and
Yuhei Uzu
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Copyright (C) 1996 by The Chemical Society of Japan
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Articles
General and Physical
=============================
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and
Yuhei Uzu
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Takeshi Noro,
and
Kizashi Yamaguchi*
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and
Kenichi Yoshikawa
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-Conjugated Polymers in 0.5 M H2
SO4
(aq) and 1 M KOH (aq) Electrolytes
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=============================
Articles
Analitical and Inorganic
=============================
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Yuka Sato,
Takanori Kotera,
Ryoji Nukada,
Daisuke Yoshioka, and
Kuninobu Kasuga
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and
Yasuyoshi Sayama
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=============================
Articles
Orgainc and Biological
=============================
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and 7-Fluoro-17,20-dimethyl-2,4-methyleneprostacyclin
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and
Akira Sera
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,
Hisayoshi Yoshihara
, and
Katsuyuki Ogura*
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2,2'
-Bi-5,6-dihydropyrrolo[2,1-
a
]isoquinolin-3(2
H
)-one Dimers with a Twisted C=C Bond
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and
Scott S. Woodard
Opioid Receptors by Morphiceptin Analogs Containing
S
-(3-Nitro-2-pyridylthio)cysteine
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Tsugumi Fujita, and
Yasuyuki Shimohigashi*
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and
Kuo-Hsiung Lee
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3
-Cephems through Addition/Cyclization of Allenecarboxylates
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and
Sigeru Torii*
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Articles
Applied and Materials
=============================
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Akihiro Mizukami,
and
Kenji Omasa
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Copyright (C) 1996 The Chemical Society of Japan
=============================
Articles
General and Physical
=============================
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3387-3394 (1996) [Vol. 69, No. 12, December, 1996]
and
Yuhei Uzu
The effect of adding an extra polar group (i.e., a hydroxy group) for the 9,10-dihydroxyoctadecanoic acid (9,10-DHOA) monolayer, compared to the 9-hydroxyoctadecanoic acid (9-HOA) monolayer, was confirmed by calculating the energy generation during the phase transition from the liquid-expanded state (LE) to the liquid-condensed state (LC) in the
-A
isotherms on the 3 M NaCl substrate by using a two-dimensional Clausius-Clapeyron equation.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3395-3415 (1996) [Vol. 69, No. 12, December, 1996]
Takeshi Noro,
and
Kizashi Yamaguchi*
A systematic MO-theoretical description of tricentric bisdesmiphiles is presented in relation to contradictory arguments on the electronic structures of the species by Huisgen, Firestone, and others. The biradical (BR) and zwitterionic (ZW) characters are analyzed by DODS MO, UNO CI and CASSCF methods. The MO and VB descriptions for typical title compounds are also compared.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3417-3422 (1996) [Vol. 69, No. 12, December, 1996]
Cationic micelles of ethyl(hexadecyl)dimethylammonium bromide and hexadecyltrimetylammonium bromide catalyze and anionic micelles of sodium-1-dodecanesulfonate and lithium dodecyl sulfate inhibit the reaction of alkaline hydrolysis of parasubstituted PBHA. The overall micellar effects on rate was treated by a pseudophase model.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3423-3428 (1996) [Vol. 69, No. 12, December, 1996]
In order to improve the detection sensitivity of the reaction heat-induced optical beam deflection method, the experimental factors that affect the detection sensitivity were investigated in detail. Under the selected experimental conditions, the detection of the neutralization reaction at a sub-nanomal level becomes possible.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3429-3434 (1996) [Vol. 69, No. 12, December, 1996]
and
Kenichi Yoshikawa
Measurements of dynamic
-A
curves and an analysis using a Fourier-transformation for 1,2-dioleoyl-3-sn
-phosphatidylcholine were performed. Although a quasistatic
-A
isotherm of the thin films exhibits negligible effects by inorganic cations, it was found that the cations, especially Na+
, induce a marked change in the nonlinear viscoelasticity of the film.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3435-3441 (1996) [Vol. 69, No. 12, December, 1996]
Photocatalytic properties of H3 PW12 O40 for the 4-chlorophenol decomposition was investigated in aqueous media. The reaction proceeds via the photoreduction and reoxidation cycle of the catalyst. The reaction rates obey Langmuir type kinetics.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3443-3450 (1996) [Vol. 69, No. 12, December, 1996]
Through-bond and through-space magnetic interactions in tricarbene and its related triradicals coupled by m -phenylene are discussed with a semiempirical molecular orbital method. The high-spin states of these lie below the low-spin states, except for a heteroatomic system. Conformations of these radicals have little effect on their magnetic properties.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3451-3454 (1996) [Vol. 69, No. 12, December, 1996]
Anomalous magnetic quenching of ortho -positronium (o -Ps), as shown in the figure for 0.2 mol dm-3 nitrobenzene in isopentane, was found for various solutions of nitrobenzene and 1.3-dimethyl-2-nitrobenzene, where o -Ps forms a weakly bound complex with the solute.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3455-3460 (1996) [Vol. 69, No. 12, December, 1996]
The fluorescence lifetimes of a high-lying excited state of some cyanine dyes have been measured by a picosecond laser. The obtained lifetimes show a strong dependence on the solvent viscosity. Semiempirical MO calculations indicate that the origin of the short-wavelength fluorescence is the S2 state.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3461-3468 (1996) [Vol. 69, No. 12, December, 1996]
-Conjugated Polymers in 0.5 M H2
SO4
(aq) and 1 M KOH (aq) Electrolytes
Pt electrodes modified with 10 kinds of -conjugated polymers like poly(pyridine-2,5-diyl)PPy have been prepared. Hydrophilic polymer films serve as good H+
-transporting materials and give a dV
/d(log i
) value of about 3.2×10-2
V in H2
evolution. O2
-evolution is enhanced by using a PPy film.
=============================
Articles
Analitical and Inorganic
=============================
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3469-3473 (1996) [Vol. 69, No. 12, December, 1996]
An on-line separation-detection system, size exclusion chromatography coupled with UV detection and inductively coupled plasma mass spectrometry (ICP-MS), has been developed and applied to the study on speciation of trace metals in pond water. Large organic molecules with two different molecular weights were characteristically observed. A large number of trace metals (41 elements) were found in those organic molecules.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3475-3482 (1996) [Vol. 69, No. 12, December, 1996]
The kinetics of electron transfer from azide to [NiIV (L1 )2 ]2+ and [NiIV (L2 )]2+ (where HL1=6 -amino-3-methyl-4-azahex-3-en-2-one oxime and H2L2=3 ,14-dimethyl-4,7,10,13-tetraazahexadeca-3,13-diene-2,15-dione dioxime) complexes have been followed spectrophotometrically in the range pH 2.0-8.0 at 30 °C. Marcus cross-reaction relations have been utilized in the analysis of the probable paths of electron transfer.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3483-3488 (1996) [Vol. 69, No. 12, December, 1996]
Yuka Sato,
Takanori Kotera,
Ryoji Nukada,
Daisuke Yoshioka, and
Kuninobu Kasuga
A series of chain complexes of rhodium(II) trifluoroacetate, [Rh2 (O2 CCF3 )4 (p -Q)]n (p -Q=1 ,4-benzoquinone, 1,4-naphthoquinone, and 2,3-dimethyl-1,4-benzoquinone) have been prepared. The chain structures with alternated arrangements of Rh2 (O2 CCF3 )4 dimers and the p -quinones have been confirmed by the X-ray structure analyses.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3489-3498 (1996) [Vol. 69, No. 12, December, 1996]
and
Yasuyoshi Sayama
A series of ten trinuclear heterometal complexes with 2-[(3-aminopropyl)amino]ethanethiol (HL), [(MA L2 )2 MB ](ClO4 )2 .2dmac.2X ([MA , MB]=[Mn , Zn], [Mn, Cd], [Fe, Zn], [Fe, Cd], [Fe, Hg], [Co, Zn], [Co, Cd], [Ni, Zn], [Ni, Cd], [Ni, Hg]; dmac=N ,N -dimethylacetamide, X=H2O or CH3 OH), have been synthesized and characterized by infrared and electronic spectroscopies, temperature dependence of magnetic susceptibilities (80-300 K), and single-crystal X-ray diffraction technique.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3499-3504 (1996) [Vol. 69, No. 12, December, 1996]
Recovery of silver(I) from thiosulfate media can be performed by solvent extraction with thiuram diulfides. Among the extractants considered in the study, tetramethylthiuram disulfide was found to be the most promising extractant and thus, its selectivity for silver(I) extraction from a thiosulfate medium and from an analytical photographic fixing solution were evaluated.
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Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3505-3511 (1996) [Vol. 69, No. 12, December, 1996]
A discrete microsampling technique for multielement determination of trace elements by ICP-MS has been investigated for analysis of samples containing a large amount of matrix elements. The present system was applied to the analysis of standard sediment sample and 30 elements at the g g-1
level were determined without matrix separation.
=============================
Articles
Orgainc and Biological
=============================
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3513-3521 (1996) [Vol. 69, No. 12, December, 1996]
Oxidation of toluenes using synthetic iron-porphyrin, FeTPPCl8 Cl, and pentafluoroiodosylbenzene was investigated. The products were the corresponding benzyl alcohols and benzaldehydes. Hammett plots and a deuterium isotope effect suggested that the rate-determining step in the model system was hydrogen abstraction, which was followed by rebound of an OH group. Electron transfer process and concerted mechanism were discussed.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3523-3531 (1996) [Vol. 69, No. 12, December, 1996]
and 7-Fluoro-17,20-dimethyl-2,4-methyleneprostacyclin
New and facile syntheses of 7-fluoroprostaglandin F2
1
and chemically stable 7-fluoro-17,20-dimethyl-2,4-methyleneprostacyclin
2
from commercially available methylenecyclopentanone
5
are described.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3533-3542 (1996) [Vol. 69, No. 12, December, 1996]
and
Akira Sera
The irradiation of oxime O-ethers 2 derived from N -substituted 3-acyl-1,2-dihydrocinnoline-1,2-dicarboximides in benzene afforded rearranged product 3 possesing [1,3,5]triazino[1,2-a ]indole skeletons in good yields. The photoreaction should occur through the nitrogen-nitrogen bond cleavage at polar excited states followed by skeletal rearrangements.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3543-3549 (1996) [Vol. 69, No. 12, December, 1996]
Then new ichtyotoxic cembranoids were isolated from the soft coral, Sarcophyton sp.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3551-3561 (1996) [Vol. 69, No. 12, December, 1996]
The total syntheses of (-)-PI-201 ( 1 ) and its stereoisomers were achieved by featuring the intramolecular Diels-Alder cycloaddition of triene 2 .
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3563-3569 (1996) [Vol. 69, No. 12, December, 1996]
Cis - and trans -bis(N -methylimidazolyl)tetraethyltetramethylporphyrin Mg complexes were prepared. Mg porphyrins have a high tendency towards dimer formation through coordination from imidazolyl to metal in a similar way to Zn, and trans -Mg porphyrin accepts further the sixth coordination to grow from a dimer to a trimer.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3571-3574 (1996) [Vol. 69, No. 12, December, 1996]
The free energy of binding between catalytic antibodies and substrates in transition states is correlated to the properties (solvent accessible surface area (SAS), enthalpy of hydration, and polarizability) of the substrates. The ground-state substrates show less correlation.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3575-3579 (1996) [Vol. 69, No. 12, December, 1996]
Pepsin-solubilized collagen was characterized by a capillary electrophoresis. A good separation of polypeptides was attained and the signals were assigned to
1,
2, 
, and 
.
1 and
2 signals were found to split into several peaks, reflecting their charges, as shown in the figure.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3581-3590 (1996) [Vol. 69, No. 12, December, 1996]
,
Hisayoshi Yoshihara
, and
Katsuyuki Ogura*
In an aqueous methanol, racemic 1,2,3,4,10,14b-hexahydrodibenzo[c ,f ]pyrazino[1,2-a ]azepine ( 1 ) was resolved enantioselectively via a crystalline salt consisting of 2,3-di-O -benzoyl- D -(-)-tartaric acid ((+)-DBT), (R )- 1 , MeOH, and H2 O in a 1 : 2 : 2 : 2 ratio, where the puckered layers were constructed by (+)-DBT. This framework is one of the few types of the host motifs derived from 2,3-di-O -(arylcarbonyl)tartaric acids.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3591-3594 (1996) [Vol. 69, No. 12, December, 1996]
The kinetic and activation parameters for the enzymatic decarboxylation of arylmalonic acid derivatives were obtained in order to understand the conformation of the substrate binding to the active site of the enzyme. The enzymatic reaction proceeds via a synperiplanar conformation with regard to ortho
- and
-substituent of the substrate.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3595-3600 (1996) [Vol. 69, No. 12, December, 1996]
2,2'
-Bi-5,6-dihydropyrrolo[2,1-
a
]isoquinolin-3(2
H
)-one Dimers with a Twisted C=C Bond
A 1,1' -dimethyl dimeric compound was autoxidized to give 1,10b-dioxygenated products, while a 1,1' -dichloro dimer underwent a chlorine-hydrogen exchange to yield a 1,1' -dihydro compound by heating in n -BuOH and Cl2 CHCHCl2 . These reactions might result from a strain around the twisted C2 =C2' double bond.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3601-3605 (1996) [Vol. 69, No. 12, December, 1996]
and
Scott S. Woodard
Alcohols were catalytically oxidized with N -chloro-4-chlorobenzenesulfonamide sodium salt to the corresponding carbonyl compounds by the addition of a 0.01-0.03 molar amount of dimethyl 2,2' -diselenodibenzoate, and a catalytic species containing a divalent selenium was isolated from the reaction mixture. The reaction mechanism is discussed.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3607-3612 (1996) [Vol. 69, No. 12, December, 1996]
Opioid Receptors by Morphiceptin Analogs Containing
S
-(3-Nitro-2-pyridylthio)cysteine
Tsugumi Fujita, and
Yasuyuki Shimohigashi*
The S
-(3-nitro-2-pyridylthio) (Npys) group only reacts with a free mercapto group to form a disulfide bond. Analogs with Cys(Npys) at position 4 or 5 of morphiceptin were found to bind covalently to
receptors, but not to 
receptors, resulting in an exclusive affinity labeling.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3613-3617 (1996) [Vol. 69, No. 12, December, 1996]
and
Kuo-Hsiung Lee
Two new quassionoids, ailantiol C( 1 ) and ailantinol D( 2 ), were isolated from the stem bark of Ailanthus altissima . Their structures were elucidated from spectral evidence.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3619-3631 (1996) [Vol. 69, No. 12, December, 1996]
The interaction between guanidinium monolayers and aqueous polycarboxylates was investigated by the
-A
isotherm, FT-IR spectroscopy, and an XPS measurement. The molecular packing in the complexed monolayers was controlled by the distance and the relative orientation of carboxylate groups in aqueous guests.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3633-3638 (1996) [Vol. 69, No. 12, December, 1996]
The configuration of 9-[p -(alkoxy)benzylidenehydrazono]-2,7-dinitrofluorene ( 1 ) was assigned to be the E form around the benzylideneamino moiety. The azine 2 , derived from 2-nitrofluorenone, was a configurational mixture, or the EE and ZE forms. The ZE form was thermodynamically more stable than the EE . Some of 1 (R=C4 -C6 ) and the 3,6-dinitro isomer (R=C7 -C9 ) show liquid-crystalline properties.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3639-3650 (1996) [Vol. 69, No. 12, December, 1996]
Oxazaborolidinone 1 serves as an efficient catalyst for the ring-cleavage reaction of chiral acetals derived from (R )-1,3-butanediol. Removal of the chiral auxiliary from the ring-cleavage products by a two-step sequence furnishes the corresponding enantiomerically enriched functionalized secondary alcohols.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3651-3658 (1996) [Vol. 69, No. 12, December, 1996]
3
-Cephems through Addition/Cyclization of Allenecarboxylates
and
Sigeru Torii*
The synthesis of 3-substituted 3
-cephems was successfully achieved by addition/cyclization of allenecarboxylates with heteroatom nucleophiles.
=============================
Articles
Applied and Materials
=============================
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3659-3665 (1996) [Vol. 69, No. 12, December, 1996]
Colloidal stability of o/w-emulsion of
-linolenic acid (ALA) with or without tri-octanoylglycerol (TriC8
) was investigated in the presence of hydrophobized polysaccharide, cholesteryl-bearing pullulan (CHP). The smaller and more colloidally stable o/w-emulsion was formed with an ALA/TriC8
/CHP mixture.
Copyright (C)
1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3667-3671 (1996) [Vol. 69, No. 12, December, 1996]
2 : 1 type 3-(methacryloxy)propyl magnesium phyllosilicate was synthesized at room temperature by the copolymerization reaction of a [3-(methacryloxy)propyl]trimethoxysilane to metal chloride hexahydrate. The polymers have an inorganic part of phyllosilicate-like structure such as mica or smectite, and organic side chains linked to the inorganic framework through an -Si-C- covalent bond.
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3673-3679 (1996) [Vol. 69, No. 12, December, 1996]
Akihiro Mizukami,
and
Kenji Omasa
Atmospheric formaldehyde was absorbed by various tree species through the stomata at rates from 8.6 (Japanese black pine) to 137 ng dm-2 h-1 ppb-1 (Lombardy poplar). A linear relationship between the absorption rates of formaldehyde and the transpiration rates was observed for these tree species (r=0.983 , n=77 ).
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1996 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
69, 3681-3684 (1996) [Vol. 69, No. 12, December, 1996]
The calix[4]arene-mediated transport of alkali ions across black lipid membranes (BLM) of synthetic amphiphiles was examined using charge pulse relaxation technique. The selective transport of Na+ ions was observed. Synthetic BLM's affect the ion-complexation/release processes at the membrane interface.
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