bluuebunny/crossref_metadata_2025_split huggingface dataset:
PHOTOCHEMICAL REACTION OF 2-CYANOQUINOLINE 1-OXIDES IN AN ACIDIC ALCOHOL. SYNTHESIS OF 6-ALKOXY-2-CYANOQUINOLINES
Authors: Kaneko Chikara , Hasegawa Hiroshi , Tanaka Seiji , Sunayashiki Kosaku , Yamada Sachiko 
Published: July 2006

Abstract
The photolysis of 2-cyanoquinoline 1-oxide and its 4-methyl derivative in a variety of alcohols in the presence of conc. HCl gives the corresponding 6-alkoxy-and 6-chloroquinoline 2-carbonitriles, whose relative ratio depends on the concentration of the acid and the kind of alcohols. Similarly, the photolysis of these N-oxides in an alcohol in the presence of cone. H2SO4 gives 6-alkoxyquinoline 2-carbonitriles as the main substitution product.
A mechanism is postulated for this novel photo-alkoxylation reaction.
ASYMMETRIC HYDROGENATION OF SILYL ENOL ETHERS. AN ALTERNATIVE ROUTE TO OPTICALLY ACTIVE ALCOHOLS
Authors: Tanaka Masato , Watanabe Yoshihisa , Mitsudo Take-aki , Yasunori Yukio , Takegami Yoshinobu 
Published: July 2006

Abstract
Asymmetric synthesis of alcohols has been achieved via hydrogenation of silyl enol ethers catalyzed by rhodium complexes with a variety of optically active phosphine ligands.
MICROWAVE SPECTRUM OF CHLOROMETHYLGERMANE
Authors: Nakagawa Jun , Hayashi Michiro 
Published: July 2006

Abstract
Microwave spectra of five isotopic species of chloromethylgermane were studied in the 8000–34000 MHz region. The barrier height of the internal rotation was determined to be 1733±30 cal/mole from the observed A-E splittings of the torsional excited state. The quadrupole coupling constants were obtained from the hyperfine structures.
CHEMICAL EFFECT ON X-RAY K-ABSORPTION EDGES OF MANGANESE, CHROMIUM, AND VANADIUM
Authors: Asada Eiichi 
Published: July 2006

Abstract
The narrow absorption peak appearing on the lower energy side of the K-absorption edges of manganese, chromium, and vanadium in the form of oxides has been specially investigated. The appearance of this peak depends on the oxidation number of metal atoms, rather than on their coordination number.
THE PHOTO-INDUCED ALCOHOLYSIS OF BENZOTRICHLORIDE
Authors: Ishigami Tatsuzo , Kinoshita Yasunori , Sugimori Akira 
Published: July 2006

Abstract
Benzotrichloride undergoes a photochemical solvolysis reaction in alcohol forming alkyl benzoate. The reaction is greatly accelerated in the presence of oxygen. It is suspected the involvement of the normally forbidden S0→T1 transition in the course of the reaction.
ESR SPECTRA OF ASCORBIC ACID RADICALS IN APROTIC SOLVENTS
Authors: Kirino Yutaka 
Published: July 2006

Abstract
ESR spectral parameters of the radicals from l-ascorbic acid and its analogs in aprotic solvents are reported and compared with those for the same radicals in aqueous solutions. Marked differences in g factor as well as shifts (up to 16%) in proton and 13C hyperfine coupling constants have been observed. Conformational changes in the side chain result in the C6 protons becoming magnetically nonequivalent in the radical from l-ascorbic acid while equivalent in the radical from d-araboascorbic acid.
MOLECULAR STRUCTURE OF TRIMETHYLENE SULFIDE STUDIED BY GAS ELECTRON DIFFRACTION
Authors: Karakida Ken-ichi , Kuchitsu Kozo , Bohn Robert K 
Published: July 2006

Abstract
The skeletal structure of trimethylene sulfide (thietane) has been studied by gas electron diffraction. The bond distances (rg) and angles (rα) with their limits of error are: r(C-S) = 1.847±0.002 Å, r(C-C) = 1.550±0.003 Å, r(C-H) = 1.101±0.006 Å, ∠CSC = 77.0±0.5° and the effective average value of the dihedral angle, ∠C2SC4-C2C3C4 = 26±4°.
PREPARATION AND ISOMERIZATION OF THE ISOMERS OF ETHYLENEDIAMINE-N,N′-DIACETATO(TRIMETHYLENEDIAMINE)COBALT(III) ION
Authors: Kuroda Kashiro 
Published: July 2006

Abstract
Two isomers of ethylenediamine-N,N′-diacetato(trimethylenediamine)cobalt(III) perchlorate, α- and β-[Co(EDDA)(tn)] ClO4, have been synthesized, and the isomerization from the β-isomer to the α-isomer has been examined kinetically in carbonate buffer solutions. The reaction character has been compared with that of the corresponding ethylenediamine complex.
PHOTOLYSIS OF Δ2-TETRAZOLINES: FORMATION OF DIAZIRIDINES
Authors: Akiyama Tetsuo , Kitamura Tohru , Isida Tyuzo , Kawanisi Mituyosi 
Published: July 2006

Abstract
UV-irradiation of Δ2-tetrazolines (1) resulted in the elimination of nitrogen molecule to afford 1,2,3-trisubstituted diaziridines (2). This procedure constitutes a novel method of formation of diaziridines, especially 1-aryldiaziridines, in yields of preparative value.
THE REACTION OF TRIMETHYLSILYL SULFIDES WITH CARBOXYLIC ESTERS. A CONVENIENT METHOD FOR THE PREPARATION OF THIOLESTERS
Authors: Mukaiyama Teruaki , Takeda Takeshi , Atsumi Kunio 
Published: July 2006

Abstract
In the presence of AlCl3, trimethylsilyl sulfides react with carboxylic esters to give the corresponding thiolesters in high yields.
γ-INDUCED ADDITION REACTION OF METHANOL TO METHYL OLEATE
Authors: Sugii Atsushi , Shimada Seiji , Nagai Kumiko , Kitahara Kazuta 
Published: July 2006

Abstract
Methyl 9- and 10-methoxystearates were obtained by the γ-induced addition reaction of methanol to methyl oleate in the absence or presence of methanol. Yield of the adducts increased with the increase of methanol added in the reaction systems.
CORRELATION OF CATALYTIC ACTIVITY OF METAL IONS IN AUTOXIDATION OF 1,2-DIHYDROXYNAPHTHALENE-4-SULFONATE AND STABILITY CONSTANT OF METAL COMPLEXES
Authors: Ito Sotaro , Miura Norio 
Published: July 2006

Abstract
The catalytic activities of 9 metal ions in the autoxidation of potassium salt of 1,2-dihydroxynaphthalene-4-sulfonate in aqueous solution were measured. All the metal ions including the first transition metals were found to accelerate the autoxidation. The catalytic activities of the metal ions were correlated with the stability constants of the substrate-metal ion complexes.
CRYSTALLIZATION OF AN AMORPHOUS OXIDE IN La–Nb–O SYSTEM
Authors: Yajima Seishi , Okamura Kiyohito , Shishido Toetsu 
Published: July 2006

Abstract
An amorphous oxide of which composition corresponds to La2O3·5Nb2O5was prepared by making use of an impact quenching technique. The phase transformation from an amorphous to an equilibrium crystalline state was studied by means of differential thermal analysis (DTA) and X-ray diffraction. From the experimental results, the crystallization process was characterized mainly by the two successive transitions, i.e., glassy phase → a new metastable phase → stable phase of La2O3·5Nb2O5.
A NEW METHOD FOR MEASURING Sn←S1 ABSORPTION SPECTRA
Authors: Kobayashi Takayoshi , Matsumoto Satoru , Nagakura Saburo 
Published: July 2006

Abstract
A new method for measuring absorption spectra of transient species in the nanosecond time scale was developed. It is applicable to highly fluorescent systems and gives accurate results in spite of its rather simple optical alignment. The method was applied to the 1,2,4,5-tetracyanobenzene-methyl-substituted benzene and 1,4-dicyanobenzenepyrene systems.
X-RAY PHOTOELECTRON SPECTROSCOPY STUDIES OF La2O3-Cr2O3 CATALYSTS
Authors: Okamoto Yasuaki , Adachi Kiyoshi , Imanaka Toshinobu , Teranishi Shiichiro 
Published: July 2006

Abstract
X-ray photoelectron spectra of La2O3-Cr2O3 catalysts with different compositions were measured. On the basis of the binding energies of Cr2P3⁄2 subshell, it is concluded that there exist the hexa- and tri-valent chromiums in these catalysts, and that when the content of chromia becomes larger, the content of the trivalent chromium becomes predominant.
PREPARATION AND REACTION OF N-BENZIMIDOYLSULFILIMINES
Authors: Fuchigami Toshio , Odo Keijiro 
Published: July 2006

Abstract
N-Chlorobenzamidine [I] reacted readily with dimethyl sulfide in acetonitrile to form N-benzimidoylaminodimethylsulfonium chloride [II]. Treatment of [II] with sodium hydroxide gave N-benzimidoyl-S,S-dimethylsulfilimine [III] quantitatively. The thermolysis of acyl derivatives of [III] gave rise to 1,2,4-oxadiazoles.
HOMOALLYLIC REARRANGEMENTS OF 4-SPIRO[2.4]HEPTYL RADICAL AND 4-SPIRO[2.5]OCTYL RADICAL
Authors: Suzuki Mikio , Murahashi Shun-Ichi , Sonoda Akio , Moritani Ichiro 
Published: July 2006

Abstract
Irradiation of azobis(4-spiro[2.4]heptane) and azobis(4-spiro[2.5]octane) afforded homoallylically rearranged products via the corresponding titled radicals, in which the rigid geometry locks the cyclopropylcarbinyl radical in the stable bisected conformation.
PREPARATION OF POLYMERS WITH SULFILIMINE STRUCTURE
Authors: Kise Hideo , Serita Hajime , Seno Manabu , Asahara Teruzo 
Published: July 2006

Abstract
The reaction of poly(p-vinylbenzylalkyl sulfide) and poly(p-vinylbenzylphenyl sulfide) with chloramine-T afforded polymers with pendant groups of sulfilimine structure. The same polymers were obtained by radical polymerization of N-tosyl-S-alkyl- and N-tosyl-S-phenyl-S-p-vinylbenzylsulfilimines.
PHOTOCHEMISTRY OF 1,2-DIPHENYLCYCLOBUTENE IN PROTIC SOLVENTS
Authors: Sakuragi Masako , Hasegawa Masaki 
Published: July 2006

Abstract
Irradiation of 1,2-diphenylcyclobutene (1) in methanol solution afforded a mixture of α-(1-phenylcyclopropyl)benzyl methyl ether and 1,2-diphenylcyclobutyl methyl ether. In acetic acid corresponding esters were obtained. Evidence supporting the involvement of a singlet species was obtained by the finding that the fluorescence of 1 is substantially quenched on addition of methanol to the solution of 1 in n-hexane.
CATALYTIC ASYMMETRIC HYDROGENATION OF BENZIL WITH BIS(DIMETHYLGLYOXIMATO)COBALT(II)-CHIRAL AMINE COMPLEX. EFFECTS OF STRUCTURAL VARIATION OF CHIRAL AMINE AND REACTION TEMPERATURE
Authors: Ohgo Yoshiaki , Takeuchi Seiji , Natori Yukikazu , Yoshimura Juji 
Published: July 2006

Abstract
It was found in the titled reaction that (1) the configuration of the predominant isomer is unequivocally determined by those of the vicinal carbons attaching amino and hydroxyl groups, (2) the hydroxyl group of chiral aminoalcohols plays an extremely important role in this asymmetry-transfer, and (3) the optical yield increases with lowering the reaction temperature (O.Y.: 71% at 10°C).
A CONVENIENT METHOD FOR THE PREPARATION OF VINYL SULFIDES AND OLEFINS BY THE USE OF TiCl4 AND Zn
Authors: Mukaiyama Teruaki , Shiono Manzo , Sato Toshio 
Published: July 2006

Abstract
β-Hydroxythioacetals or β-hydroxysulfides, prepared by the reactions of α-lithio thioacetals or α-lithio sulfides with aldehydes or ketones, were converted into vinyl sulfides or olefins in good yields by the treatment with TiCl4 and Zn.
SYNTHESIS AND SOME PROPERTIES OF A LAYER-TYPE INORGANIC–ORGANIC COMPLEX OF FeOCl AND PYRIDINE
Authors: Kanamaru Fumikazu , Yamanaka Shoji , Koizumi Mitsue , Nagai Siro 
Published: July 2006

Abstract
New intercalated compounds of FeOCl and pyridine were synthesized by soaking FeOCl in pyridine vapor at a temperature range from 30° to 120°C. Number of pyridine molecules per FeOCl in the product was, within the experimental error, a rational number, 1/n where n=3 and 4 depending on the temperature of preparation. The complexes have an orthorhombic unit-cell with a=3.78(1), b=13.45(3), c=3.30(l) Å. Mössbauer effect study on FeOCl (pyridine)1⁄3 at room temperature showed that the isomershift relative to Fe metal and the quadrupole splitting were 0.36(1)mm/sec and 0.92(1)mm/sec respectively. The E.S.R. spectrum of FeOCl (pyridine)1⁄3 represented a broad singlet absorption line at g=2.003 with Hmsl=200 gauss, suggesting the existence of conduction electrons resulted from partial transfer of the lone pair electrons of the nitrogen atom into FeOCl layer.
THE EXCITED-STATE REACTIONS OF TRIPTYCENES. II. THE CARBENE MECHANISM FOR PHOTOISOMERIZATION OF TRIPTYCENE
Authors: Iwamura Hiizu 
Published: July 2006

Abstract
Irradiation of triptycene (1) in methanol gives 9-(2-methoxymethylphenyl)-fluorene (4) in good yield. The reaction is considered to proceed through formation of o-(9-fluorenyl)-phenylcarbene (9) followed by attack with the solvent. When the carbene 9 is generated independently by the photolysis of the diazo compound 8 in cyclohexane, the normal photoisomer 2 of 1 is obtained.
PREPARATION AND OPTICAL RESOLUTION OF TRIS(TETRAMETHYLENEDIAMINE) COBALT(III) COMPLEX
Authors: Fujita Junnosuke , Ogino Hiroshi 
Published: July 2006

Abstract
A new red complex of the luteo type [Co(tmd)3]Br3, where tmd denotes tetramethylenediamine, has been prepared from Co(II) nitrate and tmd in dimethylsulfoxide(DMSO) by air oxidation. The complex has been resolved into optical isomers. The (−)D-isomer shows a weak positive and a strong negative circular dichroism band in the first absorption band region.
THE EFFECT OF THE SPIN MULTIPLICITY OF SENSITIZERS ON THE FORMATION OF FREE RADICAL CAGE REACTION PRODUCT IN THE IRRADIATION OF DIBENZOYL PEROXIDE
Authors: Tokumaru Katsumi , Ohshima Akinobu , Nakata Toshio , Sakuragi Hirochika , Mishima Tamako 
Published: July 2006

Abstract
Decomposition of dibenzoyl peroxide with singlet sensitization gives phenyl benzoate resulting from the cage recombination between a benzoxyl and a phenyl radical as noticeably as with the direct photolysis; on the contrary, the triplet sensitization gives only low yield of phenyl benzoate.
ASYMMETRIC HYDROGENATION OF α-OXOCARBONYL COMPOUNDS CATALYZED BY BIS(DIMETHYLGLYOXIMATO)COBALT(II)-CHIRAL AMINE COMPLEX
Authors: Ohgo Yoshiaki , Natori Yukikazu , Takeuchi Seiji , Yoshimura Juji 
Published: July 2006

Abstract
Bis(dimethylglyoximato)cobalt(II)-quinine-catalyzed asymmetric hydrogenation of α-diketones afforded optically active reduction products, while that of α-oxocarboxylates and diacetyl gave not only simple reduction products but also reductive dimerization products with optical activity. In general, the optical yields of simple reduction products in cases of α-diketones (56–73%) were higher than those in cases of α-oxocarboxylates (12–20%).
PHOTOELECTRON SPECTRA OF TETRACYANOETHYLENE(TCNE) AND TETRACYANOQUINODIMETHANE(TCNQ)
Authors: Ikemoto Isao , Samizo Kuniko , Fujikawa Takashi , Ishii Kikujiro , Ohta Toshiaki , Kuroda Haruo 
Published: July 2006

Abstract
The photoelectron spectra of TCNE and TCNQ in the gaseous state were measured by stimulating with He I resonance line. The first ionization potential is determined to be 11.77 eV for TCNE and 9.61 eV for TCNQ. The interpretations of the observed photoelectron spectra are carried out with the aids of the photoelectron spectroscopic data of the related compounds and the results of CNDO/2 calculation.
A LIQUID-PHASE ONE-STAGE PROCESS FOR KETAZINE SYNTHESIS DIRECTLY FROM BENZOPHENONE, AMMONIA AND OXYGEN IN THE PRESENCE OF ZnCl2 AND CuCl
Authors: Hayashi Hiromu , Kawasaki Kengo , Murata Tsutomu 
Published: July 2006

Abstract
A new procedure for the synthesis of benzophenone azine is described. An equi-molar mixture of NH3 and O2 was passed through benzophenone in the presence of ZnCl2 and CuCl at 200°C to obtain benzophenone azine in good yield.
ANODIC VOLTAMMETRY AND ESR STUDIES OF P-PHENYLENEDIAMINE AND SOME OF ITS DERIVATIVES IN ACETONITRILE
Authors: Yao Toshio , Musha Soichiro , Munemori Makoto 
Published: July 2006

Abstract
The electrochemical oxidation of p-phenylenediamine and its derivatives was studied on platinum electrode in acetonitrile. The oxidation mechanism was composed of two successive one-electron reversible waves. The hyperfine ESR spectra of the cation radicals were observed by electrolysis on the first wave. The generation of the same cation radicals could be performed by electrolysis on the second wave, indicating the presence of an electron exchange reaction between the dication and the parent molecule in solution.
NEW ROUTES TO 1,2-DIAZOLES WITH A FUSED RING SYSTEM BY REDUCTIVE AND OXIDATIVE CYCLIZATIONS
Authors: Lee Joung Hee , Matsumoto Akira , Yoshida Masayuki , Simamura Osamu 
Published: July 2006

Abstract
Heating aromatic or heteroaromatic compounds carrying a carbonyl and an arylazo group at adjacent nuclear positions with triethyl phosphite resulted in the formation of a 1,2-diazole ring through reductive cyclizations. Similar, but oxidative, cyclizations were effected by the action of selenium dioxide on compounds with a methylene group at an appropriate position.
THE SYNTHESIS AND SOME PROPERTIES OF 3H-CYCLOHEPT[a]AZULEN-3-ONE
Authors: Saito Motoyasu , Morita Tadayoshi , Takase Kahei 
Published: July 2006

Abstract
3H-Cyclohept[a]azulen-3-one (azuleno[1,2-d]tropone) (1) was synthesized, starting from 2-styrylazulene (2). In trifluoroacetic or dil. sulfuric acid, 1 exists in hydroxycyclohept[a]azulenylium ion (A1), while it exists in a dication (C) in cone. sulfuric acid.
SOLVENT EFFECT ON THE ORIENTATION OF BENZOPHENONE GROUPS IN THE SIDE CHAIN OF POLY-γ-p-BENZOYLBENZYL-l-GLUTAMATE
Authors: Ueno Akihiko , Toda Fujio , Iwakura Yoshio 
Published: July 2006

Abstract
The orientation of benzophenone groups in the side chain of poly-γ-p-benzoylbenzyl-l-glutamate (PBBLG) has been studied together with its conformation by infrared, circular dichroism and ultraviolet spectra. The results suggest that the benzophenone groups in the side chain of α-helical PBBLG are more rigidly orientated in hexafluoroisopropanol (HFIP) than in dichloroethane (DCE).
HIGHLY ACTIVE POLYMER-SUPPORTED Pd COMPLEX. A NEW SYNTHETIC METHOD AND ITS USE IN SELECTIVE HYDROGENATION OF OLEFINS AND ACETYLENES
Authors: Kaneda Kiyotomi , Terasawa Masami , Imanaka Toshinobu , Teranishi Shiichiro 
Published: July 2006

Abstract
The palladium chloride complex supported on polymeric diphenylbenzyl phosphine is very active for both hydrogenation of olefins and acetylenes, and isomerization of double bonds. This high activity is probably due to the formation of the coordinatively unsaturated palladium.
A NOBLE SYNTHESIS OF 1-ALKYL-2-NAPHTHOLS
Authors: Kito Taketoshi , Ota Koki 
Published: July 2006

Abstract
It was found that the treatment of alkali 2-naphthoxide with alcohols easily afforded 1-alkyl-2-naphthols in good yields. The structures were determined by means of MS, NMR, and IR.
ASYMMETRIC HYDROFORMYLATION BY RHODIUM COMPLEX CATALYST IN THE PRESENCE OF (−)-2,3-O-ISOPROPYLIDENE-2,3-DIHYDROXY-1,4-BIS(5H-DIBENZOPHOSPHOLYL)BUTANE
Authors: Tanaka Masato , Ikeda Yoshikazu , Ogata Ikuei 
Published: July 2006

Abstract
The highest stereoselectivity ever observed (16.9∼44.3% optical yield) was realized in the hydroformylation of styrene and butenes using a rhodium complex catalyst in the presence of (−)-2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis (5H-dibenzophospholyl)butane.
ISOTHERMAL REDUCTION OF V2O5 BY SO2 GAS
Authors: Kawashima Kenji , Kosuge Koji , Kachi Sukeji 
Published: July 2006

Abstract
When V2O5 is reduced isothermally by SO2 gas (200 cc/min), the weight loss shows the stepwise curve. Each step corresponds to the intermediate phase expressed by general formula VNO2N+1 (N=3,4,5, … and ∞). The quenched specimens at each step analyzed by an X-ray diffraction, however, have revealed to be coexistence of two phases, except for the case of N=4,6 and ∞ (V2O4).
EREMOPHILANES PART I. TOTAL SYNTHESES OF (±)-EREMOPHILENOLIDE AND (±)-FURANOEREMOPHILANE
Authors: Nagakura Isao , Maeda Shuichi , Ueno Masako , Funamizu Makoto , Kitahara Yoshio 
Published: July 2006

Abstract
Stereoselective total syntheses of (±)-eremophilenolide (14) and (±)-furanoeremophilane (15) starting from an octalone (1) are described.
SELECTIVE NUCLEAR LITHIATION OF AROMATIC COMPOUNDS: FACILE SYNTHESIS OF METHOXYPHTHALIDE DERIVATIVES BY CARBOXYLATION OF THE LITHIO-COMPOUNDS
Authors: Uemura Motokazu , Tokuyama Satoru , Sakan Takeo 
Published: July 2006

Abstract
The aromatic compounds, which have both hydroxymethyl and methoxyl groups at 1,3-position, were lithiated mostly at 2-position with n-butyllithium. This reaction would provide a useful synthetic method of methoxyphthalide derivatives, in conjunction with carboxylation of the resulting lithio-compounds.
REDUCTION BY A MODEL OF NAD(P)H. PHOTO-ACTIVATION OF NADH AND ITS MODEL COMPOUNDS TOWARD THE REDUCTION OF OLEFINS
Authors: Ohnishi Yutaka , Kagami Masayuki , Ohno Atsuyoshi 
Published: July 2006

Abstract
NADH, 1-benzyl-1,4-dihydronicotinamide, and Hantzsch ester reduce dimethyl maleate and fumarate to dimethyl succinate under photo-activation at room temperature. Fumaric acid is also reduced under the same condition. Pyridine is the best solvent for the reaction.
NICKEL–PHOSPHINE COMPLEX CATALYZED GRIGNARD SYNTHESIS OF STERICALLY HINDERED, UNSYMMETRICAL BIARYLS: AN APPROACH TO THE ASYMMETRIC SYNTHESIS OF BIARYL ATROPISOMERS
Authors: Tamao Kohei , Minato Akio , Miyake Norio , Matsuda Tatsuhito , Kiso Yoshihisa , Kumada Makoto 
Published: July 2006

Abstract
Sterically hindered, unsymmetrical biaryls can be prepared by the cross-coupling reaction of ortho-substituted aryl Grignard reagents with aryl halides in the presence of nickel–phosphine complexes as catalysts. Asymmetric synthesis of biaryl atropisomers has been accomplished with a chiral phosphine-nickel catalyst.
SOLUTION CIRCULAR DICHROISM SPECTRA OF THE COMPLEX ION, (−)546-Δ(lel3)-[Co(R,R-ptn)3]3+
Authors: Kuroda Reiko , Fujita Junnoske , Saito Yoshihiko 
Published: July 2006

Abstract
The solution CD spectra of (−)546-Δ(lel3)-[Co(R,R-ptn)3]3+ ion were found to be seriously affected by its counter ions. The CD change may be due to ion association between the complex and the counter ions.
FACILE SYNTHESIS OF ARYL CYANIDES FROM IODIDES CATALYZED BY PALLADIUM TRIPHENYLPHOSPHINE COMPLEX
Authors: Sekiya Akira , Ishikawa Nobuo 
Published: July 2006

Abstract
Cyanogenation of iodobenzene with potassium cyanide has been found to proceed smoothly in tetrahydrofuran in the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium(O). The reaction involves an intermediate, iodo(phenyl)bis(triphenylphosphine)palladium(II), which acts as a retracing species in the catalytic reaction path.
BREAKDOWN CURVES OF ETHYL AND METHYL RADICALS AND THEIR MASS SPECTRA
Authors: Ikuta Shigeru , Yoshihara Kenji , Shiokawa Takanobu 
Published: July 2006

Abstract
The breakdown curves of ethyl and methyl radicals were estimated based on those of corresponding alkyliodides. Mass spectra of the radicals calculated from these breakdown curves using an estimated internal energy distribution are in good accordance with those obtained by electron impact.
A CONVENIENT METHOD FOR THE PREPARATION OF δ-ALKOXY-α,β-UNSATURATED ALDEHYDES BY REACTION OF ACETALS WITH 1-TRIMETHYLSILOXY-1,3-BUTADIENE
Authors: Mukaiyama Teruaki , Ishida Akihiko 
Published: July 2006

Abstract
ZIt was found that, in the presence of TiCl4,1-trimethylsiloxy-1,3-butadiene (II) reacts with acetals(I) to give δ-alkoxy-δ,β-unsaturated aldehydes in good yields. This reaction provides a novel method for the introduction of–CH2–CH=CH-CHO unit to an electrophile as acetal activated by TiCl4.
SILICON-29 HYPERFINE SPLITTING OF THE SiH3 RADICAL
Authors: Katsu Takashi , Yatsurugi Yoshifumi , Sato Mitsuo , Fujita Yuzaburo 
Published: July 2006

Abstract
The well defined ESR spectra of the naturally abundant 29SiH3 and 29SiD3 radicals produced by γ-irradiation of silanes adsorbed on the surface of silica gel are reported. The observed 29Si-hf splitting of 182 G is compared with those obtained previously in the inert-gas matrices.
RAMAN SPECTRA OF THE MOLTEN MnCl2–KCl SYSTEM
Authors: Tanemoto Kei , Nakamura Tetsuro 
Published: July 2006

Abstract
The distribution of symmetric Mn–Cl stretching frequencies in molten MnCl2–KCl system was studied by laser-Raman spectroscopy. The stretching frequency was 208 cm−1 in pure MnCl2 and 245 ∼ 251 cm−1 in KCl-rich compositions. The full width at half-height of Raman band increased with increasing MnCl2 concentration from 38 cm−1 (MnCl2 : KCl = 1 : 4) to 110 cm−1 (pure MnCl2).
THREE NEW OBTUSILACTONES FROM LINDERA OBTUSILOBA BLUME
Authors: Niwa Masatake , Iguchi Masanobu , Yamamura Shosuke 
Published: July 2006

Abstract
In addition to obtusilactone (I), three new lactones (II, III and IV) have been isolated from the plant Lindera obtusiloba Blume, and their structures also been established in connection with I.