bluuebunny/crossref_metadata_2025_split huggingface dataset:
8-QUINOLYL NUCLEOSIDE 5′-PHOSPHATES AS A USEFUL INTERMEDIATE FOR THE SYNTHESIS OF NUCLEOSIDE 5′-DI- AND 5′-TRI-PHOSPHATES
Authors: Takaku Hiroshi , Konishi Toshimi , Hata Tsujiaki 
Published: July 2006

Abstract
Nucleoside 5′-di- and 5′-tri-phosphates were obtained in high yields by the reaction of 8-quinolyl nucleoside 5′-phosphates with phosphoric or pyrophosphoric acids in the presence of cupric chloride.
NOVEL DECARBOXYLATIVE REACTION OF THE SUBSTITUTED CINNAMYL CINNAMATES (STYRACINS) MEDIATED BY TRANSITION METALS
Authors: Tokoroyama Takashi , Nakamura Masaki 
Published: July 2006

Abstract
When the substituted cinnamyl cinnamates (I, styracins), which have hydroxyl groups in the phenyl rings, were treated with platinum and palladium catalysts, 1,5-diaryl-1,4-pentadienes (II) were obtained in variable yields up to 34% with other products.
THE SYNTHESIS OF (±)-GLUTINOSONE
Authors: Murai Akio , Taketsuru Hirofumi , Fujisawa Koji , Nakahara Yu-uji , Takasugi Mitsuo , Masamune Tadashi 
Published: July 2006

Abstract
The synthesis of (±)-glutinosone, an antifungal norsesquiterpene from Nicotiana glutinosa infected with tobacco mosaic virus, is described.
57Fe- AND 119Sn-MÖSSBAUER SPECTROSCOPIC STUDIES OF THE MOLECULAR DYNAMICS OF (π-C5H5)Fe(CO)2Sn(C6H5)3 AND (π-C5H5)Fe(CO)2SnCl3
Authors: Sano Hirotoshi , Yamamoto Hajime 
Published: July 2006

Abstract
The Mössbauer effect of the 14.4 keV 57Fe and 23.8 keV 119Sn transitions has been studied in (π-C5H5)Fe(CO)2Sn(C6H5)3 and (π-C5H5)Fe(CO)2SnCl3 crystals. From the temperature dependence of the recoil-free fraction in iron and tin experiments, practically the same characteristic temperature (58 K for each Mössbauer resonance) has been found in the (π-C5H5)Fe(CO)2SnCl3, while two slightly different values (42 K for the iron resonance and 47 K for the tin resonance) have been estimated in the (π-C5H5)Fe(CO)2Sn(C6H5)3.
TRIALKYLZINCLITHIUM [R3ZnLi] A NEW REAGENT FOR CONJUGATE ADDITION TO α,β-UNSATURATED KETONES
Authors: Isobe Minoru , Kondo Shigehiro , Nagasawa Norimichi , Goto Toshio 
Published: July 2006

Abstract
Trialkylzinclithium is readily prepared in THF by mixing zinc chloride (or its TMEDA complex) and alkyllithium in a 1 : 3 mole ratio. Conjugate addition of this new reagent is demonstrated with 2-cyclohexen-1-one (I) and dicyclopentadien-1-one (IV) as a,α,β-unsaturated ketones.
ONE-STEP SYNTHESIS AND STRUCTURAL CONFIRMATION OF 1-PYRROLINE TRIMER
Authors: Nomura Yujiro , Ogawa Keiichiro , Takeuchi Yoshito , Tomoda Shuji 
Published: July 2006

Abstract
Oxidation of pyrrolidine with aqueous alkaline solution of sodium peroxodisulfate in the presence of silver nitrate gave 1-pyrroline trimer in moderate yield with remarkable selectivity and its structure was established.
THE FORMATION OF A STABLE COPPER(II) COMPLEX WITH l-ASCORBIC ACID
Authors: Yamamoto Yasuo , Ishizu Keiko , Shimizu Yoko 
Published: July 2006

Abstract
The formation of stable l-ascorbato(2,2′-bipyridine)copper(II) complex in solution was confirmed and studied chiefly by means of its absorption and CD spectra.
NEW SYNTHESIS OF γ-DAMASCONE
Authors: Takazawa Osamu , Saigo Kazuhiko , Narasaka Koichi , Mukaiyama Teruaki 
Published: July 2006

Abstract
γ-Damascone was selectively synthesized in good yield from γ-damascol by the oxidation of its alkoxymagnesium bromide with 1,1′-azodicarbonyldipiperidine. γ-Damascol was prepared by the reaction of γ-cyclocitral with 1-propynyllithium and the successive reduction with lithium aluminum hydride.
SUBSTITUENT EFFECTS ON C-13 CHEMICAL SHIFT OF THE SIDE-CHAIN Cβ-ATOMS IN SUBSTITUTED PHENYLALKANES, PHENYLCYCLOPROPANES, AND α-METHYLSTYRENES. EFFECT OF HYBRIDIZATION AND CONTRIBUTION OF 1,3-THROUGH-SPACE INTERACTION
Authors: Inamoto Naoki , Masuda Shozo , Nakanishi Waro , Ideda Yoshitsugu 
Published: July 2006

Abstract
The normal and inverse substituent effects on the C-13 chemical shifts of Cβ-atoms in the titled compounds are explained by the π bond character of the Cα–Cβ bond. The transmission mode in m- and p-series has been discussed in terms of 1,3-through-space interaction. Therefore, both series should be treated separately.
MILD AND SELECTIVE REDUCTION OF SULFOXIDES IN THE MIXTURE WITH OTHER SULFINYL COMPOUNDS WITH TRIFLUOROACETIC ANHYDRIDE—HYDROGEN SULFIDE SYSTEM
Authors: Drabowicz Jozef , Oae Shigeru 
Published: July 2006

Abstract
A rapid and convenient method for selective reduction of sulfoxides to the corresponding sulfides in the mixture with other sulfinyl compounds, i.e., sulfinic esters and t-butyl thiolsuifinates, with (CF3CO)2O–H2S system is described.
5,8-DITHIAFULVALENE-1,4-QUINONE [2-(1,3-DITHIOL-2-YLIDENE)-4-CYCLOPENTENE-1,3-DIONE]
Authors: Nakayama Jyuzo , Ishihara Miyoko , Hoshino Masamatsu 
Published: July 2006

Abstract
5,8-Dithiafulvalene-1,4-quinone [2-(1,3-dithiol-2-ylidene)-4-cyclopentene-1,3-dione] and its benzo-derivatives were synthesized and their spectroscopic properties were described.
NEW CHIRAL PHOSPHINE-RHODIUM CATALYSTS FOR ASYMMETRIC SYNTHESIS OF (R)- AND (S)-N-BENZYLOXYCARBONYLALANINE
Authors: Achiwa Kazuo 
Published: July 2006

Abstract
The synthesis of new chiral bisphosphine ligands (APPM (4) and PPPM (5)) and their application to the catalytic asymmetric synthesis of (R)- and (S)-N-benzyloxycarbonylalanine were described.
THE THERMAL REACTION OF VINYLOXIRANE
Authors: Hasegawa Hajime , Saito Hitoshi , Tsuchitani Kazuo 
Published: July 2006

Abstract
Methyl 4,5-epoxy-3-methoxycarbonyl-4-methyl-trans-2-pentenoate gave dimethyl 4-methyl-2,5-dihydrofuran-2,3-dicarboxylate on being heated with acetylenic compounds, while methyl 4,5-epoxy-3-methoxycarbonyl-4-methyl-cis-2-pentenoate gave methyl 3-methoxycarbonyl-4-oxo-2-pentenoate as a main product.
HYDROTHERMAL PREPARATION OF OSMIUM(III) COMPLEXES WITH ETHYLENEDIAMINETETRAACETIC ACID
Authors: Saito Masami , Uehiro Takashi , Yoshino Yukichi 
Published: July 2006

Abstract
Osmium(III) complexes with ethylenediaminetetraacetic acid have been prepared by the reaction of hexachloroosmate(IV) and ethylenediaminetetraacetic acid suspended in water in a Teflon bucket at 14O°C. The complexes have been formulated as H[OsCl2H2edta]·2.5H2O and NH4[OsCl2H2edta] from elementary analyses, pH titration, ir and magnetic measurements.
PHOTOCHEMICAL REDUCTION OF gem-DIBROMOCYCLOPROPANES
Authors: Shimizu Nobujiro , Nishida Sinya 
Published: July 2006

Abstract
Photo-irradiation of nine gem-dibromocyclopropanes in ether solution leads to the corresponding monobromocyclopropanes in moderate to good yields. The stereochemical observation indicates that the partial reduction proceeds via an α-bromocyclopropyl radical.
PHOTOCHEMICAL SYNTHESIS OF 2-CHLORO-3-(2-THIENYL)-1,4-NAPHTHOQUINONES AS A PROMISING PRECURSOR OF NATURALLY OCCURRING QUINONES
Authors: Maruyama Kazuhiro , Otsuki Tetsuo 
Published: July 2006

Abstract
The photochemical reaction of 2,3-dichloro-1,4-naphthoquinone 1 with thiophene derivatives 2 gave 2-chloro-3-(2-thienyl)-1,4-naphthoquinone 3. The products 3 were transformed further to alkyl substituted 1,4-naphthoquinone derivatives.
PHOTOCHEMICAL SYNTHESIS OF NEW SULFUR-CONTAINING POLYCYCLIC AROMATIC COMPOUNDS—ANTHRA[2,1-b]THIOPHENE DERIVATIVES
Authors: Maruyama Kazuhiro , Mitsui Kiichiro , Otsuki Tetsuo 
Published: July 2006

Abstract
6,11-Anthra[2,1-b]thiophenedione 3 was yielded(62%) in the photochemical reaction of 2-bromo-3-methoxy-1,4-naphthoquinone 1 with 1-phenyl-1-(2-thienyl)ethylene 2. The reduction of 3 gave anthra[2,1-b]thiophenes.
A NEW METHOD FOR THE SOLID PHASE SYNTHESIS OF TRYPTOPHAN CONTAINING PEPTIDES
Authors: Ueki Masaaki , Ikeda Shigeru 
Published: July 2006

Abstract
Solid phase synthesis of tryptophan containing peptides with use of diphenylphosphinothioyl(Ppt)-amino acids is described. Ppt group could be removed from tryptophyl peptides without coloration by 2n HCl in methylene chloride containing 1m triphenylphosphine.
NEW MIXED OLEFIN COMPLEXES OF PALLADIUM(0). A STABILIZATION OF THE Pd(0) STATE WITH A COMBINATION OF ELECTRON-DONATING AND ELECTRON-WITHDRAWING OLEFINS
Authors: Itoh Kenji , Ueda Fujio , Hirai Kenji , Ishii Yoshio 
Published: July 2006

Abstract
Mixed olefin complexes of Pd(0) are prepared by a ligand substitution of (dibenzylideneacetone)3Pd2(CHCl3) (1) or (tribenzylideneacetylacetone)3Pd3(CHCl3) (2) with a judicious combination of both electron-donating and electron-withdrawing olefin ligands.
SYNTHESIS OF PLEIADIENE-7,8-DIONE, o-PLEIADIENOQUINONE
Authors: Tsunetsugu Josuke , Sato Masaru , Kanda Mariko , Takahashi Makoto , Ebine Seiji 
Published: July 2006

Abstract
Pleiadiene-7,8-dione, o-pleiadienoquinone (I), was synthesized by hydrolysis of acenaphthylene-dichloroketene adduct (III). E1⁄2 value is −0.23 V at pH 5.28. Spectral data suggest that I has the contribution from such canonical forms as 2,3- (Ia) and/or 4,5-benzotropolonate (Ib) structures.
THE CRYSTAL STRUCTURE OF THE BROWN FORM OF BIS (N-CYCLOHEXYLSALICYLALDIMINATO) COPPER(II)
Authors: Tamura Hatsue , Ogawa Kazuhide , Takeuchi Akira , Yamada Shoichiro 
Published: July 2006

Abstract
The crystal structure of brown form of bis(N-cyclohexylsalicylaldiminato)copper(II) has been determined by the X-ray diffraction method. The coordination of the copper(II) ion is square planar, with Cu–N=2.034Å and Cu–O=1.896Å. The molecule is bent, or stepped, so that the perpendicular distance between the salicylaldimine planes is 1.28Å.
SYNTHESIS OF 2- AND 4-BROMOQUINOLINES WITH A NEW BROMINATING REAGENT, PBr3-DMF
Authors: Yajima Toshikazu , Munakata Katsura 
Published: July 2006

Abstract
A congener of 2- and 4-bromoquinolines was synthesized in good yields from the corresponding methoxyquinolines using a new brominating reagent, PBr3-DMF, under the quite mild conditions. The new reagent seems to be useful in organic synthesis, especially in bromination of the complex molecules.
NEW SIMPLE SYNTHESES OF UNSYMMETRICAL DISULFIDES AND THIOLSULFONATES
Authors: Oae Shigeru , Kim Yong H , Fukushima Daikichi , Takata Toshikazu 
Published: July 2006

Abstract
New one-pot syntheses of both unsymmetrical disulfides and thiolsulfonates by treatment of thionitrites with thiols and sulfinic acids are reported.
RESONANCE RAMAN EFFECTS OF NUCLEOTIDES
Authors: Nishimura Yoshifumi , Hirakawa Akiko Y , Tsuboi Masamichi 
Published: July 2006

Abstract
Raman spectra of β-uridine-5′-phosphoric acid, β-cytidine-5′-phosphoric acid, and β-guanosine-5′-phosphoric acid have been observed in their dilute (10−4 M) neutral aqueous solutions by the use of the 257.3 nm beam of a frequency doubled argon ion laser.
PARTIAL ASYMMETRIC PUMMERER REACTION OF ARYL PROP-2-YNYL SULFOXIDE WITH ACETIC ANHYDRIDE
Authors: Numata Tatsuo , Itoh Osamu , Oae Shigeru 
Published: July 2006

Abstract
The Pummerer reaction of aryl prop-2-ynyl sulfoxides with acetic anhydride was found to be stereospecific. From the 18O-tracer studies, the asymmetric induction at α-carbon is considered to be caused by an intramolecular and somewhat synchronized 1,2-acetoxy migration within the ylide intermediate.
THE CRYSTAL STRUCTURE OF TETRABUTYLAMMONIUM GUANIDINIUM BROMIDE MONOHYDRATE COMPLEX, [N(C4H9)4]+[C(NH2)3]+Br−2·H2O
Authors: Taga Tooru , Ohashi Makoto , Miyajima Koichiro , Yoshida Hiromitsu , Osaki Kenji 
Published: July 2006

Abstract
In the crystal structure of the title compound, the two dimensional hydrogen-bond networks are formed between the guanidinium ions, bromide ions and water molecules. The tetrabutylammonium groups are located at the interstitial space between these hydrogen-bond networks, and the neighboring groups have a large number of hydrophobic contacts.
RESONANCE RAMAN SPECTRA OF CARBONIUM IONS ADSORBED ON POROUS VYCOR GLASS
Authors: Yamamoto Yoichiro , Yamada Haruka 
Published: July 2006

Abstract
When 1,1-diphenylethylene(DPE) was adsorbed on porous Vycor glass, some unstable intermediates, blue, green and yellow species, were produced. The resonance Raman spectra of the green and yellow species were observed. The green species showed three new bands at 2975, 2930 and 2873 cm−1 and the yellow species one at 2930 cm.−1 The observed Raman spectra have confirmed the existence of two kinds of carbonium ions.
THE REACTION OF α-DIAZOKETONES WITH THIOBENZOPHENONE
Authors: Mataka Shuntaro , Ishi-i Seimi , Tashiro Masashi 
Published: July 2006

Abstract
The reaction of azibenzil (1) and α-diazophenanthrone (2) with thiobenzophenone (4) gave the corresponding 1,3-oxathioles 5 and 8 in 31 and 73% yields, respectively, whereas α-diazoacenaphthenone 3 gave diphenylmethylideneacenaphthenone 9 in 97% yield.
A SIMPLE SYNTHESIS OF 1-OCTEN-3-OL(MATSUTAKE ALCOHOL) BY THE TITANIUM-CATALYZED HIGHLY SELECTIVE REDUCTION OF THE BUTADIENE TELOMER WITH LiAlH4
Authors: Tsuji Jiro , Mandai Tadakatsu 
Published: July 2006

Abstract
Treatment of 1,7-octadien-3-ol with di-iso-butylaluminum hydride, followed by highly selective reduction of C7-olefin with LiAlH4 catalyzed by dicyclopentadienyltitanium dichloride produced 1-octen-3-ol.
THE STRUCTURE OF INFLEXIN
Authors: Kubo Isao , Nakanishi Koji , Kamikawa Tadao , Isobe Takahiko , Kubota Takashi 
Published: July 2006

Abstract
The structure of inflexin isolated from the leaves of Isodon inflexus has been determined as 1 by spectroscopic and chemical methods. Inflexin exhibits cytotoxicity, insect antifeedant and other bioactive properties.
FACILE ELECTROCHEMICAL ALKYLATION OF 1-ALKYNES WITH ORGANOBORANES
Authors: Takahashi Yuzuru , Tokuda Masao , Itoh Mitsuomi , Suzuki Akira 
Published: July 2006

Abstract
Trialkylboranes are readily electrolyzed in an undivided cell by using two platinum plates as the electrodes in the presence of 1-alkynes in a tetrahydrofuran solution containing tetraalkylammonium halide to give corresponding alkynes in good yields. In the case of phenylacetylene, all alkyl groups of trialkylboranes are used for alkylation of the alkyne.
STRUCTURE REVISION OF “1-KETO-α-CYPERONE,” A SESQUITERPENE ISOLATED FROM TOBACCO
Authors: Murai Akio , Ono Mitsunori , Masamune Tadashi 
Published: July 2006

Abstract
The structure of “1-keto-α-cyperone” isolated from tobacco was revised to 2-keto-α-cyperone on the basis of the unambiguous transformation of (+)-α-cyperone into the compound.
PHOTOCHEMICAL REACTION IN/ON MEMBRANE LIKE ASSEMBLIES: PHOTOSENSITIZED REDOX REACTION IN/ON LIPOSOME USING ANTHRAQUINONE DERIVATIVE
Authors: Sudo Yukio , Toda Fujio 
Published: July 2006

Abstract
Photoreduction of Fast Red A by ascorbate in/on liposome, using anthraquinone derivative with a long hydrocarbon chain, as a sensitizer was studied. In liposome system, the reaction was accelerated and proceeded through the Michaelis-complex.
RAPID AND EASY SEPARATION OF CHLOROPHYLLS, THEIR DERIVATIVES, AND PLANT YELLOW PIGMENTS BY THIN-LAYER CHROMATOGRAPHY
Authors: Shiraki Masaru , Yoshiura Masahiko , Iriyama Keiji 
Published: July 2006

Abstract
A thin-layer chromatographic method for the analysis of leaf pigments and their derivatives by commercial silica gel layers has been developed. The method is rapid and easy and is suitable for checking the purity of chlorophyll samples for various investigation.
SURFACE COMPOSITIONS AND ACTIVITIES OF CATALYSTS STUDIED WITH X-RAY PHOTOELECTRON SPECTROSCOPY: sec-BUTANOL CONVERSIONS ON SnO2–MoO3 BINARY OXIDE CATALYSTS
Authors: Okamoto Yasuaki , Hashimoto Takeshi , Imanaka Toshinobu , Teranishi Shiichiro 
Published: July 2006

Abstract
The surface compositions of SnO2–MoO3 catalysts were determined using XPS and compared with the activities for sec-butanol. Surface enrichment of MoO3 occurred in the composition range of Mo/Mo+Sn &lt; ca. 0.6, while SnO2 was enriched in the other catalysts. The activities were understood better in terms of the surface composition of the catalyst.
FURANOSESQUITERPENOIDS ABSOLUTE CONFIGURATION OF PALLESCENSIN-1, -2, AND -A
Authors: Matsumoto Takashi , Usui Shuji 
Published: July 2006

Abstract
The chirality of asymmetric centers of pallescensin-1 (1a), -2 (2a), and -A (4a) was respectively assigned to be (R), (R), and (5S,10S) by the syntheses of la and 4a starting from (R)-(−)-α-cyclocitral (5a).
SYNERGISTIC EFFECT OF Ni–La2O3–Ru CATALYST ON THE DIRECT METHANATION OF CARBON
Authors: Inui Tomoyuki , Ueno Kiyokazu , Funabiki Masaki , Takegami Yoshinobu 
Published: July 2006

Abstract
The three-component catalyst, in which small amounts of La2O3 and Ru are combined with Ni-substrate supported on an active carbon by several percent, exerted a marked synergistic effect on the catalytic methanation of the active carbon. The effect was considered from the viewpoint of a hydrogen-spillover mechanism.
CYCLOADDITION REACTION OF MESOIONIC 3a,6a-DIAZAPENTALENES WITH DIMETHYL ACETYLENEDICARBOXYLATE
Authors: Matsumoto Kiyoshi , Uchida Takane 
Published: July 2006

Abstract
Mesoionic 3a,6a-diazapentalenes (1) and (6) react with two equimolar amounts of dimethyl acetylenedicarboxylate to give the rearranged 1:2 adducts (5) and (9), respectively whose structures are assigned on the basis of spectral data as well as mechanistic considerations.
SYNTHESIS OF dl-15-OXO-13,14-METHYLENEPROSTANOIC ACID
Authors: Inoue Kenji , Amemiya Shigeo , Tajima Yavara , Sakai Kiyoshi 
Published: July 2006

Abstract
The Darzens reaction of 2-(6-methoxycarbonylhexyl)cyclopentanone with ethyl chloroacetate gave the stereoisomeric mixture of the epoxy esters which was connected with the synthesis of 15-oxo-13α, 14α-methyleneprostanoic acid and 15-oxo-13β,14β-methyleneprostanoic acid. Both methylene compounds showed very potent inhibitory activity against 15-hydroxyprostaglandin dehydrogenase.
ENANTIOFACE-DIFFERENTIATING EPOXIDATION OF (1-PHENYLALKYLIDENE)MALONONITRILES WITH MOLECULAR OXYGEN, CATALYZED BY OPTICALLY ACTIVE TERTIARY AMINES
Authors: Nanjo Katsumi , Suzuki Kunio , Sekiya Minoru 
Published: July 2006

Abstract
It has been found that (1-phenylalkylidene)malononitriles are asymmetrically oxidized with molecular oxygen to optically active oxiranes in the presence of chiral tertiary amines such as nicotine and d- or 1-α-(N,N-dimethyl)phenylethylamine.
TRANSITION METAL COMPLEXES WITH A NEW SEXADENTATE β-KETOAMINATO SCHIFF BASE LIGAND
Authors: Hiraki Katsuma , Onishi Masayoshi , Hamada Kazutoshi , Ogata Hitoshi 
Published: July 2006

Abstract
A new Schiff base, N,N′,N″-1,3,4-neopentanetriyltris(4-imino-2-pentanone) was prepared from acetylacetone and 1,1,1-tris(aminomethyl)ethane. This Schiff base served as a trivalent sexadentate N3O3 ligand, which formed mononuclear six-coordinated neutral complexes with Co(III) and Fe(III) ions.
ASYMMETRIC SYNTHESIS OF N-SUBSTITUTED DIMETHYL AZIRIDINE-2,3-DICARBOXYLATE AND THE FORMATION OF OPTICALLY ACTIVE ASPARTIC ACID
Authors: Harada Kaoru , Nakamura Isao 
Published: July 2006

Abstract
Optically active dimethyl aziridine-2,3-dicarboxylate(VI) was asymmetrically synthesized from dimethyl meso- and racemic dibromosuccinate(I and II), dimethyl bromofumarate(III) and dimethyl bromomaleate(IV) by treating with optically active α-methylbenzylamine. The optically active aziridine(VI) was hydrogenolyzed and hydrolyzed to form optically active aspartic acid(VII). The optical purity of VHI reached up to 37%.
PHOTOCHEMICAL REACTION OF PHENYLACETYLENES WITH ETHYLENE TRITHIOCARBONATE. PHOTOCHEMICAL PREPARATION OF 2-THIOXO-1,3-DITHIOLES
Authors: Ohashi Mamoru , Mino Norihisa , Nakayama Noboru , Yamada Shuzo 
Published: July 2006

Abstract
On irradiation diphenyl- and methylphenylacetylene react with ethylene trithiocarbonate to give 4,5-diphenyl- and 4-methyl-5-phenyl-2-thioxo-1,3-dithiole, respectively. Selective excitation of the acetylenes is essential to this reaction.
STRUCTURE OF OXYGLUTINOSONE AND EPIOXYLUBIMIN, STRESS METABOLITES FROM DISEASED POTATO TUBERS
Authors: Katsui Nobukatsu , Yagihashi Fujio , Murai Akio , Masamune Tadashi 
Published: July 2006

Abstract
The structure of oxyglutinosone and epioxylubimin, stress metabolites isolated from diseased potato tubers, was determined to be formulas 1 and 2 on the basis of the chemical and spectral evidence.
THE 14N NMR STUDY OF THE N–C CHELATED PALLADIUM COMPLEXES OF TERT-BUTYL ISOCYANIDE
Authors: Yamamoto Yasuhiro , Uzawa Jun 
Published: July 2006

Abstract
The 14N nmr study of palladium complexes of oxime, N,N-dimethylbenzylamine, and Schiff’s base having tert-butyl isocyanide as a ligand was examined. The 14N linewidths of the complexes were narrow, and increased with decrease of electronegativity of halogen. A plot of linewidths against the chemical shifts showed a linear relationship.
COPPER(II) SALT-ENHANCED VINYL CATION FORMATION IN THE PHOTOLYSIS OF VINYL BROMIDES
Authors: Kitamura Tsugio , Kobayashi Shinjiro , Taniguchi Hiroshi 
Published: July 2006

Abstract
Irradiation of both 1,1-diphenyl-2-bromopropene(1a) and -ethylene (1b) in methanol in the presence of copper(II) salt resulted in the great increase of the yield of ionic products when compared to that without the salt. This suggests that cupric salt reacts with the vinyl radical, which is escaped from the solvent cage, to give ionic species via vinylcopper intermediate (8).
FLUORESCENCE OF PROFLAVINE AND 9-AMINOACRIDINE BOUND TO DNA: EFFECT OF DNA BASE COMPOSITION
Authors: Kubota Yukio , Hirano Kouji , Motoda Yuko 
Published: July 2006

Abstract
The analysis of fluorescence quantum yields reveals that bound proflavine does not fluoresce unless it is intercalated between two adjacent AT pairs. The results of 9-aminoacridine suggest that two adjacent AT pairs next to GC pairs may be still quenching sites for the dye or the heterogeneity of the dye binding may occur.
MORACIN C AND D, NEW PHYTOALEXINS FROM DISEASED MULBERRY
Authors: Takasugi Mitsuo , Nagao Shigemitsu , Ueno Shoji , Masamune Tadashi , Shirata Akira , Takahashi Kokichi 
Published: July 2006

Abstract
Two antifungal compounds, moracin C and D, have been isolated from fungus-infected cortex and phloem tissues of mulberry shoots and their structures have been determined to be formulas 3 and 5 on the basis of the spectral and chemical evidence, respectively.
STILBENE PHYTOALEXINS FROM DISEASED MULBERRY
Authors: Takasugi Mitsuo , Muñoz Liliana , Masamune Tadashi , Shirata Akira , Takahashi Kokichi 
Published: July 2006

Abstract
Two stilbene phytoalexins were isolated from fungus-infected xylem tissue of mulberry shoots and characterized as trans-2,3′,4,5′-tetrahydroxystilbene (1, oxyresveratrol) and its 4′-(3-methyl-2-butenyl) derivative 2.
ASYMMETRIC SYNTHESIS OF α-HYDROXY ALDEHYDES
Authors: Mukaiyama Teruaki , Sakito Yoji , Asami Masatoshi 
Published: July 2006

Abstract
An asymmetric synthesis of α-hydroxy aldehydes was achieved in high optical yields starting from a keto aminal, prepared from phenylglyoxal and (S)-2-(anilinomethyl)pyrrolidine. By treating the keto aminal with the Grignard reagents and the hydrolysis of resulting hydroxy aminals, α-hydroxy aldehydes were obtained in 94–95% optical yields.
THE SESQUITERPENES OF CACALIA SPECIES: 8-OXOCACALOL AND THE STEREOCHEMISTRY OF CACALONE EPIMERS
Authors: Omura Kanji , Nakanishi Mikihiko , Takai Kunihiro , Naya Keizo 
Published: July 2006

Abstract
A new sesquiterpene has been isolated from Cacalia delphiniifolia Sieb. et Zucc. and its structure has been assigned to 8-oxocacalol (I) by physical and chemical methods. Cacalone (VIb) and the C-4 epimer (VIa) have been first obtained from the natural source (the above plant), and also by photosensitized oxygenation or autoxidation of cacalol (II). The stereochemistry of the epimers was established by comparisons of physical and chemical properties between the isomers and their acetates (VIIb and VIIa).
IMMOBILIZATION OF ENZYMES WITH USE OF PHOTOSENSITIVE POLYMERS BEARING STILBAZOLIUM GROUPS
Authors: Ichimura Kunihiro , Watanabe Shoji 
Published: July 2006

Abstract
Reaction of poly[(2-chloroethyl vinyl ether)-co-(N-vinylpyrrolidone)] with γ-stilbazole afforded water-soluble photosensitive polymer, in which enzymes were entrapped on irradiation. The activities of entrapped invertase, glucoamylase and catalase were 30, 60, and 35%, respectively.