bluuebunny/crossref_metadata_2025_split huggingface dataset:
Theoretical Study on the Role of Surface Basicity and Lewis Acidity on the Etherification of Glycerol over Alkaline Earth Metal Oxides
Authors: Calatayud Monica , Ruppert Agnieszka M. , Weckhuysen Bert M. 
Published: September 2009

AbstractAlkaline earth metal oxides (MO) are catalytically active in the etherification of glycerol. Density Functional Theory (DFT) calculations have been used to examine the reactivity of glycerol with MO surfaces with M=Mg, Ca, Sr or Ba. More specifically, the optimum glycerol adsorption mode and the strength of glycerol interaction with regular MO (001) surfaces and a stepped CaO surface have been investigated and involves the interaction with acid–base surface sites. The basicity of lattice oxygen atoms is correlated with the adsorption energy: BaO (−3.02 eV) > SrO (−2.85 eV) > CaO (−2.05 eV) > MgO (−1.35 eV). The interactions have an exothermic character, that is, the more basic the alkaline earth metal oxide, the more exothermic is the adsorption process and the higher the dissociation extent. Thus, the dissociation of glycerol increases in the order: MgO (not dissociated) < CaO (partially dissociated < SrO (partially dissociated) < BaO (completely dissociated). The presence of defects is found to play a key role in the mechanism: glycerol interaction with a stepped CaO surface presents the highest adsorption energy (−3.78 eV), and the molecule is found to dissociate at the step. The calculated structural parameters are found to be in good agreement with experimental data on catalyst reactivity. Moreover, the earlier postulated reaction mechanism, which also involves the additional involvement of Lewis acid sites proved to be feasible for CaO and SrO regular surfaces, and for the stepped CaO surface. It was found that for these oxides one of the most favored adsorption modes involves a non‐dissociative adsorption of one hydroxyl group of glycerol, which as a result becomes a better leaving group. Therefore, theoretical evidence was found for the possible direct involvement of Lewis acid sites in the catalytic etherification of bio‐derived alcohols, such as glycerol, as it is anticipated that these observations can be extended to sugar alcohols as well.
Polyketide Building Blocks via Diastereoselective Nitrile Oxide Cycloadditions with Homoallylic Alcohols and Monoprotected Homoallylic Diols
Authors: Lohse‐Fraefel Nina , Carreira Erick M. 
Published: September 2009

AbstractA modular approach to Δ2‐isoxazolines, latent aldol adducts and polyketide building blocks, is reported. The magnesium‐mediated, hydroxyl‐directed method allows for the diastereoselective access to a wide variety of masked β‐hydroxy ketones, starting from readily available aliphatic and aromatic oximes, homoallylic alcohols and monoprotected homoallylic diols. The utility of the prepared Δ2‐isoxazolines as polyketide building blocks is demonstrated by their ready conversion into the corresponding β‐hydroxy ketones. The anti‐diastereoselectivity of the reaction was established by derivatization, NOE studies and comparison of known compounds. A rationale for the observed diastereoselectivity is proposed.
Oxidative Addition Reactions of Element–Hydrogen Bonds with Different Polarities to a Gallium(I) Compound
Authors: Seifert Annekathrin , Scheid Dominik , Linti Gerald , Zessin Thomas 
Published: September 2009

AbstractThe gallium(I) derivative [Ga({N(dipp)CMe}2CH)] (1; dipp=2,6‐diisopropylphenyl) undergoes facile oxidative addition reactions with various element–hydrogen bonds including NH, PH, OH, SnH, and HH bonds. This was demonstrated by its reaction with triphenyltin hydride, ethanol, water, diethylamine, diphenylphosphane, and dihydrogen. All products were characterized by means of single‐crystal X‐ray structure determination, NMR spectroscopy, IR spectroscopy, and mass spectrometry.
Synthesis of Early‐Transition‐Metal Carbide and Nitride Nanoparticles through the Urea Route and Their Use as Alkylation Catalysts
Authors: Yao Weitang , Makowski Philippe , Giordano Cristina , Goettmann Frédéric 
Published: September 2009

AbstractThe use of urea as either a carbon or a nitrogen source enabled the synthesis of various early‐transition‐metal nitride and carbide nanoparticles (TiN, NbN, Mo2N, W2N, NbCxN1−x, Mo2C and WC). The ability of these particles to promote alkylation reactions with alcohols was tested on benzyl alcohol and acetophenone at 150 °C for 20 h in xylene. Group IV and V ceramics proved to be able to catalyse the formation of 1,3‐diphenyl propenone, whereas group VI ceramics showed a tendency to promote the Friedel–Crafts‐type reaction of benzyl alcohol on xylene (the solvent). TiN featured the highest activity for the alkylation of ketones and was further tested for more difficult alkylations. Group VI ceramics were further investigated as catalysts for the Friedel–Crafts‐type alkylation of aromatics with activated alcohols. Interestingly, even hexanol could be effectively used for these reactions.
Regioselective Arene Functionalization: Simple Substitution of Carboxylate by Alkyl Groups
Authors: Krüger Tobias , Vorndran Katja , Linker Torsten 
Published: September 2009

AbstractArenes with various alkyl side‐chains were synthesized in high yields and excellent regioselectivities. Starting from toluic and naphthoic acids, the carboxylate group was conveniently substituted by alkyl halides by Birch reduction and subsequent decarbonylation. The method is characterized by inexpensive starting materials and reagents, and methylation of arenes was realized. Besides simple alkyl substituents, the scope of arene functionalization was extended by benzyl, fluoro, amino, and ester groups. We were able to control the alkylation of 1‐naphthoic acid during Birch reduction by the addition of tert‐butanol. This allowed the regioselective synthesis of mono and bis‐substituted naphthalenes from the same starting material.
ChemInform Abstract: A Discovery of Tetravalent Ge4+ Ion Conduction in Solids.
Authors: Nunotani Naoyoshi , Tamura Shinji , Imanaka Nobuhito 
Published: September 2009

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 Trace Phosphide Tellurides: The System Ce/Te/P.
Authors: Philipp Frauke , Pinkert Katja , Schmidt Peer 
Published: September 2009

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 Enantiopure Cyclophane‐Type Imidazole with no Central but Planar Chirality.
Authors: Ishida Yasuhiro , Iwasa Eriko , Matsuoka Yuki , Miyauchi Hiroyuki , Saigo Kazuhiko 
Published: September 2009

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: Cationic Rhodium(I)/H8‐binap Complex Catalyzed [2 + 2 + 2] Cycloadditions of 1,6‐ and 1,7‐Diynes with Carbonyl Compounds.
Authors: Otake Yousuke , Tanaka Rie , Tanaka Ken 
Published: September 2009

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 Antimicrobial Activity of Some New Cyanopyridine and Cyanopyrans Towards Mycobacterium tuberculosis and Other Microorganisms.
Authors: Vyas D. H. , Tala S. D. , Akbari J. D. , Dhaduk M. F. , Joshi K. A. , Joshi H. S. 
Published: September 2009

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: PEG‐SO3H as Catalyst for the Beckmann Rearrangement and Dehydration of Oximes.
Authors: Wang Xi Cun , Li Lei , Quan Zheng Jun , Gong Hai Peng , Ye He Lin , Cao Xiao Feng 
Published: September 2009

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 Transition Metal Free Protocol for the Transfer Hydrogenation of Ketones as a Continuous Flow Process.
Authors: Sedelmeier Joerg , Ley Steven V. , Baxendale Ian R. 
Published: September 2009

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: Vilsmeier—Haack Bromination of Aromatic Compounds with KBr and N‐Bromosuccinimide under Solvent‐Free Conditions.
Authors: Chakradhar A. , Roopa R. , Rajanna K. C. , Saiprakash P. K. 
Published: September 2009

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: Sulfilimines and Sulfoximines by Reaction of Nitriles with Perfluoroalkyl Sulfoxides.
Authors: Mace Yohan , Urban Celine , Pradet Charlotte , Marrot Jerome , Blazejewski Jean‐Claude , Magnier Emmanuel 
Published: September 2009

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: TfOH‐Catalyzed Intramolecular Alkyne—Ketone Metathesis Leading to Highly Substituted Five‐Membered Cyclic Enones.
Authors: Jin Tienan , Yang Fan , Liu Chunli , Yamamoto Yoshinori 
Published: September 2009

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 Protocol for Masking and Unmasking Vicinal Hydroxyl and Formyl Groups in 6‐Hydroxyarene‐1,3‐dicarboxaldehydes.
Authors: Sashidhara Koneni V. , Rosaiah Jammikuntla N. , Kumar Abdhesh 
Published: September 2009

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 Synthesis of Methyl Ketones Based on the Blaise Reaction.
Authors: Rao H. Surya Prakash , Padmavathy K. , Vasantham K. , Rafi Shaik 
Published: September 2009

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: Development of New DMAP‐Related Organocatalysts for Use in the Michael Addition Reaction of β‐Ketoesters in Water.
Authors: Ko Kyungmin , Nakano Keiji , Watanabe Shigeru , Ichikawa Yoshiyasu , Kotsuki Hiyoshizo 
Published: September 2009

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: Gold‐Catalyzed Cyclizations of 1,6‐Diynes.
Authors: Sperger Christian , Fiksdahl Anne 
Published: September 2009

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 N‐Heterocyclic Carbene Catalysts for Selective Reduction of Nitriles to Primary Amines.
Authors: Addis Daniele , Enthaler Stephan , Junge Kathrin , Wendt Bianca , Beller Matthias 
Published: September 2009

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: Simple, Efficient Protocols for the Pd‐Catalyzed Cross‐Coupling Reaction of Aryl Chlorides and Dimethylamine.
Authors: Lee Brian K. , Biscoe Mark R. , Buchwald Stephen L. 
Published: September 2009

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—Broensted Acid Cooperative Catalysis for Asymmetric Reductive Amination.
Authors: Li Chaoqun , Villa‐Marcos Barbara , Xiao Jianliang 
Published: September 2009

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: Chiral Phosphine‐Catalyzed Regio‐ and Enantioselective Allylic Amination of Morita—Baylis—Hillman Acetates.
Authors: Ma Guang‐Ning , Cao Shu‐Hua , Shi Min 
Published: September 2009

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: Chiral Arylaminophosphonium Barfates as a New Class of Charged Broensted Acid for the Enantioselective Activation of Nonionic Lewis Bases.
Authors: Uraguchi Daisuke , Nakashima Daisuke , Ooi Takashi 
Published: September 2009

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 Carbonyl Reverse Prenylation from the Alcohol or Aldehyde Oxidation Level Employing 1,1‐Dimethylallene as the Prenyl Donor.
Authors: Han Soo Bong , Kim In Su , Han Hoon , Krische Michael J. 
Published: September 2009

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: Tris‐(2‐aminoethyl)amine as a Novel and Efficient Tripod Ligand for a Copper(I)‐Catalyzed C—O Coupling Reaction.
Authors: Jogdand Nivrutti R. , Shingate Bapurao B. , Shingare Murlidhar S. 
Published: September 2009

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: Gold Supported on Hydroxyapatite as a Versatile Multifunctional Catalyst for the Direct Tandem Synthesis of Imines and Oximes.
Authors: Sun Hao , Su Fang‐Zheng , Ni Ji , Cao Yong , He He‐Yong , Fan Kang‐Nian 
Published: September 2009

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: Reactions of Morita—Baylis—Hillman Acetates with Huisgen Zwitterions: A Novel Strategy for the Synthesis of β‐Amino Acid Derivatives.
Authors: Jose Anu , Paul Rony Rajan , Mohan Resmi , Mathew Smitha C. , Biju A. T. , Suresh Eringathodi , Nair Vijay 
Published: September 2009

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 α,β‐Unsaturated Amide via Phosphonium Ylide.
Authors: Jiang Shilei , Yang Kefeng , Yu Xiaochun 
Published: September 2009

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 Expeditious Synthesis of Cyanohydrin Trimethylsilyl Ethers Using Tetraethylammonium 2‐(Carbamoyl)benzoate as a Bifunctional Organocatalyst.
Authors: Dekamin Mohammad G. , Sagheb‐Asl Solmaz , Naimi‐Jamal M. Reza 
Published: September 2009

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: Transition‐Metal‐Catalyzed Regioselective Aroyl‐ and Trifluoro‐acetylthiolation of Alkynes Using Thioesters.
Authors: Minami Yasunori , Kuniyasu Hitoshi , Miyafuji Kiyoshi , Kambe Nobuaki 
Published: September 2009

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 2,2′‐Arylmethylene Bis(3‐hydroxy‐5,5‐dimethyl‐2‐cyclohexene‐1‐one) in Aqueous Medium at Room Temperature.
Authors: Bayat Mohammad , Imanieh Hossien , Hossieni Seydeh Hajar 
Published: September 2009

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: Chiral Iron Complex Catalyzed Enantioselective Oxidation of Racemic Benzoins.
Authors: Muthupandi Pandi , Alamsetti Santosh Kumar , Sekar Govindasamy 
Published: September 2009

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: Lithium Diisopropylamide Mediated Carbolithiation Reactions of Vinylidenecyclopropanes and Further Transformations of the Adducts.
Authors: Lu Jian‐Mei , Shi Min 
Published: September 2009

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: Direct Arylation of Cyclic Enamides via Pd(II)‐Catalyzed C—H Activation.
Authors: Zhou Hai , Chung Wan‐Jun , Xu Yun‐He , Loh Teck‐Peng 
Published: September 2009

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 S,R‐Alternating Octinaphthalenes.
Authors: Takaishi Kazuto , Sue Daisuke , Kuwahara Shunsuke , Harada Nobuyuki , Kawabata Takeo , Tsubaki Kazunori 
Published: September 2009

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‐Bond‐Assisted Epoxidation of Homoallylic and Allylic Alcohols with Hydrogen Peroxide Catalyzed by Selenium‐Containing Dinuclear Peroxotungstate.
Authors: Kamata Keigo , Hirano Tomohisa , Kuzuya Shinjiro , Mizuno Noritaka 
Published: September 2009

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: Aziridines as Intermediates in Diversity‐Oriented Syntheses of Alkaloids.
Authors: Taylor Alexander M. , Schreiber Stuart L. 
Published: September 2009

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: Preparation of Functionalized Monobactams from Pyridones.
Authors: Adamo Mauro F. A. , Disetti Paolo , Piras Linda 
Published: September 2009

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.