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Otohiko Tsuge, Shuji Kanemasa, Kiyotaka Yorozu, Kazunori Ueno
1985 Volume 14 Issue 11 Pages
1601-1604
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
JOURNAL
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N-Benzylideneaminoacetonitrile is a synthetic equivalent of methanenitrile benzylide via a cycloaddition and elimination sequence. Its reactions with olefinic dipolarophiles provide stereochemically defined 1- or 2-pyrrolines.
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Masatoshi Shibata, Noboru Kawata, Tsuyoshi Masumoto, Hisamichi Kimura
1985 Volume 14 Issue 11 Pages
1605-1608
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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An amorphous Au
25Zr
75 alloy showed a high catalytic activity for hydrogenation of carbon monoxide. Thus, the rate of methanation was 2.3 μmol s
−1 g
−1 under 6.0 MPa at 523 K, being much higher than that over Au/ZrO
2 or ZrO
2. It was found that the alloy was oxidized into metallic gold and ZrO
2 under the reaction conditions.
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Tsutomu Osawa
1985 Volume 14 Issue 11 Pages
1609-1612
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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2-Octanone was hydrogenated over tartaric acid-NaBr-modified Raney nickel in the presence of pivalic acid at various temperatures. The hydrogenation at 50–60 °C gave the best result with regard to the optical yield. Almost 80% of the optical yields were attained in the hydrogenations of various 2-alkanones.
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Shin-ichi Hirano, Ko-ichi Kikuta
1985 Volume 14 Issue 11 Pages
1613-1616
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Hydrothermal growth of calcite single crystal was studied by using NaCl and KCl solutions which have been considered to be naturally existing as the saline mineralizer. Both of NaCl and KCl solutions were found to be the effective mineralizer for the growth of calcite crystal of optical grade. Optically clear single crystals of calcite could be grown from each chloride solution.
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Yuji Orihashi, Norihisa Kobayashi, Eishun Tsuchida, Hiro Matsuda, Hach ...
1985 Volume 14 Issue 11 Pages
1617-1620
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Potassium dicyanocobalt(III)phthalocyanine was electrolyzed to form large single crystals (>4 mm) of cyanocobalt(III)phthalocyanine with interplaner distance of 3.45 Å which showed conductivity of 5.7×10
1 S/cm without doping.
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Takahiro Tezuka, Setsuo Ando
1985 Volume 14 Issue 11 Pages
1621-1624
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Arenediazonium ions are generated from molecular complexes of α-azohydroperoxides with solvents (crystals or oils) under anhydrous conditions, when the solvated molecules are removed from these complexes.
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Toshikazu Hirao, Shinichiro Nagata, Toshio Agawa
1985 Volume 14 Issue 11 Pages
1625-1628
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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1,1-Dibromo-2-chlorocyclopropanes underwent the Ni (CO)
4-induced ring-opening carbonylation reaction with alcohol or amine giving the β, γ,-unsaturated carboxylic acid and dicarboxylic acid derivatives. Use of
N,
N-dimethyltrimethylsilylamine as an initial nucleophile in the presence of benzaldehyde led to a dienecarboxamide presumably via codensation of the nickel enolate intermediate.
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Tooru Fujiwara, Hiroyuki Yanagihara, Takafumi Yamada, Koichi Suzuki, T ...
1985 Volume 14 Issue 11 Pages
1629-1632
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The coupling reaction of (
E)-β-phenylthio β,γ-unsaturated alcohols with Grignard reagents using tetrachlorosilane as a condensation reagent gave (
Z)-S
N2′ products exclusively, whereas the reaction of the corresponding
Z-isomers proceeded by S
N2 attack with retention of double bond geometry.
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Sabyasachi Sarkar, Ishaq B Mohammad, Periyasamy Subramanian
1985 Volume 14 Issue 11 Pages
1633-1634
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Stereospecific synthesis of
cis-dichloro
trans-bis(pyridine)-
cis-dinitrosyltungsten(O) and the related 3-picoline and 4-picoline derivatives have been achieved by a single pot reductive nitrosylation of sodium tungstate(VI) by hydroxylamine in the presence of excess of pyridine (or picolines) as solvent.
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Goro Hihara, Hiroshi Miyamae, Miharu Nagata
1985 Volume 14 Issue 11 Pages
1635-1638
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A method has been developed for the identification of all the insoluble complexes formed in a solid-liquid reaction of an insoluble Lewis acid with a soluble Lewis base by extending the method of continuous variation to such a heterogeneous system. It was applied to the reaction of PbI
2 with pyridine(py) in ethanol solution. Two insoluble complexes, PbI
2·py and PbI
2·2py, were identified.
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Shuki Araki, Yasuo Butsugan
1985 Volume 14 Issue 11 Pages
1639-1642
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Four kinds of mesoionic thiocarbonyl ylides were synthesized by the treatment of mesoionic thiolate with bromine followed by the reaction with conjugate base of active methylene compounds. The structures were discussed based on the spectroscopic properties.
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Hiroyuki Yamashita, Teruaki Mukaiyama
1985 Volume 14 Issue 11 Pages
1643-1646
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Optically active
trans-2-(arylthio or alkylthio)cyclohexanols are prepared by the asymmetric ring-opening of cyclohexene oxide with various arylthiols or alkylthiols in 52–85% ee by the use of zinc
Lq-tartrate as a heterogeneous chiral Lewis acid catalyst.
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Takashi Sumiyoshi, Meiseki Katayama, Wolfram Schnabel
1985 Volume 14 Issue 11 Pages
1647-1650
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Acylphosphine oxides were tested as a new class of singlet indicators and the diphenyl phosphonyl radical was detected as a result of singlet energy transfer from benzene excimers to 2,4,6-trimethylbenzoyldiphenylphosphine oxide.
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SYNTHESIS OF NOVEL CROWN ETHER INCORPORATING THE (−)-(5S,6R,13S,14R)-5,6,13,14-TETRAHYDRO-5,13-METHANOCYCLOOCTA[1,2-a:5,6-a′]DINAPHTHALENE-6,14-DIOL SUBUNIT AS THE C2-SYMMETRIC CHIRAL CENTER
Koichiro Naemura, Rinko Fukunaga
1985 Volume 14 Issue 11 Pages
1651-1654
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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(−)-5,6,13,14-Tetrahydro-5,13-methanocycloocta[1,2-
a:5,6-
a′]dinaphthalene-6,14-diol was synthesized and its absolute configuration was established. Optically active crown ether was prepared by using this glycol as a source of chirality and its chiral recognition property was examined.
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Toshio Nagase, Takayuki Kawashima, Naoki Inamoto
1985 Volume 14 Issue 11 Pages
1655-1658
Published: November 05, 1985
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The title compounds were prepared highly diastereoselectively by treatment of 2-alkenylphosphonates and phosphinates with m-chloroperbenzoic acid or MoO
5-HMPA complex in good yields.
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Tai Hasegawa, Shin-ichi Nishikiori, Toschitake Iwamoto
1985 Volume 14 Issue 11 Pages
1659-1662
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Under substantially the same preparation conditions applied to the
m- and the
p-isomers of toluidine with the aqueous solution containing cadmium(II) chloride, potassium tetracyanonickelate(II), 1,6-diaminohexane, and some additives, the
m-isomer gives an inclusion compound 1,6-diaminohexanecadmium(II) tetracyanonickelate(II)-
m-toluidine(1/1) as well as the
o-isomer does, whereas the
p-isomer forms a metal complex bis (
p-toluidine) -1,6-diaminohexanecadmium(II) tetracyanonickelate(II).
View full abstract
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Kazuhiko Ishihara, Kiyohide Matsui, Hideyuki Fujii, Hiroyuki Nishide, ...
1985 Volume 14 Issue 11 Pages
1663-1666
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The separation of xylene isomers was carried out by pervaporation through a polymer membrane having a dinitrophenyl group. The polymer membrane was effective for selective permeation of m-xylene from the mixture of xylene isomers. This selectivity can be attributed to the difference in the charge-transfer complexing ability between xylene isomers and the dinitrophenyl group.
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Jun Onoe, Tomoji Kawai, Shichio Kawai
1985 Volume 14 Issue 11 Pages
1667-1670
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Peptides of diglycine to pentaglycine are formed from glycine under irradiation in the presence of particulate semiconductor photocatalysts such as TiO
2, CdS, CdSe, MOS
2, In
2O
3, and GaP, with and without Pt deposition. Platinization of the semiconductors efficiently enhanced the yield of the peptides.
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Hitomi Suzuki, Hajime Manabe, Masahiko Inouye
1985 Volume 14 Issue 11 Pages
1671-1674
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Sodium telluride, prepared by heating tellurium with Rongalite in aqueous sodium hydroxide, easily reduces aromatic nitro compounds to the corresponding amines in good yields. The reduction can be carried out using a catalytic amount of tellurium, since sodium telluride is readily regenerated in the presence of excess Rongalite.
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Kazuhiro Maruyama, Hidetoshi Iwamoto, Osamu Soga, Akio Takuwa, Atsuhir ...
1985 Volume 14 Issue 11 Pages
1675-1678
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A number of 3-alkoxy-5-methyl-2-(α-methylcinnamoyl)-1,4-benzoquinones have been prepared by the reaction of 5-methyl-2-(α-methylcinnamoyl)-1,4-benzoquinone with alcohols. Irradiation of 3-methoxy-, 3-ethoxy-, and 3-isopropoxy-5-methyl-2-(α-methylcinnamoyl)-1,4-benzoquinones in solution gave 5
H-pyrano[4,3,2-
de][1,3]benzodioxins.
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Toshiyuki Itoh, Atsuya Yoshinaka, Toshio Sato, Tamotsu Fujisawa
1985 Volume 14 Issue 11 Pages
1679-1680
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Facile stereoselective syntheses of 2,3,6-trideoxysugars,
L-rhodinose and
D-amicetose, were achieved from highly diastereoselective nucleophilic addition of methyl group to (S)-2-benzyloxy-5-hexenal, which was easily obtained from optically pure (S)-glycidyl sulfide.
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Kiyoshi Matsumoto
1985 Volume 14 Issue 11 Pages
1681-1682
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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[2.2]Paracyclophane which is totally inert to maleic anhydride and maleimides even at 180 °C and 1 bar does undergo Diels–Alder reactions with these dienophiles in kirobar region around 70 °C giving the 1:2 adducts in moderate yields.
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Hamao Watanabe, Koichi Yoshizumi, Tsutomu Muraoka, Motohiko Kato, Yoic ...
1985 Volume 14 Issue 11 Pages
1683-1686
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The anodic peak potentials for a series of cyclopolysilanes, [R
1R
2Si]
n (n=3–7), lowered with decreasing ring size and were found to be parallel to the lowest transition energies determined by the UV absorptions. In the anodic oxidation these cyclopolysilanes undergo the initial one electron transfer reaction to give a cation radical which leads to the formation of an acyclic α,ω-radical cation followed by the second electron transfer to give the corresponding di-cation.
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Haruki Niwa, Yoshifumi Yoshida, Takashi Hasegawa, Kiyoyuki Yamada
1985 Volume 14 Issue 11 Pages
1687-1688
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The first total synthesis of (±)-(
Z)-9-(bromomethylene)-1,5,5-trimethylspiro[5.5]undeca-1,7-dien-3-one, a chamigrane sesquiterpene having a novel bromomethylene group is described.
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Keiji Maruoka, Hiromi Sano, Yoshimi Fukutani, Hisashi Yamamoto
1985 Volume 14 Issue 11 Pages
1689-1692
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A mild procedure for the trimethylaluminum-induced addition of polyhalomethane to olefins has been described.
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Norihiko Yoneda, Tsuyoshi Fukuhara, Seiji Nagata, Akira Suzuki
1985 Volume 14 Issue 11 Pages
1693-1694
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Cu
2-O-HF-Organic base (tetrahydrofuran or Et
2-O) solutions were used successively as a highly reactive halogen-exchange fluorination reagent for the cyclo or tertiary alkyl halides without carbon skeletal rearrangement under the mild conditions.
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Yoshio Hori, Katsuhei Kikuchi, Shin Suzuki
1985 Volume 14 Issue 11 Pages
1695-1698
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The total analysis of gaseous and soluble products was carried out in the electrochemical reduction of CO
2 (current density 5 mA cm
−2) on various electrode metals. HCOO
− was predominantly produced at Cd, In, Sn, and Pb cathodes. Ag and Au principally gave CO. CH
4 was formed in an appreciable amount at Cu cathode.
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Tadashi Igarashi, Takashi Ito
1985 Volume 14 Issue 11 Pages
1699-1702
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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MCp
2H
2 [M = W (
1a), Mo (
1b); Cp = η-C
5H
5] was protonated with TsOH to give [ MCp
2H
3]
+TsO
− [M = W (
2a), Mo (
2b)], which was isolated and characterized spectroscopically.
2a and
2b reduced acetone to
i-PrOH indicating their more hydridic nature as compared to
1a and
1b. Complex
2b reacted with Lewis bases and allyl alcohols to give [MoCp
2H(L)]
+TsO
− (L = CO, PPh
3, MeOH) and cyclic γ-hydroxyalkyl complexes, respectively.
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Manabu Igawa, Tsunehisa Anzai, Manabu Seno
1985 Volume 14 Issue 11 Pages
1703-1704
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Nonionic surfactants were enriched by the permeation through a fluorocarbon polymer membrane under a pressure gradient when the concentration of the surfactants were low. The enrichment factor increased with a decrease in the operating pressure and an increase in the lipophilicity of the surfactant.
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Toshikazu Takata, Liren Huang, Wataru Ando
1985 Volume 14 Issue 11 Pages
1705-1708
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Stable, optically active α-hydroxy sulfides are prepared in high yields by reduction of corresponding α-hydroperoxy sulfides obtained by stereospecific photohydroperoxidation of optically active thiazolidine derivatives. A few reactions as well as spectroscopic data characterize the alcohol structure.
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Kunio Mochida, Masanobu Wakasa, Shin-ichi Ishizaka, Masahiro Kotani, Y ...
1985 Volume 14 Issue 11 Pages
1709-1710
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Photochemical primary processes of aryl-substituted germyl anions were studied at room temperature. The germyl radicals generated were observed directly by laser-photolysis.
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Yukito Murakami, Yoshio Hisaeda, Toshiaki Ozaki, Teruhisa Ohno
1985 Volume 14 Issue 11 Pages
1711-1714
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Aerobic photolysis of hydrophobic vitamin B
12 derivatives having alkyl ligands was enhanced as the solvent polarity was reduced and by the coordination of a proximal base placed within the hydro-phobic complexes. The quantum yield remained constant regardless of the irradiation wavelength.
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Michio Obayashi, Manfred Schlosser
1985 Volume 14 Issue 11 Pages
1715-1718
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A straightforward sequence of reactions allows the conversion of D(+)-Mannose and D(+)-ribono-1,4-lactone into “
erythro”-(2
S,3
R)-and “
threo”-(2
S,3
S)-sphingosine, respectively.
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Koichi Mikami, Kazuya Kawamoto, Takeshi Nakai
1985 Volume 14 Issue 11 Pages
1719-1722
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A new entry to (22
R)-hydroxy-23-acetylenic steroid side chains is described which relies on the concept of chirality transfer via the unprecedented β-face [2,3]Wittig process. The key feature is that the C-16β chirality is completely transmitted to the two new chiral centers at C-20 and C-22 with a high erythro-selectivity.
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Noboru Sayo, Ei-ichi Nakai, Takeshi Nakai
1985 Volume 14 Issue 11 Pages
1723-1724
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A new synthesis of (+)-blastmycinone is described which relies on the combination of the asymmetric [2,3]Wittig rearrangement with the selective reduction of an α-hydroxy ketone with zinc borohydride.
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Ei-ichi Nakai, Ei-ichiro Kitahara, Noboru Sayo, Yoshio Ueno, Takeshi N ...
1985 Volume 14 Issue 11 Pages
1725-1728
Published: November 05, 1985
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Three [2,3]Wittig-based approaches for stereocontrol over three contiguous chiral centers are described within the synthesis of the title lactone. In these methods, the erythro-selective [2,3]Wittig variants are combined with one of the stereoselective processes: the Michael addition, the radical cyclization, and the hydroboration.
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Koichi Mikami, Osamu Takahashi, Takashi Kasuga, Takeshi Nakai
1985 Volume 14 Issue 11 Pages
1729-1732
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The title rearrangement of the chiral (
E-crotyloxy)acetamides derived from (
S)-prolinol has been shown to provide a modest level of asymmetric induction (52–60%) along with a high erythro-selectivity (95–98%). The influence of the metal centers (Li, K, and Zr) and the ligating substituents on the prolinol part has been discussed.
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Yukio Takahashi, Norihiko Yoneda, Hiroshi Nagai
1985 Volume 14 Issue 11 Pages
1733-1734
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Using 97% H
2SO
4 supersaturated with carbon monoxide, bis(4-halophenyl)methanols, 1,1-bis (4-halophenyl) ethanols and related alcohols were transformed to the carboxylic acids in 60–95% yields.
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Naoki Takeyama, Hiroshi Sakaguchi, Yuichi Hashiguchi, Masatsugu Shimom ...
1985 Volume 14 Issue 11 Pages
1735-1738
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Double-chain ammonium amphiphile with carbazole moiety affords spontaneous assemblage, bilayer vesicles, in aqueous solution. Laser-excitation of aligned carbazole units in the bilayer liberates electron, which lead to long-living charge-separated states (ca. 50 μs-5 ms) in the presence of appropriate electron acceptors.
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Katsumi Yonemoto, Yasufumi Nakai, Gaku Yamamoto, Michinori Oki
1985 Volume 14 Issue 11 Pages
1739-1742
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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While the ap form of the title compound, on being heated with thionyl chloride, afforded 3-oxo-1,1,8,11-tetramethyl-2,3,7,11b-tetrahydro-7,11b-o-benzenobenzo[j]phenalene and 3-chloro-1,1,8,11-tetramethyl-7,11b-dihydro-7,11b-o-benzenobenzo[j]phenalene, the sc-isomer did, in addition to the above products, those derived from the ipso attack of the intervening acyl cation on the 1-position, the methyl group at the position undergoing the 1,2-shift.
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Yasutake Teraoka, Hua-Min Zhang, Shoichi Furukawa, Noboru Yamazoe
1985 Volume 14 Issue 11 Pages
1743-1746
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The rate of oxygen permeation through La
1−xSr
xCo
1−yFe
yO
3−δ was found to increase with an increase in Sr or Co content, showing that the permeability was mainly controlled by the amount of oxygen vacancies. The results obtained indicate that mixed conductive perovskite-type oxides are promising materials for oxygen permeation at elevated temperatures.
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Ian P. Appleyard, Robin K. Harris, Frank R. Fitch
1985 Volume 14 Issue 11 Pages
1747-1750
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Multinuclear MAS NMR has been used to study, for the first time, a member of a new family of molecular sieves, the silicoaluminophosphates, SAPO-5. The silicon-29 NMR spectra are consistent with tetrahedral (framework) silicon and provide information concerning the method of substitution of the silicon atoms into the aluminophosphate lattice.
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Tamotsu Fujisawa, Eiji Kojima, Toshiyuki Itoh, Toshio Sato
1985 Volume 14 Issue 11 Pages
1751-1754
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Asymmetric reduction of a-ketothioacetals was achieved by fermenting baker’s yeast to afford optically pure α-hydroxythioacetals which play as equivalents of valuable α-hydroxy aldehydes. The utility of the present method was demonstrated in the stereo-selective syntheses of (4S,5S)- and (4S,5R)-4,5-dihydroxydecanoic acid γ-lactones from (S)-(−)-1-(1,3-dithian-2-yl)-1,4-butanediol.
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Mikio Tanaka, Eiichi Miki
1985 Volume 14 Issue 11 Pages
1755-1758
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The relative intensities of molecular ions and their isotopic peaks generated from the titled complexes were measured accurately by field desorption mass spectrometry. Secondary ion mass spectrometry/metastable ion spectra obtained by the linked scan technique gave useful information about the successive ligand-loss processes.
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Yoshiro Yamashita, Takanori Suzuki, Gunzi Saito, Toshio Mukai
1985 Volume 14 Issue 11 Pages
1759-1762
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Charge–transfer complexes of bis-1,2,5-thiadiazolo-tetracyano–quinodimethan (BTDA-TCNQ) with various donors were prepared. The 1:1 complex of dimethyldihydrophenazine with BTDA-TCNQ was found to be highly conductive. Factors governing the conductivities were investigated.
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Christian M. Braun, Akira Fujishima, Kenichi Honda
1985 Volume 14 Issue 11 Pages
1763-1766
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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The charging current of the space charge layer of a CdS(0001)/aq. KCl junction was measured by Time Domain Spectroscopy in the short time region. The relaxation spectrum consists of a multitude of exponentials, which is interpreted by a heterogeneous semiconductor surface. This explains the dependence of conventional Mott Schottky plots on frequency and resulting errors in the determination of flatband potential and donor density.
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Juro Ojima, Yasuhiro Yagi, Tetsuya Nakada, Sumio Manaka, Emiko Ejiri, ...
1985 Volume 14 Issue 11 Pages
1767-1770
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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14-Ethoxy-2,5,10-trimethyl-, 14-ethoxy-2-ethyl-5,10-dimethyl-6,8-bisdehydroaza[14]annulene, 2-ethoxy-3,6,11-trimethyl-, 2-ethoxy-6,11,16-trimethyl- 7,9-bisdehydroaza [16] annulene, and 18-ethoxy-2,7,12-trimethyl-8,10-bisdehydroaza[18]annulene were prepared. It was found that the molecular skeletons of these α- or β-methylated azaannulenes are less planar than those of α- or β-methyl unsubstituted ones.
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Naoki Inamoto, Shozo Masuda
1985 Volume 14 Issue 11 Pages
1771-1774
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Nonlinearity of data for σ and π-electron-withdrawing groups (EWG) with Δι values in σ
− application systems was improved by consideration of difference of electronegativities between atoms A and B in substituent –A=B. This idea was also applied to π-donating effect of EWG in very electron-deficient system such as XCH
2+.
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Hajime Izawa, Fumio Yasuda, Shinichi Kikkawa, Mitsue Koizumi
1985 Volume 14 Issue 11 Pages
1775-1778
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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A lithium ion titration curve of H
2Ti
3O
7 was measured with pH value of solution in equilibrium with the exchanger. There might be two different exchangeable sites in the interlayer region of H
2Ti
3O
7. A new metastable phase, Li
2Ti
6O
13, was obtained by a dehydration of the Li
+-exchanged product in the temperature range of 300–500 °C.
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Hitomi Suzuki, Kazue Watanabe, QUI Yi
1985 Volume 14 Issue 11 Pages
1779-1780
Published: November 05, 1985
Released on J-STAGE: March 27, 2006
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Copper(I)-catalyzed arylation of dialkyl cyanomethanephosphonate anions in hot hexamethylphosphoric triamide affords α-arylalkanenitriles in moderate to good yields.
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