bluuebunny/crossref_metadata_2025_split huggingface dataset:
ONE-DIMENSIONAL NATURE OF THE BAND-STRUCTURE PARAMETERS OF (BPDT-TTF)3(PF6)2 AND (BPDT-TTF)2I3
Authors: Mori Takehiko , Kobayashi Akiko , Sasaki Yukiyoshi , Kato Reizo , Kobayashi Hayao 
Published: July 2006

Abstract
Calculation of band-structure parameters of novel organic conductors, (BPDT-TTF)3(PF6)2 and (BPDT-TTF)2I3 (BPDT-TTF: bis(propylenedithio)tetrathiafulvalene), elucidates their one-dimensional nature. The tendency of BPDT-TTF to form highly aniso-tropic compounds is explained by means of the small spread of the highest occupied molecular orbital (HOMO) to the outer heterorings.
A CONVENIENT METHOD FOR THE PREPARATION OF MACROLIDES FROM TRIMETHYLSILYL ω-TRIMETHYLSILYLOXYCARBOXYLATES
Authors: Taniguchi Nagahiro , Kinoshita Hideki , Inomata Katsuhiko , Kotake Hiroshi 
Published: July 2006

Abstract
Several macrolides were readily prepared from trimethylsilyl ω-trimethylsilyloxycarboxylates by the use of dipropylboryl trifluoromethanesulfonate (triflate) as a catalyst in good yields.
STRUCTURAL STABILITY OF SCHEELITE CATALYSTS IN THE REDUCTION-OXIDATION CYCLE
Authors: Ueda Wataru , Chen Ching-Ling , Asakawa Kiyoshi , Moro-Oka Yoshihiko , Ikawa Tsuneo 
Published: July 2006

Abstract
Structural stability of scheelite catalysts, Bi1−x/3V1−xMoxO4, in the reduction and reoxidation cycle increases with an increase of the mobility of the lattice oxide ions in the catalysts.
1,4-CHIRALITY TRANSFER VIA THE ESTER ENOLATE CLAISEN REARRANGEMENT
Authors: Nagatsuma Masako , Shirai Fumiyuki , Sayo Noboru , Nakai Takeshi 
Published: July 2006

Abstract
The Claisen rearrangement of (S)-1-buten-3-yl propanoate via the (E)- and (Z)-silylketene acetal has been shown to proceed with 96–100% of 1,4-chirality transfer to afford (E,R)- and (E,S)-2-methyl-4-hexenoic acid, respectively. The variation in sense and degree with solvent and silylating agent is discussed on mechanistic grounds.
SYNTHESIS OF ENAMINONES BY Pd(II) INDUCED DEHYDROGENATION OF β-AMINO KETONES
Authors: Murahashi Shun-Ichi , Tsumiyama Tatsuo , Mitsue Yo 
Published: July 2006

Abstract
The reaction of β-amino ketones with bis(acetonitrile)dichloropalladium(II) in the presence of triethylamine gives enaminones regioselectively.
STABLE ROTAMERS ABOUT A SULFUR-TO-CARBON SINGLE BOND IN 1,4-DIMETHOXY-9-BENZYLSULFONYLTRIPTYCENE: THEIR ISOLATION AND CHARACTERIZATION
Authors: Nakamura Nobuo , Oki Michinori 
Published: July 2006

Abstract
Oxidation of 1,4-dimethoxy-9-benzylthiotriptycene with mCPBA or hydrogen peroxide to the corresponding sulfone and subsequent chromatography on silica gel yielded two stable rotamers about the S–C(9) single bond. Kinetic parameters for their interconversion as well as their spectroscopic data have been also presented.
SYNTHESIS AND SWELLING OF Sr-FLUORINE MICAS
Authors: Kitajima Kunio , Shinomiya Yu , Takusagawa Nobuo 
Published: July 2006

Abstract
A series of Sr-micas corresponding to the general formula SrMg2Lix(Alxsi4−xO10)F2 (x=1.0–0.5 ) were synthesized and swelling with water was observed for the micas (x≤0.7). The difference in swelling tendencies of Sr-micas can be ascribed to the distribution of positive charge deficiency and the degree of distortion in tetrahedral sheets.
EFFECTS OF ADDITIVES ON THE SELECTIVITY IN FISCHER–TROPSCH SYNTHESIS BY ALUMINA-SUPPORTED RUTHENIUM CATALYSTS
Authors: Okuhara Toshio , Enomoto Toshiyuki , Tamura Hiroshi , Misono Makoto 
Published: July 2006

Abstract
Addition of K and P to Ru/Al2O3 changed the selectivity of Fischer–Tropsch synthesis by affecting mainly the electronic state of Ru; the K increased olefin/paraffin ratio and decreased the methane formation, and the effect of P was opposite. In contrast, the addition of V suppressed the methane formation with only a slight decrease in the olefin/paraffin ratio. These changes were not due to the electronic effect.
RING-EXPANSION OF 7-CHLORO-2-OXABICYCLO[4.2.0]OCT-4-EN-3-ONES TO 2H-OXOCIN-2-ONES WITH BASE. FORMATION OF A NEW OXACYCLOOCTATRIENONE SYSTEM
Authors: Shimo Tetsuro , Somekawa Kenichi , Kuwakino Junro , Uemura Hisako , Kumamoto Sanetada , Tsuge Otohiko , Kanemasa Shuji 
Published: July 2006

Abstract
The treatment of chlorinated 2-oxabicyclo[4.2.0]oct-4-en-3-ones, which are photoadducts between 4,6-dimethyl-2-pyrone and chloroethylenes, with a base gives new 2H-oxocin-2-ones in good yields. This provides the first example for preparation of a monocyclic oxacyclooctatrienone system.
NEW DITERPENES FROM THE BROWN ALGA PACHYDICTYON CORIACEUM
Authors: Ishitsuka Midori , Kusumi Takenori , Tanaka Jiro , Chihara Mitsuo , Kakisawa Hiroshi 
Published: July 2006

Abstract
Three new diterpenes, which possess a cyclononane skeleton, have been isolated from the brown alga Pachydictyon coriaceum, and their structures have been determined spectroscopically.
A FACILE SYNTHESIS OF 7,9-DI-(p-METHOXYBENZYL)-7,9-DIAZA-5-METHYLENE-6-(t-BUTYLDIMETHYLSILYL)OXY-2-OXABICYCLO[4,2,2]DECANE-8,10-DIONE
Authors: Yamaura Masanori , Suzuki Tsuneji , Hashimoto Hironobu , Yoshimura Juji , Shin Chung-gi 
Published: July 2006

Abstract
The title compound, a key intermediate for a total synthesis of bicyclomycin, was obtained from N,N′-diacetyl-anhydroglycine through 12 steps in ca. 4% overall yield.
CRYSTAL STRUCTURES OF PERMETHYLATED β-CYCLODEXTRIN COMPLEXES WITH R-(−)- AND S-(+)-FLURBIPROFEN
Authors: Harata Kazuaki , Hirayama Fumitoshi , Imai Teruko , Uekama Kaneto , Otagiri Masaki 
Published: July 2006

Abstract
Crystal structures of permethylated β-cyclodextrin complexes with R-(−)- and S-(+)-flurbiprofen have been determined by the X-ray method. Host molecules in both complexes are markedly distorted from the regular heptagonal structure, and include the phenyl group of the guest. The carboxyl group of the R-isomer forms a hydroqen bond with a water molecule, while the S-isomer is hydrogen-bonded to an oxygen atom of the adjacent host molecule.
ROLE OF SULFUR d ORBITALS IN THE S···N BOND STABILITY OF AMMONIOALKYLSULFURANES
Authors: Morokuma Keiji , Hanamura Mitsuyasu , Akiba Kin-ya 
Published: July 2006

Abstract
Using H2NCH2OCH2SHX+ (X=H and Cl) as model compounds, we examined the role of sulfur d orbitals on the stability of S···N bonded cyclic ammonioalkylsulfuranes. The ab initio Hartree–Fock calculation with sulfur d orbitals gives a cyclic structure, while the calculation without d causes breaking of the S···N bond.
STRUCTURE OF ISOCHAMAEJASMIN FROM STELLERA CHAMAEJASME L.
Authors: Niwa Masatake , Chen Xiang-Fang , Liu Guo-Quan , Tatematsu Hiroshi , Hirata Yoshimasa 
Published: July 2006

Abstract
A new C-3/C-3″-biflavanone named isochamaejasmin has been isolated from Stellera chamaejasme L. (Thymelaeaceae) and its structure has been elucidated by spectroscopic and chemical methods. Furthermore, the stereochemistry of some C-3/C-3″-biflavanones including isochamaejasmin was discussed.
STRUCTURE OF RABDOHAKUSIN
Authors: Kubo Isao , Matsumoto Takeshi , Asaka Yukihiro , Kubota Takashi , Naoki Hideo , Fludzinski Pawel , Kende Andrew S 
Published: July 2006

Abstract
The structure of a new 8,9-seco-ent-kaurene compound, rabdohakusin, isolated from Rabdosia umbrosa var. hakusanensis (Kudo) Hara (Labiatae) has been determined by spectroscopic methods including 2D NMR.
SUPERACID CATALYZED OXYGENATION OF ALIPHATIC ETHERS WITH OZONE
Authors: Yoneda Norihiko , Kiuchi Takashi , Fukuhara Tsuyoshi , Suzuki Akira , Olah George A 
Published: July 2006

Abstract
Electrophilic insertion of protonated ozone into tertiary or secondary C–H bonds located at γ or farther away positions from the oxygen atom in aliphatic ethers was observed to produce oxoalkyl ethers in HF–SbF5 superacid media at −40 °C.
ISOLATION AND X-RAY STRUCTURAL DETERMINATION OF THREE NEW DITERPENOIDS FROM THE MARINE ALGA TAONIA ATOMARIA
Authors: Gonzalez Antonio G , Martin Julio D , Perez Cirilo , Rovirosa Juana , Tagle Bruce , Clardy Jon 
Published: July 2006

Abstract
Two new peroxylactones and one hemilactal triacetate based on the atomaric acid skeleton were isolated from the brown seaweed Taonia atomaria. These unusual structures have been elucidated on the basis of X-ray crystallography.
A STEREOSELECTIVE SYNTHESIS OF A FUNCTIONALIZED TRICYCLO[6.3.1.03,8]DODEC-4-ENE BY AN INTRAMOLECULAR DIELS–ALDER REACTION
Authors: Shishido Kozo , Hiroya Kou , Ueno Yutaka , Fukumoto Keiichiro , Kametani Tetsuji , Honda Toshio 
Published: July 2006

Abstract
An intramolecular Diels–Alder reaction of the cyclohexatrienone derivatives gives the title compounds, which have a useful structural feature for constructing basic carbon frameworks of some kinds of natural products, in a stereoselective manner.
WAVELENGTH-DEPENDENT PEROXIDE FORMATION UPON IRRADIATION OF all-trans RETINAL IN AN AERATED SOLUTION
Authors: Tsujimoto Kazuo , Hozoji Hiroshi , Ohashi Mamoru , Watanabe Masakatsu , Hattori Hiroyuki 
Published: July 2006

Abstract
Irradiation of an aerated solution of all-trans retinal in acetonitrile gave the 5,8-peroxyretinal in a quantum yield of 0.03 together with the retinal isomers. The formation of the peroxide was predominant on the irradiation with light at wavelength shorter than 400 nm.
PHOTOOXIDATION OF ADAMANTYLIDENEADAMANTANE IN THE PRESENCE OF TETRACYANOETHYLENE. A NEW PHOTOEPOXIDATION PROCESS
Authors: Akaba Ryoichi , Sakuragi Hirochika , Tokumaru Katsumi 
Published: July 2006

Abstract
Irradiation of a dichloromethane solution of adamantylideneadamantane in the presence of tetracyanoethylene with bubbling oxygen through a pyrex filter by a 650-W tungsten-halogen lamp gave a high yield (84%) of the corresponding epoxide. A reasonable mechanism for the efficient epoxidation will be described.
STUDIES ON THE CRYSTAL STRUCTURE AND THE PLASTIC CRYSTALLINE PHASE OF TETRACHLOROFERROCENE
Authors: Sato Kumiko , Konno Michiko , Sano Hirotoshi 
Published: July 2006

Abstract
The structure of the ordered room-temperature phase of tetrachloroferrocene was determined by single-crystal X-ray diffraction. The structure is monoclinic, space group P21 and final R=0.038 for 1129 independent reflections. The chloro groups have a 1,1′,2,2′ configuration with an average rotation of 2.5° of the rings from the eclipsed configuration. Mössbauer spectra exhibit a line broadening ascribed to fluctuation of the electric field gradient (EFG) caused by the orientational disorder between the x or y and z axes of molecule.
AN APPLICATION OF PHOTOELECTROCHEMICAL DEPOSITION OF HYDROPHOBIC ORGANIC LAYERS ON SEMICONDUCTOR ELECTRODES TO IMAGING SYSTEMS
Authors: Masuda Hideki , Shimidzu Naoki , Ohno Shin 
Published: July 2006

Abstract
Photoelectrochemical oxidation of aromatic compounds on semiconductor electrodes was applied to an imaging system. Change of hydrophilic and hydrophobic properties (wettability) of the surface of the semiconductor electrodes accompanied with organic layer deposition was studied by measuring the contact angle and its applicability to imaging systems was evaluated.
DRAMATICALLY ENHANCED ENANTIOSELECTIVE HYDROLYSIS OF AMINO ACID ESTERS WITH TRIPEPTIDE NUCLEOPHILE BY CONTROLLING THE REACTION FIELD AT ROOM TEMPERATURE
Authors: Ueoka Ryuichi , Matsumoto Yoko , Ihara Yasuji 
Published: July 2006

Abstract
The high enantioselective hydrolysis (ka,obsdL⁄ka,obsdD=27) of p-nitrophenyl N-dodecanoyl-d(l)-phenylalaninate with N-benzyloxycarbonyl-l-phenylalanyl-l-histidyl-l-leucine in the vesicular system (ditetradecyldimethylammonium bromide) was enhanced dramatically by the addition of micelles (hexadecyltrimethylammonium bromide) and attained to the enantiomer rate ratio (ka,obsdL⁄ka,obsdD)=71 at room temperature (25 °C).
N-(TRIMETHYLSILYLMETHYL)CARBODIIMIDES AND -KETENIMINE AS PRECURSORS OF IMINO- AND ALKYLIDENE-2-AZAALLYL ANIONS
Authors: Tsuge Otohiko , Kanemasa Shuji , Matsuda Koyo 
Published: July 2006

Abstract
The fluoride-induced desilylation of N-(trimethylsilylmethyl)carbodiimides and -ketenimine generates imino- and alkylidene-2-azaallyl anions which cycloadd to a variety of aldehydes giving regioisomeric 1,3-oxazolidines as cycloadducts.
THE CRYSTAL STRUCTURES OF (BEDT-TTF)ReO4(THF)0.5 AND (BEDT-TTF)IO4(THF)0.5
Authors: Kobayashi Hayao , Kobayashi Akiko , Sasaki Yukiyoshi , Saito Gunzi , Inokuchi Hiroo 
Published: July 2006

Abstract
The crystal structures of (BEDT-TTF)ReO4(THF)0.5 and (BEDT-TTF)IO4(THF)0.5 are reported (BEDT-TTF=bis(ethylenedithio)tetrathiafulvalene, THF=tetrahydrofuran). These salts of BEDT-TTF cations are isomorphic. There are chains of BEDT-TTF dimers. The bond lengths of BEDT-TTF+ differ systematically from those of the neutral BEDT-TTF molecule.
PUMMERER REARRANGEMENT PROMOTED BY POLYPHOSPHORIC ACID TRIMETHYLSILYL ESTER (PPSE)
Authors: Kakimoto Masa-aki , Imai Yoshio 
Published: July 2006

Abstract
It was found that PPSE catalyzed Pummerer rearrangement of various types of sulfoxides. When α-(phenylsulfinyl)acetophenone was used as sulfoxide, unusual product, phenyl phenylthioglyoxylate was isolated. The reaction seems to proceed via phosphorylation of oxygen of sulfoxides.
ONE STEP SYNTHESIS OF A BULKY COMPOUND AND ITS ABILITY TO FORM INCLUSION CRYSTALS WITH SMALLER ORGANIC MOLECULES
Authors: Takemura Tetsuo , Kozawa Kozo , Uchida Tokiko , Mori Nobuo 
Published: July 2006

Abstract
The reaction of terephthalaldehyde with 1,4-bis(mercaptomethyl) benzene leads to a novel macrocyclic thioacetal (1) which specifically and strongly forms inclusion crystals with organic solvents. The X-ray crystallographic examination of 1-benzene (2:3) complex revealed that the crystal is a crystalline solvate containing the benzene molecules as part of its lattice.
DICHLORO-BIS(TRIFLUOROMETHANESULFONATO)TITANIUM(IV) AS AN EFFECTIVE PROMOTER IN THE CLAISEN ESTER CONDENSATION
Authors: Tanabe Yoo , Mukaiyama Teruaki 
Published: July 2006

Abstract
Inter- and intra-molecular condensation (the Claisen and the Dieckmann condensations) between ester functions have been effected by the combined use of dichloro-bis(trifluoromethanesulfonato)titanium(IV) and tertiary amine under mild conditions.
ABNORMAL OZONOLYSIS OF 1-METHYL-3-STYRYL[3.3]PARACYCLOPHANE TO AFFORD 1-ALKOXY-3-METHYL[3.3]PARACYCLOPHANE
Authors: Nishimura Jun , Okada Yukihiro , Nakajima Hidehiro , Hashimoto Kazumasa , Oku Akira 
Published: July 2006

Abstract
Ozonolysis of 1-methyl-3-styryl[3.3]paracyclophane in various alcohols, followed by the treatment with perchloric acid, produced the corresponding cyclophanyl ethers in 28.6–83.5% yields.
AN INFRARED SPECTROSCOPIC STUDY ON THE MECHANISM OF METHANOL FORMATION FROM CO AND H2 OVER ZIRCONIA
Authors: Abe Hiroshi , Maruya Ken-ichi , Domen Kazunari , Onishi Takaharu 
Published: July 2006

Abstract
Formate and methoxide species formed by the CO–H2 reaction over zirconia at 423–673 K were observed by IR method. Methoxide species were converted into formate ion while the conversion of formate ion into methoxide was accelarated when methoxide and formate species coadsorbed on the zirconia surface at 523 K. A mechanism of methanol formation was proposed.
THE CRYSTAL STRUCTURE OF BIS(DIMETHYLTRIMETHYLENETETRASELENAFULVALENIUM) PERRHENATE, (DMtTSF)2ReO4
Authors: Kikuchi Koichi , Yakushi Kyuya , Kuroda Haruo , Kobayashi Keiji , Honda Masako , Katayama Chuji , Tanaka Jiro 
Published: July 2006

Abstract
The crystal structure of (DMtTSF)2ReO4 (2 C11H12Se41⁄2+·ReO4−) was determined at room temperature. The structure is monoclinic, space group C2/c, with cell dimensions a=28.518(2), b=7.327(1), c=14.364(1) Å β=109.84(1)°, Z=4. The DMtTSF molecules stack along the b axis to form a zigzag column. The interstack contacts between Se atoms are shorter than those in (TMTSF)2X. These contacts indicate that (DMtTSF)2ReO4 has a higher two-dimensional character than (TMTSF)2X.
PULSE RADIOLYSIS STUDIES OF ELECTRON TRANSFER BETWEEN POLYMER AND ZWITTERIONIC VIOLOGEN RADICALS
Authors: Sakamoto Tetsuo , Ohsako Tatsuya , Matsuo Taku , Mulac William A , Meisel Dan 
Published: July 2006

Abstract
The reaction between viologen polymer radicals(PV\underset.+) and Ru(NH3)63+ via zwitterionic viologen as excellent mediator, has been studied using the pulse radiolysis technique. Kinetic analysis provided quantitative measurement of the rate of electron transfer between the viologen radicals of zwitterionic viologens and PV2+ and vice versa. These also allowed determination of the redox potential of the polymer system. Implications to the photochemical charge separation system are discussed.
THE REACTION OF TRIMETHYLSTANNYLMETHYLLITHIUM WITH ELECTROPHILES
Authors: Murayama Eigoro , Kikuchi Toshihiro , Sasaki Kotaro , Sootome Norio , Sato Tadashi 
Published: July 2006

Abstract
Trimethylstannylmethyllithium was found to be a versatile reagent for the preparation of 1-alkenes from carbonyl compounds, allyl alcohols from α-chloro ketones, and cyclopropanes from oxiranes.
PHOTO-INDUCED HIGHLY SELECTIVE OLEFIN-MIGRATION OF N-(2- OR 3-PHENYLALLYL) AROMATIC IMIDES
Authors: Kubo Yasuo , Araki Takeo , Maruyama Kazuhiro 
Published: July 2006

Abstract
A Highly selective migration of double bond was observed on irradiation of N-(2- or 3-phenylallyl) aromatic imides in acetonitrile to afford N-(2- or 3-phenyl-1-propenyl) aromatic imides. The reaction seems to proceed via photochemical intramolecular one electron transfer from the double bond to the imide moiety.
COORDINATIVE ADDITION REACTIONS OF TERTIARY PHOSPHINES TO BISPHOSPHINE- AND BISPHOSPHITEPALLADIUM(O) COMPLEXES. FORMATION OF FOURCOORDINATE PALLADIUM(O) SPECIES WITH C3v-SYMMETRY
Authors: Urata Hisao , Tsukui Tatsuyuki , Suzuki Hiroharu , Moro-Oka Yoshihiko , Ikawa Tsuneo 
Published: July 2006

Abstract
Low-temperature 31P-NMR studies of the coordinative additions of tertiary phosphines, Ph2MeP and Et3P, to twocoordinate palladium(O) complexes, (Ph3P)2Pd(O) and [(PhO)3P]2pd(O), in toluene-d8 show the formation of fourcoordinate complexes with C3v-symmetry, (Ph2MeP)3(Ph3P)Pd and (Et3P)[(PhO)3P]3Pd, respectively.
NOVEL CONVERSION OF AROMATIC THIOAMIDES AND ALDEHYDES INTO NITRILES WITH ELEMENTAL SULFUR AND SODIUM NITRITE IN LIQUID AMMONIA
Authors: Sato Ryu , Itoh Kaoru , Itoh Kazumi , Nishina Hironori , Goto Takehiko , Saito Minoru 
Published: July 2006

Abstract
Various aromatic nitriles were obtained from aromatic thioamides, aldehydes, and the related compounds with elemental sulfur and sodium nitrite in liquid ammonia in good yields. A new type of the Willgerodt–Kindler reaction is suggested in this study.
COPPER(I)-INDUCED RADICAL CYCLIZATION OF DIETHYL o-(ALLYLOXY)PHENYLMALONATES TO CHROMAN DERIVATIVES
Authors: Setsune Jun-ichiro , Ueda Takashi , Matsukawa Kimihiro , Kitao Teijiro 
Published: July 2006

Abstract
The reaction of o-(allyloxy)bromobenzenes with copper(I) diethyl malonate afforded diethyl o-(allyloxy)phenylmalonates which under the reaction conditions cyclized to give 4,4-bis(ethoxycarbonyl)-3-methylchromans, 4,4-bis(ethoxycarbonyl)-3-methylenechromans, and 3-(3-butenyl)-4,4-bis(ethoxycarbonyl)chromans.
MICHAEL ADDITION-PETERSON OLEFINATION SEQUENCE OF METHYL 2-(TRIMETHYLSILYL)ACRYLATE AS A CONVENIENT METHOD FOR CONSECUTIVE FORMATION OF CARBON-CARBON SINGLE AND DOUBLE BONDS
Authors: Tsuge Otohiko , Kanemasa Shuji , Ninomiya Yusuke 
Published: July 2006

Abstract
A convenient method for the consecutive formation of carbon–carbon single and double bonds is presented with the example of the Peterson olefination of the carbanions resulted from the Michael addition of organometallics to methyl 2-(trimethylsilyl)acrylate.
CRYSTAL STRUCTURE OF TbIG IN VARIATION OF TEMPERATURE (298, 150 K) AND MAGNETIC FIELD (H=0, 0.1 T)
Authors: Konno Michiko , Mikami-Kido Mami 
Published: July 2006

Abstract
Temperature and magnetic field dependences of crystal structure of TbIG were investigated by X-ray diffraction. Corrections for primary and secondary extinction were made. It was found that temperature variation significantly affects the spherical domain, size r, whereas magnetic field affects the mosaic spread η.
UNUSUAL SUBSTITUTION REACTION OF 5-ALKYL-6,8-DIOXABICYCLO[3.2.1]OCTANES BEARING 3-SULFUR-CONTAINING SUBSTITUENTS WITH MERCAPTANS
Authors: Masaki Yukio , Serizawa Yuzuru , Nagata Kinnosuke , Kaji Kenji 
Published: July 2006

Abstract
5-Alkyl-6,8-dioxabicyclo[3.2.l]octanes with sulfur-containing substituents at the C(3)-position were found to undergo an unusual substitution reaction with mercaptans in the presence of the Lewis acids providing the corresponding 3-sulfenyl derivatives.
EFFECT OF POSITION OF ELECTRON-DONATING SIDEARM OF 16-CROWN-5 ON COMPLEXATION TOWARD Na+ AND K+
Authors: Nakatsuji Yohji , Yonetani Masayuki , Okahara Mitsuo 
Published: July 2006

Abstract
Several 16-crown-5 derivatives having an electron-donating sidearm were newly prepared and their stability constants toward Na+ and K+ were measured. The difference in the position of the sidearm was disclosed to change remarkably the complexation property of such type of compounds.
THE YLID ROUTE TO FLUORODIENES
Authors: Kondo Kazumi , Cottens Sylvain , Schlosser Manfred 
Published: July 2006

Abstract
The readily accessible 2-fluoro-2-alkenals react with phosphorus ylids at approximately the same rate and leading to nearly the same (Z/E)-mixtures of products as the corresponding halogen-free aldehydes do. Thus, the Wittig reaction allows to prepare a great variety of 2-fluorodienes with high yields.
PALLADIUM-CATALYZED SYNTHESIS OF 2,3-DISUBSTITUTED ALLYLAMINES BY REGIOSELECTIVE AMINOPHENYLATION OR AMINOALKENYLATION OF 1,2-DIENES
Authors: Shimizu Isao , Tsuji Jiro 
Published: July 2006

Abstract
Reaction of 1,2-dienes, phenyl iodide or alkenyl bromides, and secondary amines in the presence of palladium-phosphine catalyst affords 2-phenyl or alkenyl allylic amines.
t-BUTYL 2-PYRIDYL CARBONATE. A USEFUL REAGENT FOR t-BUTOXYCARBONYLATION OF AMINO ACIDS
Authors: Kim Sunggak , Lee Jae In 
Published: July 2006

Abstract
t-Butyl 2-pyridyl carbonate, a stable crystalline compound, is found to be very effective in the t-butoxycarbonylation of amino acids.
ASYMMETRIC REDUCTION OF PROCHIRAL CYCLIC KETONES WITH LITHIUM ALUMINUM HYDRIDE PARTIALLY DECOMPOSED BY (1R,2S)-(−)-N-METHYLEPHEDRINE AND 2-ALKYLAMINOPYRIDINE
Authors: Kawasaki Motoji , Suzuki Yasutaka , Terashima Shiro 
Published: July 2006

Abstract
The title chiral hydride was found to reduce prochiral cyclic ketones, affording the corresponding optically active cyclic alcohols in high optical(max. 9 8%ee) yields.
REDOX BEHAVIOR OF METHYLVIOLOGEN CATION RADICAL INCORPORATED INTO A HYDROPHOBIC ORGANIC PHASE BY LIPOPHILIC STABLE ANIONS
Authors: Takuma Keisuke , Sonoda Takaaki , Kobayashi Hiroshi 
Published: July 2006

Abstract
Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB−) could incorporate methylviologen radical cation (MV+·) and dication (MV2+) into hydrophobic organic solvent, while 2-hydroxy-3,5-ditert-butylbenzenesulfonate (HBBS−) could hold only the radical cation in the organic solvent. MV+· incorporated with TFPB− could easily transfer the electron to an acceptor at the interface between the organic and aqueous phases, and played the role of an efficient catalytic electron mediator across an organic liquid membrane.
CROSS TYPE OF DIENE-TRANSMISSIVE DIELS–ALDER REACTION
Authors: Tsuge Otohiko , Kanemasa Shuji , Sakoh Hirohiko , Wada Eiji 
Published: July 2006

Abstract
The first example of cross type of diene–transmissive Diels-Alder reaction is presented by the reactions of an activated cross-conjugated triene, 3-(methoxymethylene)-2,4-bis(trimethylsilyloxy)-1,4-pentadiene, with cyclic olefins as the first dienophiles and then with acetylenes as the second.