS Fragments: From Their Apparent Simplicity to the Maze of Reactions Underlying Their Interconversion
Authors: Novio Fernando , González‐Duarte Pilar , Lledós Agustí , Mas‐Ballesté Rubén
Published: December 2006

The relevance of platinum in the reaction of thiophene and derivatives with homogeneous transition‐metal complexes as models for hydrodesulfurization has led us to the study of the reaction chemistry of complexes containing PtH, PtSH, and PtS fragments. Exploration of the reactions triggered by addition of controlled amounts of Na2S or NaSH to [Pt2(H)2(μ‐H)(dppp)2]ClO4 (1) has provided evidence of the formation of complexes [Pt2(μ‐H)(μ‐S)(dppp)2]ClO4 (2), [Pt(H)(SH)(dppp)] (3), [Pt2(μ‐S)2(dppp)2] (4), [Pt2(μ‐S)(dppp)2] (5) and [Pt(SH)2(dppp)], in which dppp denotes 1,3‐bis(diphenylphosphanyl)propane. Consequently, complexes 1, 2, and 5 as well as the already reported 3, 4, and [Pt(SH)2(dppp)] have been obtained and fully characterized spectroscopically. Also the crystal structures of 1 and 2 have been solved. Complexes 1–5 constitute the main framework of the network of reactions that account for the evolution of 1 under various experimental conditions as shown in Scheme 1. Apparently, this network has complexes 2 and 4 as dead‐ends. However, their reciprocal interconversion by means of the replacement of one bridging hydride or sulfide ligand in the respective {Pt(μ‐H)(μ‐S)Pt} and {Pt(μ‐S)2Pt} cores enables the closure of the reaction cycle involving complexes 1–5. Theoretical calculations support the existence of the undetected intermediates proposed for conversion from 1 to 2 and from 3 to 2 and also account for the fluxional behavior of 1 in solution. The intermediates proposed are consistent with the experimental results obtained in comparable reactions carried out with labeled reagents, which have provided evidence that complex 1 is the source of the hydride ligands in complexes 2 and 3. Overall, our results show the strong dependence on the experimental conditions for the formation of complexes 1–5 as well as for their further conversion in solution.
The Effect of Water on the Microstructure of 1‐Butyl‐3‐methylimidazolium Tetrafluoroborate/TX‐100/Benzene Ionic Liquid Microemulsions
Authors: Gao Yan'an , Li Na , Zheng Liqiang , Zhao Xueyan , Zhang Jin , Cao Quan , Zhao Mingwei , Li Zhen , Zhang Gaoyong
Published: December 2006

The ionic liquid (IL) 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([bmim][BF4]) forms nonaqueous microemulsions with benzene with the aid of nonionic surfactant TX‐100. The phase diagram of the ternary system was prepared, and the microstructures of the microemulsion were recognized. On the basis of the phase diagram, a series of ionic liquid‐in‐oil (IL/O) microemulsions were chosen and characterized by dynamic light scattering (DLS), which shows a similar swelling behavior to typical water‐in‐oil (W/O) microemulsions. The existence of IL pools in the IL/O microemulsion was confirmed by UV/Vis spectroscopic analysis with CoCl2 and methylene blue (MB) as the absorption probes. A constant polarity of the IL pool is observed, even if small amounts of water are added to the microemulsion, thus suggesting that the water molecules are solubilized in the polar outer shell of the microemulsion, as confirmed by FTIR spectra. 1H NMR spectroscopic analysis shows that these water molecules interact with the electronegative oxygen atoms of the oxyethylene (OE) units of TX‐100 through hydrogen‐bonding interactions, and the electronegative oxygen atoms of the water molecules attract the electropositive imidazolium rings of [bmim][BF4]. Hence, the water molecules are like a glue that stick the IL and OE units more tightly together and thus make the microemulsion system more stable. Considering the unique solubilization behavior of added water molecules, the IL/O microemulsion system may be used as a medium to prepare porous or hollow nanomaterials by hydrolysis reactions.
The Isolable Matryoshka Nesting Doll Icosahedral Cluster [As@Ni12@As20]3‐ as a “Superatom”: Analogy with the Jellium Cluster Al13‐ Generated in the Gas Phase by Laser Vaporization.
Authors: King R. Bruce , Zhao Jijun
Published: December 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.
Crystal Structure and Phase Transformations of Calcium Yttrium Orthophosphate, Ca3Y(PO4)3.
Authors: Fukuda Koichiro , Iwata Tomoyuki , Niwa Takahiro
Published: December 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.
Computational Modeling of Polyoxotungstates by Relativistic DFT Calculations of 183W NMR Chemical Shifts.
Authors: Bagno Alessandro , Bonchio Marcella , Autschbach Jochen
Published: December 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 Cobaltite with a Room Temperature Electrical and Magnetic Transition: YBaCo4O7.
Authors: Caignaert V. , Maignan A. , Pralong V. , Hebert Pralong S. , Pelloquin D.
Published: December 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.
Crystal Structure and Electrochemical Properties vs. Na+ of the Sodium Fluorophosphate Na1.5VOPO4F0.5.
Authors: Sauvage F. , Quarez E. , Tarascon J.‐M. , Baudrin E.
Published: December 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.
NaPr6Cl12[SiO4][PO4] and La6.333Cl12[SiO4][PO4]: Two Chloride Silicate Phosphates of Rare‐Earth Metals with Cation‐Filled Channel Structures.
Authors: Hartenbach Ingo , Sieke Corinna , Schleid Thomas
Published: December 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.
Hydroxide Flux Synthesis and Crystal Structure of the Ordered Palladate, LuNaPd6O8.
Authors: Mugavero Samuel J. III , Smith Mark D. , zur Loye Hans‐Conrad
Published: December 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.
Recyclization of 7‐Hydroxy‐3‐(4‐phenyl‐1,2,4‐triazol‐3‐yl)chromones Using Binucleophiles.
Authors: Shokol T. V. , Turov V. A. , Semeniuchenko V. V. , Krivokhizha N. V. , Khilya V. P.
Published: December 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.
Ring Expansion/Homologation—Aldehyde Condensation Cascade Using tert‐Trihalomethylcarbinols.
Authors: Falck J. R. , He Anyu , Reddy L. Manmohan , Kundu Abhijit , Barma Deb K. , Bandyopadhyay A. , Kamila Sukanta , Akella Radha , Bejot Romain , Mioskowski Charles
Published: December 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.
Radical Alkylation of Bis(silyloxy)enamine Derivatives of Organic Nitro Compounds.
Authors: Lee Jin Young , Hong Young‐Taek , Kim Sunggak
Published: December 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 α‐Hydroxylation of Aryl Ketones Using a Hypervalent Iodine(III) Sulfonate.
Authors: Huang H.‐Y. , Hou R. S. , Wang H.‐M. , Chen L.‐C.
Published: December 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 C—H Arylation of (Hetero)arenes with Aryl Iodides via Rhodium Catalysis.
Authors: Yanagisawa Shuichi , Sudo Tomoko , Noyori Ryoji , Itami Kenichiro
Published: December 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 Biomimetic Decarboxylation of Diphenylacetic Acid by [Mn(TPP)X]n‐Bu4NIO4 Catalytic Systems: Effect of Anionic Axial Ligands (X‐).
Authors: Karimipour Gholam Reza , Montazerozohoori Morteza , Karami Bahador
Published: December 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 Fluorous Methoxymethyl (FMOM) Protecting Group for Alcohols.
Authors: Curran Dennis P. , Ogoe Claude
Published: December 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 Novel 3‐Nitrobenzeneboronic Acid as an Extremely Mild and Environmentally Benign Catalyst for the Acetylation of Alcohols under Solvent‐Free Conditions.
Authors: Tale R. H. , Adude R. N.
Published: December 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 Cyclopentene Derivatives by the Cyclooligomerization of Isocyanides with Substituted Benzylidenemalononitriles.
Authors: Maltsev Sergey S. , Mironov Maxim A. , Bakulev Vasiliy A.
Published: December 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.
Nickel‐Catalyzed [3 + 1 + 1] Cycloaddition Reactions of Alkenyl Fischer Carbene Complexes with Methylenecyclopropanes.
Authors: Kamikawa Ken , Shimizu Yasunori , Takemoto Shin , Matsuzaka Hiroyuki
Published: December 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.
Iridium‐Catalyzed Enantioselective Synthesis of Allylic Alcohols: Silanolates as Hydroxide Equivalents.
Authors: Lyothier Isabelle , Defieber Christian , Carreira Erick M.
Published: December 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.
Regio‐ and Stereoselective Double Alkylation of β‐Enamino Esters with Organolithium Reagents Followed by One‐Pot Reduction: Convenient Method for the Synthesis of Tertiary γ‐Amino Alcohols.
Authors: Cimarelli Cristina , Palmieri Gianni , Volpini Emanuela
Published: December 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.
Intermolecular Rhodium‐Catalyzed Carbometalation/Heck‐Type Reaction in Water.
Authors: Kurahashi Takuya , Shinokubo Hiroshi , Osuka Atsuhiro
Published: December 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, Environmentally Benign Sulfonamide Synthesis in Water.
Authors: Deng Xiaohu , Mani Neelakandha S.
Published: December 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.
Preparation of Allyl Sulfoxides by Palladium‐Catalyzed Allylic Alkylation of Sulfenate Anions.
Authors: Maitro Guillaume , Prestat Guillaume , Madec David , Poli Giovanni
Published: December 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 Atom‐Efficient Palladium‐Catalyzed Cross‐Coupling Reaction of Triarylbismuths with Acid Chlorides: Synthesis of Diaryl and Alkyl Aryl Ketones.
Authors: Rao Maddali L. N. , Venkatesh Varadhachari , Jadhav Deepak N.
Published: December 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 Anticancer Activity Studies of α‐Aminoalkylated Conjugated Nitroalkenes.
Authors: Rastogi Namrata , Mohan Renu , Panda Dulal , Mobin Shaikh M. , Namboothiri Irishi N. N.
Published: December 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.
Tandem Ring Expansion of Alkenyl Benzocyclobutenol Derivatives into Substituted Naphthols.
Authors: Hamura Toshiyuki , Suzuki Takeaki , Matsumoto Takashi , Suzuki Keisuke
Published: December 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.
Chemistry of Anthracene‐Acetylene Oligomers. Part 5. Construction of Strained Frameworks with 1,8‐Anthrylene Units and Acetylene Linkers: Synthesis and Structures of Cyclic Trimers.
Authors: Goichi Michio , Miyahara Hiroaki , Toyota Shinji
Published: December 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.
Cycloaddition Reaction of Zirconacyclopentadienes to Quinones: Synthesis of Higher para‐Quinones.
Authors: Chen Chao , Xi Chanjuan , Ai Zhezhe , Hong Xiaoyin
Published: December 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 Electronic Properties of (Oligo)phenothiazine‐ethynyl‐hydro‐C60 Dyads.
Authors: Bucci Nadine , Mueller Thomas J. J.
Published: December 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 [2 + 2] Cycloadditions Between C1‐Substituted 7‐Oxanorbornadienes and Alkynes.
Authors: Burton Ryan R. , Tam William
Published: December 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 Novel Heterocyclic Structures via Reaction of Isocyanides with s‐trans‐Enones.
Authors: Winkler Jeffrey D. , Asselin Sylvie M.
Published: December 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.
Gold(I)‐Catalyzed Domino Ring‐Opening Ring‐Closing Hydroamination of Methylenecyclopropanes (MCPs) with Sulfonamides: Facile Preparation of Pyrrolidine Derivatives.
Authors: Shi Min , Liu Le‐Ping , Tang Jie
Published: December 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, Pharmacology and Molecular Modeling of N‐Substituted 2‐Phenyl‐indoles and Benzimidazoles as Potent GABAA Agonists.
Authors: Falco Jose Luis , Pique Maria , Gonzalez Miguel , Buira Irma , Mendez Eva , Terencio Jose , Perez Cristina , Princep Marta , Palomer Albert , Guglietta Antonio
Published: December 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.
Copper‐Catalyzed N‐Arylation of Oxindoles.
Authors: Phillips Dean P. , Hudson Andrew R. , Nguyen Bao , Lau Thomas L. , McNeill Matthew H. , Dalgard Jackline E. , Chen Jyun‐Hung , Penuliar Richard J. , Miller Todd A. , Zhi Lin
Published: December 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 Friedel—Crafts Reaction of Indoles with Carbonyl Compounds Catalyzed by Bifunctional Cinchona Alkaloids.
Authors: Li Hongming , Wang Yong‐Qiang , Deng Li
Published: December 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 First Synthesis of Thermally Stable Acylamino‐Substituted 1,2‐Dioxetanes.
Authors: Matsumoto Masakatsu , Sano Yusuke , Watanabe Nobuko , Ijuin Hisako K.
Published: December 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.
Regioselective Unusual Formation of Spirocyclic 4‐{2′‐Benzo(2′,3′‐dihydro)furo}‐9‐methyl‐2,3,9‐trihydrothiopyrano [2,3‐b]indole by 4‐exo‐trig Aryl Radical Cyclization and Rearrangement.
Authors: Majumdar K. C. , Alam S.
Published: December 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.
Substituted 2‐Phenyl‐benzimidazole Derivatives: Novel Compounds that Suppress Key Markers of Allergy.
Authors: Richards Mark L. , Cruz Lio Shirley , Sinha Anjana , Banie Homayon , Thomas Richard J. , Major Michael , Tanji Mark , Sircar Jagadish C.
Published: December 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 2‐Oxazolidinones from (1S,2S)‐2‐Amino‐1‐(4‐nitrophenyl)‐1,3‐propanediol.
Authors: Madesclaire M. , Coudert P. , Zaitsev V. P. , Zaitseva J. V.
Published: December 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 α‐Spiroheteryl‐Fused Butanolides.
Authors: Kochikyan T. V. , Samvelyan M. A. , Harutyunyan V. S. , Avetisyan A. A.
Published: December 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.
Diastereo‐ and Enantioselective Tandem Michael Addition and Lactonization Catalyzed by Chiral Quaternary Ammonium Phenoxide: Stereoselective Synthesis of the Two Enantiomers by Using a Single Chiral Source.
Authors: Mukaiyama Teruaki , Nagao Hitoshi , Yamane Yoshinobu
Published: December 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.
Amination of the ortho C—H Bonds by the Cu(OAc)2‐Mediated Reaction of 2‐Phenylpyridines with Anilines.
Authors: Uemura Takeshi , Imoto Shinya , Chatani Naoto
Published: December 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 Access to Heterocyclic Scaffolds by New Multicomponent Ugi—Smiles Couplings.
Authors: El Kaim Laurent , Gizolme Marie , Grimaud Laurence , Oble Julie
Published: December 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.
4‐Hydroxy‐2‐quinolones. Part 93. Synthesis and Biological Properties of 2‐Hydroxy‐4‐imino‐1,4‐dihydroquinoline‐3‐carboxylic Acid N‐R‐Amides.
Authors: Ukrainets I. V. , Sidorenko L. V. , Gorokhova O. V. , Jaradat N. A.
Published: December 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.
Conjugate Additions of Sulfur‐Stabilized Anions to Unsaturated Lactams. Synthesis of Polyfunctionalized Benzo[a]quinolizinone Systems.
Authors: Garcia Eva , Lete Esther , Sotomayor Nuria
Published: December 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.
Nucleophilic Substitution in 1‐Alkyl‐4,5‐dichloro‐3‐nitropyridazin‐6‐ones
Authors: Volovenko Yu. M. , Volovnenko T. A.
Published: December 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.
Benign and Efficient Synthesis of 2‐Substituted 4(3H)‐Quinazolinones Mediated by Iron(III) Chloride Hexahydrate in Refluxing Water.
Authors: Wang Guan‐Wu , Miao Chun‐Bao , Kang Hui
Published: December 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.
2‐(2‐Furyl)imidazo[1,2‐a]pyrimidine Synthesis and Electrophilic Substitution Reactions.
Authors: Saldabol N. , Popelis J. , Lando O. , Slavinska V.
Published: December 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 Data on the Alkylation of Cyclic Thioureas with α‐Halocarboxylic Acids and Their Esters. Part 2. Alkylation of Tetrahydropyrimidine‐2(1H)‐thione and 5,5‐Dimethyltetrahydropyrimidine‐2(1H)‐thione.
Authors: Kushakova P. M. , Yulisova A. I. , Ramsh S. M. , Garabadgiu A. V.
Published: December 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 Structure of 7‐Alkoxyalkyl‐3‐thia‐7‐azabicyclo[3.3.1]nonan‐9‐ones and Several of Their Derivatives.
Authors: Yu V. K. , Praliev K. D. , Fomicheva E. E. , Mukhasheva R. D. , Klepikova S. G.
Published: December 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.
Rhodium‐Catalyzed Silylation of ortho‐Functionalized Aryl Halides with Hydrosilanes.
Authors: Yamanoi Yoshinori , Nishihara Hiroshi
Published: December 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 Role of the 11‐cis‐Retinal Ring Methyl Substituents in Visual Pigment Formation.
Authors: Dominguez Marta , Alvarez Rosana , Perez Martin , Palczewski Krzysztof , de Lera Angel R.
Published: December 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.
Hookerianolides A—C: Three Novel Casbane‐Type Diterpenoid Lactones from Mallotus hookerianus.
Authors: Bai Yang , Yang Yi‐ping , Ye Yang
Published: December 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 Norditerpenoids from Cespitularia hypotentaculata
Authors: Shen Ya‐Ching , Lin Jyun‐Jhou , Wu Ying‐Ru , Chang Jiun‐Yang , Duh Chang‐Yih , Lo Kuang Liang
Published: December 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.
Mature Homogeneous Erythropoietin Building Blocks by Chemical Synthesis: The EPO 22‐37 Glycopeptide Domain Presenting the Full N‐Linked Dodecasaccharide.
Authors: Wu Bin , Tan Zhongping , Chen Gong , Chen Jiehao , Hua Zihao , Wan Qian , Ranganathan Krishnakumar , Denishefsky Samuel J.
Published: December 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.
Practical Approach for the Stereoselective Introduction of β‐Arabinofuranosides.
Authors: Zhu Xiangming , Kawatkar Sameer , Rao Yu , Boons Geert‐Jan
Published: December 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.
Immobilization Techniques for Mono‐ and Oligosaccharide Microarrays.
Authors: Monzo Alex , Guttman Andras
Published: December 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 Model for Cell‐Surface‐Exposed Carbohydrate Moieties Suitable for Structural Studies by NMR Spectroscopy.
Authors: Mares Jiri , Mueller Jan U. , Skirgailiene Audrone , Neumoin Alexey , Bewley Carole A. , Schmidt Richard R. , Zerbe Oliver
Published: December 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 Gemcitabine Analogues as Potential Antitumor Agents.
Authors: Ding Yili
Published: December 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.
De Novo Asymmetric Syntheses of Muricatacin and Its Analogues via Dihydroxylation of Dienoates.
Authors: Ahmed Md. Moinuddin , Cui Hu , O'Doherty George A.
Published: December 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 Concise Asymmetric Route to the Antibiotic Macrolides Patulolide A (I) and Pyrenophorin (II).
Authors: Rao K. Srinivasa , Reddy D. Srinivasa , Mukkanti K. , Pal Manojit , Iqbal Javed
Published: December 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.
Erinacines J and K from the Mycelia of Hericium erinaceum.
Authors: Kawagishi Hirokazu , Masui Ayano , Tokuyama Shinji , Nakamura Tomoyuki
Published: December 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.
Stereoselectivity, Sequence Specificity and Mechanism of Action of the Azinomycin Epoxide.
Authors: David‐Cordonnier Marie‐Helene , Casely‐Hayford Maxwell , Kouach Mostafa , Briand Gilbert , Patterson Laurence H. , Bailly Christian , Searcey Mark
Published: December 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.
Tellurium in Organic Synthesis: An Approach to the Synthesis of (Z,E)‐Dienic Precursors of Insect Pheromones.
Authors: Diego Dennis G. , Cunha Rodrigo L. O. R. , Comasseto Joao V.
Published: December 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.
Nonaqueous Synthesis of Metal Oxide Nanoparticles: Review and Indium Oxide as Case Study for the Dependence of Particle Morphology on Precursors and Solvents
Authors: Niederberger Markus , Garnweitner Georg , Buha Jelena , Polleux Julien , Ba Jianhua , Pinna Nicola
Published: December 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.
Promotion Effects in Co‐Based Fischer—Tropsch Catalysis
Authors: Morales Fernando , Weckhuysen Bert M.
Published: December 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.
Single Crystal to Single Crystal Structural Transformations in Molecular Framework Materials
Authors: Halder Gregory J. , Kepert Cameron J.
Published: December 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.
Recent Advances in the Dynamics of Single Crystal to Single Crystal Transformations in Metal—Organic Open Frameworks
Authors: Suh Myunghyun Paik , Cheon Young Eun
Published: December 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.
Similarities and Contrasts Between Silyl and Stannyl Derivatives of Ruthenium and Osmium
Authors: Roper Warren R. , Wright L. James
Published: December 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.
Construction of Fused Polycyclic Ethers by Strategies Involving Ring‐Closing Metathesis
Authors: Clark J. Stephen
Published: December 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.
Cascade Reactions Involving Pauson—Khand and Related Processes
Authors: Perez‐Castells Javier
Published: December 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.
Spin‐Labeled Fulleropyrrolidines
Authors: Corvaja Carlo , Conti Fosca , Franco Lorenzo , Maggini Michele
Published: December 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.
Diaryl Ketones as Photoactivators
Authors: Perez‐Prieto J. , Galian R. E. , Miranda M. A.
Published: December 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.
Synthetic Uses of Peroxides
Authors: Berkessel Albrecht , Vogl Nadine
Published: December 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.
Sulfur and Phosphorus Peroxides
Authors: Jadhav Vidyadhar , Park Min Young , Kim Yong Hae
Published: December 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 Addition to Ketones: Enantioselective Formation of Tertiary Alcohols
Authors: Garcia Celina , Martin Victor S.
Published: December 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.
Aminoboranes as New Iminium Ion Generators in Amination Reactions
Authors: Suginome Michinori
Published: December 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.
Polar Effects in Decomposition of Peroxidic Compounds and Related Reactions
Authors: Kim Sung Soo
Published: December 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.
Ru(III)‐Catalyzed Oxidation of Some Amines by Chloramine‐T in Hydrochloric Acid Medium — Mechanistic Aspects and Kinetic Modeling
Authors: Shivananda K. N. , Jagadeesh R. V. , Puttaswamy Puttaswamy , Mahendra K. N.
Published: December 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.
α‐ and β‐Glucosidase Inhibitors: Chemical Structure and Biological Activity
Authors: Borges de Melo Eduardo , da Silveira Gomes Adriane , Carvalho Ivone
Published: December 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.
Green Chemistry for Sustainable Cement Production and Use
Authors: Phair John W.
Published: December 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.
Magnetic Penetration Depth in Unconventional Superconductors
Authors: Prozorov Ruslan , Giannetta Russell W.
Published: December 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.
Quantum Mechanical Determinations of Reaction Mechanisms, Acid Base, and Redox Properties of Nitrogen Oxides and Their Donors
Authors: Dutton Andrew S. , Fukuto Jon M. , Houk K. N.
Published: December 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.
Rod and cone input to horizontal cells in the rabbit retina
Authors: Pan Feng , Massey Stephen C.
Published: December 2006

In the rabbit retina, there are two types of horizontal cell (HC). The A‐type HC is axonless and extensively coupled. The B‐type HC is axon bearing; the somatic dendrites are radially symmetric and form a second coupled network, while the axon branches expansively to form a complex terminal structure. The B‐type axon terminals (ATs) are independently coupled to form a third network in the outer plexiform layer. We have modified our dye‐injection methods to obtain detailed fills of the three different horizontal cell networks for analysis via confocal microscopy. We have confirmed that A‐type HCs and the somatic dendrites of B‐type HCs receive input exclusively from cones, whereas the B‐type ATs receive input only from rods. A single B‐type AT may receive input from as many as 1,000 rods, but, surprisingly, our data reveal only one end terminal per rod spherule. The somatic dendrites of A‐ and B‐type HCs form clusters at each cone pedicle coincident with GluR2/3 and GluR4 glutamate receptor subunits. The B‐type ATs have GluR2/3‐ or GluR4‐labeled glutamate receptors in two locations: small puncta on the end terminals within the rod spherule invagination and large clusters on the terminal stalks, approximately 1.5 μm from the rod synaptic ribbon. We conclude that AMPA receptors of the same or similar composition mediate photoreceptor input to all types of HCs. J. Comp. Neurol. 500:815–831, 2007. © 2006 Wiley‐Liss, Inc.
Selective loss of dentate hilar interneurons contributes to reduced synaptic inhibition of granule cells in an electrical stimulation‐based animal model of temporal lobe epilepsy
Authors: Sun Chengsan , Mtchedlishvili Zakaria , Bertram Edward H. , Erisir Alev , Kapur Jaideep
Published: December 2006

Neuropeptide‐containing hippocampal interneurons and dentate granule cell inhibition were investigated at different periods following electrical stimulation‐induced, self‐sustaining status epilepticus (SE) in rats. Immunohistochemistry for somatostatin (SOM), neuropeptide Y (NPY), parvalbumin (PV), cholecystokinin (CCK), and Fluoro‐Jade B was performed on sections from hippocampus contralateral to the stimulated side and studied by confocal laser scanning microscopy. Compared to paired age‐matched control animals, there were fewer SOM and NPY‐immunoreactive (IR) interneurons in the hilus of the dentate gyrus in animals with epilepsy (40–60 days after SE), and 1, 3, and 7 days following SE. In the hilus of animals that had recently undergone SE, some SOM‐IR and NPY‐IR interneurons also stained for Fluoro‐Jade B. Furthermore, there was electron microscopic evidence of the degeneration of SOM‐IR interneurons following SE. In contrast, the number of CCK and PV‐IR basket cells in epileptic animals was similar to that in controls, although it was transiently diminished following SE; there was no evidence of degeneration of CCK or PV‐IR interneurons. Patch‐clamp recordings revealed a diminished frequency of inhibitory postsynaptic currents in dentate granule cells (DGCs) recorded from epileptic animals and animals that had recently undergone SE compared with controls. These results confirm the selective vulnerability of a particular subset of dentate hilar interneurons after prolonged SE. This loss may contribute to the reduced GABAergic synaptic inhibition of granule cells in epileptic animals. J. Comp. Neurol. 500:876–893, 2007. © 2006 Wiley‐Liss, Inc.
Metabotropic glutamate receptor 4‐immunopositive terminals of medium‐sized spiny neurons selectively form synapses with cholinergic interneurons in the rat neostriatum
Authors: Kuramoto Eriko , Fujiyama Fumino , Unzai Tomo , Nakamura Kouichi , Hioki Hiroyuki , Furuta Takahiro , Shigemoto Ryuichi , Ferraguti Francesco , Kaneko Takeshi
Published: December 2006

Metabotropic glutamate receptor 4 (mGluR4) is localized mainly to presynaptic membranes in the brain. Rat neostriatum has been reported to contain two types of mGluR4‐immunoreactive axon varicosities: small, weakly immunoreactive varicosities that were distributed randomly (type 1) and large, intensely immunoreactive ones that were often aligned linearly (type 2). In the present study, most type 1 terminals formed asymmetric synapses on dendritic spines, whereas type 2 terminals made symmetric synapses on dendritic shafts, showing immunoreactivity for GABAergic markers. After depletion of neostriatal neurons, type 2 but not type 1 varicosities were largely decreased in the damaged region. When medium‐sized spiny neurons (MSNs) were labeled with Sindbis virus expressing membrane‐targeted green fluorescent protein, mGluR4 immunoreactivity was observed on some varicosities of their axon collaterals in immunofluorescence and immunoelectron microscopies. Furthermore, type 2 varicosities were often positive for substance P but mostly negative for striatal interneuron markers and preproenkephalin. Thus, striatonigral/striato‐entopeduncular MSNs are likely to be the largest source of type 2 mGluR4‐immunopositive axon terminals in the neostriatum. Next, in the double‐immunofluorescence study, almost all choline acetyltransferase (ChAT)‐immunopositive and 41% of NK1 receptor‐positive dendrites were heavily associated with type 2 mGluR4‐immunoreactive varicosities. Neuronal nitric oxide synthase (nNOS)‐positive dendrites, in contrast, seemed associated with only a few type 2 varicosities. Conversely, almost all type 2 varicosities were closely apposed to NK1 receptor‐positive dendrites that were known to be derived from cholinergic and nNOS‐producing interneurons. These findings indicate that the mGluR4‐positive terminals of MSN axon collaterals selectively form synapses with neostriatal cholinergic interneurons. J. Comp. Neurol. 500:908–922, 2007. © 2006 Wiley‐Liss, Inc.
Morphological and physiological properties of parvalbumin‐ and calretinin‐containing γ‐aminobutyric acidergic neurons in the substantia nigra
Authors: Lee Christian R. , Tepper James M.
Published: December 2006

Evidence for the existence of different populations of γ‐aminobutyric acid (GABA)‐ergic neurons in the substantia nigra comes partially from anatomical studies, which have shown there to be little if any overlap between the calcium‐binding proteins parvalbumin and calretinin in individual neurons, suggesting that these may represent neuronal subtypes with distinct electrophysiological and/or anatomical properties. We obtained whole‐cell recordings from neurons in the substantia nigra pars reticulata in rat brain slices and labeled them with biocytin, followed by immunocytochemical staining for parvalbumin and calretinin. In other cases, neurons were retrogradely labeled from the thalamus or tectum and immunocytochemically identified to determine their projection sites. Intracellularly stained neurons were found to have a variety of somatic sizes and shapes. Reconstructions revealed that all parvalbumin‐ and calretinin‐positive neurons issued at least one axon collateral, which ramified within the substantia nigra pars reticulata and/or pars compacta. Local collaterals were of medium caliber and branched modestly, expressing many long, smooth segments that then issued numerous en passant or terminal boutons, consistent with previous in vivo studies. There were no clear differences in the electrophysiological or morphological properties of neurons expressing parvalbumin or calretinin. Retrograde tracing experiments revealed that both parvalbumin‐ and calretinin‐containing neurons project nonpreferentially to the thalamus or tectum. In sum, the parvalbumin‐ and calretinin‐containing GABAergic neurons of the substantia nigra pars reticulata cannot be differentiated on the basis of their electrophysiological properties, morphological properties, or target nuclei, and both parvalbumin‐ and calretinin‐containing projection neurons issue local axon collaterals that arborize within the substantia nigra. J. Comp. Neurol. 500:958–972, 2007. © 2006 Wiley‐Liss, Inc.
The potential energy of knowledge flow
Authors: Zhuge Hai , Guo Weiyu , Li Xiang
Published: December 2006

A knowledge flow is invisible but it plays an important role in ordering knowledge exchange when working in a team. It can help achieve effective team knowledge management by modeling, optimizing, monitoring, and controlling the operation of knowledge flow processes. This paper proposes the notion of knowledge energy as the driving force behind the formation of an autonomous knowledge flow network, and explores the underlying principles. Knowing these principles helps teams and the support systems improve cooperation by monitoring the knowledge energy of nodes, by evaluating and adjusting knowledge flows, and by adopting appropriate strategies. A knowledge flow network management mechanism can help improve the efficiency of knowledge‐intensive distributed teamwork. Copyright © 2006 John Wiley & Sons, Ltd.
Using semantic links to support top‐K join queries in peer‐to‐peer networks
Authors: Liu Jie , Feng Liang , Zhuge Hai
Published: December 2006

An important issue raised in peer‐to‐peer (P2P) applications is how to accurately and efficiently retrieve a set of K best matching data objects from different sources while minimizing the number of objects that have to be accessed. The proposed solution is to organize peers by a semantic link network representing the semantic relationships between peers' data schemas. Queries are only routed to semantically relevant peers. A pruning‐based local top‐K ranking approach is proposed to reduce the transmitted data by pruning tuples that cannot produce the desired join results with a rank value at least equal to the lowest rank value generated. Experiments evaluate its performance in terms of the number of transmitted tuples and the miss rate. Comparison with the traditional threshold algorithm for centralized systems and other top‐K ranking algorithms for P2P networks shows the features of the proposed approach. Copyright © 2006 John Wiley & Sons, Ltd.
Exploration of the Ca2+ Interaction Modes of the Nifedipine Calcium Channel Antagonist
Authors: Liu Huichun , Zhang Liang , Li Ping , Cukier Robert I. , Bu Yuxiang
Published: December 2006

A comprehensive study is carried out using quantum chemical computation and molecular dynamics (MD) simulations to gain insight into the interaction between Ca2+ ions and the most important class of calcium channel antagonists—nifedipine. First, the chelating structures and energetic characters of nifedipine–Ca2+ in the gas phase are explored, and 25 isomers are found. The most favorable chelating mode is a tridentate one, that is, Ca2+ binds to two carbonyl O atoms and one nitryl O atom, where Ca2+ is above the plane of the three O atoms to form a pyramidal structure. Accurate geometric structures, relative stabilities, vertical and adiabatic binding energies, and charge distributions are discussed. The differences in the geometries and energies among these isomers are analyzed from the contributions of chelating sites, electrostatics and polarizations, steric repulsions, and charge distributions. The interconversions among isomers with similar geometries and energies are also investigated because of the importance of the geometric transformation in the biological system. Furthermore, certain numbers of water molecules are added to the nifedipine–Ca2+ system to probe the effect of water. A detailed study is performed on the hydrated geometries on the basis of the most stable isomer 1. Stepwise hydration can weaken the nifedipine–Ca2+ interaction, and the chelating sites of nifedipine are gradually replaced by the added water molecules. Hexacoordination is found to be the most favorable geometry no matter how many water molecules were added, which can be verified by the MD simulations. The transfer of water molecules from the inner shell to the outer shell is also supported by MD simulations of the hexahydrated complexes.