bluuebunny/crossref_metadata_2025_split huggingface dataset:
ISOLATION AND X-RAY CRYSTAL STRUCTURES OF THE 1:1 COMPLEXES OF Pt(or Pd)Cl2 WITH POLYTHIA[n](1,1′)RUTHENOCENOPHANES AND RELATED COMPOUNDS
Authors: Akabori Sadatoshi , Sato Sadao , Tokuda Takehiko , Habata Yoichi , Kawazoe Kayoko , Tamura Chihiro , Sato Masaru 
Published: July 2006

Abstract
Platinum or Palladium dichloride coordinated to polythia[n](1,1′)ruthenocenophanes, forming the crystalline 1:1 adducts. X-Ray crystallography of the complexes of the 1,4,7,10-tetrathia[n]ruthenocenophane with PtCl2 and PdCl2 revealed that the Pt(or Pd)Cl2 bonded selectively to the two S atoms among four S atoms of the ligand with a slightly distorted cis square-planer configuration.
Characterization of Fe Supported Y Type Zeolite by Using ESR and FT-IR
Authors: Hidaka Setsuo , IIno Akira , Mibuchi Takeharu , Nita Kenji , Yamazoe Noboru 
Published: July 2006

Abstract
Spectroscopic investigation using ESR and FT-IR was made on Fe supported Y type zeolite prepared by treating NH4Y zeolite with a ferric nitrate solution. Superparamagnetism of ESR signal indicated the existence of super fine particles of ferric oxide, while FT-IR measurements suggested small cluster ions containing Fe3+ bonded to zeolite lattice. The formation of such small particles was considered to proceed cooperatively with dealumination.
Synthesis and Conformational Behavior of Syn- and Anti-8-methoxycarbonyl-(Z)-[6]paracycloph-3-enes
Authors: Tobe Yoshito , Kaneda Teruhisa , Kakiuchi Kiyomi , Odaira Yoshinobu 
Published: July 2006

Abstract
Syn- and anti-8-methoxycarbonyl-(Z)-[6]paracycloph-3-enes were synthesized and the barrier for the conformational inversion of the bridge was determined to be ΔG≠(298)=103 kJ mol−1.
Effect of the Modification of the Heme Distal Side and of the Heme Propionates on the Reduction by Ascorbate of Metmyoglobin
Authors: Tsukahara Keiichi , Okazawa Tomoyuki , Yamamoto Yasuo 
Published: July 2006

Abstract
The modification of the heme distal histidylimidazole by cyanogen bromide or of the heme propionates to their methyl esters accelerated the reduction rate by ascorbate of metmyoglobin compared with its native form, suggesting that the structural change of the iron site from hexa- to penta-coordination is an important factor.
Stereo- and Regiospecific Synthesis of Trisubstituted Alkenes via the Palladium-catalyzed Cross-coupling Reaction of Diisopropyl (E)-(1-Alkyl-1-alkenyl)boronates with Organic Halides
Authors: Satoh Makoto , Miyaura Norio , Suzuki Akira 
Published: July 2006

Abstract
The reaction of diisopropyl (Z)-(1-bromo-1-alkenyl)boronates readily obtainable, with organolithiums and bases takes place readily to give (E)-(1-organo-1-alkenyl)boronates, the cross-coupling of which with various organic halides proceeds smoothly in the presence of Pd-catalyst and base to afford stereodefined trisubstituted alkenes in good yields.
Selective Synthesis of Ethylene from Synthesis Gas over Hybrid Catalyst System
Authors: Arakawa Hironori , Kiyozumi Yoshimichi , Suzuki Kunio , Takeuchi Kazuhiko , Matsuzaki Takehiko , Sugi Yoshihiro , Fukushima Takakazu , Matsushita Shoushirou 
Published: July 2006

Abstract
Selective synthesis of ethylene from synthesis gas has been investigated by using a hybrid catalyst system which was composed of an ethanol synthesis catalyst and zeolite as a dehydration catalyst. Ethylene was produced with a 45% selectivity from synthesis gas by the combination of Rh–Ti–Fe–Ir/SiO2 catalyst and H-Silicalite catalyst.
Photochemical and Chemical Reduction of Nitroalkenes Using Viologens as an Electron Phase-Transfer Catalyst
Authors: Tomioka Hideo , Ueda Koichi , Ohi Hirofumi , Izawa Yasuji 
Published: July 2006

Abstract
An amphiphilic electron acceptor, i.e., N,N′-dioctyl-4,4′-bipyridinium, was used as an electron carrier between water–oil two phases, in which nitroalkenes in organic phase were readily reduced to the corresponding oximes and/or carbonyl compounds.
Raman Spectra of Li2O–SiO2 Glasses Prepared by Rapid Quenching
Authors: Tatsumisago Masahiro , Minami Tsutomu , Umesaki Norimasa , Iwamoto Nobuya 
Published: July 2006

Abstract
Raman spectra were measured of rapidly quenched Li2O–SiO2 glasses containing high Li2O concentrations. The proportions of SiO4 tetrahedral units with different numbers of non-bridging oxygen atoms per a silicon atom were determined for these glasses. It was found that silicates in the glass with the highest Li2O content (63 mol% Li2O) consist of large amounts of isolated SiO44− and Si2O76− ions.
Facile Formation of Semi-Reduced Radicals of cis-N,N′-Diacylindigos by Visible-Light-Induced One-Electron Transfer from Tertiary Amines
Authors: Setsune Jun-ichiro , Fujiwara Takashi , Murakami Kazutoshi , Mizuta Yasufumi , Kitao Teijiro 
Published: July 2006

Abstract
N,N′-Oxalyl and N,N′-malonyl derivatives of indigo and 6,6′-di-t-butylindigo were reduced with high quantum efficiencies to their semi-reduced radicals by visible light irradiation in the presence of tertiary amines. These semi-reduced radicals were reversibly autoxidized and thus oxidative dealkylation of tertiary amines was catalyzed photochemically by these indigos.
Depth-distribution of Fluorescent Species in Silk Fabrics as Revealed by Total Internal Reflection Fluorescence Spectroscopy
Authors: Kurahashi Akihiko , Itaya Akira , Masuhara Hiroshi , Sato Masanori , Yamada Takashi , Koto Chise 
Published: July 2006

Abstract
Fluorescence spectra of silk woven fabrics with and without dyes, carthamin and berberin, were measured by using an excimer laser as an excitation pulse. Examining the results obtained with excitation under total internal reflection and normal conditions, a depth-distribution of fluorescent dyes in the silk was considered.
A New Treatment of Sewage Sludge by Direct Thermochemical Liquefaction
Authors: Suzuki Akira , Yokoyama Shin-ya , Murakami Masanori , Ogi Tomoko , Koguchi Katsuya 
Published: July 2006

Abstract
A new treatment of sewage sludge was developed. When sewage sludge was treated with sodium carbonate under pressure of nitrogen at above 300 °C, heavy oils were obtained in sufficiently high yields. Energy balance is briefly discussed, showing this method is feasible in terms of input/output energy ratio.
A Stereospecific Synthesis of β-Glycosides of N-Acetylneuraminic Acid and Secondary Alcohols
Authors: Okamoto Kaoru , Kondo Tadao , Goto Toshio 
Published: July 2006

Abstract
Glycosylation of secondary alcohols such as cholesterol, methyl 2,4,6-tri-O-benzylgalactopyranoside, and 2-deoxy-2,3-dehydro-NeuAc methyl ester with a new glycosyl donor, 2β,3α-dibromo-2-deoxy-NeuAc methyl ester, selectively gave the corresponding β-glycosides in high yields. The 3α-bromo-glycosides were debrominated with tri-n-butylstannane to the corresponding glycosides, which were deprotected to give the free glycosides having a β-NeuAc.
Transition Metal Phosphine Complexes Possessing a Phase Transfer Function. Preparation and Catalytic Reactivity of Palladium Phosphine Complexes Containing Crown Ethers
Authors: Okano Tamon , Iwahara Masahiro , Suzuki Takayoshi , Konishi Hisatoshi , Kiji Jitsuo 
Published: July 2006

Abstract
Crown-functionalized triarylphosphines and their palladium complexes were synthesized and characterized. The palladium complexes were found to fulfil the concerted function of the transition metal catalyst and the phase transfer catalyst in the two-phase reduction of 1-chloromethylnaphthalene with formate salts.
Thermolysis of Dimethylgold(III) Complexes Having a Nucleoside Ligand
Authors: Mizuno Yuuko , Komiya Sanshiro 
Published: July 2006

Abstract
Relative ease of dissociaiton of nucleosides from dimethylgold(III) complexes, estimated from the kinetics of thermolysis of dimethylgold(III) complexes having a nucleoside ligand, AuMe2(nucleoside)X, lies in the order of Cyd &lt;Guo &lt;Ado&lt;&lt;dThd.
Misakinolide-A, an Antitumor Macrolide from the Marine Sponge Theonella Sp.
Authors: Sakai Ryuichi , Higa Tatsuo , Kashman Yoel 
Published: July 2006

Abstract
A highly active antitumor macrolide, misakinolide-A has been isolated from the sponge Theonella sp. The gross structure was determined by extensive NMR studies including homo- and heteronuclear COSY experiments.
Fourier Transform Spectroscopy on the ν1 Band of OCSe
Authors: Sueoka Kazuo , Konno Toichi , Hamada Yoshiaki , Uehara Hiromichi 
Published: July 2006

Abstract
The ν1 fundamental band of OCSe in natural abundance was observed near 2000 cm−1 with a resolution of 0.005 cm−1. Results of the analysis are given for 16O12C80Se and 16O12C78Se.
Synthesis of Pyrrolizidinediones from Cyclic N,N-Diacylamino Acids
Authors: Bestmann Hans Jürgen , Moenius Thomas , Soliman Fouad 
Published: July 2006

Abstract
Cyclic N,N-diacylami no acids can be converted by reaction with N-phenylketeniminylidenetriphenylphosphorane into pyrrolizidinediones.
A Convenient Method for the Hydrolysis of Diethylthioacetals Catalyzed by Trityl Perchlorate
Authors: Ohshima Masahiro , Murakami Masahiro , Mukaiyama Teruaki 
Published: July 2006

Abstract
Treatment of diethylthioacetals with two equivalents of trityl methyl ether in the presence of a catalytic amount of trityl perchlorate, and successive quenching with aqueous sodium hydrogencarbonate gave parent carbonyl compounds, hydrolyzed products, in high yields under mild conditions. According to this method, it is also possible to hydrolyze diethylthioacetals selectively even when another thioacetal, such as 1,3-dithiane, coexisted in the same molecule.
Transition Metal Ketene Complexes as Active Intermediate for Catalytic Carbonylation of Geminal Dibromoalkanes
Authors: Miyashita Akira , Kihara Takehiro , Nomura Kotohiro , Nohira Hiroyuki 
Published: July 2006

Abstract
MX2(PPh3)2 (M= Ni, Pd, Pt; X= Cl, Br) and Co2(CO)8 catalyze alkoxy- and aminocarbonylation of geminal dibromoalkanes, R1R2CBr2 (R1, R2= H and CH3). In the course of the catalysis, initial formation of the transition metal ketene complexes, M(CH2=C=O)L2, was followed by the reaction with alcohols to yield carbalkoxymethyl metal intermediate leading to esters.
Lead-Promoted Allylation of Carbonyl Compounds with Allyl Bromide
Authors: Tanaka Hideo , Yamashita Shiro , Hamatani Takeshi , Ikemoto Youichi , Torii Sigeru 
Published: July 2006

Abstract
A lead-promoted allylation of carbonyl compounds with allyl bromide in a Pb/Bu4NBr/Me3SiCl/DMF system has been performed in good yields with high chemoselectivities: RCHO &gt; R1R2CO &gt; R1CH(OH)CO2R2&gt;&gt; R1CO2R2, lactone, (RCO)2O, and RCOCl.
Substituent Effects on the Populations of Rotational Isomers in 9-(Aryloxymethyl)-1,4-dimethyltriptycenes. Implications for the Presence of CH3···O Hydrogen Bond
Authors: Tamura Yoshio , Yamamoto Gaku , Oki Michinori 
Published: July 2006

Abstract
The population ratios ±sc/ap in 9-(aryloxymethyl)-1,4-dimethyltriptycenes were determined by 1H NMR spectroscopy. Whereas electron-withdrawing substituents favor the ap rotamer, electron-donating substituents favor the ±sc rotamer in a relative sense. The results are attributed to the presence of weak CH3···O intramolecular hydrogen bond in the ±sc form.
Cyclodimerization of Benzylideneacetophenone and Its Derivatives by Use of Triiron Dodecacarbonyl
Authors: Ueda Tatsuo , Otsuji Yoshio 
Published: July 2006

Abstract
The reaction of benzylideneacetophenone and its derivatives with Fe3(CO)12 in refluxing toluene gives 1-aroyl-2,4,5-triarylcyclopentene derivatives via (η4-enone)tricarbonyliron complexes. The mechanistic feature of this reaction is presented.
Formation of an Oxirane by the Reaction of 9-Diazofluorene with 2,3-Dichloro-5,6-dicyanobenzoquinone and Inclusion of Some Solvents in the Oxirane
Authors: Shingaki Tadao , Tsujita Mitsuji , Nagai Toshikazu 
Published: July 2006

Abstract
Reaction of 9-diazofluorene with 2,3-dichloro-5,6-dicyanobenzoquinone gave an oxirane. It was found that the oxirane formed 1 : 1 molecular complexes with solvents on recrystallizing from some solvents such as acetone, acetonitrile, 1,4-dioxane, and benzene.
Insertion Reactions of Dimethylgermanone [(CH3)2Ge=O] into Si–O and Si–Cl Bonds
Authors: Kang Kyung-Tae , Manuel Georges , Weber William P 
Published: July 2006

Abstract
Flash vacuum co-pyrolysis (FVP) of 3,3-dimethyl-6-oxa-3-germabicyclo[3,1,0]hexane with various trapping reagents has been carried out. Adducts which result from insertion of dimethylgermanone into Si–O and Si–Cl bonds have been outlined.
Synthesis of 3,5-Bis(2,5,8-trioxaeicosyl)-18-crown-6 and Its Formation of Bilayer Membranes
Authors: Gu Xue-Ping , Ikeda Isao , Okahara Mitsuo , Kim Jeman 
Published: July 2006

Abstract
Dialkyl crown ether (4) containing oligooxyethylene group which can be dispersed in water to form a stable opalescent solution by sonication was synthesized. Transparency of the aqueous solution of 4 was enhanced by the addition of KCl, showing the salt-in effect. Electron microscopy suggested that 4 forms the myelin-like fingerprint structure and vesicle-like aggregates.
One-step Synthesis of Straight-chain Carbohydrates from Formaldehyde and Syngas
Authors: Okano Tamon , Ito Hideo , Konishi Hisatoshi , Kiji Jitsuo 
Published: July 2006

Abstract
Straight-chain carbohydrates such as trioses, tetroses, pentoses, and hexoses are readily obtained in good yields by a reaction of formaldehyde with syngas in the presence of RhCl(CO)(PPh3)2 and tertiary amine. A selective synthesis of trioses or tetroses is also described.
A Photoallylation of N-Methylarenedicarboximides by Allylsilanes
Authors: Kubo Yasuo , Imaoka Takayuki , Shiragami Tsutomu , Araki Takeo 
Published: July 2006

Abstract
The photoallylation of N-methylarenedicarboximides by allylsilanes in acetonitrile or methanol efficiently occurred at a carbonyl carbon atom and at an aromatic carbon atom possibly via single electron transfer.
SYNTHESIS OF A NEW PHOSPHORUS-FUNCTIONALIZED NITRILE OXIDE, α-(DIETHYLPHOSPHONO)ACETONITRILE OXIDE, AND CYCLOADDITION LEADING TO 3-(DIETHYLPHOSPHONOMETHYL)-Δ2-ISOXAZOLINES
Authors: Tsuge Otohiko , Kanemasa Shuji , Suga Hiroyuki 
Published: July 2006

Abstract
Cycloaddition of α-(diethylphosphono)acetonitrile oxide, a new phosphorus-functionalized nitrile oxide, leads to 3-phosphonomethyl-Δ2-isoxazolines which are useful as Δ2-isoxazoline unit-introducing reagents.
Contribution of Scalar Coupling Pathway in the Relaxation of Germane and Tetrahalogermanes
Authors: Harazono Toshie , Tanaka Katsumi , Takeuchi Yoshito , Kakimoto Norihiro 
Published: July 2006

Abstract
73Ge relaxation in GeH4, GeCl4, and GeBr4, and 1H relaxation in GeH4 have been studied, and found to contain a scalar coupling mechanism in a spin-spin relaxation. Furthermore, a scalar spin coupling constant, J(73Ge–35Cl) = 24Hz, was obtained.
Photochemical Rearrangement of 2-Substituted 4-Alkylidene-2,3-epoxy-1-tetralone to 3-(2-Oxoalkylidene)-1-indanone
Authors: Maruyama Kazuhiro , Osuka Atsuhiro , Nakagawa Katsuhiko , Tabuchi Kenzo , Shimizu Hirohito , Suzuki Hitomi 
Published: July 2006

Abstract
Irradiation of 2-substituted 4-alkylidene-2,3-epoxy-1-tetralone results in the rearrangement to 3-(2-oxoalkylidene)-1-indanone or the E-Z isomerization around the double bond. These photoreactions are suggested to occur from the (π,π*) triplet excited state.
A New Grafting Method by Use of Polymeric Sulfonium Salt. Grafting of Bicyclo Ortho Ester onto Polystyrene
Authors: Uno Hitomi , Endo Takeshi 
Published: July 2006

Abstract
Polymer containing sulfonium salt structure, which was obtained by the polymerization of p-vinylbenzyl tetramethylenesulfonium hexafluoroantimonate, was found to behave as a polymeric thermal latent catalyst for the polymerization of bicyclo ortho ester and lead to the grafted polymer.
Triplet States of Cyclic Olefins and Dienes. On the Lifetimes and Chemical Reactivities Studied by Pulse Radiolysis
Authors: Nakabayashi Kenichi , Toki Susumu , Takamuku Setsuo 
Published: July 2006

Abstract
Triplet lifetimes of cyclic olefins and dienes measured by pulse radiolysis are dependent on the ring size which affects the most stable conformation of the triplet. In the case of cyclic nonconjugated dienes, an intramolecular biradical formation is an important decay process when the reaction is sterically allowed.
Palladium(0) Catalysed Conversion of α-Nitroepoxides into 1,2-Diketones
Authors: Vankar Yashwànt D , Singh Surendra P 
Published: July 2006

Abstract
A variety of α-nitroepoxides have been found to undergo conversion to the corresponding 1,2-diketones with Pd(PPh3)4. Two examples form α-nitroketones instead of 1,2-diketones.
Highly Stereoselective Photoisomerization of all-trans Naphthyl Retinal Analog to the 11-cis Isomer by Protein Mediation
Authors: Tsujimoto Kazuo , Ohmura Ken , Ohashi Mamoru , Hara Reiko , Hara Tomiyuki , Ozaki Koichi , Watanabe Masakatsu 
Published: July 2006

Abstract
Protein-mediated photoisomerization of all-trans Np-retinal stereospecifically gave the 11-cis isomer whose structure was determined, whereas irradiation of all-trans Np-retinal in acetonitrile furnished the four isomers, none of which was the 11-cis isomer.
Single Crystal Growth of Sparingly Soluble Adducts of Lewis Acids with Bases
Authors: Hihara Goro , Miyamae Hiroshi , Nagata Miharu 
Published: July 2006

Abstract
A method is described for growing single crystals from a solution where a base’s concentration is controlled so that an adduct to be grown is equilibrated with the solution. A slight difference in its solubilities at two different temperatures is responsible for their growth process. The technique is valuable for adducts which cannot readily be grown in other ways owing to their low solubilities.
Synthesis of New Trioctahedral Mg-Smectite
Authors: Torii Kazuo , Iwasaki Takashi 
Published: July 2006

Abstract
New trioctahedral Mg-smectites were synthesized hydrothermally from homogeneous Mg–Si precipitates having a wide range of compositions, i.e., from Mg=3.2 to 6, vs. Si=8 in the atomic ratios. Dispersed solutions of the synthetic smectites formed transparent gels possessing good rheological properties.
Oxidoreduction between Cycloalkanols and Cycloalkanones in the Cultured Cells of Nicotiana tabacum. Correlation of the Reaction Rate with the 13C NMR Chemical Shift of the Carbonyl Carbon
Authors: Suga Takayuki , Izumi Shunsuke , Hirata Toshifumi 
Published: July 2006

Abstract
The enzyme system responsible for the oxidoreduction between cycloalkanols and their corresponding cycloalkanones in the cultured cells of Nicotiana tabacum was found to be alcohol dehydrogenase which is similar to the dehydrogenase from tea seeds and horse liver. The rate constants and the equilibrium constants of the oxidoreduction between the cycloalkanols and their corresponding cycloalkanones with this enzyme system were well correlated with the 13C NMR chemical shift of the carbonyl carbon of the oxidation products, i.e., the cycloalkanones.
Synthesis of Cyclopentane Derivatives by Electrochemical Reduction of 1,5-Dibromopentane Derivatives
Authors: Mitani Michiharu , Takeuchi Hiroshi , Koyama Kikuhiko 
Published: July 2006

Abstract
When 1,5-dibromopentane derivatives, which were prepared by CuBr-catalyzed photochemical reaction of 1,3-dibromopropane or its derivatives with electron-deficient olefins, were subjected to electrochemical reduction in THF or DMSO solution, cyclopentane derivatives were obtained.
Photochemical Generation of 1,1′-Ethylenebis(pyridinyl) Diradical from Its Cyclomers
Authors: Muramatsu Takashi , Hanaya Kaoru , Ikegami Yusaku 
Published: July 2006

Abstract
Reduction of 1,1′-ethylenebis(pyridinium) dibromide with sodium amalgam afforded the cyclomers of 1,1′-ethylenebis(pyridinyl) diradical. Meso and dl forms of the cyclomers are convertible to each other. Photolysis of the cyclomers showed a triplet ESR spectrum characteristic of the diradical.
STEREOSELECTIVE PREFERENCE OF BOVINE SERUM ALBUMIN IN THE BURST PHASE OF REACTION WITH AMINO ACID p-NITROPHENYL ESTERS
Authors: Nango Mamoru , Kimura Yoshiharu , Kanda Shinichi , Ihara Yasuji , Koga Joichi , Kuroki Nobuhiko 
Published: July 2006

Abstract
Bovine serum albumin exhibits remarkable acylation efficiency and stereoselectivity in the hydrolysis of optically active amino acid p-nitrophenyl esters. A stereoselective ratio, kD/kL = 66 has been observed with added Triton-x. The hydrolysis rate and stereoselectivity depend on the structure of the substrate and of added surfactants.
INTERACTION OF DNA WITH ANTITUMOR ACTIVE PLATINUM COMPLEXES. PLATINUM COMPLEXES INVOLVING MESO DIAMINE LIGAND GAVE TWO Pt-d(GpG) ADDUCTS
Authors: Inagaki Kenji , Ninomiya Chikako , Kidani Yoshinori 
Published: July 2006

Abstract
Reaction products of Pt(meso-diamine)2+ involving bulky substituted group with DNA were investigated by using enzymatic digestion technique. Main Pt-adducts were complexes with an intrastrand crosslink between two adjacent guanine bases through N7, N7. Stereoselectivity arised from steric hindrance was observed.
PHOTOSENSITIZED DIMERIZATION OF PHENOL IN PORPHYRIN–QUINONE–PHENOL SYSTEM
Authors: Maruyama Kazuhiro , Furuta Hiroyuki 
Published: July 2006

Abstract
Photosensitized dimerization of 4-methoxyphenol was observed upon irradiation of porphyrin in the presence of quinone. Quantum yield for dimer was depended upon the concentration and reduction potential of quinones used. Free radical coupling mechanism was confirmed by means of ESR and CIDNP techniques.
KINETIC AND THERMODYNAMIC PARAMETERS FOR THE PHEOPHYTIN a/a′ EPIMERIZATION IN ORGANIC SOLVENTS
Authors: Watanabe Tadashi , Nakazato Masataka , Honda Kenichi 
Published: July 2006

Abstract
The epimerization rate constants and equilibrium compositions for the pheophytin a/a′ pair have been determined for the first time in ten organic solvents. The rate constant varies by five orders-of-magnitude with the nature of solvent. A free energy diagram for the epimer pair is constructed from temperature dependencies of the two parameters in N,N-dimethylformamide.
CERIUM(IV)-SULFITE CHEMILUMINESCENT SYSTEM. ADDITION OF SODIUM DODECYLSULFATE FOR LINEARITY IMPROVEMENT AND INTERFERENCE REDUCTION
Authors: Takeuchi Koji , Ibusuki Takashi 
Published: July 2006

Abstract
The range in which chemiluminescence intensity of the cerium(IV) sulfate-sulfite system changes linearly with sulfite concentration has been expanded more than one order of magnitude (0.2–600 ng SO2 ml−1) by addition of sodium dodecylsulfate (SDS) to sample solutions. In addition, interferences from nitrite and halide ions were greatly reduced. The optimum concentration of SDS was found to be 1 g l−1 which was lower than the critical micelle concentration. The role of SDS was briefly discussed in terms of the interaction between water and the excited molecules.
IMMOBILIZATION OF COLLOIDAL PLATINUM PARTICLES ONTO POLYACRYLAMIDE GEL HAVING AMINO GROUPS AND THEIR CATALYSES IN HYDROGENATIONS OF OLEFINS
Authors: Hirai Hidefumi , Ohtaki Michitaka , Komiyama Makoto 
Published: July 2006

Abstract
Colloidal platinum dispersions, prepared by photo-reduction of tetrachloroplatinate(II) ion in the presence of a copolymer of N-vinyl-2-pyrrolidone and acrylamide, are treated with polyacrylamide gel having amino groups, resulting in stable immobilization of colloidal particles onto the gel. The immobilized catalysts exhibit high activities in hydrogenations of olefins at 30 °C under 1 atm.
PLATINUM COMPLEX CATALYZED TRANSFORMATION OF AMINE. N-ALKYLATION AND N-ALLYLATION USING PRIMARY ALCOHOLS
Authors: Tsuji Yasushi , Takeuchi Ryo , Ogawa Hiroshi , Watanabe Yoshihisa 
Published: July 2006

Abstract
Amines reacted with primary alcohols in the presence of a platinum complex catalyst at 120–180 °C to give N-alkylated or N-allylated compounds.
CATALYTIC REARRANGEMENT OF TETRAHYDRODICYCLOPENTADIENE TO ADAMANTANE OVER Y-ZEOLITE
Authors: Honna Kosaku , Sugimoto Michio , Shimizu Nobuaki , Kurisaki Konomu 
Published: July 2006

Abstract
Bifunctional rare-earth exchanged Y zeolite, has the high catalytic activity for the synthesis of adamantane from tetrahydrodicyclopentadiene in the presence of hydrogen and hydrogen chloride, in a fixed bed flow system. The catalyst deactivated by pore plugging with deposited hydrocarbons can be almost completely regenerated by hydrocracking.