-
Katsuhiro Takahashi, Kazuya Hiratsuka, Hideo Sasaki, Shinobu Toshima
1979 Volume 8 Issue 4 Pages
305-308
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The catalytic activity of metal porphyrins for the electroreduction of carbon dioxide was investigated by the measurements of current-potential curves on the Hg(Pt) electrode in aqueous electrolytic solutions. Metal-free, cobalt, iron and copper porphyrins(mesotetracarboxyphenylporphyrins, tetraphenylporphinesulfonate) were examined. Cobalt complexes were active but other metal porphyrins showed no activity. The reduction product was confirmed to be formic acid by the resorcinol test.
View full abstract
-
Koichi Funazo, Minoru Tanaka, Toshiyuki Shono
1979 Volume 8 Issue 4 Pages
309-310
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
A new gas chromatographic procedure for the analysis of trace amount of nitrite ion in water has been developed. The procedure involves the conversion of nitrite ion into 3,4-dichlorobromobenzene which is subsequently determined by electron capture gas chromatography. The coexistence of chloride ion in a large amount with nitrite ion gives rise to the production of 1,2,4-trichlorobenzene in addition to 3,4-dichlorobromobenzene.
View full abstract
-
Fusao Kido, Riichiro Maruta, Kentaro Tsutsumi, Akira Yoshikoshi
1979 Volume 8 Issue 4 Pages
311-312
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
2,4,5,5
a,6,7,8,9
a,9
bα-Decahydro-9
aβ-hydroxy-5
aβ-methoxycarbonyl-9β-methyl-2-oxo-naphtho[1,2-
b]furan, the major annulation product from 4-vinylfuran-2(5
H)-one and 2-methoxycarbonyl-6-methylcyclohexanone, was transformed into racemic frullanolide.
View full abstract
-
Isao Nakamura, Kaoru Harada
1979 Volume 8 Issue 4 Pages
313-314
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The reaction of methyl α,β-dibromobutyrate with α-methylbenzylamine resulted in the formation of
cis- and
trans-1-α-methylbenzyl-2-methoxycarbonyl-3-methyl aziridines(II and III), which were converted to threonine predominantly upon the hydrolytic ring opening of the aziridines.
View full abstract
-
Takeo Kawabata, Teruo Shinmyozu, Takahiko Inazu, Tamotsu Yoshino
1979 Volume 8 Issue 4 Pages
315-318
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Two isomeric [3.3](1,4)naphthalenophanes,
syn and
anti (8 and 9), were synthesized. The absorption maxima 237 and 330 nm for 8, as well as 231, 241, and 325 nm for 9 may be ascribed to the transannular π-electronic interaction between two naphthalene moieties. On irradiation,
syn- and
anti-[3.3](1,4)naphthalenophane derivatives were transformed to the photoisomers (10 and 11) which were reconverted to the original compounds (2 and 3) when heated in the solid phase at 175°C.
View full abstract
-
Mamoru Shimoi, Akira Ouchi, Shoichi Sato, Yoshihiko Saito
1979 Volume 8 Issue 4 Pages
319-320
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The crystal and molecular structure of the title complex has been determined by X-ray diffraction. It is a distorted trigonal-bipyramidal complex: each dithiophosphato ligand spanns an oblique edge of the coordination polyhedron, and triphenylphosphine occupies the fifth coordination site with unusually long Co–P bond length of 2.551 Å.
View full abstract
-
Yoshikazu Kimura, Yoshiro Tomita, Saburo Nakanishi, Yoshio Otsuji
1979 Volume 8 Issue 4 Pages
321-324
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The Fe(CO)
5-aqueous NaOH reagent system in benzene in the presence of a phase-transfer catalyst reacts efficiently with alkyl halides to afford symmetrical and unsymmetrical ketones, depending on the structure of alkyl halides and procedures employed. The features of this reaction are discussed.
View full abstract
-
Masahiro Nitta, Kiyotaka Matsuo, Kazuo Aomura
1979 Volume 8 Issue 4 Pages
325-328
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Various kinds of alcohols and hydrocarbons except chain hydrocarbon are oxidatively dehydrogenated on manganese nodule catalyst. The catalytic activity shows no decrease for long reaction time in the presense of oxygen in the reactant. The surface excess oxygen on manganese nodule is strongly concerned in these reactions as active spieces.
View full abstract
-
Tatsuo Numata, Hideo Togo, Shigeru Oae
1979 Volume 8 Issue 4 Pages
329-332
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Sulfoxides were found to be deoxygenated slowly with thiosilane (PhSSiMe
3), while deoxygenation of sulfoxides with the thiosilane proceeded smoothly in the presence of a catalytic amount of tetra-butylammonium bromide. For a preparative purpose, a mixed system of thiol and trimethylsilyl chloride can be used successfully for both deoxygenation of sulfoxides and deimination of sulfimides.
View full abstract
-
Haruo Koike, Takashi Tokoroyama
1979 Volume 8 Issue 4 Pages
333-336
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The synthesis of the A ring moiety of triptolide
1 has been achieved, starting from dehydroabietic acid
3.
View full abstract
-
Tetsuzo Kato, Hitoshi Kimura
1979 Volume 8 Issue 4 Pages
337-338
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Refluxing of ethyl 3-oxobutanoate (
1) in benzene in the presence of aluminum chloride gave ethylbenzene (
4), 9,10-dimethylanthracene (
5), 3-phenylbutanoic acid (
7), and 3-methyl-1-indanone (
9). Similar reaction of ethyl 4-bromo-3-oxobutanoate (
2) yielded
4,
5, 4-bromo-3-oxobutanoic acid (
3), 3,4-diphenylbutanoic acid (
8), and 3-phenyl-1-tetralone (
10).
View full abstract
-
Pangbu Hong, Bo-Re Cho, Hiroshi Yamazaki
1979 Volume 8 Issue 4 Pages
339-342
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The reaction of benzene with diphenylacetylene catalyzed by Rh
4(CO)
12 under carbon monoxide gives triphenylethylene and 2,3-diphenylindenone. The reactions of mono-/di-substituted benzenes with the acetylene also give the corresponding olefins and 2,3-diphenylindenones.
View full abstract
-
Ryuichi Minami, Takayuki Fueno
1979 Volume 8 Issue 4 Pages
343-346
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
A thermal rate constant k(T) is computed by the conditional Monte Carlo trajectory method. Characteristic of this method is that it reduces the trajectory data directly to k(T) without explicit calculation of the cross sections. Reaction systems H
2+I → HI+H and H
2+I
2→ 2HI are studied as examples.
View full abstract
-
Hidetsugu Takagaki, Shingo Tanabe, Morio Asaoka, Hisashi Takei
1979 Volume 8 Issue 4 Pages
347-350
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Various
N-benzoyl-α,β-dehydro-α-amino acids were synthesized in high yields by the reaction of 2-phenyl-5-trimethylsiloxyoxazole with aldehydes or acetals in the presence of tin(IV) chloride.
View full abstract
-
Shunji Utsuno, Arimichi Hayashi, Susumu Kondo, Minoru Utsumi
1979 Volume 8 Issue 4 Pages
351-354
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The title complex was prepared and all the geometrical isomers and the diastreoisomers were separated. The structure of each isomer was assigned in terms of
13C-NMR and CD spectra.
View full abstract
-
Yoshihiro Makide, Takeshi Tominaga, F. Sherwood Rowland
1979 Volume 8 Issue 4 Pages
355-358
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Preliminary measurements were conducted of atmospheric concentrations of CCl
2F
2, CCl
3F, CCl
2FCClF
2, CH
3CCl
3, CCl
4, CHCl=CCl
2 and CCl
2=CCl
2 in remote and urban areas in Japan to determine accurate background levels as well as the profile of local pollution. Samples collected in all-metal canisters were analyzed with an extremely clean stainless steel high vacuum sampling and calibration system and an EC-GC.
View full abstract
-
Joseph Klein
1979 Volume 8 Issue 4 Pages
359-362
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
A general mechanism for the halogenation of open-chain and cyclic sulfoxides is proposed. This mechanism gives an account for all the seemingly contradictory experimental results found by various groups, including the chirality of the products.
View full abstract
-
Yoshihiro Sugi, Akio Matsuda, Ken-ichiro Bando, Kazuhisa Murata
1979 Volume 8 Issue 4 Pages
363-364
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The cobalt carbonyl complex modified by α, ω-bis(diphenylphosphino) alkane (PCnP, n=2 or 3) was an effective catalyst for the N-alkylation of morpholine by carbonyl compounds, in which carbon monoxide and water were used in place of hydrogen.
N-Methyl,
N-isopropyl, and
N-benzylmorpholines were obtained in excellent yields.
View full abstract
-
Takehiko Nishio, Yoshimori Omote
1979 Volume 8 Issue 4 Pages
365-368
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Reduction of β-alkylthio α,β-unsaturated ketones [R
1COCH=C(R
2)SR
3] with lithium aluminium hydride (LiAlH
4) or sodium borohydride (NaBH
4) gave α,β-unsaturated ketones (R
1CH=CHCOR
2) in moderate yields. In some cases, the saturated γ-hydroxy sulfide is obtained in high yield.
View full abstract
-
Osamu Kaneko, Norio Matsuura, Keiichi Kimura, Toshiyuki Shono
1979 Volume 8 Issue 4 Pages
369-372
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Enhanced induced circular dichroism (ICD) was observed, using ionic benzophenone derivatives as guests and crown compounds containing chiral moieties as hosts. The strength of the ICD spectra was found to depend highly on the solvent polarity and temperature. In methanol–water mixtures the formation constant of crown complexes could be evaluated by the measurement of the ICD.
View full abstract
-
Hajime Takahashi, Masaaki Ito
1979 Volume 8 Issue 4 Pages
373-374
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Various 7-oxabicyclo[2.2.1]heptanes were synthesized by the photo-induced hypoiodite reaction of 3-cyclohexenols, followed by reduction of 2-iodo-7-oxabicyclo[2.2.1]heptanes.
View full abstract
-
Gen-etsu Matsubayashi, Yasuo Kondo, Toshio Tanaka, Satoshi Nishigaki, ...
1979 Volume 8 Issue 4 Pages
375-378
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
S,
S-Dimethylsulfonium 2-picolinylmethylide (PyC(O) \barCH
+SMe
2, Y
dms) reacts with PtCl
2(SMe
2)
2 to give PtCl
2Y
dms and PtCl(SMe
2)(PyC(O)CHCl); the former involves the coordination of both the pyridine nitrogen and ylide carbon atoms, and the latter is a complex with the 2-picolinylchloromethyl ligand which is formed by the fission of the ylide carbon to sulfur bond. An X-ray structure of the latter complex is determined.
View full abstract
-
Hitosi Nozaki, Koichiro Oshima, Kazuhiko Takai, Shuji Ozawa
1979 Volume 8 Issue 4 Pages
379-380
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
An efficient way of producing organoaluminum enolates of
t-butyl acetate and of ketones is based on the title aluminum amide. Subsequent addition to a carbonyl moiety of various substrates affords the desired aldol adducts in fair to excellent yields.
View full abstract
-
Yasuaki Okamoto, Hiroyuki Tomioka, Toshinobu Imanaka, Shiichiro Terani ...
1979 Volume 8 Issue 4 Pages
381-384
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The surface states of MoO
3/Al
2O
3 catalysts used for the hydrodesulfurization of thiophene were characterized with XPS and compared with the activities for the reaction. It was found that the molybdenum with a stoichiometry of S/Mo(IV)=1 is much more active than MoS
2, indicating the importance of an anion vacancy for the reaction.
View full abstract
-
Yoshinori Yamamoto, Hidetaka Yatagai, Kazuhiro Maruyama
1979 Volume 8 Issue 4 Pages
385-386
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Reaction of lithium alkylthioallylboron “ate” complexes (
3), prepared from alkylthioallyllithium (
1) and triethylborane at −78°C in ether, with carbonyl compounds proceeds via the attack at the α-position to produce the corresponding α-alkylated derivatives (
4) in good yields.
View full abstract
-
Hiroyuki Nakazumi, Akira Asada, Teijiro Kitao
1979 Volume 8 Issue 4 Pages
387-388
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
4-Methyl-2
H-1-benzothiopyran-2-ones (4-methylthiocoumarins) were conveniently prepared by the reaction of
S-phenyl 3-oxobutanethioates with aluminium chloride. The spectral characteristics of these compounds were summarized.
View full abstract
-
Yutaka Watanabe, Teruaki Mukaiyama
1979 Volume 8 Issue 4 Pages
389-390
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The reaction of
O-alkyl
S,
S-diaryl phosphorodithioates with alkyloxytrialkylstannanes afforded the corresponding
O,
O-dialkyl
S-aryl phosphorothioates in good yields.
View full abstract
-
Yasuhiro Yanamoto, Katsuyuki Aoki, Hiroshi Yamazaki
1979 Volume 8 Issue 4 Pages
391-392
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
A new isocyanide cluster of platinum, Pt
7(C
9H
9N)
12, was prepared by reduction of dichloro-bis(2,6-xylyl isocyanide)platinum(II) with sodium amalgam.
View full abstract
-
Shiro Kobayashi, Takatoshi Kobayashi, Takeo Saegusa
1979 Volume 8 Issue 4 Pages
393-394
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Spiro diacyloxyphosphorarnes (
4) and (
5) were prepared by single-step reactions of a cyclic acyl phosphonite (
1) with α-keto acids (
2) and with acrylic acid (
3) or β-propiolactone.
View full abstract
-
Masatsune Kainosho, Katsumi Ajisaka, Seiji Sawada, Masaru Tanokura, Ta ...
1979 Volume 8 Issue 4 Pages
395-396
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The 270-MHz
1H NMR spectrum of the mixture of deuterated histidines was compared at pD 8.2 with that of
L-histidine. It was seen that the lower-field β-proton resonance disappeared in the deuterated species, in which one of the β-protons was selectively replaced with a deuterium. Accordingly, at this pD, the lower-field β-proton of
L-histidine is assingnable to pro-R and the higher-field one to pro-S.
View full abstract
-
Takeshi Asai, Hideko Kiriyama
1979 Volume 8 Issue 4 Pages
397-398
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The phase transition of (NH
4)
2PdCl
4 was confirmed at 132 K by the proton
T1. A thermal hysteresis in
T1 was observed, indicating that the transition is of a first-order. The transition is probably accompanied by the order–disorder change of an ammonium ion, but this is not effective for the transition temperature.
View full abstract
-
Vichai Reutrakul, Surachai Nimgirawath, Sirichai Panichanun, Piniti Ra ...
1979 Volume 8 Issue 4 Pages
399-400
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The reaction of the anion derived from α-dialkylaminonitriles with acrylonitrile, followed by hydrolysis with aqueous acids or cupric sulfate in 95% ethanol gave γ-ketonitriles in good yields. This procedure is highly convenient for the synthesis of various γ-ketonitriles.
View full abstract
-
Osamu Yamaguchi, Kazuhide Yabuno, Kiyoshi Takeoka, Kiyoshi Shimizu
1979 Volume 8 Issue 4 Pages
401-404
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Metastable SrSiO
3 was formed during the course of the solid state reaction of SrCO
3 and SiO
2. The reaction mechanism was investigated by means of DTA and X-ray diffraction analysis. It was found that stable SrSiO
3 is formed via two processes: (a) transformation of metastable into stable SrSiO
3; (b) solid state reaction between Sr
2Sio
4 and Sio
2.
View full abstract
-
Mizuka Sano, Hiroo Inokuchi
1979 Volume 8 Issue 4 Pages
405-408
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The effect of hydrogen on the basal-plane electrical resistivity was studied for C
8K, C
24K, C
8Cs and C
24Cs intercalation compounds. The admission of hydrogen onto cooled C
8K and C
24K induced a reversible change in the resistivity below 200 K, and an irreversible increase in the resistivity at room temperature.
View full abstract
-
Takashi Matsumoto, Shoji Takeda
1979 Volume 8 Issue 4 Pages
409-412
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
The highly-oxygenated tricyclic diterpenes, coleon U and coleon V, were successfully synthesized starting from (+)-ferruginol via an intermediate, (+)-12-benzoyloxyabieta-8,11,13-triene-6β,11-diol.
View full abstract
-
Jun-ichi Hayami, Nobuhisa Hihara, Aritsune Kaji
1979 Volume 8 Issue 4 Pages
413-414
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Nucleophilic and nucleofugic reactivities of the variety of anions were studied in reversible Finkelstein reactions of benzyl derivatives. A leaving anion plays a major role in determining the reaction rate while an attacking anion shows only a limited role.
View full abstract
-
Yasuo Kikugawa
1979 Volume 8 Issue 4 Pages
415-418
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Pyridine-borane in trifluoroacetic acid reduced aldehydes to symmetric ethers, and to unsymmetric ethers with the combination of alcohols.
View full abstract
-
Satoshi Takano, Atsushi Nakanishi, Daisuke Uemura, Yoshimasa Hirata
1979 Volume 8 Issue 4 Pages
419-420
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
A new amino acid with a maximum at 334 nm, supposed to be biogenetically related to the characteristic UV-absorbing compounds from the zoanthid
Palythoa tuberculosa, has been isolated from
Porphyra tenera Kjellman and its structure determined.
View full abstract
-
Norikazu Ueyama, Michio Nakata, Takeo Araki, Akira Nakamura, Shinsuke ...
1979 Volume 8 Issue 4 Pages
421-424
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
μ-Disulfido-dioxodimolybdenum(V) complexes of (Cys)
2−, (Cys-OMe)
−, (Ac-Cys)
2−, (Glutathione)
2− anions exhibit strong Raman bands at 930–950 cm
−1 and 420 cm
−1 assignable respectively to Mo=O and Mo–S
bridge stretching vibrations. The resonance Raman spectra provide an excitation profile which is useful for assigning the broad electronic absorption due to the (
Remark: Graphics omitted.) moiety.
View full abstract
-
Gorô Mori, Yoshimasa Takashima
1979 Volume 8 Issue 4 Pages
425-428
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Mössbauer parameters, δ and ΔE, for the known series of complexes, [FeHL(dppe)
2][BPH
4](dppe=1,2-bis(diphenylphosphino)ethane; L=CO, PhCH
2NC, P(OMe)
3, N
2, etc.), and a new series of complexes, [FeHX(dppe)
2] (X=CN
−, NO
2−, NCS
−, NCO
−, Cl
−, etc.), were obtained. From these data in combination with i.r. data, the bonding properties of the ligands L and X are discussed.
View full abstract
-
Norio Nishimura, Yoshimi Sueishi, Shunzo Yamamoto
1979 Volume 8 Issue 4 Pages
429-432
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Substituent effects on the rate of the thermal isomerization of triphenylformazans have been studied at various temperatures. Strictly linear Δ
H≠–Δ
S≠ relationship was found to hold for a limited series of compounds. The isokinetic temperature β was calculated to be 281K from the Δ
H≠ vs. Δ
S≠ plot. Reversal in the rate for these compounds was observed above and below this temperature.
View full abstract
-
Atsunari Hiraya, Yasuo Udagawa, Mitsuo Ito
1979 Volume 8 Issue 4 Pages
433-436
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Hyper Raman spectrum of liquid cyclohexane was observed with frequency doubled YAG laser as an exciting source. In addition to the counterparts of ir absorption bands, a strong band was observed at 1107 cm
−1 and assigned to an a
1u vibration, which was forbidden both in ir and Raman and allowed in hyper Raman.
View full abstract
-
Naomi Hoshino, Yutaka Fukuda, Kozo Sone
1979 Volume 8 Issue 4 Pages
437-440
Published: April 05, 1979
Released on J-STAGE: March 27, 2006
JOURNAL
FREE ACCESS
Thermal decomposition of the mixed nickel(II) complexes, [Ni(tmen)(acac)(OH
2)
2]X(X=Br or I), occurs in the following two ways:
[Ni(tmen)(acac)(OH
2)
2]X→[Ni(tmen)(acac)
2]+[Ni(tmen)X
2] (1)
[Ni(tmen)(acac)(OH
2)
2]X→[Ni(tmen)(acac)]X (2)
The reaction(1) is favored by the bromide, and the reaction(2) by the iodide. Structures of these complexes in some organic solutions are also discussed.
View full abstract
-
1979 Volume 8 Issue 4 Pages
441
Published: 1979
Released on J-STAGE: February 09, 2011
JOURNAL
FREE ACCESS
