bluuebunny/crossref_metadata_2025_split huggingface dataset:
Catalytic Self‐Assembled Monolayers on Au Nanoparticles: The Source of Catalysis of a Transphosphorylation Reaction
Authors: Zaupa Giovanni , Mora Claudia , Bonomi Renato , Prins Leonard J. , Scrimin Paolo 
Published: March 2011

AbstractThe catalytic activity of a series of Au monolayer protected colloids (Au MPCs) containing different ratios of the catalytic unit triazacyclononane⋅ZnII (TACN⋅ZnII) and an inert triethyleneglycol (TEG) unit was measured. The catalytic self‐assembled monolayers (SAMs) are highly efficient in the transphosphorylation of 2‐hydroxy propyl 4‐nitrophenyl phosphate (HPNPP), an RNA model substrate, exhibiting maximum values for the Michaelis–Menten parameters kcat and KM of 6.7×10−3 s−1 and 3.1×10−4 M, respectively, normalized per catalytic unit. Despite the structural simplicity of the catalytic units, this renders these nanoparticles among the most active catalysts known for this substrate. Both kcat and KM parameters were determined as a function of the mole fraction of catalytic unit (x1) in the SAM. Within this nanoparticle (NP) series, kcat increases up till x1≈0.4, after which it remains constant and KM decreases exponentially over the range studied. A theoretical analysis demonstrated that these trends are an intrinsic property of catalytic SAMs, in which catalysis originates from the cooperative effect between two neighboring catalytic units. The multivalency of the system causes an increase of the number of potential dimeric catalytic sites composed of two catalytic units as a function of the x1, which causes an apparent increase in binding affinity (decrease in KM). Simultaneously, the kcat value is determined by the number of substrate molecules bound at saturation. For values of x1>0.4, isolated catalytic units are no longer present and all catalytic units are involved in catalysis at saturation. Importantly, the observed trends are indicative of a random distribution of the thiols in the SAM. As indicated by the theoretical analysis, and confirmed by a control experiment, in case of clustering both kcat and KM values remain constant over the entire range of x1.
Syntheses and X‐ray Crystal Structures of Organoantimony Diazides
Authors: Lyhs Benjamin , Bläser Dieter , Wölper Christoph , Schulz Stephan 
Published: March 2011

AbstractAntimony(III) complexes of the general type LSbF2 (3: L1=[tBuC(NiPr)2]; 4: L2=[tBuC(NDipp)2], Dipp=2,6‐iPr2C6H3) and LSb(N3)2 (6: L1; 7: L2) were prepared in high yields and characterized by elemental analyses, NMR and IR spectroscopy and single‐crystal X‐ray diffraction. Moreover, the solid‐state structures of [L2SbF2][L2Li] (5), [L2AlH2] (1), and [L′H][L′K(thf)3] (2; L′=HC(NDipp)2) are described, in which the Li (5) and K atoms (2) adopt rather unusual coordination modes.
The Importance of a Single Methyl Group in Determining the Reaction Chemistry of Pentamethylcyclopentadienyl Cyclooctatetraenyl Uranium Metallocenes
Authors: Takase Michael K. , Ziller Joseph W. , Evans William J. 
Published: March 2011

AbstractThe steric factors that allow trivalent [(C5Me5)3U] (1) to function as a three‐electron reductant with C8H8 to form tetravalent [{(C5Me5)(C8H8)U}2(μ‐C8H8)] (2) have been explored by examining the synthesis and reactivity of the intermediate, “[(C5Me5)2(C8H8)U]” (3), and the slightly less crowded analogues, [(C5Me5)(C5Me4H)(C8H8)U] and [(C5Me4H)2(C8H8)U], that have, successively one less methyl group. The reaction of [{(C5Me5)(C8H8)U(μ‐OTf)}2] (4; OTf=OSO2CF3) with two equivalents of KC5Me5 in THF gave ring‐opening to “[(C5Me5)(C8H8)U{O(CH2)4(C5Me5)}]” consistent with in situ formation of 3. Reaction of 4 with two and four equivalents of KC5Me4H generates two equivalents of [(C5Me5)(C5Me4H)(C8H8)U] (5) and [(C5Me4H)2(C8H8)U] (6), respectively, which in contrast to 3 were isolable. Tetravalent 5 reduces phenazine and PhEEPh (E=S, Se, and Te) to form the tetravalent uranium reduction products, [{(C5Me5)(C8H8)U}2(μ‐C12H8N2)] (7), [{(C5Me5)(C8H8)U}2(μ‐SPh)2] (8), [{(C5Me5)(C8H8)U}2(μ‐SePh)2] (9), and [{(C5Me5)(C8H8)U}2(μ‐TePh)2] (10), consistent with sterically induced reduction. In contrast, the less sterically crowded 6 does not react with these substrates.
Chiral Diaminopyrrolic Receptors for Selective Recognition of Mannosides, Part 2: A 3D View of the Recognition Modes by X‐ray, NMR Spectroscopy, and Molecular Modeling
Authors: Ardá Ana , Cañada F. Javier , Nativi Cristina , Francesconi Oscar , Gabrielli Gabriele , Ienco Andrea , Jiménez‐Barbero Jesús , Roelens Stefano 
Published: March 2011

AbstractThe structural features of a representative set of five complexes of octyl α‐ and β‐mannosides with some members of a new generation of chiral tripodal diaminopyrrolic receptors, namely, (R)‐5 and (S)‐ and (R)‐7, have been investigated in solution and in the solid state by a combined X‐ray, NMR spectroscopy, and molecular modeling approach. In the solid state, the binding arms of the free receptors 7 delimit a cleft in which two solvent molecules are hydrogen bonded to the pyrrolic groups and to the benzenic scaffold. In a polar solvent (CD3CN), chemical shift and intermolecular NOE data, assisted by molecular modeling calculations, ascertained the binding modes of the interaction between the receptor and the glycoside for these complexes. Although a single binding mode was found to adequately describe the complex of the acyclic receptor 5 with the α‐mannoside, for the complexes of the cyclic receptors 7 two different binding modes were required to simultaneously fit all the experimental data. In all cases, extensive binding through hydrogen bonding and CH–π interactions is responsible for the affinities measured in the same solvent. Furthermore, the binding modes closely account for the recognition preferences observed toward the anomeric glycosides and for the peculiar enantiodiscrimination properties exhibited by the chiral receptors.
A Synthetic Route to Highly Substituted 1,2,3,4‐Tetrahydroisoquinolines via Yb(OTf)3‐Catalyzed Diastereoselective Ring Opening of Bridged Oxazolidines: Asymmetric Synthesis of 2‐Azapodophyllotoxin
Authors: Srivastava Ajay Kumar , Koh Minseob , Park Seung Bum 
Published: March 2011

AbstractWe herein report a robust and efficient synthetic route to highly functionalized enantiopure 1,2,3,4‐tetrahydroisoquinolines (THIQs) from Garner aldehyde. We utilized the inherent chirality of Garner aldehyde through 1,2‐ and 1,3‐/1,4‐asymmetric inductions iteratively to obtain 1,2,3,4‐tetrasubstitued THIQs using rigid and isolable bridged oxazolidines without any external chiral sources. All possible stereoisomers of bridged oxazoliodines were efficiently synthesized from L‐ and D‐Garner aldehydes and transformed into fully functionalized THIQs via diastereoselective ring opening with various nucleophiles in the presence of Yb(OTf)3. This methodology furnished four out of eight possible diastereomers of 1,2,3,4‐tetrasubstituted THIQs despite the electronic nature of substituents on the aryl rings. Finally, the enantioselective synthesis of 2‐azapodophyllotoxin was achieved with an overall yield of 35.4 % (eight steps) from D‐Garner aldehyde using this synthetic route.
Solvent‐Polarity‐Tunable Dimeric Association of a Fullerene (C60)–N,N‐Dimethylaminoazobenzene Dyad: Modulated Electronic Coupling of the Azo Chromophore with a Substituted 3D Fullerene
Authors: Kumar K. Senthil , Patnaik Archita 
Published: March 2011

AbstractThe tunable self‐assembly of a fullerene (C60)–N,N‐dimethylaminoazobenzene (DPNME) molecular system as a function of solvent polarity in THF/water binary solvent is reported. Gradual increase of the volume fraction of the nonsolvent water in a 1×10−5 MTHF solution of DPNME at a mixed dielectric constantεmix≈42 resulted in initial redshifting of the1(π→π*) absorption band, which signified the 1D head‐to‐tail or J‐type arrangement of the DPNME molecular system. Further increase in the solvent polarity toεmix≈66 evidenced formation of an antiparallel head‐to‐tail or H‐type molecular arrangement in conjunction with the J‐aggregates, thereby establishing a solvent‐polarity‐dependent dynamic equilibrium between the monomer ↔ J‐aggregate ↔ H‐aggregate. The controlled aggregation was governed by the synergetic effect of intermolecular donor–acceptor interaction between the electron‐deficient fullerene ring and the electron‐richN,N‐dimethylamino‐substituted aromatic ring; typically, van der Waals and π–π interactions between the molecules constituting a pair of dimers were envisaged. An agreement between the semiempirically calculated drastically reduced oscillator strength of the DPNME H‐dimer in the antiparallel configuration (0.69 vs. 1.29 in the monomeric DPNME) and the experimental electronic absorption spectra beyondεmix=66 further strengthened this assignment to the hitherto forbidden antiparallel H‐dimer. Complementing the above, the periodicity of molecular self‐assembly dictated a monoclinic unit cell in the single‐crystal XRD packing pattern with aC2/cspace group; the molecules packed laterally with mutual interdigitation with the donor (E)‐N,N‐dimethyl‐4‐(p‐tolyldiazenyl)aniline (AZNME) parts in an antiparallel fashion (contrary to the usual expectation for H‐aggregates) with strong inter‐ and intrapair van der Waals and π–π interactions between the constituent fullerene moieties. Unlike those of porphyrin/phthalocyanine bowl‐like donor‐initiated architectures, a rare class of DPNME dyadic supramolecular self‐assemblies was realized with π‐extended 2D fullerene networks, in which the linear geometry of the AZNME donor and the conformational rigidity of the fullerene acceptor played crucial roles.
Surface Assembly of Graphene Oxide Nanosheets on SiO2 Particles for the Selective Isolation of Hemoglobin
Authors: Liu Jia‐Wei , Zhang Qian , Chen Xu‐Wei , Wang Jian‐Hua 
Published: March 2011

AbstractGraphene oxide (GO) nanosheets have been immobilized onto SiO2 particles through electrostatic interactions by surface assembly. The surface‐assembled composite material was characterized by means of SEM and FTIR and UV/Vis spectroscopy to reveal an assembling ratio of 2.3 % (w/w, GO/SiO2). The GO/SiO2 composites were subsequently used, for the first time, as adsorbents for the adsorption/isolation of proteins. Selective isolation of proteins of interest, namely, hemoglobin (Hb) in this case, from complex sample matrices, for example, human whole blood, could be obtained by carefully manipulating the adsorption/desorption process. At pH 7, an adsorption of 85 % was achieved for Hb (70 mg L−1) in sample solution (1.0 mL) by the GO/SiO2 composites (3.0 mg). The adsorption behavior was consistent with the Langmuir adsorption model, corresponding to a theoretical adsorption capacity of 50.5 mg g−1 for Hb. The retained Hb could be readily recovered by using a Tris‐HCl buffer at pH 8.9 to give a recovery of 80 %. Circular dichroism and specific activity investigations indicated that the GO/SiO2 composites exhibited favorable biocompatibility, characterized by virtually no effect on the conformation and activity of Hb after adsorption/desorption. The composites were used for the selective isolation of Hb from human whole blood and achieved satisfactory results by assaying with sodium dodecyl sulfate polyacrylamide gel electrophoresis.
ChemInform Abstract: Starlike Aluminum—Carbon Aromatic Species.
Authors: Wu Yan‐Bo , Jiang Jin‐Liang , Lu Hai‐Gang , Wang Zhi‐Xiang , Perez‐Peralta Nancy , Islas Rafael , Contreras Maryel , Merino Gabriel , Wu Judy I‐Chia , von Rague Schleyer Paul 
Published: March 2011

AbstractBorn‐Oppenheimer molecular dynamics simulations and high‐level quantum chemical computations (B3LYP, MP2, CCSD(T)) reveal the starlike D5h C5Al5‐ global minimum with five planar tetracoordinate carbon atoms to be a promising candidate for detection by photoelectron detachment spectroscopy.
ChemInform Abstract: Synthesis and Crystal Structure of Nb0.84N.
Authors: Frenzel Nancy , Irran Elisabeth , Lerch Martin , Buchsteiner Alexandra 
Published: March 2011

AbstractThe new title compound is synthesized by reaction of NbO2 with water‐saturated NH3 gas (1100 °C, 76 h) and its structure is determined by powder X‐ray and neutron diffraction.
ChemInform Abstract: Vacuum Ultraviolet Spectroscopic Properties of KSrPO4:Tb3+.
Authors: Zhang Feng , Wang Yuhua , Liu Jidi 
Published: March 2011

AbstractKSr1‐xPO4:xTb3+ (x = 0.01—0.11), KSrPO4:0.005Eu2+, and KSrPO4:0.02Eu3+ phosphors are prepared by solid state reaction of stoichiometric mixtures of K2CO3, Sr(NO3)2, (NH4)2HPO4, Tb4O7, and Eu2O3 (5% H2/N2, 1200 °C, 6 h for Tb‐containing samples, and 1200 °C, 6 h in air for Eu‐containing samples).
ChemInform Abstract: Enhanced Red Emission in LiAl5O8:Fe3+ Phosphor by B3+ Doping.
Authors: Shu Wei , Qiang R. F. , Xiao Siguo , Yang Xiaoliang , Ding J. W. 
Published: March 2011

AbstractFe3+,B3+ co‐doped LiAl5O8 phosphors are prepared by evaporation of aqueous solutions of LiNO3, Al(NO3)3, FeCl3, and H3BO3 (400 °C, 2 h) followed by annealing of the obtained powders at 1200 °C (10 h).
ChemInform Abstract: Synthesis and High‐Temperature Thermoelectric Properties of Ni3GaSb and Ni3InSb.
Authors: Suriwong Tawat , Kurosaki Ken , Thongtem Somchai , Harnwunggmoung Adul , Sugahara Tohru , Plirdpring Theerayuth , Ohishi Yuji , Muta Hiroaki , Yamanaka Shinsuke 
Published: March 2011

AbstractThe title compounds are synthesized by direct reactions of stoichiometric mixtures of Ni and GaSb or InSb (silica tubes, 973 K, 4 d) and characterized by powder XRD, Seebeck coefficient, electrical resistivity, and thermal conductivity measurements.
ChemInform Abstract: High‐Q Microwave Dielectrics in the (Mg1‐xZnx)Al2O4 (x = 0—0.1) System.
Authors: Huang Cheng‐Liang , Chien Yu‐Hua , Tai Chen‐Yi , Huang Chi‐Yuen 
Published: March 2011

AbstractThe title ceramics are prepared by solid state reaction of MgO, Al2O3, and ZnO (air, 1480—1600 °C, 3 h).
ChemInform Abstract: Effect of Ca on the Microstructure and Magnetocaloric Effects in the La1‐xCaxFe11.5Si1.5 Compounds.
Authors: Zhang H. , Long Y. , Cao Q. , Zou M. , Gschneidner K. A. Jr. , Pecharsky V. K. 
Published: March 2011

AbstractWith increasing Ca concentration in La1‐xCaxFe11.5Si1.5 (x = 0, 0.1, 0.2, 0.3), the Curie temperature increases from 183 to 208 K.
ChemInform Abstract: Alkaline Earth Metal‐Hydride‐Iodide Compounds: Syntheses and Crystal Structures of Sr2H3I and Ba5H2I3.9(2)O2.
Authors: Reckeweg Olaf , DiSalvo Francis J. 
Published: March 2011

AbstractSingle crystals of Sr2H3I and Ba5H2I3.9O2 are prepared by reactions of NH4I with Sr or Ba, respectively, in a 1:4 molar ratio (Nb ampule in an evacuated silica tube, 1200 K, 24 h).
ChemInform Abstract: BaAnIV(PO4)2(AnIV: Th, Np) — A New Family of Layered Double Phosphates.
Authors: Wallez Gilles , Bregiroux Damien , Popa Karin , Raison Philippe E. , Apostolidis Christos , Lindqvist‐Reis Patric , Konings Rudy J. M. , Popa Aurelian F. 
Published: March 2011

AbstractBaTh(PO4)2 is synthesized from a gel obtained from aqueous solutions of Th(NO3)4, Ba(NO3)2, and NH4H2PO4 by annealing at 1250 °C (72 h).
ChemInform Abstract: A Three‐Dimensional Ferric Molybdenum(V) Phosphate Network with Tunnels: Synthesis, Structure, Magnetic and Electrochemical Properties.
Authors: Yu Kai , Zhou Bai‐bin , Yu Yang , Su Zhan‐hua 
Published: March 2011

AbstractThe new compound (III) crystallizes in the monoclinic space group P21/n with Z = 2 (single crystal XRD).
ChemInform Abstract: Alloyed (ZnS)x(Cu2SnS3)1‐x and (CuInS2)x(Cu2SnS3)1‐x Nanocrystals with Arbitrary Composition and Broad Tunable Band Gaps.
Authors: Liu Qinghui , Zhao Zechen , Lin Yuhan , Guo Peng , Li Shenjie , Pan Daocheng , Ji Xiangling 
Published: March 2011

AbstractZincblende Cu2SnS3 nanocrystals are synthesized from mixtures of CuCl, SnCl2, and sulfur in oleylamine (240 °C, 1 h).
ChemInform Abstract: The Metal‐Rich Phosphide Ce4Ir13.55P9.
Authors: Pfannenschmidt Ulrike , Rodewald Ute Ch. , Poettgen Rainer 
Published: March 2011

AbstractNeedle‐shaped single crystals of the new title compound are prepared by reaction of a mixture of Ce, Ir, and P (1:2:2) in a Pb flux (alumina crucible in an evacuated silica tube; 1.
ChemInform Abstract: Non‐Cret‐Based Green Chemiluminescence of Imidazopyrazinone Modified by 2,3,6,7‐Tetrahydro‐1H,5H‐benzo[i,j]quinolizine as a Strong Electron‐Donating Unit.
Authors: Saito Ryota 
Published: March 2011

AbstractTitle compound (I) exhibits a largely red‐shifted chemiluminescence in diglyme containing acetate buffer caused by a strong electron donation from the julolidin‐9‐yl moiety.
ChemInform Abstract: An Unprecedented Stereoselective [2 + 2] Cycloreversion of Cyclobutanones.
Authors: Ji Xiufang , Wang Quanrui , Goeke Andreas 
Published: March 2011

AbstractA novel metathetic cycloreversion of 7‐vinyl‐ and 7‐aryl‐bicyclo[3.2.0]heptenones is described giving rise to linear polyene ketones with high selectivity.
ChemInform Abstract: Photochemical Rearrangement of N‐Mesyloxylactams: Stereospecific Formation of N‐Heterocycles.
Authors: Drouin Alexandre , Winter Dana K. , Pichette Simon , Aubert‐Nicol Samuel , Lessard Jean , Spino Claude 
Published: March 2011

AbstractUpon irradiation a number of N‐mesyloxylactams such as (I), (IV), (VI), and (VIII) undergo efficient ring‐contraction yielding pyrrolidine, piperidine, and azepane derivatives.
ChemInform Abstract: Transformations of Perfluorinated 2‐Alkyl‐ and 2,2‐Dialkylbenzocyclobutenones in SbF5 and SiO2—SbF5.
Authors: Zonov Ya. V. , Karpov V. M. , Platonov V. E. 
Published: March 2011

AbstractHeating of perfluorinated 2‐alkylbenzocyclobutenones [cf.
ChemInform Abstract: Catalysis in Flow: The Practical and Selective Aerobic Oxidation of Alcohols to Aldehydes and Ketones.
Authors: Zotova Natalia , Hellgardt Klaus , Kelsall Geoffrey H. , Jessiman Alan S. , Hii King Kuok 
Published: March 2011

AbstractBenzylic and allylic alcohols are oxidized selectively, including substrates containing N‐ and S‐heteroatoms.
ChemInform Abstract: Regiospecific Synthesis of Nitroarenes by Palladium‐Catalyzed Nitrogen‐Donor‐Directed Aromatic C—H Nitration.
Authors: Liu Yun‐Kui , Lou Shao‐Jie , Xu Dan‐Qian , Xu Zhen‐Yuan 
Published: March 2011

AbstractThe first example of palladium‐catalyzed direct ortho‐nitration of aryl C—H bonds is presented.
ChemInform Abstract: Synthesis and Characterization of Chitosan‐Ferrocenylimine Palladacycle and Its Catalytic Performance in Heck Reaction.
Authors: Yang Yonghuan , Li Guanghua , Song Ziwei , Yang Xinli , Liu Pu 
Published: March 2011

AbstractA chitosan‐supported ferrocenylimine palladacycle complex is shown to be an efficient catalyst for the Heck arylation.
ChemInform Abstract: Post Groebke—Blackburn Multicomponent Protocol: Synthesis of New Polyfunctional Imidazo[1,2‐a]pyridine and Imidazo[1,2‐a]pyrimidine Derivatives as Potential Antimicrobial Agents.
Authors: Al‐Tel Taleb H. , Al‐Qawasmeh Raed A. 
Published: March 2011

AbstractMotifs (VI), (VIII), and (X) are obtained via the classical [4 + 1] cycloaddition Groebke—Blackburn three‐component reaction protocol of aminopyridine and aminopyrimidine (I), an aldehyde (II), and an isocyanide (III).
ChemInform Abstract: A Highly Diastereo‐ and Enantioselective Copper(I)‐Catalyzed Henry Reaction Using a Bis(sulfonamide)—Diamine Ligand.
Authors: Jin Wei , Li Xincheng , Wan Boshun 
Published: March 2011

AbstractThe sulfonamide (BSU), a highly efficient ligand in asymmetric Henry reactions, allows formation of a wide range of 1,2‐nitro alcohols with good to high diastereo‐ and enantioselectivity.
ChemInform Abstract: DABCO‐Catalyzed Reaction of 2,6‐Disubstituted 6‐Hydroxy‐2H‐pyran‐3(6H)‐ones to 1,2,5‐Triketones.
Authors: Miles William H. , Gildner Peter G. , Ahmed Zain , Cohen Evan M. 
Published: March 2011

AbstractThe process converts pyranones of type (I), previously synthesized by oxidative rearrangement of α‐hydroxyalkylfurans, to synthetically important triketones.
ChemInform Abstract: Synthesis of Highly Substituted Symmetrical 1,3‐Dienes via Tandem Carbocupration and Organocuprate Oxidation.
Authors: Aves Sarah J. , Pike Kurt G. , Spring David R. 
Published: March 2011

AbstractA one‐pot tandem carbocupration/oxidation of alkynyl esters provides rapid access to highly substituted symmetrical 1,3‐dienes [cf.
ChemInform Abstract: Enantioselective Cyclopropanation Reactions with Planar‐Chiral Pyridinium Ylides: A Substituent Effect and a Remote Steric Effect.
Authors: Kanomata Nobuhiro , Sakaguchi Ryo , Sekine Kazuki , Yamashita Satomi , Tanaka Hiroko 
Published: March 2011

AbstractThe ylide generated in situ from planar‐chiral pyridinophane (II) exhibits high enantioselectivity in cyclopropanations of 2‐substituted malononitriles.
ChemInform Abstract: Efficient Preparation of Polyunsaturated and Functionalized Acetylenic Ketones from Alkynylmanganese Bromides.
Authors: Cahiez Gerard , Gager Olivier , Moyeux Alban , Laboue‐Bertrand Blandine 
Published: March 2011

AbstractThe orgnaometal reagents, generated in situ, are stable at room temperature and react smoothly with a broad spectrum of carboxylic acid chlorides.
ChemInform Abstract: Enantioselective Organocatalytic Michael Additions of Oxyacetaldehydes to Nitroolefins.
Authors: Hutka Martin , Polackova Viera , Marak Jozef , Kaniansky Dusan , Sebesta Radovan , Toma Stefan 
Published: March 2011

AbstractAlkyl‐ and aryloxyacetaldehydes enantioselectively add to nitroolefins.
ChemInform Abstract: Silica‐Supported KHSO4: An Efficient System for Activation of Aromatic Terminal Olefins.
Authors: Das Ram Nath , Sarma Kuladip , Pathak Madan Gopal , Goswami Amrit 
Published: March 2011

AbstractKHSO4 adsorbed on chromatographically‐grade silica activates styrenes towards nucleophilic attack by alcohols at the benzylic position.
ChemInform Abstract: Copper(II) Triflate Catalyzed Intermolecular Aromatic Substitution of N,N‐Disubstituted Anilines with Diazo Esters.
Authors: Tayama Eiji , Yanaki Tomoyo , Iwamoto Hajime , Hasegawa Eietsu 
Published: March 2011

AbstractIn some cases, addition of N,N‐disubstituted anilines (I) with the masked para‐position as ligands leads to the increased yields of the products.
ChemInform Abstract: Silica Gel Supported AlCl3 Catalyzed Friedel—Crafts Acylation of Aromatic Compounds.
Authors: Boroujeni Kaveh Parvanak 
Published: March 2011

AbstractSilica gel supported AlCl3 is shown to be a mild, efficient, and chemoselective heterogeneous Lewis acid catalyst for the acylation of aromatic compounds with acid chlorides.
ChemInform Abstract: Fluoroalkylated α,β‐Unsaturated Imines: Efficient and Versatile Substrates for the Synthesis of Fluorinated Vinylogous β‐Amino Esters and 3,4‐Dihydropyridin‐2‐ones.
Authors: Palacios Francisco , Ochoa de Retana Ana M. , Pascual Sergio , Fernandez de Troconiz Guillermo , Ezpeleta Jose M. 
Published: March 2011

AbstractA simple, mild and convenient method for the synthesis of vinylogous fluoroalkylated ‐amino esters (IV) and (VI) by 1,2‐addition of enolates to fluoroalkylated α,β‐unsaturated imines is described.
ChemInform Abstract: Stereodefined Homopropargyl Amines by Tandem Nucleophilic Addition/Fragmentation of Dihydropyridone Triflates.
Authors: Tummatorn Jumreang , Dudley Gregory B. 
Published: March 2011

AbstractA variety of synthetically valuable multifunctional homopropargyl amine derivatives is prepared via reaction of dihydropyridone triflates with BuLi.
ChemInform Abstract: A Mild, Expedient, One‐Pot Trifluoromethanesulfonic Anhydride Mediated Synthesis of N‐Arylimidates.
Authors: Ghandi Mehdi , Salahi Saleh , Hasani Mohammad 
Published: March 2011

AbstractLow temperature activation of amides (I) with triflic anhydride and 2‐chloropyridine allows the C‐O bond formation with aromatic alcohols to N‐arylimidates.
ChemInform Abstract: Preparation of Arylsulfonyl Chlorides by Chlorosulfonylation of in situ Generated Diazonium Salts Using a Continuous Flow Reactor.
Authors: Malet‐Sanz Laia , Madrzak Julia , Ley Steven V. , Baxendale Ian R. 
Published: March 2011

AbstractUnder modified Meerwein conditions, aniline derivatives are converted into arylsulfonyl chlorides by a continuous flow process.