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Reizo Kato, Takehiko Mori, Akiko Kobayashi, Yukiyoshi Sasaki, Hayao Ko ...
1984 Volume 13 Issue 1 Pages
1-4
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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The crystal of (Et
4N)
0.5[Ni(dmit)
2] belongs to triclinic system (dmit: isotrithionedithiolate). In the crystal, face-to-face stacking and side-by-side arrangement of Ni(dmit)
2 molecules form the two-dimensional S···S networks, which are weakly connected in the third direction by thioketone sulfur atoms in the isotrithione ring. The electrical conductivity measurements show that (Et
4N)
0.5[Ni(dmit)
2] is a semiconductor with small anisotropy.
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J. W. S. Stevenson, T. A. Bryson
1984 Volume 13 Issue 1 Pages
5-8
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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Boron annulation (hydroboration and carbonylation or equivalent technique) of 1,5-dienes forms hydroazulene systems which are prototypes of pseudoguaianolides.
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R. J. Borders, T. A. Bryson
1984 Volume 13 Issue 1 Pages
9-12
Published: January 05, 1984
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Utilization of complexed monochloroborane as a reducing agent for ketals and acetals is reported.
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Yukito Murakami, Akio Nakano, Akira Yoshimatsu
1984 Volume 13 Issue 1 Pages
13-16
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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The substrate-binding property of single-walled vesicles formed with
N,
N-ditetradecyl-
Nα-(6-trimethylammoniohexanoyl)-
L-alaninamide bromide was investigated from both static and dynamic viewpoints, hexyl p-nitrophenyl ether being used as a hydrophobic pseudo-substrate. The substrate-binding equilibrium was achieved through a two-step mechanism.
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Kumiko Sato, Michiko Konno, Hirotoshi Sano
1984 Volume 13 Issue 1 Pages
17-20
Published: January 05, 1984
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The structure of the ordered room-temperature phase of tetrachloroferrocene was determined by single-crystal X-ray diffraction. The structure is monoclinic, space group P2
1 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.
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Michiko Konno, Mami Mikami-Kido
1984 Volume 13 Issue 1 Pages
21-24
Published: January 05, 1984
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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.
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Shin-ichi Inaba, Reuben D. Rieke
1984 Volume 13 Issue 1 Pages
25-28
Published: January 05, 1984
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Oxidative addition of benzylic halides to nickel in the metallic state followed by insertion of carbon monoxide generated from alkyl oxalyl chlorides proceeded smoothly to give symmetrical 1,3-diarylpropan-2-ones in moderate yields.
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Leonard R. Fitzgerald, Robert L. Blakeley, Burt Zerner
1984 Volume 13 Issue 1 Pages
29-32
Published: January 05, 1984
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In alkaline solution, 4-nitrophenyl
N-hydroxycarbamate undergoes reaction by elimination to yield 4-nitrophenoxide ion, and by rearrangement to yield
N-carboxy-4-nitrophenoxyamine. The effect of pH on the yield of the rearrangement product establishes that a transient spiro Meisenheimer complex is formed reversibly. Aromatization of this species occurs by two competing pH-independent reactions: one involves expulsion of a hydroxamate ion; the other involves the formation of a carbamate ion
via a general base catalyzed collapse of the complex.
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Yasuji Izawa, Yasushi Watoh, Hideo Tomioka
1984 Volume 13 Issue 1 Pages
33-36
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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Desyl halide, α-bromophenylacetate, and 2,5-dimethoxy-α-bromoacetophenones undergo smooth photomethanolysis, whereas simple α-bromoacetophenone undergoes photoreduction to give acetophenone.
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Bronislaw Czech, Anna Czech, Sang Ihn Kang, Richard A. Bartsch
1984 Volume 13 Issue 1 Pages
37-40
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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Two novel ferrocene crown compounds in which the ferrocene nucleus bears one and two 18-crown-6 units are synthesized and their alkali metal cation complexation is examined in solvent extraction. The ferrocene biscrown exhibits selectivity for K
+ and Rb
+ in competitive extraction.
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Yoshio Uemichi, Yasunori Kashiwaya, Akimi Ayame, Hisao Kanoh
1984 Volume 13 Issue 1 Pages
41-44
Published: January 05, 1984
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Catalytic effects of activated carbon on the degradation of polyethylene were investigated. Activated carbon was highly effective for the formation of normal alkanes (C
1–C
5 fractions) and aromatics (C
6–C
8). Experimental results were explained in terms of high cracking and cyclization activities of the catalyst.
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Udo H. Brinker, Lothar König
1984 Volume 13 Issue 1 Pages
45-48
Published: January 05, 1984
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Blcyclo[3.2.1]octa-2,6-dien-8-ylidene nearly exclusively rerranges by 1,2-vinyl migrations. The interaction with the double bond of the six-memberd ring dominates.
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Teruaki Mukaiyama, Isao Tomioka, Makoto Shimizu
1984 Volume 13 Issue 1 Pages
49-52
Published: January 05, 1984
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Highly selective asymmetric acylation of
meso-1,2-diols has been achieved using
d-ketopinic acid chloride as acylating reagent.
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Takashi Tamaki
1984 Volume 13 Issue 1 Pages
53-56
Published: January 05, 1984
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Anthracene-1- or 2-sulfonic and 2-carboxylic acids were found to form one host-two guest inclusion complexes with γ-cyclodextrin in aqueous solutions. The complex formation greatly enhanced the photodimerization of these anthracenes.
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Ichiro Okura, Shigetoshi Aono, Tatsuya Kita
1984 Volume 13 Issue 1 Pages
57-58
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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The cation radical of methylviologen was formed when an aqueous solution containing photosensitizer, methylviologen (MV
2+), and NADPH was irradiated by visible light. On the addition of hydrogenase to the photo-irradiation system hydrogen evolution was observed.
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Teruya Shinjo, Kenji Kawaguchi, Ryoichi Yamamoto, Nobuyoshi Hosoito, T ...
1984 Volume 13 Issue 1 Pages
59-62
Published: January 05, 1984
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By a vacuum deposition method, multilayered films with artificial superstructure have been prepared from mutually insoluble elements, Fe and Mg. X-Ray diffraction confirmed the establishment of very short artificial periods, e.g. Fe(0.8 nm)–Mg(2.4 nm). The multilayer deposition is a very promising technique to fabricate new materials.
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Hirohumi Hinode, Masataka Wakihara, Shigeki Kamiya, Masanobu Saeki, Ma ...
1984 Volume 13 Issue 1 Pages
63-66
Published: January 05, 1984
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Equilibrium vapor pressures of Nb–I system were measured by using the Broudon’s gauge at temperatures between 293 and 1050 K. Considering the main gaseous species of the Nb–I system at high temperatures, the standard Gibbs’ energy functions, ΔG
°=−21.0×10
3+10.1 T (T=850–1000 K), were calculated for the following reaction from both the partial pressures and material balance; Nb (s) + 2 I
2 (g) \
ightleftharpoons NbI
4 (g).
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Takashi Matsumoto, Sachihiko Imai, Shuji Usui, Akira Suetsugu, Shunzi ...
1984 Volume 13 Issue 1 Pages
67-70
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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The racemic megaphone, a cytotoxic neolignan, has been synthesized from 3,4,5-trimethoxybenzaldehyde via an intermediate, 2-methoxycarbonyl-3-methyl-4-(3,4,5-trimethoxyphenyl)-γ-butyrolactone.
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Yasuaki Okamoto, Kiyotaka Fukino, Toshinobu Imanaka, Shiichiro Teranis ...
1984 Volume 13 Issue 1 Pages
71-74
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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It was found that Cu–ZnO catalysts showed maximum specific activities at the composition of 70 wt% CuO for the CH
3OH conversions both in the absence and presence of H
2O. Taking into considerations the kinetic isotope effects and the electronic state and particle size of the Cu metal, it is proposed that the synergistic promotion is bifunctional in nature.
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Koichi Chiba, Masao Kurosawa, Kiyoshi Tanabe, Hiroki Haraguchi
1984 Volume 13 Issue 1 Pages
75-78
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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A discrete microsampling technique using an electrothermal tungsten-boat vaporization device has been applied to atmospheric pressure helium microwave-induced plasma emission spectroemtry. The detection limits of 10
−10–10
−9 g were obtained for Cd, Cu, Fe, Pb, Zn, and P, and the reproducibilities were in the range of 2.4–11.4%.
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Hisaharu Hayashi, Yoshio Sakaguchi, Kunio Mochida
1984 Volume 13 Issue 1 Pages
79-82
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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The yields of the escaping ketyl radicals from the radical pairs formed through the reactions of triethylgermane with the triplet states of acetophenone and xanthone were found to be increased by a magnetic field. The observed increases at 1 T were 3 and 27% for the ketyl radicals of acetophenone and xanthone, respectively.
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Yashige Kotake, Keiji Kuwata
1984 Volume 13 Issue 1 Pages
83-86
Published: January 05, 1984
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ENDOR technique was applied to the determination of the accurate hyperfine splitting constants of protons in several aminoxyl radicals which are frequently used in spin-probe-spin-label method. The result was compared with that of NMR in the concentrated solution of the radicals. The magnitude of hyperfine splitting constants is shown to be very sensitive to the structure of the radical.
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Yoshiki Okamoto
1984 Volume 13 Issue 1 Pages
87-88
Published: January 05, 1984
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The mixed reagent trialkyl phosphite/dialkyl phosphorochloridate reacts readily with α,β-unsaturated aldehydes to give dialkyl 3-(dialkoxyphosphinyl)-1-propenyl phosphate derivatives.
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Kinichi Yokoyama, Yumi Saegusa, Tsutomu Miyashi, Chizuko Kabuto, Toshi ...
1984 Volume 13 Issue 1 Pages
89-92
Published: January 05, 1984
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The reaction of the phenylated bis-homocubane with Fe(III) exclusively afforded the [2+2]cycloreversion product (
6), whereas that with Ag(I) gave
6 together with the skeletal rearranged snoutane derivative.
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Kentaro Okuma, Kenshin Nishimura, Hiroshi Ohta
1984 Volume 13 Issue 1 Pages
93-96
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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Reactions of (dimethylamino)phenyloxosulfonium methylide with epoxides were carried out. When aromatic epoxides were used as substrates, cyclopropyl sulfones and oxetanes were obtained. When aliphatic epoxides were used, the products were only the cyclopropyl sulfones. While the aminooxosulfonium ylide acts as a methylene transfer reagent to give the corresponding oxetanes, an intramolecular S
N2 type reaction of the betaines led to cyclopropyl sulfones.
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Gaku Yamamoto, Michinori Oki
1984 Volume 13 Issue 1 Pages
97-100
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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Dynamic NMR study on 9-(2-alkylphenoxy)-1,4-dimethyltriptycenes revealed that, when the
o-alkyl group is methyl or isopropyl, two conformers,
ap and ±
sc, are separately observed at room temperature and that the interconversion between them occurs by gear rotation with an energy barrier of
ca. 18 kcal mol
−1
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Renji Okazaki, Nobuo Fukuda, Hiroyuki Oyama, Naoki Inamoto
1984 Volume 13 Issue 1 Pages
101-104
Published: January 05, 1984
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Reactions of 2,4,6-tri-t-butylthiobenzaldehyde with Grignard and organolithium reagents gave products via the anion radical of the thioaldehyde. The first example of dimerization of thioketyl radicals was also presented.
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Wataru Yoshikawa, Hideo Akutsu, Yoshimasa Kyogoku, Yuzuru Akamatsu
1984 Volume 13 Issue 1 Pages
105-108
Published: January 05, 1984
Released on J-STAGE: March 27, 2006
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The glycerol part of
E.coli phospholipid was specifically deuterated by supplying
2H
5-glycerol in growth media of glycerol-requiring auxotroph. The
2H-spectra of cardiolipin were obtained for dispersion of the purified deuterated cardiolipin mixed with non-deuterated other components. The structure of the whole polar region of cardiolipin in the lipid bilayer appeared to be dynamically symmetric, and quite rigid.
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Mitsuyasu Kawakami, Hiromi Nagano, Masakazu Iwamoto, Shuichi Kagawa
1984 Volume 13 Issue 1 Pages
109-112
Published: January 05, 1984
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The transport of CO through a thin layer of tetraethylenepentamine was found to be enhanced by the presence of Cu
I ion. The CO uptake measurement and the i.r. study suggested that the facilitated transportation of CO was mediated by the reversible formation of a Cu
I-carbonyl complex.
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Tadashi Shiraiwa, Akihiko Ikawa, Keiji Sakaguchi, Hidemoto Kurokawa
1984 Volume 13 Issue 1 Pages
113-114
Published: January 05, 1984
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An aqueous solution containing
L-phenylalanine (
L-Phe) and
DL-valine,
DL-leucine or
DL-isoleucine in the molar ratio of 1:2 gave adduct composed of equimolar amounts of
L-Phe and the amino acids abounding in
D-isomer as crystals. From the adducts, the recovered free aliphatic amino acids had about 100% optical purity.
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Masaaki Yoshifuji, Katsuhiro Shibayama, Naoki Inamoto
1984 Volume 13 Issue 1 Pages
115-118
Published: January 05, 1984
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1,2-Bis(2,4,6-tri-
t-butylphenyl)diphosphene reacted with butyllithium to give 1-alkyl-2 -butyl-1,2 -bis(2,4,6-tri-
t-butylphenyl)diphosphanes after quenching with various alkyl halides, sulfurization of which afforded diphosphane monosulfides.
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Ryuichi Nakamura, Norio Okada, Akihiro Oomura, Etsuro Echigoya
1984 Volume 13 Issue 1 Pages
119-122
Published: January 05, 1984
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Interaction between Co
2(CO)
8 and TiO
2, NaY zeolite, or dehydroxylated alumina resulted in the formation of a surface cobalt cluster carbonyl whose structure is probably [Co
6(CO)
16−n(L
s)
n](L
s : the surface O
2− or OH group). On the alumina the cluster was observed only at the limited Co loadings. On zeolite the formation of [Co(CO)
4]
− and [Co
6(CO)
15]
2− were also presumed.
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Tosio Sato, Minoru Kurita, Yuji Yoshimura, Hiromichi Shimada, Shigemit ...
1984 Volume 13 Issue 1 Pages
123-126
Published: January 05, 1984
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Zeolites such as ZSM-5 or -4 were easily synthesized by using sludge obtained from geothermal power plants in place of some chemicals. Zeolites prepared were characterized by an X-ray diffractometer and a scanning electron microscope.
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Seitaro Takahashi, Takaki Yamamura, Masaharu Kamo, Kazuo Satake
1984 Volume 13 Issue 1 Pages
127-130
Published: January 05, 1984
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2,4,6-Trinitrophenylalanine gave free alanine and 1-hydroxy-4,6-dinitrobenzotriazole by treating with aqueous solution of hydrazine at pH 7–9 and 30 °C. Applying the reaction to partially trinitrophenylated derivative of lima bean trypsin inhibitor, the fully active protein could be regenerated almost quantitatively.
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Masahiko Iyoda, Kazuhiko Nishioka, Masanori Nose, Shigeyoshi Tanaka, M ...
1984 Volume 13 Issue 1 Pages
131-134
Published: January 05, 1984
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Synthesis of three 2,3-diiodo-1,3-dienes and conversion of these dienes into butatrienes are described. 2,5-Dimethylhexa-2,3,4-triene polymerizes on exposure to air to give the polymeric peroxide (C
6H
12O
2)
n which is reassigned as the structure containing acetylene and peroxide units.
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Wataru Ueda, Ching-Ling Chen, Kiyoshi Asakawa, Yoshihiko Moro-Oka, Tsu ...
1984 Volume 13 Issue 1 Pages
135-138
Published: January 05, 1984
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Structural stability of scheelite catalysts, Bi
1−x/3V
1−xMo
xO
4, in the reduction and reoxidation cycle increases with an increase of the mobility of the lattice oxide ions in the catalysts.
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Hitomi Suzuki, Hiroyuki Tani, Atsuhiro Osuka
1984 Volume 13 Issue 1 Pages
139-142
Published: January 05, 1984
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When treated with diphosphorus tetraiodide in boiling acetonitrile or under neat conditions, arenesulfonic acids, their salts, chlorides, esters, and amides are reduced to aryl disulfides in good to moderate yields.
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Nobuo Nakamura, Michinori Oki
1984 Volume 13 Issue 1 Pages
143-146
Published: January 05, 1984
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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.
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Koichi Narasaka, Yutaka Ukaji
1984 Volume 13 Issue 1 Pages
147-150
Published: January 05, 1984
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syn-1,3-Amino alcohols are prepared in good yields by the stereoselective reduction of β-hydroxy ketone-O-benzyloximes derived from acyclic β-hydroxy ketones with lithium aluminium hydride.
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Midori Ishitsuka, Takenori Kusumi, Jiro Tanaka, Mitsuo Chihara, Hirosh ...
1984 Volume 13 Issue 1 Pages
151-154
Published: January 05, 1984
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Three new diterpenes, which possess a cyclononane skeleton, have been isolated from the brown alga
Pachydictyon coriaceum, and their structures have been determined spectroscopically.
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