bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biosynthesis of the Vitamin E Compound δ‐Tocotrienol in Recombinant Escherichia coli Cells
Authors: Albermann Christoph , Ghanegaonkar Shashank , Lemuth Karin , Vallon Tobias , Reuss Matthias , Armbruster Wolfgang , Sprenger Georg A. 
Published: September 2008

AbstractThe biosynthesis of natural products in a fast growing and easy to manipulate heterologous host system, such as Escherichia coli, is of increasing interest in biotechnology. This procedure allows the investigation of complex natural product biosynthesis and facilitates the engineering of pathways. Here we describe the cloning and the heterologous expression of tocochromanol (vitamin E) biosynthesis genes in E. coli. Tocochromanols are synthesized solely in photosynthetic organisms (cyanobacteria, algae, and higher green plants). For recombinant tocochromanol biosynthesis, the genes encoding hydroxyphenylpyruvate dioxygenase (hpd), geranylgeranylpyrophosphate synthase (crtE), geranylgeranylpyrophosphate reductase (ggh), homogentisate phytyltransferase (hpt), and tocopherol‐cyclase (cyc) were cloned in a stepwise fashion and expressed in E. coli. Recombinant E. coli cells were cultivated and analyzed for tocochromanol compounds and their biosynthesis precursors. The expression of only hpd from Pseudomonas putida or crtE from Pantoea ananatis resulted in the accumulation of 336 mgL−1 homogentisate and 84 μgL−1 geranylgeranylpyrophosphate in E. coli cultures. Simultaneous expression of hpd, crtE, and hpt from Synechocystis sp. under the control of single tac‐promoter resulted in the production of methyl‐6‐geranylgeranyl‐benzoquinol (67.9 μg g−1). Additional expression of the tocopherol cyclase gene vte1 from Arabidopsis thaliana resulted in the novel formation of a vitamin E compound—δ‐tocotrienol (15 μg g−1)—in E. coli.
Spontaneous Resolution of Chiral Polyoxometalate‐Based Compounds Consisting of 3D Chiral Inorganic Skeletons Assembled from Different Helical Units
Authors: Lan Ya‐Qian , Li Shun‐Li , Wang Xin‐Long , Shao Kui‐Zhan , Du Dong‐Ying , Su Zhong‐Min , Wang En‐Bo 
Published: September 2008

AbstractFour enantiomerically pure 3D chiral POM‐based compounds, [Ni2(bbi)2(H2O)4V4O12]⋅2 H2O (1 a and 1 b) and [Co(bbi)(H2O)V2O6] (2 a and 2 b) (bbi=1,1′‐(1,4‐butanediyl)bisimidazole) based on the achiral ligand, different vanadate chains, and different metal centers have been synthesized by hydrothermal methods. Single‐crystal X‐ray diffraction analyses revealed that 1 a and 1 b, and 2 a and 2 b, respectively, are enantiomers. In 1 a and 1 b two kinds of vanadate chains with different screw axes link Ni cations to generate 3D chiral inorganic skeletons, which are connected by the achiral bbi ligands to form complicated 3D 3,4‐connected chiral self‐penetrating frameworks with (72⋅8)(72⋅82⋅92)(73⋅82⋅10) topology. They represent the first examples of chiral self‐penetrating frameworks known for polyoxometalate (POM) systems. Contrary to 1 a and 1 b, in 2 a and 2 b the vanadate chains link CoII cations to generate 3D chiral inorganic skeletons, which are assembled from two kinds of heterometallic helical units of opposite chirality along the c axes. The chiral inorganic skeletons are connected by bbi to form 3D 3,4‐connected chiral POM‐based frameworks with (62⋅8)2(62⋅82⋅102) topology. It is believed that the asymmetrical coordination modes of the metal cations in 1 a–2 b generate the initial chiral centers, and that the formation of the various helical units and the hydrogen bond interactions are responsible for preservation of the chirality and spontaneous resolution when the chirality is extended into the homochiral 3D‐networks. This is the first known report of chiral POM‐based compounds consisting of 3D chiral inorganic skeletons being obtained by spontaneous resolution upon crystallization in the absence of any chiral source, which may provide a rational strategy for synthesis of chiral POM‐based compounds by using achiral ligands and POM helical units.
Contributions from Atomic p(Se), d(Se), and f(Se) Orbitals to Absolute Paramagnetic Shielding Tensors in Neutral and Charged SeHn and Some Oxides Including the Effect of Methyl and Halogen Substitutions on σp(Se)
Authors: Nakanishi Waro , Hayashi Satoko , Narahara Kenji , Hada Masahiko 
Published: September 2008

AbstractContributions from atomic p(Se), d(Se), and f(Se) orbitals to σp(Se) are evaluated for neutral and charged Se*Hn (*=null, +, or −) and some oxides to build the image of the contributions. The effect of methyl and halogen substitutions is also examined employing RrSe*XxOo (*=null, +, or −) where R=H or Me; X=F, Cl, or Br. The p(Se) contributions are larger than 96 % for SeH− (C∞v), SeH2 (C2v), SeH3+ (C3v), SeH3+ (D3h), and SeH4 (Td). Therefore, σp(Se) of these compounds can be analyzed based on p(Se). The p(Se) contributions are 79–75 % for SeH4 (TBP), SeH5+ (TBP), SeH5+ (SP), and SeH5− (SP). Methyl and halogen substitutions increase the contributions by 1–2 % (per Me) and 4–7 % (per X), respectively. The contributions are 92–79 % for H2SeO (Cs), H2SeO2 (C2v), and H4SeO (C2v). The values are similarly increased by the substitutions. Consequently, σp(Se) of these compounds can be analyzed based on p(Se) with some corrections by d(Se). The p(Se) contribution of SeH6 (Oh) is 52 %: σp(Se: SeH6 (Oh)) must be analyzed based on both p(Se) and d(Se). The contributions for the Me and X derivatives of SeH6 amount to 86–77 %. Therefore, σp(Se) of the derivatives can also be analyzed mainly based on p(Se) with some corrections by d(Se). Contributions from f(Se) are negligible. Contributions from 4p(Se) in vacant orbitals are also considered. A utility program derived from the Gaussian 03 (NMRANAL‐NH03G) is applied to evaluate the contributions.
ChemInform Abstract: Stability of Singly Hydrated Silanone on Silicon Quantum Dot Surfaces: Density Functional Simulations.
Authors: Eyre R. J. , Gross J. P. , MacLeod R. M. , Briddon P. R. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structure of Ca(BD4)2 β‐Phase from Combined Neutron and Synchrotron X‐Ray Powder Diffraction Data and Density Functional Calculations.
Authors: Buchter F. , et al. et al. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Crystal Structure of the Terbium Borocarbide Tb2B2C3.
Authors: Babizhetskyy Volodymyr , Mattausch Hansjuergen , Simon Arndt 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: ZrCuSiAs‐Type Phosphide Oxides: TbRuPO, DyRuPO, the Series LnOsPO (Ln: La, Ce, Pr, Nd, Sm), and ThAgPO.
Authors: Jeitschko Wolfgang , Zimmer Barbara I. , Glaum Robert , Boonk Ludger , Rodewald Ute Ch. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Characterization of Environmentally Benign Calcium‐Doped Pr2Mo2O9 Pigments: Applications in Coloring of Plastics.
Authors: George Giable , Kumari L. Sandhya , Vishnu V. S. , Ananthakumar S. , Reddy M. L. P. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Crystal Structure, Stoichiometry, and Dielectric Relaxation in Bi3.32Nb7.09O22.7 and Structurally Related Ternary Phases.
Authors: Grey I. E. , Vanderah T. A. , Mumme W. G. , Roth R. S. , Guzman J. , Nino J. C. , Levin I. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Equilibrium Constants from Spectrophotometric Data: Dimer Formation in Gaseous Br2.
Authors: Tellinghuisen Joel 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Designing and Tuning Properties of a Three‐Dimensional Porous Quaternary Chalcogenide Built on a Bimetallic Tetrahedral Cluster [M4Sn3S13]5‐ (M: Zn/Sn).
Authors: Wu Min , Emge Thomas J. , Huang Xiaoying , Li Jing , Zhang Yong 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The [Ti12Nb6O44]10‐ Ion — A New Type of Polyoxometalate Structure.
Authors: Ohlin C. Andre , Villa Eric M. , Fettinger James C. , Casey William H. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Hydrothermal Synthesis and Structural Characterization of Two 1‐D and 2‐D Dawson‐Based Phosphotungstates.
Authors: Zhao Jun‐Wei , Zheng Shou‐Tian , Liu Wei , Yang Guo‐Yu 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Superacid‐Catalyzed Intramolecular Cyclization Reaction of Arylcyanopropionate: Geminal Substitution Effect on Superelectrophilicity.
Authors: Nakamura Satoshi , Sugimoto Hiromichi , Ohwada Tomohiko 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Oxidative Rearrangement of Tertiary Allylic Alcohols Employing Oxoammonium Salts.
Authors: Shibuya Masatoshi , Tomizawa Masaki , Iwabuchi Yoshiharu 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Propargylic Oxidations Catalyzed by Dirhodium Caprolactamate in Water: Efficient Access to α,β‐Acetylene Ketones.
Authors: McLaughlin Emily C. , Doyle Michael P. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Oxidation of Alcohols with Molecular Oxygen Promoted by Nafion Ionomer Anchored Pyrochlore Composite at Room Temperature.
Authors: Venkatesan S. , Kumar A. Senthil , Zen J.‐M. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Expedient Synthesis and Solvent‐Dependent Oxidation Behavior of a Water‐Soluble IBX Derivative.
Authors: Kommreddy Amitha , Bowsher Michael S. , Gunna Meena R. , Botha Kirankumar , Vinod Thottumkara K. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Assisted Ruthenium‐Catalyzed C—H Bond Activation: Carboxylic Acids as Cocatalysts for Generally Applicable Direct Arylations in Apolar Solvents.
Authors: Ackermann Lutz , Vicente Ruben , Althammer Andreas 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Convenient Trimethylsilylation of Hydroxy Groups with Hexamethyldisilazane under Solvent‐Free Conditions.
Authors: Rostami Amin , Khazaei Ardeshir , Mahboubifar Marjan , Rahmati Sadegh 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Metal‐Containing Ionic Liquids as Efficient Catalysts for Hydroxymethylation in Water.
Authors: Bica Katharina , Gaertner Peter 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electrochemically Induced Henry Reaction of Nitromethane and Carbonyl Compounds.
Authors: Elinson Michail N. , Ilovaisky Alexey I. , Merkulova Valentina M. , Barba Fructuoso , Batanero Belen 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A General Route for the Synthesis of β,β‐Difluorocarboxylic Acids.
Authors: Cohen Or , Rozen Shlomo 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Uncatalyzed Strecker‐Type Reaction of N,N‐Dialkylhydrazones in Pure Water.
Authors: Marques‐Lopez Eugenia , Herrera Raquel P. , Fernandez Rosario , Lassaletta Jose M. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Aluminum Chloride Mediated Acylation of Methylenecyclobutanes. A Facile Synthetic Protocol for the Construction of Substituted Cyclopentenes.
Authors: Jiang Min , Shi Min 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Pd‐Catalyzed Asymmetric Allylic Alkylation of 2‐Substituted Cycloalkenyl Carbonates Using a Chiral Diaminophosphine Oxide: (S,RP)‐Ph‐DIAPHOX.
Authors: Jin Long , Nemoto Tetsuhiro , Nakamura Hiroshi , Hamada Yasumasa 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantioselective Hydrolysis of 1‐Arylallyl Acetates Catalyzed by Candida antarctica Lipase.
Authors: Kadnikova Ekaterina N. , Thakor Vikalp A. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantioselective and Regioselective Ruthenium‐Catalyzed Decarboxylative Etherification of Allyl Aryl Carbonates.
Authors: Austeri Martina , Linder David , Lacour Jerome 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: BF3×OEt2‐Mediated Regioselective Deacetylation of Polyacetoxyacetophenones and Its Application in the Synthesis of Natural Products.
Authors: Narender T. , Reddy K. Papi , Kumar Brijesh 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A New Synthesis of Cinnamic Acids from Aromatic Aldehydes and N,N‐Dimethylacetamide Hydrochloride.
Authors: Chiriac Constantin I. , Tanasa Fulga , Nechifor Marioara 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Novel Bifunctional Chiral Urea and Thiourea Derivatives as Organocatalysts: Enantioselective Nitro‐Michael Reaction of Malonates and Diketones.
Authors: Andres Jose M. , Manzano Ruben , Pedrosa Rafael 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Antitumor Activity of Benzils Related to Combretastatin A‐4.
Authors: Mousset Celine , Giraud Anne , Provot Olivier , Hamze Abdallah , Bignon Jerome , Liu Jian‐Miao , Thoret Sylviane , Dubois Joelle , Brion Jean‐Daniel , Alami Mouad 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Dihydroxylated Chalcone Derivatives with Diverse Substitution Patterns and Their Radical Scavenging Ability Toward DPPH Free Radicals.
Authors: Kim Beom‐Tae , O Kwang‐Joong , Chun Jae‐Chul , Hwang Ki‐Jun 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Facile Synthesis of Substituted trans‐2‐Arylcyclopropylamine Inhibitors of the Human Histone Demethylase LSD1 and Monoamine Oxidases A and B.
Authors: Gooden David M. , Schmidt Dawn M. Z. , Pollock Julie A. , Kabadi Ami M. , McCafferty Dewey G. 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Regio‐ and Stereoselective Synthesis of Indene and Benzo[b]furan Derivatives via a Pd‐Catalyzed Carboannulation of Propargyl Carbonates with Nucleophiles.
Authors: Bi Hai‐Peng , Guo Li‐Na , Gou Fa‐Rong , Duan Xin‐Hua , Liu Xue‐Xuan , Liang Yong‐Min 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: [RuCl3(H2O)n]‐Catalyzed Direct Arylations.
Authors: Ackermann Lutz , Althammer Andreas , Born Robert 
Published: September 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.