bluuebunny/crossref_metadata_2025_split huggingface dataset:
CONVERSION OF TETRABENZOBIS(THIOPYRANYLIDENE)ETHENE TO A NEW DONOR CONTAINING A PENTALENE SKELETON, DIBENZODITHIAACENAPHTHACENAPHTHYLENE, AND THEIR CHARGE TRANSFER COMPLEXES
Authors: Nakasuji Kazuhiro , Takatoh Kohki , Kotani Tomoyuki , Murata Ichiro , Yamochi Hideki , Saito Gunzi , Enoki Toshiaki , Inokuchi Hiroo 
Published: July 2006

Abstract
Dibenzodithiaacenaphthacenaphthylene was prepared from benzobis(thiopyranylidene)ethene. Both compounds are good electron donors and gave CT complexes with TCNQ, TCNQF4, and DDQ. The DDQ complexes represent the rare examples of CT complexes with relatively low resistivities despite having neither TTF-type donor nor TCNQ-type acceptor.
REDUCTION OF OXIMES WITH HYDROSILANE/H+ REAGENT
Authors: Fujita Makoto , Oishi Haruhito , Hiyama Tamejiro 
Published: July 2006

Abstract
Hydrosilane/H+ reagent reduced oximes in good yields. Stereospecific reduction of (2-acetoxy-1-phenylpropylidene)benzyloxyazane (3) was observed: the (E)-isomer gave erythro-1-phenyl-1-benzyloxyamino-2-propanol (4) in 99% selectivity, whereas (Z)-3 afforded the threo isomer of 4 in 76% selectivity.
MORPHOLOGY OF Ru PARTICLES ON Al2O3 AND ITS EFFECT ON SELECTIVITY IN CATALYTIC HYDROGENATION OF CARBON MONOXIDE
Authors: Lin Zheng-Zhong , Okuhara Toshio , Misono Makoto 
Published: July 2006

Abstract
Ru particles dispersed on Al2O3 were characterized by TEM, XRD, and H2 adsorption. It was shown that, after reduction by H2, Ru particles were aggregates of fine particles, and by oxidation and subsequent reduction they changed to large single crystallites of Ru. This change affected significantly the selectivity of CO hydrogenation in contrast to previous reports obtained for Ru/Al2O3 pretreated only by H2.
THE DIASTEREOSELECTIVE ADDITION OF TIN(II) ENOLATES DERIVED FROM CARBOXYLIC THIOESTERS TO α-IMINOESTER
Authors: Mukaiyama Teruaki , Suzuki Hiroshi , Yamada Tohru 
Published: July 2006

Abstract
The diastereoselective addition of the Sn(II) enolates derived from carboxylic thioesters to α-iminoester is described. The Sn(II) enolates of t-butylthiol esters react smoothly with α-iminoester to afford the corresponding β-aminoacid derivatives in good yield with high diastereoselectivity.
PREPARATION OF CARBON MONOXIDE ADSORBENT FROM COPPER(II) CHLORIDE AND ACTIVE CARBON
Authors: Hirai Hidefumi , Wada Keiichiro , Komiyama Makoto 
Published: July 2006

Abstract
A novel adsorbent of carbon monoxide is prepared by stirring 15.0 mmol of copper(II) chloride and 10.0 g of active carbon in water, followed by removal of the liquid phase at 0.06 mmHg, 180 °C. The adsorbent rapidly adsorbs carbon monoxide from 9:1 carbon monoxide-helium mixture under 1 atm at 20 °C, and the equilibrium amount of adsorbed carbon monoxide is 10.0 mmol.
SPECTROPHOTOMETRIC STUDY OF CLOSED-TUBE CHEMICAL TRANSPORT OF VANADIUM OXIDES WITH TeCl4
Authors: Ohtani Tsukio , Yamaoka Toshiyuki , Shimamura Koji 
Published: July 2006

Abstract
The in situ observations of the gaseous species in the closed-tube chemical transport systems, V2O3–TeCl4, V5O9–TeCl4, VO2–TeCl4, V6O13–TeCl4, and V2O5–TeCl4 were made by using an UV and VIS spectrophotometer which was improved for the high-temperature measurements. The measurements showed that a great majority of gaseous species in the transport tube is VOCl3 for all the systems, which is in agreement with the earlier result of the mass spectrometry on the VO2–TeCl4 system.
ENANTIOSELECTIVE PHOTOISOMERIZATION OF 1,3-BIS(9-ANTHRYL)PROPAN-1-OL IN POLY(METHYL-l-GLUTAMATE) MATRIX
Authors: Tazuke Shigeo , Miyamoto Yasushi , Ikeda Tomiki , Tachibana Kouzou 
Published: July 2006

Abstract
Photoisomerization(intramolecular photodimerization) of the title compound(I) proceeded enantioselectively in the matrix(II). The rate of reaction of the l-isomer is over 20% faster than that of the d-isomer. Induced circular dichroism(ICD) of I due to II matrix increased very much([Θ]&gt;106) with the progress of the reaction. The origin of enantioselectivity was discussed in relation to the change in ICD.
MAGNETIC FIELD EFFECT ON PHOTOCROSSLINKING REACTION OF BROMO- AND CHLOROMETHYLATED POLYSTYRENE
Authors: Mokita Hiroshi , Higasayama Ichiro , Yamaoka Tsuguo 
Published: July 2006

Abstract
Photocrosslinking efficiency of bromo- and chloromethylated polystyrene sensitized by 2,4-diisopentylthioxanthone was evaluated in a thin film by measuring the gel fraction of the polymer irradiated with UV(λ&gt;330 nm) light. By the application of an external magnetic field of 70 mT, the gel fraction increases and photocrosslinking efficiency is enhanced by ≈36%.
ASYMMETRIC OXIDATION OF SULFIDES TO SULFOXIDES WITH TRIVALENT IODINE REAGENTS
Authors: Imamoto Tsuneo , Koto Hiroyasu 
Published: July 2006

Abstract
New trivalent iodine reagents possessing chiral center were generated by the reaction of iodosylbenzene with the derivatives of L-tartaric anhydride. The reagents cleanly oxidize prochiral sulfides to optically active sulfoxides with substantial asymmetric induction.
A FACILE PREPARATION OF TELLUROL ESTERS FROM PHENYLTELLUROTRIMETHYLSILANE AND ACYL CHLORIDES
Authors: Sasaki Kazuaki , Aso Yoshio , Otsubo Tetsuo , Ogura Fumio 
Published: July 2006

Abstract
Phenyltellurotrimethylsilane cleanly reacted with acyl chloride, giving tellurol ester in an excellent yield. The high reactivity of tellurol ester toward lithium organocuprate was demonstrated.
RESOLUTION OF ENANTIOMERS BY HPLC ON CELLULOSE TRANS- AND CIS-TRIS(4-PHENYLAZOPHENYLCARBAMATE)
Authors: Okamoto Yoshio , Sakamoto Hideaki , Hatada Koichi , Irie Masahiro 
Published: July 2006

Abstract
Cellulose tris(4-phenylazophenylcarbamate) (CPAPC) having azobenzene pendant groups was adsorbed on silica gel to use as a chiral stationary phase for HPLC. Pure trans-CPAPC resolved many racemic compounds, whereas 70% cis-CPAPC showed very poor resolving power.
On the Mechanism of Peptide Cleavage by Carboxypeptidase A and Related Enzymes
Authors: Breslow Ronald , Schepartz Alanna 
Published: July 2006

Abstract
The evidence so far available indicates that carboxypeptidase A uses the general base mechanism for peptide hydrolysis. Based on model studies, the Glu-270 carboxylate probably performs three different proton transfers.
High Selectivity of Sulfided NiW/Al2O3 Catalyst in Desulfurization of Dibenzothiophene in the Presence of Nitrogen-Containing Compounds
Authors: Nagai Masatoshi 
Published: July 2006

Abstract
The presence of nitrogen compounds greatly improved the selectivity of a sulfided NiW/Al2O3 catalyst for the direct desulfurization of dibenzothiophene to biphenyl. Elemental sulfur precipitated after the reaction.
Solvolysis of 1-Phenyl-1-cyano-2,2,2-trifluoroethyl Brosylate
Authors: Fujiyama Ryoji , Kamimura Ippei , Yoshida Masaya , Suzuki Kojiro , Kiyooka Syun-ichi , Murata Akihisa , Goto Mutsuo , Fujio Mizue , Tsuno Yuho 
Published: July 2006

Abstract
The rates of solvolysis of 1-phenyl-1-cyano-2,2,2-trifluoroethyl brosylate were measured in various solvents, and the solvent effect was analyzed on the basis of Winstein–Grunwald Eq., giving m=0.88 and l=0.49.
Norrish Type II Photoreaction of 2,3-Dihydro-2,3-methano-1,4-naphthoquinones. A Novel Photorearrangement of α, β-Cyclopropyl Ketone to β, γ-Unsaturated Ketone
Authors: Osuka Atsuhiro , Shimizu Hirohito , Suzuki Hitomi , Maruyama Kazuhiro 
Published: July 2006

Abstract
Irradiation of the title compounds gave cyclobutanols as the initial type II cyclization products, which were further photochemically rearranged to tricyclic β, γ-unsaturated ketones presumably via homolytic fission of cyclopropane ring followed by 1,2-alkyl migration.
The Ene Reaction of Allylsilanes with Singlet Oxygen. Unusual Product Stereoselectivity
Authors: Shimizu Nobujiro , Shibata Fumihiro , Imazu Sachiko , Tsuno Yuho 
Published: July 2006

Abstract
Dye-sensitized photooxidations of allyltrimethylsilanes yield cis ene products predominantly in contrast to the highly stereoselective formation of trans ene products from carbon standards.
ESR Spin-Trapping Technique for Partial Structural Characterization of the Radicals Leached Out of a Plasma-Driven Ultrathin Film
Authors: Kuzuya Masayuki , Nakai Sachihiko , Ito Akiko 
Published: July 2006

Abstract
The partial structure of the radicals leached out of a plasma-driven ultrathin film was characterized by the ESR spectral measurements with the aid of computer simulations obtained from the reactions for 2,4,6-tri-t-butylnitrosobenzene (BNB) spin-adduct formation in various organic plasma-exposed glass ampules.
Photoinduced Allylation of Aromatic Carbonyl Compounds by Allylic Stannanes
Authors: Takuwa Akio , Tagawa Hiroyuki , Iwamoto Hidetoshi , Soga Osamu , Maruyama Kazuhiro 
Published: July 2006

Abstract
Irradiation of aromatic carbonyl compounds and allyl-, 2-methyl-2-propenyl-, or 3-methyl-2-butenyltrimethylstannanes in acetonitrile afforded δ,γ-unsaturated alcohols as major product. A photoinduced electron transfer mechanism is proposed for the allylations.
Prostaglandin Synthetase Inhibitors from the African Medicinal Plant Ozoroa mucronata
Authors: Kubo Isao , Kim Mujo , Naya Keizo , Komatsu Sakae , Yamagiwa Yoshiro , Ohashi Kinji , Sakamoto Yoshitaka , Hirakawa Shinji , Kamikawa Tadao 
Published: July 2006

Abstract
Two prostaglandin synthetase inhibitory anacardic acids were isolated from O. mucronata. The structures of these inhibitors were established by spectroscopic means. Efficient syntheses of these two via directive metallation were reported.
Unusual Regioselectivity in the Carbonylation of Substituted Benzenes via the C–H Activation Catalyzed by RhCl(CO)(PMe3)2
Authors: Sakakura Toshiyasu , Tanaka Masato 
Published: July 2006

Abstract
Meta-substituted benzaldehydes were obtained as the major product in the carbonylation of mono-substituted benzenes via the C–H activation catalyzed by RhCl(CO)(PMe3)2 under irradiation.
An Efficient and Convenient Method for the Asymmetric Allylation of Aldehydes with Allyltrimethylsilane Catalyzed by Diphenylboryl Triflate
Authors: Mukaiyama Teruaki , Ohshima Masahiro , Miyoshi Norikazu 
Published: July 2006

Abstract
In the presence of a catalytic amount of diphenylboryl triflate, aldehydes smoothly react with (S)-1-phenyl-1-trimethylsilyloxyethane and allyltrimethylsilane to afford the chiral homoallyl ethers in good yields with high stereoselectivities.
Novel Three-dimensional Host Structure Revealed in the Crystal Structure of N-Methyl-1,3-diaminopropanecadmium(II) Tetracyanonickelate(II)–Cyclohexane(2/1)
Authors: Nishikiori Shin-ichi , Iwamoto Toschitake 
Published: July 2006

Abstract
The cavity accommodating the guest cyclohexane molecule in the title clathrate compound is topped and bottomed by the two-dimensionally extended catena-[cadmium(II) tetra-μ-cyanonickelate(II)] networks and walled by the chelate ring of the N-methyl-1,3-diaminopropane coordinate to the Cd atom and by another tetracyanonickelate (II) linkage involving the Cd atom.
Stereocontrolled First Total Synthesis of Mycinolide IV
Authors: Suzuki Keisuke , Matsumoto Takashi , Tomooka Katsuhiko , Matsumoto Kazutsugu , Tsuchihashi Gen-ichi 
Published: July 2006

Abstract
First total synthesis of mycinolide IV (2) was accomplished. Novel rearrangement of epoxyalcohol derivatives was applied to the synthesis of the C(11)–C(17) portion, assembly of which with the C(1)–C(10) portion (prepared via pinacol-type rearrangement) enabled a simple and stereoselective synthesis of 2
Strong Participation of the 1-Methyl Group in Diazotization Reaction of 9-Aminomethyl-1,4-dimethyltriptycene
Authors: Yamamoto Gaku , Oki Michinori 
Published: July 2006

Abstract
The title reaction in acetic acid gave 5-methyl-1,2,6,10b-tetrahydro-6,10b-o-benzenoaceanthrylene and 1-acetoxymethyl-4,9-dimethyltriptycene as major products and only small amounts of skeletally rearranged homotriptycene derivatives to indicate strong participation of the peri-methyl group in the reaction.
Effect of Ligand-Exchange Reaction on Longitudinal Magnetization Recovery in Aqueous-Al(III) NMR
Authors: Ichikawa Kazuhiko , Jin Takashi 
Published: July 2006

Abstract
The effect of chemical exchange on the longitudinal magnetization recovery (LMR) was investigated by means of the 27Al NMR in aqueous Al2(SO4)3 solution. It was elucidated for the first time that in the case of the rapid ligand-exchange between [A1(H2O)5SO4]+(A) and [Al(H2O)6]3+(B) the slope of a single exponential decay in the observed LMR gives a slow rate R1,B(&lt;R1,A) of the time evolution of the longitudinal magnetization under the presence of energy relaxation as well as chemical exchange. The value of R1,B at the rapid exchange limit becomes equal to fAR1,A*+fBR1,B* as reported so far, where R1,α* is energy relaxation rate at site α.
Hydrogenation of Propionaldehyde by Nickel Catalysts Supported on Al2O3, SiO2, TiO2, Ta2O5,and Nb2O5
Authors: Funakoshi Masaki , Inoue Hakuai 
Published: July 2006

Abstract
The hydrogenation of propionaldehyde with various nickel catalysts was studied kinetically for a wide range of reaction conditions. The catalysts were supported on Al2O3, SiO2, TiO2, Ta2O5, and Nb2O5. The reaction rates were well correlated with the irreversibly adsorbed hydrogen uptakes. A detailed analysis concluded that this reaction was structure-insensitive under all reaction conditions tested.
The Effect of Surface Hydroxyl Groups upon the Deactivation of Excited Triplet Acetone Adsorbed on Porous Vycor Glass
Authors: Anpo Masakazu 
Published: July 2006

Abstract
H-D exchange between deuterated surface hydroxyl groups and excited triplet acetone has been observed on porous Vycor glass, proceeding via a surface hydroxyl group-assisted photoenolization of acetone. This chemical process evidences that surface hydroxyl groups play a significant role in determining the fate of the excited triplet acetone adsorbed on Vycor glass by a strong hydrogen bonding.
Stereoselective Syntheses of (+)-Davanone and (+)-Artemone via Anti-selective Epoxidation and Iodo-cyclization
Authors: Honda Yutaka , Ori Aiichiro , Tsuchihashi Gen-ichi 
Published: July 2006

Abstract
Chiral sesquiterpenes, (+)-Davanone and (+)-Artemone, were synthesized via anti-selective epoxidation and iodo-cyclization by the use of (S)-ethyl lactate as a chiral source.
183W NMR Spectra of Some Di- and Tri-nuclear Clusters of Tungsten(III), (IV), and (V)
Authors: Nagasawa Akira , Sasaki Yoichi , Wang Bateer , Ikari Shinji , Ito Tasuku 
Published: July 2006

Abstract
183W chemical shifts of [WIII2Cl9]3−, [WIV3(O)4,(NCS)9]5−, [MIV3(O)2(CH3COO)6(H2O)3]2+ (M3 = Mo3, Mo2W, MoW2, and W3), and [MV2(O)4(edta)]2− (M = Mo and W) show clear trends that the shielding at W atom increases, with an increase in the oxidation state, and upon replacement of W with Mo in a series of the mixed-metal(IV) complexes.
An Efficient and Convenient Method for the Preparation of α-Methylenated Ketones from Silyl Enol Ethers
Authors: Hayashi Masaji , Mukaiyama Teruaki 
Published: July 2006

Abstract
In the presence of a catalytic amount of stannous halide, silyl enol ethers react with bromomethyl methyl ether to give the corresponding α-bromomethyl ketones, which are smoothly converted to α-methylenated ketones on the successive addition of tertiary amine by one-pot procedure. This method is successfully applied to a synthesis of sarkomycin intermediate.
Enantioselective Synthesis of Optically Pure Amino Alcohol Derivatives by Yeast Reduction
Authors: Fujisawa Tamotsu , Hayashi Hiroki , Kishioka Yoshino 
Published: July 2006

Abstract
Baker’s yeast reduction of nitro- and imide-containing ketones gives the corresponding secondary alcohols in good yields with excellent optical purity. Among the imide groups examined, the ketones with saccharin moiety give the products in the best chemical and optical yields.
Redox Potential of BrCN-Modified Metmyoglobin/Deoxymyoglobin System
Authors: Tsukahara Keiichi 
Published: July 2006

Abstract
A redox potential of the BrCN-modified metmyoglobin was determined spectrophotometrically to be 0.18 V by using [Ru(NH3)6]2+ as a redox partner. The self-exchange rate constant for the modified myoglobin system was evaluated to be 1×104 dm3 mol−1 s−1 based on the Marcus theory, being larger than that for its native system.
Novel Reactions of Metal Acetylacetonatas with Formaldehyde in Relation to Formose Reaction
Authors: Takeichi Tsutomu , Sakurada Yoshihiro , Hieda Yoshihiro , Takayama Yuzi 
Published: July 2006

Abstract
The reaction of metal acetylacetonates with formaldehyde in water or methanol gave 4-hydroxy-3,3-bis(hydroxymethyl)-2-butanone and 5-oxa-3,3-bis(hydroxymethyl)-2-hexanone, respectively.
Hypervalent Organoiodine-Promoted Oxidative Ring Expansions of Tributylstannyl Lactols. New and General Synthesis of Unsaturated Medium-Ring Lactones
Authors: Ochiai Masahito , Iwaki Shigeru , Ukita Tatsuzo , Nagao Yoshimitsu 
Published: July 2006

Abstract
A new ring expansion route to olefinic lactones was developed. Oxidative 1,4-fragmentation of tributylstannyl lactols utilizing (diacetoxyiodo)bezene under mild conditions gave unsaturated medium-ring lactones stereospecifically in good yields. The relative stereochemistry of tributylstannyl group of the lactols determines the double bond geometry of the lactones.
Preparation and Reaction of γ-Ethoxy and (Phenylthio)allenylstannanes
Authors: Takeda Takeshi , Ohshima Hiroyuki , Inoue Masami , Togo Akira , Fujiwara Tooru 
Published: July 2006

Abstract
γ-Ethoxyallenylstannane was obtained by the reaction of 2-ethoxy-3-alkynenitrile or 1-ethoxy-1-(phenylthio)-2-alkyne with tributylstannyllithium in good yield. The reaction of 1,1-bis-(phenylthio)-2-alkyne with tributylstannylcopper(I) reagent gave γ-(phenylthio)allenylstannane which, in turn, was treated with acetal in the presence of TiCl4, to afford the propargyl sulfide derivative predominantly.
C-2 Epimerization of Aldoses Promoted by Combination of Monoamines and Alkaline Earth or Rare Earth Metal Ions, Involving a Rearrangement of the Carbon Skeleton
Authors: Tanase Tomoaki , Murata Takashi , Yano Shigenobu , Hidai Masanobu , Yoshikawa Sadao 
Published: July 2006

Abstract
Aldoses are rapidly epimerized at C-2 by combination of alkaline earth or rare earth metal ions (Ca2+, Sr2+, Pr3+, or Ce3+) and monoamines (triethylamine etc.). 13C NMR studies using [1-13C]-d-glucose of the Ca2+ system revealed that this reaction proceeds via the stereospecific rearrangement of carbon skeleton.
Closed-Tube Chemical Transport of VxSe2 by Iodine. Observation of Pressure Gradient of Selenium Vapor in a Transport Tube
Authors: Ohtani Tsukio , Kohashi Tetsuya 
Published: July 2006

Abstract
The pressure gradient of selenium vapor was observed in the closed-tube chemical transport of VxSe2 + I2 system, by using the specially designed transport tube. Vapor pressure of selenium decreases almost linearly with distance x of the tube from the hot to the cold zone. This was explained by the steady-state gas diffusion process by comparison with the transport rate.
1-Methyl-1-boracyclohepta-2,4,6-triene, the First C-Unsubstituted Borepin
Authors: Nakadaira Yasuhiro , Sato Ryuji , Sakurai Hideki 
Published: July 2006

Abstract
The first C-unsubstituted boracycloheptatriene, 1-methylborepin, is prepared and characterized spectroscopically. Some extent of conjugation through boron atom is suggested.
Studies on the Structure of Cationic Dimer of Molybdenum(VI) in Acidic Solution by XANES and EXAFS
Authors: Yokoi Kunihiko , Matsubayashi Nobuyuki , Miyanaga Takafumi , Watanabe Iwao , Murata Katsuo , Ikeda Shigero 
Published: July 2006

Abstract
Structure of the cationic dimer of molybdenum(VI) species in acidic solution was investigated by the use of XANES and EXAFS. It was found that each Mo atom in the dimer has two terminal oxygens and Mo–O–Mo bond angle is ca. 125°.
Synthetic Peptide Lipids Having Axial Chirality. Preparation and Aggregate Morphology
Authors: Murakami Yukito , Kikuchi Jun-ichi , Lee Jeng-Jong , Uchimura Katsuya , Hioki Chieko 
Published: July 2006

Abstract
The (R)-(+)- and (S)-(−)-3,3′-dinitro-2,2′-dibenzoyl moieties were used as axial chirality components, and peptide lipids were prepared by introducing either of them into the single chain portion adjacent to the alanyl residue. Their aggregate morphology was examined in aqueous media by various physical methods.
Activation of Superoxide. Facile Oxidation of Sulfoxides into Sulfones with a Peroxysulfur Intermediate Generated in situ from 2-Nitrobenzenesulfonyl Chloride and Superoxide
Authors: Kim Yong Hae , Lee Hyeon Kyu 
Published: July 2006

Abstract
Various sulfoxides, such as dialkyl, alkyl-aryl, and diaryl sulfoxides, were readily oxidized into the corresponding sulfones, in excellent yields under mild conditions, by 2-nitrobenzene peroxysulfur intermediate yenerated in situ from 2-nitrobenzenesulfonyl chloride and potassium superoxide at −30 °C, in dry acetonitrile. Chemoselective oxidation of sulfoxides which contain both double bond and sulfinyl moiety to the sulfones, was observed under the same conditions.
Inhibition of Dealumination of ZSM-5 Zeolites by Alkali Metals
Authors: Suzuki Kunio , Sano Tsuneji , Shoji Hiroshi , Murakami Tohru , Ikai Shigeru , Shin Shigemitsu , Hagiwara Hiroyuki , Takaya Haruo 
Published: July 2006

Abstract
Effect of alkali metal cations on dealumination of a framework of ZSM-5 zeolite with water was investigated by using 27Al MASNMR and FT-IR. It was found that under the steaming conditions of 600 °C for 13.5 h, dealumination of the zeolite is quantitatively controlled by alkali metal cations introduced by an ion-exchange method, leaving framework aluminium in the concentrations nearly equal to those of the metal cations.
Formation of C4-Hydrocarbons by Oxidative Methylation of Propylene with Methane over Various Metal Oxide Catalysts
Authors: Sodesawa Toshiaki , Matsubara Masato , Satoh Satoshi , Nozaki Fumio 
Published: July 2006

Abstract
Various metal oxides were studied as a catalyst for formation of C4-hydrocarbons by the reaction between methane and propylene in the presence of oxygen. La2O3 catalysts showed high activities for the C4 formation. In the case of La2O3 catalyst modified with 3 wt% Na2O, a much higher yield of C4 (10.1%) was obtained.
Preparation of Efficient Carbon Monoxide Adsorbent from Iron(II) Chloride, Copper(II) Chloride, and Active Carbon
Authors: Komiyama Makoto , Ando Hiroaki , Wada Keiichiro , Hirai Hidefumi 
Published: July 2006

Abstract
An adsorbent for carbon monoxide is prepared from 30.0 mmol of copper(II) chloride, 30.0 mmol of iron(II) chloride, and 20.0 g of active carbon. The adsorbing capacity (28.4 mmol) of the adsorbent is 2.1 times as large as the sum (13.7 mmol) of the capacity (11.8 mmol) of the active carbon-supported copper(II) chloride and that (1.9 mmol) of the active carbon-supported iron(II) chloride.
Reactions of Allenylic Tin Reagents to N-Alkoxycarbonyl-isoquinolinium and -quinolinium Salts. Effective Introduction of 2-Alkynylic Groups to Isoquinoline and Quinoline Systems
Authors: Yamaguchi Ryohei , Moriyasu Masataka , Takase Ichiro , Kawanisi Mituyosi , Kozima Sinpei 
Published: July 2006

Abstract
Reactions of allenylic tin reagents with isoquinoline in the presence of chloroformate esters as acylating agents give 2-alkoxycarbonyl-1-(2-alkynyl)-1,2-dihydroisoquinolines in good to excellent yields. Similarly, the reactions with quinoline give 1-alkoxycarbonyl-2-(2-alkynyl)-1,2-dihydroquinolines exclusively.
Asymmetric Synthesis of 2-Amino Alcohol Derivatives from (S)-α-Amino Aldehydes via Chiral Acetal Templates
Authors: Kano Shinzo , Yokomatsu Tsutomu , Iwasawa Haruo , Shibuya Shiroshi 
Published: July 2006

Abstract
Titanium tetrachloride mediated addition of allyltrimethylsilane to chiral acetals derived from (S)-α-amino aldehydes and (+)-(2S,4S)-pentane-2,4-diol gave the anti-2-amino alcohol derivatives with considerably high diastereoselectivity. On the other hand, the same reaction by the use of acetals obtained from (−)-(2R,4R)-pentane-2,4-diol gave the products of opposite stereochemistry series as major products.