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Volume 42, Issue 7
Displaying 1-35 of 35 articles from this issue
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Highlight Review
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Wei Zhang2013 Volume 42 Issue 7 Pages 676-681
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: June 12, 2013
JOURNAL FREE ACCESS1,3-Dipolar cycloaddition reaction-based diversity-oriented synthesis developed from our research lab is highlighted. The initial [3 + 2] cycloaddition products are subjected to postcondensation modifications to afford heterocyclic scaffolds with substitutional, skeletal, and stereochemical variations. Multicomponent reactions and fluorous linker-facilitated separation are integrated to increase the efficiency of compound library synthesis.View full abstract
Letter
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Luhui Wang, Hui Liu, Ying Chen, Renkun Zhang, Shuqing Yang2013 Volume 42 Issue 7 Pages 682-683
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESSA K-promoted Co–CeO2 catalyst prepared through the coprecipitation–impregnation method was shown to give a higher activity for the reverse water–gas shift reaction but with lower formation of the side product CH4. TPR results suggested that the addition of small amounts of K (1 wt %) improved the cobalt oxide reducibility through an electron-donation effect.View full abstract -
Naoki Nomura, Akinori Takasu2013 Volume 42 Issue 7 Pages 684-686
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 15, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialScandium perfluoroalkanesulfonates and perfluoroalkanesulfonimides act as catalysts for the polyesterification of dicarboxylic acids by diols. We performed the model esterification between ethanol and acetic acid to measure the extent of the conversions and equilibrium constants for each scandium catalyst. According to the Arrhenius and Eyring constants, the activity of each scandium catalyst depends on its fluorine content and type of ligand, as reflected in the activation entropy values.View full abstract -
Ali Samarat, Marwa Yahyaoui, Iyadh Aouani, Soufiane Touil2013 Volume 42 Issue 7 Pages 687-688
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESSSimple and efficient methodologies have been developed for the synthesis of novel hydroxy- and aminobisphosphonate derivatives, through the reduction and reductive amination of γ,γ′-diphosphonyl ketones.View full abstract -
Lihua Zhang, Hui Li, Le Li, Jian Deng, Weiyi Deng, Yubao Zhao2013 Volume 42 Issue 7 Pages 689-690
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESSAnatase and rutile nanostructured TiO2 semiconductor catalysts were prepared by wet-chemical methods and used for the photoreduction of uranyl ions under UV radiation. It was found that there is an obvious difference between their catalytic performances: rutile TiO2 nanorods give the highest activity per unit surface area, being over twice as active as P25 and 10 times more active than the anatase counterparts.View full abstract -
Mitsuru Kitamura, Kento Murakami, Yuichiro Shiratake, Tatsuo Okauchi2013 Volume 42 Issue 7 Pages 691-693
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 15, 2013JOURNAL RESTRICTED ACCESSα-Arylcarboxylic acid amides were synthesized by reacting silyl enol ethers of aryl ketones and 2-azido-1,3-dimethylimidazolinium hexafluorophosphate (ADMP, 1). Silyl enol ethers react with ADMP 1 to give N-(α-arylacyl)guanidines via the migration of aryl groups in enol ethers. The products were transformed to the corresponding α-aryl acetamides by treating with LiAlH4.View full abstract -
Kento Kimura, Takeo Oku, Tsuyoshi Akiyama2013 Volume 42 Issue 7 Pages 694-696
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
JOURNAL RESTRICTED ACCESS
Supplementary materialC60 fullerene and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (TAPP) composite micropowder was prepared by simply mixing C60 and TAPP in an organic solvent under ambient conditions. The composite micropowder contributed to photoelectric conversion, which was confirmed by a semi-wet-type photovoltaic application.View full abstract -
Sicheng Zhang, Yanqing Wang, Zhiyi Song, Kiyohiko Nakajima, Tamotsu Ta ...2013 Volume 42 Issue 7 Pages 697-699
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESSDimerization of 2-hydroxyanthracene was investigated with 5 mol % of various catalysts that are efficient catalysts for the dimerization of 2-naphthol. Catalysts such as Cu(OH)Cl·TMEDA, [Mn(acac)3], and [Mn(acac)2] did not give satisfactory results. However, MnI2, which gave only trace amounts of dimerization product of 2-naphthol under the same conditions, afforded 2,2′-dihydroxy-1,1′-bianthracene in 74% yield.View full abstract -
Shinji Kanegawa, Soonchul Kang, Osamu Sato2013 Volume 42 Issue 7 Pages 700-702
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 29, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialIn this study, a new tetrathiafulvalene-functionalized phenanthroline ligand (TTF-phen) and a mononuclear cobalt(II) complex with a redox active 3,6-di-tert-butylsemiquinonato (3,6-dtsq) ligand was synthesized. Magnetic measurements and IR spectroscopy suggested that the Co complex [Co(3,6-dtsq)2(TTF-phen)] exhibited thermally induced valence tautomerism in the temperature range 130–400 K. This complex is the first example of a valence tautomeric complex with a TTF-functionalized ligand.View full abstract -
Takanori Suzuki, Hitomi Tamaoki, Ryo Katoono, Kenshu Fujiwara, Junji I ...2013 Volume 42 Issue 7 Pages 703-705
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialOctafluorobiphenyl-2,2′-diylbis(diarylmethylium) dye 2a2+ prepared from 1,2-dibromotetrafluorobenzene is interconvertible with colorless dihydrophenanthrene donor 1a. By the SNAr reactions of 1a with acetylides, π-extended analogues 1b and 1c were obtained. Their electrochromic behavior is accompanied by a drastic absorption change not only in the visible but also UV region, because the torsion angle of the biaryl unit is modified upon redox reactions.View full abstract -
Takanori Suzuki, Takuma Kuroda, Hitomi Tamaoki, Sho Higasa, Ryo Katoon ...2013 Volume 42 Issue 7 Pages 706-708
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialUpon oxidation of the title heterocycles with dimethylamino groups, elemental sulfur is extruded to form dicationic dyes, which regenerate the heterocycles by the reaction with Na2S. The electrolysis of the heterocycles induces a drastic change in UV–vis spectrum exhibiting several isosbestic points. The bay-region substituents enhance configurational stability, so the optically pure heterocycle can be obtained in terms of helicity of one-handedness, and its chromism is accompanied by a large chiroptical response as detected by CD spectroscopy.View full abstract -
Fang Fang, Kong-Lin Wu, Xiang-Zi Li, Chao Dong, Li Liu, Xian-Wen Wei2013 Volume 42 Issue 7 Pages 709-710
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialIn this letter, a reduced graphene oxide/CuI (rGO/CuI) nanocomposite was obatined by a facile chemical reduction route for the first time. The different reaction conditions that affected the catalytic properties of rGO/CuI nanocomposite were investigated. The catalytic activity of rGO/CuI nanocomposite for the N-phenylation of indole was much better than that of rGO and CuI.View full abstract
Editor’s Choice
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Tsuneomi Kawasaki, Mizuki Uchida, Yoshiyasu Kaimori, Taisuke Sasagawa, ...2013 Volume 42 Issue 7 Pages 711-713
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL OPEN ACCESS5-Pyrimidyl alkanol with an enantiomeric excess of up to >99.5% was formed using chiral crystals of achiral tris(2-hydroxyethyl) 1,3,5-benzenetricarboxylate as a chiral initiator. In the enantioselective addition of diisopropylzinc to pyrimidine-5-carbaldehyde, the helicity of the molecular arrangement of achiral tricarboxylate in the crystalline state could be successfully used as a source of chirality to afford enantioenriched alkanol in conjunction with asymmetric autocatalysis with amplification of enantiomeric excess.View full abstract
Letter
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Jiu-Ying Feng, Li-Jun Gao, Bing Chen, Xiao-Jun Wu, Qiao-Li Luo, Cai-Ya ...2013 Volume 42 Issue 7 Pages 714-716
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialPartly crosslinked poly(propylene carbonate) (pc-PPC) is directly prepared by terpolymerization of CO2 and propylene oxide using multifunctional triglycidyl isocyanurate (TGIC). It is thermoplastic and exhibits significantly enhanced properties with the 5% weight-loss degradation temperature of 271 °C and the tensile strength of 37.4 MPa, along with good toughness with elongation at break of 446%. These findings may develop a facile and effective way to ensure that PPC can be melt-processed without decomposition and used as a structural material.View full abstract -
Kazuhiro Nakabayashi, Hideharu Mori2013 Volume 42 Issue 7 Pages 717-718
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL OPEN ACCESS
Supplementary materialA naphthalene bisimide (NBI)-based donor–acceptor (D–A) alternating low-band-gap polymer, which is an electron-transporting material, was successfully synthesized by palladium-catalyzed direct arylation. The obtained polymer had a relatively high molecular weight (Mn = 10000, Mw/Mn = 1.63), and 1H NMR analysis demonstrated that there were no structural defects.View full abstract -
Keita Nakai, Hinari Nakagawa, Keita Kuroda, Syuji Fujii, Yoshinobu Nak ...2013 Volume 42 Issue 7 Pages 719-721
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL OPEN ACCESS
Supplementary materialNear-infrared (NIR)-responsive liquid marbles were prepared using carbon nanotube (CNT) and fullerene (C60) powders. The liquid marbles were transferred to the surface of bulk water. The liquid marbles immediately disintegrated upon NIR irradiation due to conversion of NIR energy to heat. The NIR-responsive liquid marbles can be used to induce chemical reactions, if a liquid marble containing one reactant was floated on bulk water containing another reactant. Upon NIR irradiation, the liquid marble burst and the two reactants came in contact, triggering the reaction.View full abstract -
Tadikonda Ramu, Sarakula Prasanthi, Nakka Mangarao, Gajula Mahaboob Ba ...2013 Volume 42 Issue 7 Pages 722-724
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
JOURNAL RESTRICTED ACCESS
Supplementary materialA convenient one-pot synthesis of 1,2,4-oxadiazoles is described. The condensation of carboxylic acids and amidoximes in the presence of 2-chloro-4,6-dimethoxy-1,3,5-triazine (CDMT) and N-methylmorpholine (NMM) has been employed to synthesize a variety of 3,5-disubstituted 1,2,4-oxadiazoles in good to excellent yields. The methodology has been applied for the synthesis of a metabotropic glutamate subtype 5 (mGlu5) receptor antagonist.View full abstract -
Kei Kurotobi, Kyosuke Kawamoto, Yuuki Toude, Yamato Fujimori, Yuriko K ...2013 Volume 42 Issue 7 Pages 725-726
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
JOURNAL RESTRICTED ACCESS
Supplementary materialCarboxyphenylethynyl-substituted diazaporphyrin has been synthesized to assess the utility of diazaporphyrins in dye-sensitized solar cells for the first time. The diazaporphyrin-sensitized TiO2 cell exhibited photocurrent generation in the visible region of 400–700 nm together with a power conversion efficiency of 0.08%.View full abstract -
The Synthesis of a Heptacationic Porphyrin Trimer Connected with a Bipyridyl Linker on Axial LigandsTsutomu Shiragami, Takahiro Mori, Jin Matsumoto, Masahide Yasuda2013 Volume 42 Issue 7 Pages 727-728
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialTetracationic porphyrin dimers and heptacationic trimers were prepared by the connection of a bipyridyl linker with axial ligands of antimony(V) porphyrin and/or phosphorus(V) porphyrin complexes. The measurement of cyclic voltammetry and absorption spectra showed that the electrochemically reduced species was a long-lived species of antimony(IV) porphyrin chromophore.View full abstract -
Tomoo Mizugaki, Racha Arundhathi, Takato Mitsudome, Koichiro Jitsukawa ...2013 Volume 42 Issue 7 Pages 729-731
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialThe copper nanoparticle catalyst prepared from Cu–Al hydrotalcite gives an excellent yield of 1,2-propanediol in the hydrogenolysis of glycerol. The copper nanoparticle catalyst also exhibits high durability against sintering during the hydrogenolysis reaction and can be reused without appreciable loss of activity or selectivity.View full abstract -
Kazuya Matsumoto, Daisuke Kan, Noriya Ichikawa, Saburo Hosokawa, Hiros ...2013 Volume 42 Issue 7 Pages 732-734
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESSOxygen incorporation into infinite-layer structure compounds SrFeO2 and CaFeO2 has been investigated by thermogravimetry analysis. Oxygen begins to be incorporated into SrFeO2 at low temperatures like 100 °C, and the incorporation-reaction rate in SrFeO2 is much larger than that in CaFeO2. A larger structural framework has advantages in regard to the low activation energy for the oxygen incorporation reaction.View full abstract -
Shuo Zhai, Yukitaka Manako, Shin-ichi Yusa, Kenichi Nakashima2013 Volume 42 Issue 7 Pages 735-737
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialHollow calcium tungstate (CaWO4) nanospheres with well-controlled shape and size have been successfully synthesized for the first time by templating micelles of poly(styrene-b-acrylic acid-b-ethylene oxide) (PS-b-PAA-b-PEO). This polymer forms a micelle with a PS core, a PAA shell, and a PEO corona in aqueous solutions. Calcium chloride (CaCl2) and sodium tungstate (Na2WO4) were used as precursors of CaWO4. In the synthesis, the PS core acts as a template for cavities of the hollow particles, the PAA shell is beneficial for arresting calcium ions for further mineralizing, and the PEO corona stabilizes the CaWO4-polymer nanocomposite to prevent secondary aggregate formation. The hollow CaWO4 nanoparticles have a spherical shape with an outer diameter narrowly distributed at 22.7 ± 1.0 nm and a shell thickness at 6.7 ± 0.4 nm.View full abstract -
Kiyoshi Kanie, Takafumi Sasaki, Masafumi Nakaya, Atsushi Muramatsu2013 Volume 42 Issue 7 Pages 738-740
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL OPEN ACCESS
Supplementary materialQuaternary ammonium hydroxides were first applied for the solvothermal synthesis of monodispersed ITO nanoparticles controlled in cubic morphology. The formation of a gel-like intermediate was the decisive factor for the precise control of size and shape. Their blue-colored compacts exhibited low resistivity as a transparent conductive oxide.View full abstract -
Yoshikazu Kumashiro, Kazuyoshi Itoga, Yohei Kinoshita, Masayuki Yamato ...2013 Volume 42 Issue 7 Pages 741-743
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialMicropatterns on organic materials were fabricated using various positive photoresist solutions for clearly patterning the culture of cells on organic materials. The surface erosion of organic materials with positive photoresist solvents was quantitatively characterized, and a suitable solute/solvent combination was found. Clear cell patterns were observed on a surface when using the newly developed photoresist, mainly because the developed photoresist hardly eroded on the surface of organic materials.View full abstract -
Hideki Kato, Arisa Takeda, Makoto Kobayashi, Masato Kakihana2013 Volume 42 Issue 7 Pages 744-746
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 29, 2013JOURNAL RESTRICTED ACCESSIt has been found that cocatalyst-loaded LaTa7O19 with a band gap of 4.1 eV functions as a photocatalyst for water splitting under ultraviolet irradiation. The activity of Rh0.5Cr1.5O3-loaded LaTa7O19 prepared by a polymerizable complex method exhibited double of that prepared by a solid-state reaction. An apparent quantum yield of Rh0.5Cr1.5O3-loaded LaTa7O19 was determined to be 9.0% at 254 nm.View full abstract -
Hisatoyo Morinaga, Yoshihito Nishioka, Mao Hatayama, Hirotoshi Nakabay ...2013 Volume 42 Issue 7 Pages 747-749
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
JOURNAL RESTRICTED ACCESSA ring-opening polymerization of oxetane was performed with a novel solid-acid catalyst based on heteropolyacid salt ((NH4)3PW12O40/SiO2), by which the corresponding polyether was successfully obtained in high yield.View full abstract
Editor’s Choice
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Leiming Lang, Zheng Xu2013 Volume 42 Issue 7 Pages 750-752
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: June 01, 2013JOURNAL OPEN ACCESS
Supplementary materialWe present a facile non-coaxial electrospinning technique to synthesize the porous α-Fe2O3 microtube and tube-in-tube. The possible formation mechanism of different tubular-structure α-Fe2O3 has been proposed. Among the experimental parameters, the heating rate during calcination is a key factor for realizing different α-Fe2O3 structures. The slower heating rate is of benefit to form α-Fe2O3 fiber with tube-in-tube structure. This method is versatile and can be extended to construct other hollow and multitubular metal oxide nanofibers, such as ZrO2, SiO2, SnO2, and In2O3 tube-in-tubes.View full abstract -
Chihiro Tsukano, Masataka Okuno, Yoshiji Takemoto2013 Volume 42 Issue 7 Pages 753-755
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL OPEN ACCESS
Supplementary materialThe synthesis of spirooxindoles fused with cyclopropanes from carbamoyl chlorides, via methine C(sp3)–H activation, is reported. The regioselectivity of C–H activation in the presence of competitive C–H bonds at the appropriate position was investigated under the optimized conditions.View full abstract
Letter
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Norihito Maru, Noriko Chikaraishi, Keisuke Yokota, Yoshinori Kawazoe, ...2013 Volume 42 Issue 7 Pages 756-757
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
JOURNAL RESTRICTED ACCESSA new diterpenoid, jolkinolide F (1), was isolated from roots of Euphorbia jolkinii. The planar structure of 1 was elucidated by spectroscopic analysis, and its stereochemistry was determined by NOESY spectroscopic data and X-ray data analysis. 1 showed cytotoxicity against mammalian cells.View full abstract -
So-Hee Lee, Hyun Sik Kim, Kwang-soon Ahn, Soon Hyung Kang2013 Volume 42 Issue 7 Pages 758-760
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 21, 2013JOURNAL RESTRICTED ACCESSBamboo-type TiO2 nanotube (BT-TONT) arrays were developed by biasing the facile alternating voltage (AV, 80–20 V) and compared to smooth-walled TiO2 nanotube (SW-TONT) arrays grown by forcing a constant voltage (CV). The duration at 20 V in the AV mode had a considerable influence on the morphological properties such as the thickness, ridge spacing, and pore size for the same cycles. As the duration at 20 V was increased, the length and ridge spacing decreased, while the pore size increased. This is due to the formation of a thick blocking layer that blocks the growth of TONT. However, the repetitive formation of ridges in the BT-TONT arrays induced an enlargement of the surface area, resulting in an improvement of the short-circuit current (Jsc) in dye-sensitized solar cells (DSSCs) in comparison with that of the SW-TONT arrays. In particular, the 20 V (20 min dwell time) TONTs exhibited a photoconversion efficiency (η) of 0.20% per thickness, compared with 0.077% for the SW-TONTs. Therefore, the formation of BT-TONT arrays can give an increased surface area for dye uptake, leading to an improved photoconversion efficiency.View full abstract -
Yu Muronoi, Jian Zhang, Masayoshi Higuchi, Hideyuki Maki2013 Volume 42 Issue 7 Pages 761-763
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESSA Ru(II)-based metallosupramolecular polymer RuL1 was synthesized by complexation of a Ru(II) salt and phenylenebis(terpyridine). The long polymer chains were observed on a Si substrate using atomic force microscopy. Interestingly, a RuL1 film showed luminescence from the 3MLCT state of the Ru(II) complex moieties at room temperature by excitation at the resonant wavelength of the 1MLCT absorption. In addition, we fabricated a solid-state polymer device with a RuL1 film and achieved reversible switching of the luminescence by applying voltages (3 and −3 V) between indium tin oxide electrodes, which caused electrochemical redox between Ru(II) and Ru(III).View full abstract -
Tetsuo Yatabe, Hajime Okumoto, Yuji Kawanishi, Takahito Inoue2013 Volume 42 Issue 7 Pages 764-766
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 25, 2013JOURNAL RESTRICTED ACCESS
Supplementary material1,4-Bis(phenylethynyl)benzene (BPB) derivatives with alkyl or alkoxy terminal chains were synthesized, and the mesomorphic and charge-carrier-transport properties were investigated. The BPB derivatives exhibited high charge-carrier mobilities in the crystal mesophase or crystal phase.View full abstract -
Yuki Sakamura, Moemi Yoshiura, Hengmin Tang, Takeshi Mori, Yoshiki Kat ...2013 Volume 42 Issue 7 Pages 767-768
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialA plasmid DNA and gold nanorods were directly injected to tumor in mice, and the tumor was heated to 39–42 °C through the photothermal effect of the gold nanorods. The heat treatment enhanced transgene expression from the plasmid DNA in the tumor and induced heat shock protein HSP70, related to several immune responses. This transfection technique combined with heat treatment will be applicable to DNA vaccination and gene therapy for immunological diseases.View full abstract -
Lichen Yang, Ruimao Hua2013 Volume 42 Issue 7 Pages 769-771
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 28, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialA one-pot synthesis of benzo[f]quinazoline by a novel cycloaddition of 1,4-diaryl-1,3-butadiynes with nitriles in the presence of trifluoromethanesulfonic acid at 120 °C is developed.View full abstract -
Weiwei Fu, Runwei Wang, Lele Wu, Hongbin Wang, Xu Wang, Aijing Wang, Z ...2013 Volume 42 Issue 7 Pages 772-774
Published: July 05, 2013
Released on J-STAGE: July 05, 2013
Advance online publication: May 29, 2013JOURNAL RESTRICTED ACCESS
Supplementary materialCopper hydroxyphosphate (Cu2(OH)PO4) crystals with various morphologies have been successfully synthesized by a simple hydrothermal method, using different organic amines as the morphology-controlling agents. These Cu2(OH)PO4 crystals were used as catalysts for phenol hydroxylation by H2O2, and they showed distinct activities. The sheet morphology of Cu2(OH)PO4 crystals with a large percentage of reactive facets ({011} facets) exhibited enhanced catalytic activity in hydroxylation of phenol.View full abstract
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