bluuebunny/crossref_metadata_2025_split huggingface dataset:
Developmental biology and tissue engineering
Authors: Marga Francoise , Neagu Adrian , Kosztin Ioan , Forgacs Gabor 
Published: January 2008

AbstractMorphogenesis implies the controlled spatial organization of cells that gives rise to tissues and organs in early embryonic development. While morphogenesis is under strict genetic control, the formation of specialized biological structures of specific shape hinges on physical processes. Tissue engineering (TE) aims at reproducing morphogenesis in the laboratory, i.e., in vitro, to fabricate replacement organs for regenerative medicine. The classical approach to generate tissues/organs is by seeding and expanding cells in appropriately shaped biocompatible scaffolds, in the hope that the maturation process will result in the desired structure. To accomplish this goal more naturally and efficiently, we set up and implemented a novel TE method that is based on principles of developmental biology and employs bioprinting, the automated delivery of cellular composites into a three‐dimensional (3D) biocompatible environment. The novel technology relies on the concept of tissue liquidity according to which multicellular aggregates composed of adhesive and motile cells behave in analogy with liquids: in particular, they fuse. We emphasize the major role played by tissue fusion in the embryo and explain how the parameters (surface tension, viscosity) that govern tissue fusion can be used both experimentally and theoretically to control and simulate the self‐assembly of cellular spheroids into 3D living structures. The experimentally observed postprinting shape evolution of tube‐ and sheet‐like constructs is presented. Computer simulations, based on a liquid model, support the idea that tissue liquidity may provide a mechanism for in vitro organ building. Birth Defects Research (Part C) 81:320–328, 2007. © 2008 Wiley‐Liss, Inc.
Synthesis, Structures and DFT Calculations on Alkaline‐Earth Metal Azide‐Crown Ether Complexes
Authors: Brown Michael D. , Davis Martin F. , Dyke John M. , Ferrante Francesco , Levason William , Ogden J. Steven , Webster Michael 
Published: January 2008

AbstractThe first examples of azide complexes of calcium, strontium or barium with crown ethers have been prepared and fully characterised, notably [Ba([18]crown‐6)(N3)2(MeOH)], [Sr([15]crown‐5)(N3)2(H2O)], [Ca([15]crown‐5)(N3)2(H2O)] and [Sr([15]crown‐5)(N3)(NO3)]. Crystal structures reveal the presence of a variety of coordination modes for the azide groups including κ1‐, μ‐1,3‐ and linkages via H‐bonded water molecules, in addition to azide ions. The [Ba([18]crown‐6)(N3)2(MeOH)]⋅1/3 MeOH contains dinuclear cations with three μ‐1,3‐NNN bridges, the first example of this type in main group chemistry. The structures obtained have been compared with molecular structures computed by density functional theory (DFT). This has allowed the effects of the crystal lattice to be investigated. A study of the MNterminal metal–azide bond length and charge densities on the metal (M) and terminal nitrogen centre (Nterminal) in these complexes has allowed the nature of the metal–azide bond to be investigated in each case. As in our earlier work on alkali metal azide‐crown ether complexes, the bonding in the alkaline‐earth complexes is believed to be predominantly ionic or ion‐dipole in character, with the differences in geometries reflecting the balance between maximising the coordination number of the metal centre, and minimising ligand–ligand repulsions.
Enantioselective Decarboxylation of β‐Keto Esters with Pd/Amino Alcohol Systems: Successive Metal Catalysis and Organocatalysis
Authors: Kukula Pavel , Matoušek Václav , Mallat Tamas , Baiker Alfons 
Published: January 2008

AbstractThe kinetics and mechanisms of one‐pot cascade reactions of racemic β‐keto esters to give chiral ketones in the presence of Pd/C‐chiral amino alcohol catalyst systems were studied. Transformation of 2‐methyl‐1‐tetralone‐2‐carboxylic acid benzyl ester (1) into 2‐methyl‐1‐tetralone (4) in the presence of Pd/C and cinchona alkaloids or ephedrine was chosen as a model reaction. After the first reaction step, the Pd‐catalysed debenzylation of 1 to afford the corresponding β‐keto acid (2), there are two possible reaction routes that may be catalysed by the chiral amino alcohol in solution or by Pd0 sites on the metal surface in cooperation with the adsorbed amino alcohol. The reaction intermediate 2 was synthesized, and the kinetics of decarboxylation were followed by NMR, UV and IR spectroscopy. The studies revealed that the role of Pd is to trigger the reaction series by deprotection of 1. The subsequent dominant reaction route from the racemic β‐keto acid 2 to the chiral ketone 4 is catalysed by the chiral amino alcohol in the liquid phase. It is shown that kinetic resolution of the diastereomeric salt of rac‐2 and the chiral amino alcohol plays a key role in the enantioselection. High enantioselectivity necessitates an amino alcohol/rac‐2 ratio of at least 2. A high ratio favours the formation of 1:1 amino alcohol/acid diastereomeric complexes, and the second amino alcohol molecule may be responsible for the enantioselective protonation of 2 in the diastereomeric complex.
Facile, One‐Step Production of Niacin (Vitamin B3) and Other Nitrogen‐Containing Pharmaceutical Chemicals with a Single‐Site Heterogeneous Catalyst
Authors: Raja Robert , Thomas John Meurig , Greenhill‐Hooper Michael , Ley Steven V. , Almeida Paz Filipe A. 
Published: January 2008

AbstractNiacin (3‐picolinic acid), which is extensively used as vitamin B3 in foodstuffs and as a cholesterol‐lowering agent, along with other oxygenated products of the picolines, 4‐methylquinoline, and a variety of pyrimidines and pyridazines, may be produced in a single‐step, environmentally benign fashion by combining single‐site, open‐structure, heterogeneous catalysts with a solid source of active oxygen, namely acetyl peroxyborate (APB), in the absence of an organic solvent. The high activities, selectivities, and the relatively mild conditions employed with this single‐site heterogeneous catalyst, coupled with ease of transport, storage, and stability of the solid oxidant, augurs well for the future use of APB in conjunction with other open‐structure, single‐site catalysts for fine‐chemical, pharmaceutical, and agrochemical applications.
Light‐Harvesting Supramolecular Porphyrin Macrocycle Accommodating a Fullerene–Tripodal Ligand
Authors: Kuramochi Yusuke , Satake Akiharu , Itou Mitsunari , Ogawa Kazuya , Araki Yasuyuki , Ito Osamu , Kobuke Yoshiaki 
Published: January 2008

AbstractTrisporphyrinatozinc(II) (1–Zn) with imidazolyl groups at both ends of the porphyrin self‐assembles exclusively into a light‐harvesting cyclic trimer (N‐(1–Zn)3) through complementary coordination of imidazolyl to zinc(II). Because only the two terminal porphyrins in 1–Zn are employed in ring formation, macrocycle N‐(1–Zn)3 leaves three uncoordinated porphyrinatozinc(II) groups as a scaffold that can accommodate ligands into the central pore. A pyridyl tripodal ligand with an appended fullerene connected through an amide linkage (C60–Tripod) was synthesized by coupling tripodal ligand 3 with pyrrolidine‐modified fullerene, and this ligand was incorporated into N‐(1–Zn)3. The binding constant for C60–Tripod in benzonitrile reached the order of 108 M−1. This value is ten times larger than those of pyridyl tetrapodal ligand 2 and tripodal ligand 3. This behavior suggests that the fullerene moiety contributes to enhance the binding of C60–Tripod in N‐(1–Zn)3. The fluorescence of N‐(1–Zn)3 was almost completely quenched (≈97 %) by complexation with C60–Tripod, without any indication of the formation of charge‐separated species or a triplet excited state of either porphyrin or fullerene in the transient absorption spectra. These observations are explained by the idea that the fullerene moiety of C60–Tripod is in direct contact with the porphyrin planes of N‐(1–Zn)3 through fullerene–porphyrin π–π interactions. Thus, C60–Tripod is accommodated in N‐(1–Zn)3 with a π–π interaction and two pyridyl coordinations. The cooperative interaction achieves a sufficiently high affinity for quantitative and specific introduction of one equivalent of tripodal guest into the antenna ring, even under dilute conditions (≈10−7 M) in polar solvents such as benzonitrile. Additionally, complete fluorescence quenching of N‐(1–Zn)3 when accommodating C60–Tripod demonstrates that all of the excitation energy collected by the nine porphyrins migrates rapidly over the macrocycle and then converges efficiently on the fullerene moiety by electron transfer.
ChemInform Abstract: Boron Cluster Cations: Transition from Planar to Cylindrical Structures.
Authors: Oger Esther , Crawford Nathan R. M. , Kelting Rebecca , Weis Patrick , Kappes Manfred M. , Ahlrichs Reinhart 
Published: January 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: High‐Pressure Synthesis and Structures of New Barium Chromium Sulfides, BaCr4S7 and Ba2Cr5S10, with New Type Face‐Sharing CrS6 Structure Units.
Authors: Fukuoka Hiroshi , Miyaki Yuji , Yamanaka Shoji 
Published: January 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: High‐Pressure δ‐Al(OH)3 and δ‐AlOOH Phases and Isostructural Hydroxides/Oxyhydroxides: New Structural Insights from High‐Resolution 1H and 27 NMR.
Authors: Xue Xianyu , Kanzaki Masami 
Published: January 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: Pressure‐Induced Splitting and Buckling of Cu—O Chains in the Low‐Dimensional Structure of SrCuO2.
Authors: Zhang Fuxiang , Wang Jianwei , Becker Udo , Lian Jie , Hu Jingzhu , Saxena Surendra , Ewing Rodney C. 
Published: January 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: Hydrogen Encapsulation in a Silicon Clathrate Type I Structure: Na5.5(H2)2.15Si46: Synthesis and Characterization.
Authors: Neiner Doinita , Okamoto Norihiko L. , Condron Cathie L. , Ramasse Quentin M. , Yu Ping , Browning Nigel D. , Kauzlarich Susan M. 
Published: January 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, Structural Characterization, and Reactivity of Organolanthanides Derived from a New Chiral Ligand, (R)‐Bis(pyrrol‐2‐ylmethyleneamino)‐1,1′‐binaphthyl.
Authors: Xiang Li , Wang Qiuwen , Song Haibin , Zi Guofu 
Published: January 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: 5,5‐Dimethyl‐2‐phenylamino‐2‐oxazoline as an Effective Chiral Auxiliary for Asymmetric Alkylations.
Authors: Le Thanh Nguyen , Nguyen Quynh Pham Bao , Kim Jae Nyoung , Kim Taek Hyeon 
Published: January 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: Reaction Between ortho‐Hydroxy Aromatic Aldehydes and Dialkyl Acetylenedicarboxylates in the Presence of Silica Gel in Solvent‐Free Conditions.
Authors: Noshiranzadeh Nader , Ramazani Ali 
Published: January 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: Diastereoselective Simmons—Smith Cyclopropanations of Allylic Amines and Carbamates.
Authors: Davies Stephen G. , Ling Kenneth B. , Roberts Paul M. , Russell Angela J. , Thomson James E. 
Published: January 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: Iron and Vanadium Containing Molybdophosphoric Acid Catalyst for Selective Oxidation of Alcohols with Molecular Oxygen.
Authors: Nagaraju P. , Pasha Nayeem , Prasad P. S. Sai , Lingaiah N. 
Published: January 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: Syntheses Based on α‐Azidooximes. Part 1. Reduction of α‐Azidooximes.
Authors: Sukhorukov A. Yu. , Semakin A. N. , Lesiv A. V. , Khomutova Yu. A. , Ioffe S. L. 
Published: January 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 E‐Diiodoalkenes: H2O2‐Activated Reaction of Alkynes with Iodine.
Authors: Terent'ev Alexander O. , Borisov Dmitry A. , Krylov Igor B. , Nikishin Gennady I. 
Published: January 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 Novel Deacylation During the Amination of Trifluoromethyl β‐Dicarbonyl Compounds.
Authors: Fioravanti Stefania , Pellacani Lucio , Ramadori Frederico , Tardella Paolo A. 
Published: January 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: Ruthenium‐Catalyzed Conversion of Oxime Ethers into Nitriles.
Authors: Anand Naveen , Owston Nathan A. , Parker Alexandra J. , Slatford Paul A. , Williams Jonathan M. J. 
Published: January 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 Preparation of HCF2CdX and HCF2ZnX via Direct Insertion into the Carbon Halogen Bond of CF2HY (Y: Br, I).
Authors: Burton Donald J. , Hartgraves Greg A. 
Published: January 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: Recyclable Hafnium(IV) Bis(perfluorooctanesulfonyl)amide Complex for Catalytic Friedel—Crafts Acylation and Prins Reaction in Fluorous Biphase System.
Authors: Hao Xiuhua , Yoshida Akihiro , Hoshi Nobuto 
Published: January 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 1,2‐Diols Ethers, Condensation Products of Glyoxal with Nitrogen‐Containing Nucleophiles. Part 1. Reaction of Cyclic Sulfites with Primary Alcohols and Glycols.
Authors: Sizova E. V. , Sizov V. V. , Tselinskii I. V. 
Published: January 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 Cleavage of Ethers in Ionic Liquid.
Authors: Cheng Lili , Aw Carlin , Ong Siew Siang , Lu Yixin 
Published: January 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: Mild and Efficient Lewis Acid Promoted Detritylation in the Synthesis of N‐Hydroxy Amides: A Concise Synthesis of (‐)‐Cobactin T.
Authors: Yang Shyh‐Ming , Lagu Bharat , Wilson Lawrence J. 
Published: January 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: Directed Hydrozirconation of Propargylic Alcohols.
Authors: Zhang Donghui , Ready Joseph M. 
Published: January 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: Poly(propylene imine) Dendrimers Functionalized with Stilbene or 1,4‐Distyrylbenzene Chromophores.
Authors: Schulz Andrea , Meier Herbert 
Published: January 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 Properties of First Representatives of Crownophanes Containing the Fluorenone and Naphthalene Fragments.
Authors: Lukyanenko N. G. , Lyapunov A. Yu. , Kirichenko T. I. 
Published: January 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: Enzyme‐Catalyzed Nucleophilic Ring Opening of Epoxides for the Preparation of Enantiopure Tertiary Alcohols.
Authors: Elenkov Maja Majeric , Hoeffken H. Wolfgang , Tang Lixia , Hauer Bernhard , Janssen Dick B. 
Published: January 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 Straightforward Stereoselective Synthesis of meso‐, (S,S)‐ and (R,R)‐2,6‐Diaminopimelic Acids from cis‐1,4‐Diacetoxycyclohept‐2‐ene.
Authors: Saito Yukako , Shinkai Takumi , Yoshimura Yuichi , Takahata Hiroki 
Published: January 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: Sequential Reactions Promoted by Manganese: Completely Stereoselective Synthesis of (E)‐α,β‐Unsaturated Amides, Ketones, Aldehydes, and Carboxylic Acids.
Authors: Concellon Jose M. , Rodriguez‐Solla Humberto , Diaz Pamela 
Published: January 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: New Synthesis of Polyfluoroalkanesulfonylureas.
Authors: Benfodda Z. , Delon L. , Guillen F. , Blancou H. 
Published: January 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: Bromination of 4‐Dichloromethyl‐4‐methylcyclohexa‐2,5‐dien‐1‐ones.
Authors: Gavrilova G. V. , Rusetskaya I. N. , Gavrilov A. A. , Trushkov I. V. , Krut'ko D. P. 
Published: January 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: An Efficient and Mild Bismuth Triflate Catalyzed Three‐Component Mannich‐Type Reaction.
Authors: Ollevier Thierry , Nadeau Etienne 
Published: January 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.