bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation of Highly Active Hydrogenation Catalyst by Immobilization of Polymer-Protected Colloidal Rhodium Particles
Authors: Hirai Hidefumi , Ohtaki Michitaka , Komiyama Makoto 
Published: July 2006

Abstract
Colloidal dispersion of rhodium protected by copolymer of methyl acrylate and N-vinyl-2-pyrrolidone is treated with polyacrylamide gel having amino groups, resulting in immobilization of the rhodium particles onto the gel. The gel-immobilized rhodium particles exhibit 2–22 fold larger catalytic activities than a rhodium carbon catalyst for hydrogenation of olefins at 30 °C under 1 atm.
A Synthetic Approach to Furanocembranolides
Authors: Kondo Akihiro , Ochi Takeshi , Iio Hideo , Tokoroyama Takashi , Siro Motoo 
Published: July 2006

Abstract
The furanocembranoid skeleton of lophotoxin-type has been constructed efficiently by a method utilizing the formation reaction of a furan ring for the macrocyclization.
Heterocyclic Acceptors in Diastereoselective Palladium Mediated [3+2] Cycloadditions
Authors: Trost Barry M , King Steven A , Nanninga Thomas N 
Published: July 2006

Abstract
Whereas cyclohexenones and ketones are poor acceptors for palladium mediated cycloadditions of 2-trimethylsilylmethylallylacetate, oxygen heterocycles bearing such functionality react smoothly and with high diastereoselectivity.
Decrease of Molecular Weight of Polystyrene by Ball-milling
Authors: Fukunaga Kimitoshi , Kimura Makoto 
Published: July 2006

Abstract
Mechanochemical degradation of monodispersed polystyrene by a ball mill has been studied. A consistent bimodal mode of the degradation was observed for all monodispersed polystyrenes examined. From this mode of the degradation, information on the distribution of a degraded polymer molecule was obtained.
Formation of a Novel Acyl Anion Equivalent by the Electroreduction of Oxazolinium Salts
Authors: Shono Tatsuya , Kashimura Shigenori , Yamaguchi Yoshihide , Ishige Osamu , Uyama Hiroshi , Kuwata Fumitaka 
Published: July 2006

Abstract
Electroreduction of oxazolinium salts synthesized from the corresponding carboxylic acids gave a novel acyl anion equivalent (AAE). The reaction of these AAEs with electrophiles afforded the corresponding aldehydes or ketones in good yields.
Novel Syntheses of Bis(trialkylsilyl)amines by Reductive Trialkylsilylation of Azo Compounds
Authors: Kira Mitsuo , Nagai Satoshi , Nishimura Mitsushi , Sakurai Hideki 
Published: July 2006

Abstract
Reduction of azo compounds with a system of a trialkylchlorosilane and lithium has been found to afford bis(trialkylsilyl)amines in the presence of a transition metal halide as a catalyst in THF. The reaction course was significantly modified by using t-butyldimethylchlorosilane as a trialkylchlorosilane.
Electrochemical Preparation of Poly(p-phenylene) Using Trifluoromethane Sulfonic Acid as a Catalytic Electrolyte
Authors: Tsuchida Eishun , Yamamoto Kimihisa , Asada Toshio , Nishide Hiroyuki 
Published: July 2006

Abstract
Electro-oxidative polymerization of benzene in the presence of trifluoromethane sulfonic acid yields poly(p-phenylene) efficiently; The acid forms a protonated complex of benzene and cathodically shifts its oxidation potential.
Novel Two-Step Synthesis of Homobarrelenones, Bicyclo[3.2.2]nona-3,6,8-trien-2-ones, from Tropones and 2,3-Bis(methoxycarbonyl)-7-oxabicyclo[2.2.1]heptadiene by High-Pressure Cycloaddition-Thermal Cycloreversion Procedure
Authors: Tian Guan Rong , Sugiyama Shigeru , Mori Akira , Takeshita Hitoshi 
Published: July 2006

Abstract
The Diels–Alder adduct of tropone with 2,3-bis(methoxycarbonyl)-7-oxabicyclo[2.2.1]hepta-2,5-diene formed homobarrelenone by heating at ca. 130 °C. Similarly prepared were 1-hydroxy-, 3-methoxy-, 1-chloro-, and 3-chlorohomobarrelenones. High-pressure cycloaddition improved the yields of the Diels–Alder adducts.
Langmuir–Blodgett Films of Polyallylamine Modified by Fluorocarbon
Authors: Sekiya Akira , Ishida Hiroyasu , Tamura Masanori , Watanabe Masako 
Published: July 2006

Abstract
Fluoroalkyl groups were introduced to polyallylamine by the treatment with ethyl perfluorooctanoate. Langmuir–Blodgett films of the fluorinated polymer were successfully prepared. Characterizations of the films were attempted.
Protecting Group for Carboxyl Function. Cleavage of 2-Tosylethyl Esters with Fluoride Ion in Non-aqueous Media
Authors: Tsutsui Hironori , Muto Masakazu , Motoyoshi Katsuyuki , Mitsunobu Oyo 
Published: July 2006

Abstract
2-Tosylethyl carboxylates reacted with tetrabutylammonium fluoride in tetrahydrofuran at 0 °C for 1 h to give the corresponding free acids in nearly quantitative yields. Under the same conditions, t-butyldimethylsilyl protecting group of secondary alcohols remained intact.
Electrocatalytic Hydrogenation on Nickel Microparticle Electrodes
Authors: Yamada Tsukasa , Osa Tetsuo , Matsue Tomokazu 
Published: July 2006

Abstract
Nickel microparticle electrodes were prepared by electrodeposition in a Nafion film coated on graphite or nickel plate. The nickel particles were distributed three-dimentionally on and into the Nafion film and their diameters were in a range of 50 to 200 nm. These electrodes have shown higher activity for hydrogenation of 2-cyclohexen-1-one than the electrodeposited nickel cathode without Nafion or Raney-nickel particle cathode.
Dynamic Processes in W/O Type Microemulsions Studied by a Dynamic Light Scattering Technique
Authors: Abe Masahiko , Nakamae Masato , Ogino Keizo , Wade William H 
Published: July 2006

Abstract
Dynamic processes in W/O type microemulsions have been studied by using a submicron particle analyzer. When large particles of microemulsion, which include water, are in quiet contact with the smaller particles without any stirring, the size of the microemulsion droplets will change due to solubilizate exchange between W/O type microemulsion droplets.
A Convenient Synthesis of Fluorine-Containing Highly-Substituted Furans through New Fluoride Ion-Catalyzed Reaction of 1-Alkyl-F-1-alkenyl Phosphates
Authors: Kuroboshi Manabu , Shinozaki Takao , Ishihara Takashi , Ando Teiichi 
Published: July 2006

Abstract
1-Alkyl-F-1-alkenyl phosphates, easily prepared from alkyl F-alkyl ketones and sodium diethyl phosphite, underwent the dephosphorylation followed by cyclocondensation in the presence of a fluoride ion catalyst and triethylamine at ambient temperature to give 3,4-di-F-alkylated furan derivatives in moderate to good yields.
Nature of Metal-Olefin Bond in Neutral η3-Allyl (olef in)platinum(II) Complexes. In-plane Olefin Coordination and Stability Trend Unusually Weakly Dependent on Electronic Effect of Olefin-substituent
Authors: Kurosawa Hideo , Ohnishi Hiroaki , Miki Kunio , Kasai Nobutami , Tatsumi Kazuyuki , Nakamura Akira 
Published: July 2006

Abstract
Relative olefin coordination ability in Pt(η3-CH2CMeCH2)(CH2=CHC6H4Y)(C6F5)(2)was determined to show the stability trend unusually weakly dependent on the electronic property of the substituent Y. The crystal structure of the styrene complex 2 (Y= H) revealed the C=C bond oriented parallel to the coordination plane. The nature of Pt-olefin bond in 2 has been discussed in terms of these stability and structural trends.
Photosensitized Hydride Transfer. Highly Regioselective 1,4-Photoreduction of NAD(P)+ Models under Visible Light with an Organometallic Rhodium(III) Porphyrin as Sensitizer
Authors: Aoyama Yasuhiro , Midorikawa Koji , Toi Hiroo , Ogoshi Hisanobu 
Published: July 2006

Abstract
An organometallic acetyl-Rh complex of octaethylporphyrin catalyzes under the visible light the photoreduction of 1-benzylnicotinamide (BNA+) or l-benzyl-3-acetylpyridinium ion (BAP+) as NAD(P)+ model with tetraphenylborate as a reductant and an alcohol as a proton source to give the corresponding 1,4-dihydro derivative (BNAH or BAPH) as the sole reduction product and biphenyl as the oxidation product of B(C6H5)4.
A Novel Enantiocontrolled Synthesis of (+)-9-Deacetyl-9-(hydroxymethyl)-4-demethoxydaunomycinone
Authors: Izawa Toshio , Wang Zhe-qing , Nishimura Yoshio , Kondo Shinichi , Umezawa Hamao 
Published: July 2006

Abstract
An enanticcontrolled synthesis of (+)-9-deacetyl-9-(hydroxymethyl) -4-demethoxydaunomycinone has been achieved via asymmetric introduction of the 9-hydroxyl group as a key step by catalytic Sharpless epoxidation.
Structural and Electrical Properties of (BEDT-TTF)3CI2(H2O)2
Authors: Mori Takehiko , Inckuchi Hiroo 
Published: July 2006

Abstract
An organic conductor (BEDT-TTF)3Cl2(H2O)2 (BEDT-TTF: bis(ethylenedithio)tetrathiafulvalene) has been prepared by using [(C2H5)4N]2CoCl4 as an electrolyte. This complex shows as high a conductivity as σrt = 500 S cm−1, and undergoes a metal–semiconductor transition around 100 K.
Phenylacetaldehyde as an Effective Additive for the Selective Hydrogenation of Some Nonconjugated Dienes to Monoenes over Palladium Catalysts
Authors: Nishimura Shigeo , Ishibashi Masayoshi , Takamiya Hiroshi , Koike Naomi , Matsunaga Tadashi 
Published: July 2006

Abstract
Methyl linoleate and 1,5-cyclooctadiene are hydrogenated with high selectivity to the corresponding monoenes over palladium catalysts in the presence of added phenylacetaldehyde, with almost complete depression of the hydrogenation to the saturates.
The Trityl Cation Catalyzed Michael Type Reaction of Stannylated Nucleophiles with Ethylthioketene Dithioacetals
Authors: Hashimoto Yukihiko , Sugumi Hiroyuki , Okauchi Tatsuo , Mukaiyama Teruaki 
Published: July 2006

Abstract
In the presence of a catalytic amount of trityl salt, allylstannanes and stannylated enolates smoothly react with 2-(2-ethylthioalkylidene)-1,3-dithiolane, synthetic equivalent of α,β-unsaturated ester, to afford the corresponding adducts in good yields, respectively.
Photoelectron Mean Free Path in Langmuir–Blodgett Film Estimated from Angular Dependence of X-Ray Photoelectron Spectra
Authors: Kajiyama Tisato , Morotomi Naoaki , Hiraoka Shoji , Takahara Atsushi 
Published: July 2006

Abstract
The Langmuir–Blodgett (built-up) film of barium stearate was prepared and its angular dependence of X-ray photoelectron spectra was obtained. A simple layer model was proposed to evaluate angular dependence of X-ray photoelectron spectra. The electron mean free path of C1s photoelectron (kinetic energy of ca.965 eV) was determined from comparison between experimental and calculated take-off angle dependences of intensity of C1s spectra.
Stereo-differentiation in the Coupling Reaction of Boc-Dl-Amino Acid with Poly-l(or d)-Amino Acids Attached to Polystyrene Resin
Authors: Munegumi Toratane , Harada Kaoru 
Published: July 2006

Abstract
Boc-Dl-amino acids(Ala, Val, Leu) were coupled with known length of poly-l(or d)-amino acids(Ala, Val) attached to polystyrene resin by dicyclohexylcarbodiimide(DCC). Preferential couplings of Boc-l-Val with poly-l-Ala resin(e.e.≤23%) and of Boc-l-Leu with poly-d-Val resin(e.e.≤54%) were observed.
A Preparative Method of Dl-threo-3-Isopropylmalic Acid and Dl-threo-[2-2H]-3-Isopropylmalic Acid
Authors: Yamada Tohru , Kakinuma Katsumi , Oshima Tairo 
Published: July 2006

Abstract
A practical preparative method of the titled compounds was exploited, during which unusually erythro-favored aldol condensation of an lower alkyl ester was observed.
Photoactivation of Nitrile Hydratase in Corynebacterium sp. N-774
Authors: Nakajima Yasutaka , Doi Toshiaki , Satoh Yoshiaki , Fujiwara Atsushi , Watanabe Ichiro 
Published: July 2006

Abstract
Irradiation of cells or extracts of Corynebacterium sp. N-774 with light increased nitrile hydratase activity. The effective wavelength was about 370 nm, i.e., the near-ultraviolet region. When stored at 0 °C in the dark, the enzyme activity of cells gradually decreased, and most of the lost activity could be restored by irradiation with light.
Asymmetric Allylic Alkylation of 1,3-Disubstituted 2-Propenyl Acetates Catalyzed by a Chiral Ferrocenylphosphine–Palladium Complex
Authors: Hayashi Tamio , Yamamoto Akihiro , Ito Yoshihiko 
Published: July 2006

Abstract
Reaction of racemic 2-propenyl acetates substituted with two different aryl groups at 1 and 3 positions with sodium acetylacetonate in the presence of a palladium catalyst containing an optically active ferrocenylphosphine ligand gave regioisomeric allylic alkylation products of high optical purity (up to 95% ee).
Effects of External Magnetic Fields on Laser-Induced Electron-Transfer Reactions in Porphyrin–Viologen Pairs at the Surface of Molecular Bilayers
Authors: Usui Satoshi , Nakamura Hiroshi , Ogata Takeshi , Uehata Akihiro , Motonaga Akira , Matsuo Taku 
Published: July 2006

Abstract
Photoinduced electron transfer from amphiphilic zinc porphinate in bilayer membranes to various viologen derivatives was investigated by the use of external magnetic field (EMF). In the presence of EMF, the reverse reaction was appreciably retarded, when the photo-reduced viologen molecule was tightly bound to the oxidized counterpart (zinc porphinate cation radical) either by Coulombic or by amphiphilic interactions. Effects of EMF were not detected when the photogenerated radical pairs had good chance of cage escape.
New Radical Anion Complex, [(CH3)4N][Ni(dmit)2]2 with Metal-Semimetal Phase Transition
Authors: Kim Hyernjoo , Kobayashi Akiko , Sasaki Yukiyoshi , Kato Reizo , Kobayashi Hayao 
Published: July 2006

Abstract
The crystal structure determination was made on the multi-sulfur π-acceptor complex, [(CH3)4N][Ni(dmit)2]2, which is the first molecular metal composed of Ni(dmit)2 (dmit=isotrithionedithiolate) molecules and the closed-shell cations. The metal-semimetal transition with large hysteresis was observed.
Regioselective Oxyselenenylation
Authors: Toru Takeshi , Yamada Yoshio , Maekawa Eturô , Ueno Yoshio 
Published: July 2006

Abstract
The regioselective oxyselenenylation of terminal olefins or cycloalkenes was achieved via olefin oxymercuration and subsequent radical substitution by selenenylating reagent such as S-benzoyl Se-phenyl selenosulfide, diphenyl diselenide, or phenylselenocyanide. Successful application to intramolecular selenocyclization of a mercurial bearing an α,β-unsaturated ester is also described.
A New Finding in the Dieckmann Type Annulation of a Chiral Half-Thiol Diester Having Latent σ-Symmetry
Authors: Nagao Yoshimitsu , Nakamura Takeshi , Ochiai Masahito , Fuji Kaoru , Fujita Eiichi 
Published: July 2006

Abstract
It was revealed that the Dieckmann type annulation of a half-thiol diester having latent σ-symmetry did not always proceed in the regiocontrolled fashion even though the reaction yielded the desired β-keto ester. Direction of the regioselectivity dramatically differed depending on the base employed, which was demonstrated by treating an optically pure half-thiol diester with lithium diisopropylamide, dimsylsodium, and dimsylpotassium, respectively.
New Phases in Vanadium Phosphorus Oxides as Butane Selective Oxidation Catalyst
Authors: Matsuura Ikuya , Mori Atsuhito , Yamazaki Mami 
Published: July 2006

Abstract
A new phase, β′, has been characterized through a combination of techniques redox titration, paper chromatography, and XRD measurements. The general formula of β′-phase with (VO)2+(VO)2n−13+ (P2O7)4−(PO4)2n3− (n is 1,2,4.8,- - -,) was performed. The β′-phase is indexed in orthorhombic system with the space group C2v5 similar to that of (VO)2(P2O7). The cell dimensions for the full oxidized β′-phase are given a = 9.751 Å, b = 8.451 Å, and c = 16.968 Å. A topotactic redox reaction undergoes between β′-phase and (VO)2P2O7 for the oxidation of butane to maleic anhydride.
Oxazoles Are Masked Carboxyls That Activate Ortho-Leaving Groups in Nucleophilic Aromatic Substitution
Authors: Cram Donald J , Bryant Judi A , Doxsee Kenneth M 
Published: July 2006

Abstract
Oxazoles substituted in their 2-positions with 2-methoxy-, 2-fluoro-, or 2,6-difluorophenyl groups, and in their 4,5-positions with methyls or phenyls, were treated with ArMgBr or ArLi to give substituted biphenyl or terphenyl products. The oxazole groups were subsequently converted to esters, acids, or amides. These reactions provide a new unsymmetrical aryl-aryl coupling synthon.
Chemical Trapping of 1,4-Biradicals with Hydrogen and Deuterium Selenides
Authors: Kambe Nobuaki , Masawaki Teruyuki , Kondo Kiyoshi , Miyoshi Noritaka , Ogawa Akiya , Sonoda Noboru 
Published: July 2006

Abstract
1,4-Biradicals photogenerated from alkyl phenyl ketones have been trapped directly by hydrogen selenide before the biradicals undergo usual collapsing. Two hydrogen atoms are thus introduced into both radical sites. The rate constant for hydrogen abstraction of secondary carbon radicals from H2Se has been estimated to be greater than 1.6×108 M−1s−1.
Asymmetric Hydrogenation of 2-Aryl-1-nitropropenes by Fermenting Bakers’ Yeast
Authors: Ohta Hiromichi , Ozaki Kazuhiko , Tsuchihashi Gen-ichi 
Published: July 2006

Abstract
2-Aryl-1-nitropropenes were enantioselectively hydrogenated on C=C double bonds by incubation with fermenting bakers’ yeast to afford optically active 2-aryl-1-nitropropanes.
Liquid Phase Oxidation of 2,6-Di-t-butylphenol by Molecular Oxygen Using Magnesium Oxide Catalysts Modified with Metal Ion
Authors: Kurokawa Hideki , Ueda Wataru , Morikawa Yutaka , Moro-Oka Yoshihiko , Ikawa Tsuneo 
Published: July 2006

Abstract
Mn(II), Co(II), Cu(II), or Fe(III) ion containing magnesium oxides catalyzed oxidation of 2,6-di-t-butylphenol to quinones by molecular oxygen. 98% Yield to 1,1′-bis(4-oxo-3,5-di-t-butylcyclohexadienylidene) was obtained with 16.7 wt% Mn ion containing magnesium oxide catalyst.
The Active Hydrogen Electrochemically or Thermally Generated on Pd/H3PO4/Pd Catalysts
Authors: Otsuka Kiyoshi , Yamanaka Ichiro 
Published: July 2006

Abstract
Hydrogenation of 2-propanol into propane was caused by the hydrogen atoms electrochemically generated on Pd-black of the electrocatalytic cell Pd/H3PO4/Pd. The reaction was also caused by the hydrogen generated through spillover and reverse spillover between Pd and H3PO4. Under closed circuit conditions, the latter hydrogenation over the anode Pd was retarded because of the inhibition of the reverse spillover.
A Convenient Method for the Transformation of Alkenyl Sulfides to 2-(Phenylthio)alkanenitriles, Homoallyl Sulfides, and Thioacetals
Authors: Takeda Takeshi , Kaneko Yuichiro , Nakagawa Hitoshi , Fujiwara Tooru 
Published: July 2006

Abstract
2-(Phenylthio)alkanenitriles, homoallyl sulfides, and thioacetals were obtained in good yields by the reaction of alkenyl sulfides with the corresponding silyl nucleophiles via thionium ion intermediates.
Reformatsky Reaction of Methyl 2-Bromo-3,3,3-trifluoropropanoate. A Synthetic Method for α-Trifluoromethyl-β-hydroxy Esters
Authors: Yokozawa Tsutomu , Ishikawa Nobuo , Nakai Takeshi 
Published: July 2006

Abstract
The Reformatsky reagent, prepared from the title bromo-ester and zinc powder in dioxane, is found to be thermally stable enough to undergo addition reactions with aldehydes to afford the α-trifluoromethyl-β-hydroxy esters in high yields. The unique reactivity of the fluorinated zinc reagent is discussed.
Preparation of Graphite Intercalation Compound of Vanadium Fluoride in Fluorine Atmosphere
Authors: Nakajima Tsuyoshi , Matsui Takeo 
Published: July 2006

Abstract
Graphite intercalation compound(GIC) of vanadium fluoride has been prepared in fluorine atmosphere. The GIC’s prepared were stage 1–8 compounds with composition, C8.4−79.5VF5.8−6.0. The size of intercalated VF6−(di) decreased from 0.533 nm to 0.415 nm with increasing x in CxVF6. The compounds with small di’s showed high stability in air.
ESR Studies of Active Surface Titanium Ions on Anchored Ti-Oxide Catalysts
Authors: Anpo Masakazu , Shima Takahito , Fujii Tsuneo , Suzuki Satoshi , Che Michel 
Published: July 2006

Abstract
ESR studies of the photoreduction of Ti-oxide supported onto porous Vycor glass showed that anchored samples exhibit only one type of Ti3+ ions, which are in position of low coordination. On the other hand, impregnated catalysts show several types of Ti3+ ions with different coordinations.
Structural Studies on a Photosystem II Reaction-Center Complex Consisting of D-1 and D-2 Polypeptides and Cytochrome b-559 by Resonance Raman Spectroscopy and High-Performance Liquid Chromatography
Authors: Fujiwara Masao , Hayashi Hidenori , Tasumi Mitsuo , Kanaji Mariko , Koyama Yasushi , Satoh Kimiyuki 
Published: July 2006

Abstract
Resonance Raman spectra of chlorophyll a and β-carotene moieties have been observed from a photosystem II reaction-center complex containing the D-1 and D-2 polypeptides and cytochrome b-559. Examination of the CC double-bond and the keto CO stretching regions of chlorophyll a moiety has indicated that the Mg atom is five-coordinate and the keto CO is hydrogen-bonded. The resonance Raman spectrum of β-carotene moiety has suggested that this carotenoid molecule takes the all-trans form. This suggestion has been supported by an HPLC analysis of the extracted carotenoid.
Carbon and Nitrogen Contents of Carbonaceous Chondrites and Their Implications for a Primitive Condensate in the Early Solar System
Authors: Shimoyama Akira , Harada Kaoru , Yanai Keizo 
Published: July 2006

Abstract
We found that C vs. N contents in Antarctic carbonaceous chondrites can be approximated by the equation, log N = a log C − b. Extrapolating the equation, we estimated that over 80% of a condensate more primitive than C1 chondrites, consist of organic matter and water.
Acetal-bond Cleavage of 4,6-O-Alkylidenehexopyranosides by Diisobutylaluminium Hydride and by Lithium Triethylborohydride-TiCl4
Authors: Mikami Tetsuhiro , Asano Hiroyuki , Mitsunobu Oyo 
Published: July 2006

Abstract
Regioselective acetal-bond cleavage of 4,6-O-benzylidene-and 4,6-O-(4-methoxybenzylidene)-α-d-altropyranosides by DIBAL or Li(C2H5)3BH–TiCl4 is described. The sense of regioselectivity could be controlled by suitable choice of the protecting group of hydroxyl function at C-3. Reduction of 4,6-O-alkylideneglucopyranosides by DIBAL is also examined.
Simultaneous Catalytic Removal of NO and SO2 over Pt/ZSM-5 and V2O5–MoO3/TiO2 Catalysts
Authors: Teraoka Yasutake , Shimanoe Kengo , Yamazoe Noboru 
Published: July 2006

Abstract
The simultaneous catalytic remov.al of NO and SO2 was examined over solid catalysts. SO2 oxidation was found to be more difficult than NO reduction with NH3. Pt/ZSM-5 and V2O5–MoO3/TiO2 showed high stationary activities for both reactions, suggesting a possibility of the simultaneous removal process of NO and SO2 by using solid catalysts.
New Near Infrared Absorbing Metal Complex Dyes with N,O-Bidentate Ligands, 6-Substituent-5,8-quinolinediones
Authors: Yoshida Katsuhira , Ishiguro Miwa , Kubo Yuji 
Published: July 2006

Abstract
New metal complex dyes were synthesized by the reaction of various 6-substituent-5,8-quinolinediones with transition metal salts. The first absorption bands of these dyes were sensitively shifted to longer wavelength with increase of electron-donating power of the 6-substituents and reached to the near infrared region.
The Asymmetric Hydrocyanation of Aldehydes with Cyanotrimethylsilane Promoted by a Chiral Titanium Reagent
Authors: Narasaka Koichi , Yamada Tohru , Minamikawa Hiroyuki 
Published: July 2006

Abstract
The asymmetric hydrocyanation of aldehydes with cyanotrimethylsilane proceeds by the use of a chiral alkoxy titanium(IV) to give the corresponding cyanohydrins with good enantioselectivity.
Matrix Effect. Dimerization of Silylenes at 77 K in the Matrix
Authors: Sekiguchi Akira , Hagiwara Kazuyoshi , Ando Wataru 
Published: July 2006

Abstract
The dimerization of silylenes was studied in hydrocarbon IP matrix ranging in viscosity from 106 to 1012 at 77 K. The silylenes dimerized to disilenes in soft matrix at 77 K without annealing.