bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structure De L'Acide Zanhagenique, Triterpenoide Nouveau Isole De Zanha Africana
Authors: Kapundu Mpuza , Warin Roger , Delaude Clément 
Published: September 2010

AbstractThe root's bark saponin of Zanha africana yields on hydrolysis medicagenic acid, zanhic acid and a novel triterpene, for which we propose the name: zanhagenic acid. The structure of this acid determinated using spectral means including 2D NMR is: 2β, 3β, 16 α‐trihydroxyolean, 13 (18)‐ene, 23, 28‐dioic.
Etude Conformationnelle De 2,3,5,6,7,8‐Hexahydro‐4H‐Benzopyranne‐4‐Ones, A L'Aide De La Mecanique Moleculaire
Authors: Dolmazon R. , Albrand M. , Pollet P. 
Published: September 2010

AbstractThe conformational study of 2,3,5,6,7,8‐hexahydro‐4H‐benzopyran‐4‐ones, using molecular mechanics, shows that the more stable conformations contain a half‐chair cyclohexenic ring and a half‐chair strongly distorted toward a sofa form for the dihydropyran‐4‐one ring. The interconversion barrier of 3,4‐dihydro‐2H‐pyran‐4‐one is lower than that for cyclohexene (5 versus 6.1 Kcal/mol). This work is ratified by reasonable correlation between experimental data and empirical force‐field calculations.
Reaction De Diverses 2‐Arylidene‐Benzofuran‐3‐Ones Avec La Diphenylnitrilimine. Une Nouvelle Synthese D'Ortho‐Hydroxybenzoylpyrazoles
Authors: M'Sadek Moncef , Rammah Mohamed , Schmitt Gérard , Vebrel Joël 
Published: September 2010

AbstractA new synthesis of ortho‐hydroxybenzoylpyrazoles in one step from 2‐arylidene‐benzofuran‐3‐ones, via cycloaddition route and a adduct rearrangement, is recorded.
Regiochimie De La Cycloaddition Des 2‐Azadienes Disilyles Avec Les Derives De La 1,4‐Naphtoquinone
Authors: Bouammali B. , Pautet F. , Fillion H. 
Published: September 2010

AbstractThe regiochemistry of the Diels‐Alder reaction between disilylated 2‐aza‐1,3‐butadienes and substituted naphthoquinones is investigated.
Application of Biochemical Methods in Enantioselective Synthesis of Bioactive Natural Products
Authors: Mori Kenji 
Published: September 2010

AbstractEnzymes as well as yeasts were used in enantioselective syntheses of bioregulators such as hormones and semiochemicals. Lipases and esterases were employed in achieving optical resolution, conversion of meso‐compounds to optically active compounds, and macrolactonization. Lactase effected glucosidation of a phenolic hydroxy ketone without any protection of the functional groups. Yeasts provided a variety of optically active hydroxy esters and ketones, which served as versatile non‐racemic chiral building blocks.
Acyclic Diastereoselective Synthesis Using Functionalized Thiazoles. Routes to Carbohydrates and Related Natural Products
Authors: Dondoni Alessandro 
Published: September 2010

AbstractNew synthetic routes to chiral polyhydroxylated aldehydes from lower terms employing 2‐substituted thiazoles as homologating reagents are described. In all cases the thiazole ring serves as a convenient formyl group equivalent.
Chemoselectivity Reversals in Quinoxalines: The Reaction of 5‐Chloro‐6‐Nitroquinoxaline with Nucleophiles
Authors: Nasielski J. , Moucheron C. , Nasielski‐Hinkens R. 
Published: September 2010

Abstract5‐Chloro‐6‐nitroquinoxaline 2, made in six steps from 2,3‐dichloronitro‐benzene, reacts 1) with piperidine to give 6‐nitro‐5‐piperidinoquinoxaline as the only product; 2) with methoxide to give a 95:5 ratio of 5‐methoxy‐6‐nitro‐ and 5‐chloro‐6‐methoxy‐quinoxaline; 3) with p‐thiocresolate to give the disubstitution product without showing any monosubstitution product.
Recent Advances in Pyridazine Chemistry
Authors: Heinisch Gottfried 
Published: September 2010

AbstractEfficient syntheses of a variety of so far not accessible, monosubstituted or vicinally disubstituted 1,2‐diazine derivatives are presented. The versatility of these compounds for syntheses of various polyaza bicyclic and tricyclic systems is demonstrated. In addition, a series of surprising reactivities observed (including ring contraction, dismutation, tele‐substitution, intramolecular SN‐reactions etc.) are discussed.
Environmental Effects on the Fluorescence of the Reaction Products of 2,3‐Diphenylquinolizinium Bromide and Amines
Authors: Martin M. A. , Menéndez J. C. , Lerner D. A. , Del Castillo B. 
Published: September 2010

Abstract1‐Piperidino‐4‐(4′,5′‐diphenyl‐2′‐pyridyl)‐1,3‐butadiene 2 (Figure 1) has been synthesized from 2,3‐diphenylquinolizinium bromide 1 and piperidine. The influence of solvent properties and pH on the absorption and fluorescence spectra was studied.
The Structure and Solid State Conformation of (E)‐(9R,10R)‐9, 10‐Epoxy‐17β‐Hydroxy 4A‐Oxa‐A‐Homo‐5,10:8,9‐Disecoandrost‐3‐Ene‐5,8‐Dione Acetate
Authors: Tinant B. , Declercq J. P. , Bondarenko‐Gheorghiu L. , Pavlovic V. , Lorenc L. , Mihailovic M. Lj. 
Published: September 2010

AbstractThe molecular structure of the title compound, a 15‐membered 9,10‐epoxy‐3‐en‐4‐ol lactone, which is an important intermediate in the reaction sequence correlating steroid compounds with prostaglandin‐like derivatives, was determined by X‐ray analysis. The (E) stereochemistry around the double bond and the trans‐(9R,10R)‐configuration at the oxirane ring are established.
Synthese De Quelques Spiro[Indoline‐Naphtoxazines] Et Spiro[Indoline‐Pyridobenzoxazines] Photochromiques. Application De La Methodologie De La Recherche Experimentale
Authors: Pottier E. , Sergent M. , Luu R. Phan Tan , Guglielmetti R. 
Published: September 2010

AbstractSome spiro[indoline‐naphthoxazines] I and spiro[indoline‐pyridobenzoxazines] II substituted by different groups were synthesized in order to evaluate their photochromic properties1 and to optimize the preparation of spiroheterocyclic systems. In addition, some spiro[indoline‐naphthopyrans] III were also prepared as reference compounds. Their physical and spectroscopic characteristics (UV, 1H and 13C NMR) were determined. A study using the experimental design methodology allowed to point out the most important factors for improving the reaction yields.
Syntheses De Nouveaux Acides Tetrathiafulvalenecarboxyliques Et De Leurs Esters Methyliques
Authors: Mora Henri , Fabre Jean‐Marc , Giral Louis , Montginoul Claude 
Published: September 2010

AbstractDifferent methylated tetrathiafulvalenecarboxylic acids are synthesized by a two or three steps procedure. The methylated tetrathiafulvalene species is lithiated using an equimolar amount of n‐BuLi at −80°C. The lithiated compound is then either carbonated producing new acids 2 to 4, or treated with methylchloroformiate. The monoesters 9, 11 and 13 obtained are easily characterized by mass spectroscopy and then converted into acids 2 to 4 by saponification. New diesters 10 and 12 are also synthetized and characterized.
Etude Par Photolyse‐Eclair De La Photodegradation Sensibilisee De Spiro (Indoline‐Pyranes) Et De Spiro (Indoline‐Oxazines) Photochromiques
Authors: Eloy Dominique , Escaffre Pascale , Gautron René , Jardon Pierre 
Published: September 2010

AbstractThe photodegradation and the “colorability” of photochromic spiro (indoline‐pyrans) and spiro (indoline‐oxazines) have been made by repeated flashes in solution open to the air. The photosensitization proceeds by triplet‐triplet energy transfert. For hight ratios photosensitizer/photochrome. (»100), the quenching by oxygen has no influence on the “colorability” which like that is optimized. The sensitized photodegradation is very important with a lifetime Vo about 3‐5 flashes whereas for the spirooxazines unsensitized Vo exceeds several thousands. This study enhances the hypothesis describing the photodegradation process of these molecules mainly via the triplet state.
Novel Syntheses of Heterocycles with N‐(1‐Haloalkyl)Azinium Halides. Part 6. Preparation of 2,3,4,5,10,11‐Hexahydro‐1H‐Dibenzo[b,e][1,4]Diazepin‐1‐Ones
Authors: Vanden Eynde J.‐J. , Mayence A. , Maquestiau A. , Anders E. 
Published: September 2010

AbstractConversion of aldehydes into N‐(1‐chloroalkyl) pyridinium chlorides (by means of pyridine and thionyl chloride) and further reaction with 3‐(2‐aminophenyl)amino‐5,5‐dimethyl‐2‐cyclohexenone provide a novel and efficient route to the title compounds.
Synthesis of 1,2,4‐Triazolo[4,3‐d][1,2,4]Triazepines By 1,3‐Dipolar Cycloaddition
Authors: El Messaoudi M. , Hasnaoui A. , El Mouhtadi M. , Lavergne J.‐P. 
Published: September 2010

AbstractThe reaction of N‐aryl‐C‐ethoxycarbonyl nitrilimines with [1,2,4]triazepin‐3,5‐dithione leads to title compounds. The 1,3‐dipolar cycloaddition is completely peri and regioselective. The preferred orientation of addition is predicted correctly by AM1 calculation.
Synthese De Nouveaux Systemes Heterocycliques: Les Pyrazolo[1,5,4‐Ef]Triazolo[3,4‐a][1,5]Benzodiazepines
Authors: Benchidmi M. , Essassi E. M. , Ibnmansour A. 
Published: September 2010

AbstractThe synthesis of new pyrazolo [1,5,4‐ef] triazolo [3,4‐a] [1,5] benzodiazepines have been described. Hydrazinolysis of pyrazolobenzodiazepinethiones leads to 7‐pyrazolylamino indazole.
Disproportionation Kinetics of N‐Chloromethylamine and N‐Chloroethylamine
Authors: Antelo J. M. , Arce F. , Parajó M. , Rodríguez P. 
Published: September 2010

AbstractThe kinetics of disproportionation of N‐Cl‐methylamine and N‐Cl‐ethylamine in water were studied at acid pH. Its disproportionation and protonation constants and the coefficients of absorption of N,N‐dichloramines are calculated and the mechanism of its disproportionation is discussed.
Rôle de Divers Paramètres sur La Cinétique de Croissance de Particules de Silice Par Hydrolyse Ammoniacale de Si(OC2H5)4
Authors: El Rhess Essaïd , El Bakali Idriss , Mercier René 
Published: September 2010

AbstractFour independent parameters: solvent (ROH, R = CH3, C2H5, C3H7, n‐C4H9); NH3 and H2O concentrations and temperature have been varied and consequently the final diameter of silica particles determined. The bigger the solvent, the larger the particles (210 nm : CH3OH‐550 nm : butanol). Increasing H2O and NH3 contents lead to an increase of the diameter. Following both the particle size (MET) and the weight evolution of silica as time enables to prove that Ostwald ripening does not occur, since the number of particles does not decrease during the growing. Measurements at 20, 30, 40°C give an Arrhenius law relating the speed rate and the temperature, the activation energy being 3.5 Kcal/mole. Raising temperature increases the kinetics as well as the nuclei generation, so that smaller homodisperse particles can be obtained (ø ∼ 120 nm at 20°C to 70 nm at 40°C in C2H5OH).
Effects of Sulfidation and Synergism in Hydrodechlorination of o‐Dichlorobenzene Over NiMo/Alumina Catalyst
Authors: Novák Michal , Zdražil Miroslav 
Published: September 2010

AbstractHydrodechlorination of o‐dichlorobenzene was studied in the gas phase at 300°C and 2 MPa over reduced and sulfided Nl, Mo and NiMo catalysts supported on alumina. The work was related to disposal of chlorinated organic wastes containing sulfur impurities. The effect of sulfidation on activity of Ni, Mo and NiMo catalysts was different: the ratio of the activities of the sulfided and unsulfided forms was 0.3, 1.7 and 2.2, respectively. Positive synergism in activity between Ni and Mo was observed with sulfided NiMo catalyst, the NiMo sample being three times more active than the sum of activities of Ni and Mo samples. Reduced catalysts did not exhibit synergism. Chlorobenzene was observed as an intermediate over all catalysts. The selectivity to the intermediate was decreased by presulfidation of the catalyst; for instance the maximum conversion to chlorobenzene at 300°C was 40 and 17% for non–sulfided and sulfided catalyst, respectively. The selectivity to intermediate over sulfided NiMo catalyst increased with decreasing temperature from 300 to 250°C and was not influenced by decrease of pressure from 2 to 1 MPa.
Synthesis and Reactivity of Tricarbonyl(4‐Methoxy‐1‐Methylpentadienyl)Iron(+1) Cation
Authors: Donaldson William A. , Jin Myung‐Jong 
Published: September 2010

AbstractThe title cation 2, prepared by protonation of (5‐methoxy‐3,5‐hexadien‐2‐ol)Fe(CO)3, reacts regio‐ and stereospecifically with allyl‐TMS, CH3OH, and Ph3P.
Conductance Studies of Silver(I) Salts in Water‐Pyridine Mixtures
Authors: Kalidas C. , Rajendran G. 
Published: September 2010

AbstractThe conductance behaviour of silver(I) perchlorate and bromate has been studied in water‐pyridine mixtures over the complete range of solvent compositions at 30°C. The sharp decrease of Walden product of silver ion up to 40 wt% pyridine has been ascribed to selective solvation by pyridine while a similar decrease in the initial stages of addition of water (starting from pure pyridine region) to an infinitely dilute solution of anions in pyridine was explained in terms of selective hydration of anions.
Étude Infrarouge du Pyridoxal Isonicotinoyle Hydrazone Et de Composes Analogues
Authors: Colonna C. , Cossé‐Barbi A. , Massat A. , Ben Abdelmoumene R. , Doucet J. P. 
Published: September 2010

AbstractInfrared spectra have been obtained for pyridoxal isonicotinoyl hydrazone, pyridoxal benzoyl hydrazone, salicylaldehyde isonicotinoyl hydrazone and salicylaldehyde benzoyl hydrazone. Vibrational assignments are proposed mainly in the 2000‐1200 cm−1 region. Evidence is given that a intramolecular bond exists between the phenolic hydroxyl and the nitrogen of imine group. Trans amide III band located near 1550 cm−1 presents a drastic shift from usual results (more than 50 cm−1). Conformational equilibrium is discussed with AM1 and ab‐initio methods. IR and NMR (NOE measurements) studies show that one conformation seems to be predominant.
Réactivité Photochimique En Solution de 1,5‐Diazodiazepine‐2‐Ones
Authors: Achour Redouane , Essassi El Mokhtar , Zniber Rachid , Desvergne Jean‐Pierre , Bouas‐Laurent Henri 
Published: September 2010

AbstractA study of the photoreactivity of eight 1,5‐benzodiazepine‐2‐one derivatives was performed in degassed methanol (conc < 10 −2 M). These compounds were found to be photoreactive only when irradiation vas conducted through quartz vessels with very low conversion quantum yields (ϕR < 10−4. Seven of these compounds are not fluorescent at room temperature but luminescent in rigid matrix (methanol glass) at 77K. It was shown that compound 3 (with a phenyl group on position 4) gives two major photoproducts resulting of the α‐scission of the carbonyl group.
Possible Substitution Mechanisms for Sodium and Carbonate in Calciumhydroxyapatite
Authors: De Maeyer Erna A. P. , Verbeeck Ronald M. H. 
Published: September 2010

AbstractOn the basis of sterical and electrostatical arguments, it is deduced that the stoichiometry of Na+‐ and CO32‐‐containing calciumhydroxyapatite can be accounted for by 6 substitution mechanismsmagnified imagewhere Vxstands for a vacancy in the X‐sublattice. It is shown that every mechanism proposed in the literature up to now can be related to these fundamental mechanisms, or to a linear combination of some of them, in this respect, these 6 mechanisms offer an indispensable basis for a systematic derivation of the mechanisms that account for the Na+‐ and CO32‐‐incorporation in some particular apatites. The contributions of each of these mechanisms should be estimated on the basis of a thorough chemical as well as physical analysis of the samples.
1,3‐Dipolar cycloaddition reactions of some 3‐aryl‐phthalazinium‐1‐olates
Authors: Çelebi N. , Türker L. 
Published: September 2010

AbstractThe participation of halogen substituted 3‐aryl‐phthalazinium‐1‐olates in cycloaddition reactions were studied with various olefinic and acetylenic dipolarophiles. The betaines gave the expected cycloadducts with vinyl acetate, vinyl phenyl ether, and vinyl phenyl sulfide. However, two isomeric products were obtained with diethyl acetylenedicarboxylate. One of them was the normal expected cycloadduct and the other one was the rearranged cycloadduct. On the other hand, reactions with phenyl acetylene produced only the rearranged cycloadducts.
Ruthenium–Indenylidene Olefin Metathesis Catalyst with Enhanced Thermal Stability
Authors: Kabro Anzhelika , Roisnel Thierry , Fischmeister Cédric , Bruneau Christian 
Published: September 2010

AbstractTwo new ruthenium complexes bearing a bidentate (κ2O,C)‐isopropoxy–indenylidene ligand and a PPh3 (9) or PCy3 (10, Cy=cyclohexyl) ligand have been synthesized and fully characterized by 1H and 13C NMR spectroscopy and X‐ray crystallography. Complex 10 displays a very high thermal stability with a half life of six days at 110 °C in [D8]toluene. Complex 10 was evaluated in various ring‐closing metathesis reactions and ring‐opening metathesis polymerization of dicyclopentadiene, in which it showed a latent behavior with low activity at room temperature and high activity upon thermal activation.
ChemInform Abstract: Ag6Mo2O7F3Cl: A New Silver Cathode Material for Enhanced ICD Primary Lithium Batteries.
Authors: Sauvage F. , Bodenez V. , Tarascon J.‐M. , Poeppelmeier K. R. 
Published: September 2010

AbstractThe title compound is hydrothermally prepared from a mixture of Ag2O, MoO3, 4‐hydroxypyridine, HF, HCl, and H2O in the molar ratio of 2:2:5:30:4:4 (autoclave, 150 °C, 24 h, 72% yield).
ChemInform Abstract: Fabrication and Visible Light Photocatalytic Activity of a Novel Ag/TiO2‐xNx Nanocatalyst.
Authors: Virkutyte Jurate , Varma Rajender S. 
Published: September 2010

AbstractA facile one‐pot synthesis of guanidine‐doped TiO2 nanoparticles with a silver deposit is reported.
ChemInform Abstract: XeF2 Coordination to a Halogen Center; Raman Spectra (n = 1, 2) and X‐Ray Crystal Structures (n = 2) of [BrOF2][AsF6]·nXeF2 and [XOF2][AsF6] (X: Cl, Br).
Authors: Brock David S. , Casalis de Pury Jonathan J. , Mercier Helene P. A. , Schrobilgen Gary J. , Silvi Bernard 
Published: September 2010

AbstractCompound (IV) crystallizes in the space group P21/3 with Z = 4 and [ClOF2][AsF6] in the space group Pna2/1 with Z = 4.
ChemInform Abstract: Synthesis and Structural Characterization of Molecular Dy(III) and Er(III) Tetra‐Carbonates.
Authors: Goff George S. , Cisneros Michael R. , Kluk Chandra , Williamson Kevin , Scott Brian , Reilly Sean , Runde Wolfgang 
Published: September 2010

AbstractSingle crystals of [C(NH2)3]5 [Er(CO3)4]·11H2O (I) and [C(NH2)3]4 [Dy(CO3)4(H2O)] (H3O)·13H2O (II) are prepared by evaporation at 3 °C of aqueous solutions of Ln(NO3)3 (Ln: Er, Dy) and guanidinium carbonate.
ChemInform Abstract: Thermal, Magnetic, Electronic, and Superconducting Properties of Rare‐Earth Metal Pentagermanides REGe5 (RE: La, Nd, Sm, Gd) and Synthesis of TbGe5.
Authors: Meier Katrin , Cardoso‐Gil Raul , Schnelle Walter , Rosner Helge , Burkhardt Ulrich , Schwarz Ulrich 
Published: September 2010

AbstractThe new compound TbGe5 is obtained from a stoichiometric mixture of Tb and Ge under high‐pressure, high‐temperature conditions (8.3 GPa, 820 K, 9 h).
ChemInform Abstract: Triniobiumoctabromide, Nb3Br8, Revisited.
Authors: Habermehl Katja , Meyer Gerd 
Published: September 2010

AbstractSingle crystals of Nb3Br8 are prepared by reaction of NbBr5 (obtained from Nb powder and bromine in a sealed Nb ampule at 300 °C) with the wall of the Nb reaction vessel at 800 °C for 2 d (25% yield).
ChemInform Abstract: Simplified Synthesis and Structural Study of {Ta6Br12} Clusters.
Authors: Sokolov Maxim N. , Abramov Pavel A. , Mikhailov Maxim A. , Peresypkina Eugenia V. , Virovets Alexander V. , Fedin Vladimir P. 
Published: September 2010

AbstractA simple and straightforward method for the preparation of Ta6Br12 cluster compounds is described, The structures of (III) (cubic, space group Fd$\bar 3$m, Z = 8), (IV) (triclinic, P$\bar 1$, Z = 2), (V) (triclinic, P$\bar 1$, Z = 2), and (VI) (orthorhombic, Cmca, Z = 4) are determined by single crystal XRD.
ChemInform Abstract: Crystal Chemistry of the Potassium and Rubidium Uranyl Borate Families Derived from Boric Acid Fluxes.
Authors: Wang Shuao , Alekseev Evgeny V. , Stritzinger Jared T. , Depmeier Wulf , Albrecht‐Schmitt Thomas E. 
Published: September 2010

AbstractThe crystal structures of (IV), (VI), (VIII), and (IX) are determined by single crystal XRD.
ChemInform Abstract: Uranium(VI) Tetraoxido Core Coordinated by Bidentate Nitrate.
Authors: Unruh Daniel K. , Baranay Michelle , Baranay Melissa , Burns Peter C. 
Published: September 2010

AbstractThe structures of (III) (orthorhombic, space group Pbca, Z = 8) and (V) (Pbca, Z = 4) are determined by single crystal XRD.
ChemInform Abstract: Synthesis, Crystal Structure, and Characterization of a New Metal Borophosphate: PbII4{Co2 [B(OH)2P2O8] (PO4)2}Cl.
Authors: Yang Miao , Chen Peng , Welz‐Biermann Urs 
Published: September 2010

AbstractTitle compound (III) crystallizes in the trigonal space group R$\bar 3$c with Z = 18 (single crystal XRD).
ChemInform Abstract: (H2en)2Cu8Sn3S12: A Trigonal CuS3‐Based Open‐Framework Sulfide with Interesting Ion‐Exchange Properties.
Authors: Zhang Ren‐Chun , Yao Hua‐Gang , Ji Shou‐Hua , Liu Mei‐Chen , Ji Min , An Yong‐Lin 
Published: September 2010

AbstractThe title compound is synthesized solvothermally by reaction of Sn, Cu, and S in ethylenediamine (autoclave, 145 °C, 7 d, 47% yield).
ChemInform Abstract: The First Nonaselenium Ring.
Authors: Demchenko Pavlo Yu. , Gladyshevskii Roman E. , Volkov Sergei V. , Yanko Oleg G. , Kharkova Lyudmila B. , Fokina Zoya A. , Fokin Andrey A. 
Published: September 2010

AbstractRh2Se9Cl6 is synthesized by heating RhCl3·4H2O with excess Se2Cl2 (L‐shaped glass reactor, 100 °C, 180 h, 90% yield).
ChemInform Abstract: CaCu3Pt4O12: The First Perovskite with the B Site Fully Occupied by Pt4+.
Authors: Yamada Ikuya , et al. et al. 
Published: September 2010

AbstractThe new title compound is prepared by reaction of a stoichiometric mixture of CaO, CuO, and PtO2 under high‐pressure/high‐temperature conditions (gold capsule, 12 GPa, 1250 °C, 30 min).
ChemInform Abstract: Immunosuppressive Resveratrol Aneuploids from Hopea chinensis
Authors: Ge Hui Ming , Yang Wen Hao , Shen Yan , Jiang Nan , Guo Zhi Kai , Luo Qiong , Xu Qiang , Ma Jing , Tan Ren Xiang 
Published: September 2010

AbstractIn addition to the title compounds (I) and (II), the polyphenol diptoindonesine G (III) is isolated from the ethanol extract of H.
ChemInform Abstract: Synthesis of Novel H8‐Binaphthol‐Based Chiral Receptors and Their Applications in Enantioselective Recognition of 1,2‐Amino Alcohols and Chirality Conversion of L‐Amino Acids to D‐Amino Acids.
Authors: Jung Hyein , Nandhakumar Raju , Yoon Hoe‐Jin , Lee Sang‐gi , Kim Kwan Mook 
Published: September 2010

AbstractChiral binaphthol‐based receptors (I) are prepared for the use in enantioselective recognition of 1,2‐amino alcohols and for the conversion of L‐amino acids to D‐amino acids.
ChemInform Abstract: Asymmetric Synthesis of New Chiral β‐Amino Acid Derivatives by Mannich‐Type Reactions of Chiral N‐Sulfinyl Imidates with N‐Tosyl Aldimines.
Authors: Colpaert Filip , Mangelinckx Sven , De Kimpe Norbert 
Published: September 2010

AbstractNew chiral β‐(sulfonylamino)sulfinylimidates (III) are formed as new chiral β‐amino ester equivalents in high overall yield and excellent diastereomeric excess via anti‐selective addition reactions of N‐sulfinyl imidates across N‐tosyl aldimines.
ChemInform Abstract: Phosphinite Thioethers Derived from Chiral Epoxides. Modular P,S‐Ligands for Pd‐Catalyzed Asymmetric Allylic Substitutions.
Authors: Caldentey Xisco , Pericas Miquel A. 
Published: September 2010

AbstractA number of new phosphinite thioethers are prepared and tested in title reactions.
ChemInform Abstract: Structure—Reactivity Relationships of L‐Proline Derived Spirolactams and α‐Methyl Prolinamide Organocatalysts in the Asymmetric Michael Addition Reaction of Aldehydes to Nitroolefins.
Authors: Kelleher Fintan , Kelly Sinead , Watts John , McKee Vickie 
Published: September 2010

AbstractAmong a range of L‐proline‐derived lactams and amides, spirocyclic lactams (I), (II) and amide (III) possess the best catalytic activity in the title Michael addition of aldehydes towards β‐nitrostyrenes (IV).