Chemistry Letters€¦ · 594 Dehydration of Concentrated Acetic Acid Solutions by Pervaporation...
Transcript of Chemistry Letters€¦ · 594 Dehydration of Concentrated Acetic Acid Solutions by Pervaporation...
Chemistry Lettershttp://www.csj.jp/journals/chem-lett/
Vol.36 No.5 CMLTAGMay, 2007 ISSN 0366-7022
Copyright � 2007 The Chemical Society of Japan
578 Development of New SemiconductingMaterials for Durable High-performanceAir-stable Organic Field-effect Transistors
Au (drain)Au (source)
n -Si (gate electrode)SiO2
Kazuo Takimiya, Yoshihito Kunugi, and TetsuoOtsubo
New thiophene- and selenophene-fused aromatic compounds were successfully developed as high-performance semicon-ducting materials for organic field-effect transistors (OFETs). Among them, the most advanced compounds designed onconsideration of structure–function relationship showed durable air-stable FET performance. This article highlights theresearch strategy and development of these superior compounds as well as the molecular factors for the improvement ofmobility, sensitivity, and stability, which are very informative for the design of practical semiconductors.
Highlight Review
Letter
584 Aromatic Fluorination Effect on the Meso-morphic Properties of Discotic LiquidCrystal of Alkoxybenzoyloxytriphenylene
OO O
O
OO
O
O
OR
OR
OR
OR
RO
ROO
O O
O
OO O
O
OO
O
O
OR
OR
OR
OR
RO
ROO
O O
FF
FFOF
F
FF
F
F
F
FF
F
FF
FF
F
FF
F FF
ND PhaseColh Phase
Fluorination of Aromatic rings
R=C6H13, C10H21
Yasuyuki Sasada, Hirosato Monobe, YasukiyoUeda, and Yo Shimizu
C-72 Chemistry Letters Vol.36, No.5 (2007)
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
586 Oxidative Degradation of Organic Pollutantsby Hydrogen Peroxide in the Presence ofFePz(dtnCl2)4 under Visible Irradiation
N
N
NN
N
N
N
N
S
S
SS
SS
S
S
ClCl
Cl
Cl
ClCl
Cl
ClFe
H2O2N
N
N
NNN
NN
SS
S
S
S
S
S S
Cl
Cl
ClCl
Cl
Cl
Cl Cl
Fe
O=OH
organic pollutants+ hv ( > 420nm)
CO2 + H2O 62. 5%mineralization
water-soluble productsaromic ring cleavage
80 min
Jie Sun, Yuping Sun, Kejian Deng, Haobo Hou,and Duoyuan Wang
588 Unexpected Reaction of an Overcrowded9,10-Dihydroanthrylchlorosilane Leading tothe Formation of a Dibenzo-7-silanorborna-diene Derivative
SiMe3H SiMe3
Me3Si
Me3Si
SiMe3
SiMe3
Tbt group
Si
H
Cl
TbtLDA
THF−40 °C
SiHTbt
Tbt
SiH
Takahiro Sasamori, Shuhei Ozaki, and NorihiroTokitoh
Electronic Supporting Information
590 Hexaphenylbenzene Derivatives for BlueOrganic Light-emitting Devices
Wide-energy-gap materials for blue organic light-emitting devices.
Soichi Watanabe and Junji Kido
592 Efficient Synthesis of Fused 1,2,3-Triazolo-�-lactams Using Huisgen [3 + 2] DipolarCycloaddition ‘‘Click-chemistry’’ in Water
Quick synthesis of 1,2,3-triazolo-δ-lactams from azides derived from amino acids using “click-chemistry” in water followed by cyclization.
NN
NN
X
O CO2Me
NPgX
N3
cycloaddition& cyclization
X= OH, N3, CH2, Ph, CH3, CH(CH3)2
Indresh Kumar and Chandrashekhar V. Rode
Electronic Supporting Information
594 Dehydration of Concentrated Acetic AcidSolutions by Pervaporation Using NovelMER Zeolite Membranes
4 µmThe surface of MER membrane
4 µm
After immersing in 90 wt % AcOHsolution at 40 °C for 4.5 days.
20 40 60 80 100
at 40 °C
wt % of water in the AcOH feed solution
0
20
40
60
80
100
0
wt %
of
wat
er in
the
perm
eate
pH = 1.9
PV performanceof low-silicaMER membrane
pH = 1.8
H2O–AcOHV–L–E curve
pH = 2.3
The MER zeolite membranes are
acetic acid solution.
relatively acid tolerant in low-silica8MR zeolite group, and the low-SAR-type MER membrane exhibited highwater selectivity even for a 90 wt %
Takako Nagase, Yoshimichi Kiyozumi,Yasuhisa Hasegawa, Tomoya Inoue, TakujiIkeda, and Fujio Mizukami
Chemistry Letters Vol.36, No.5 (2007) C-73
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
596 A Good Linear Relationship between theLogarithms of Formation Constants andthe Stabilization Energies of �- and �-Cyclo-dextrin Complexes of Several Phenol andBenzoic Derivatives
0 20 40 60 801
2
3
4
5
6
∆E / kJ·mol-1
log
Kf
R= 0.990
∆Es∆E
t
Hai Ming Wang and Le Xin Song
598 Fabrication and Photoluminescence of Ur-chin-like ZnO/MgO Hierarchical Structures
We report a one-step preparation of novel hollow urchin-like ZnO/MgO hierarchical structures,that is ZnO nanorods grown on hollow MgO microspheres.
a b
cLi-rong Qin, Jian-wei Zhao, Li-de Zhang, andXian-wu Zou
600 Spontaneous Assembly of Dendrite Structureby Coordination of Al to 5,8-Dihydroxy-1,4-naphthoquinone
Yoshihiro Koide and Yusuke Sato
602 Highly Emissive Pyrene-excimer Formationin Self-assembled Monolayer on Gold Sur-face and Photocurrent Generation from theExcimer
Strong pyrene excimer fluorescence is observed in the SAM derived from disulfide-functionalized bis-pyrene derivative on gold surface at the pyrene surface coverage similar tothat exhibits only weak monomer fluorescence in the SAM derived from disulfide-functinalizedmonopyrene derivative. The pyrene excimer is less sensitive to the quenching by gold substratethan pyrene monomer excited state. The photocurrent generates from the excimer emissiveSAM more effectively than the monomer emissive SAM.
Mitsunobu Nakamura, Norikazu Saito, KaoriTakayama, Satoshi Kumamoto, and KazushigeYamana
Electronic Supporting Information
604 Unexpected Ring-opening Reaction of Aziri-dine with Acetic Anhydride in DMF Ring-opening reactions of aziridines with acetic anhydride in DMF afforded the unexpected β-
amino formate in moderate to good yields. The possible mechanism is also proposed.
R2
R1
NTsDMF
O
O OR2 R1
NHTsOH
OR1 R2
NHTsOH
O+
β
Tianning Diao, Xiaoyu Sun, Renhua Fan, andJie Wu
C-74 Chemistry Letters Vol.36, No.5 (2007)
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
606 Cross-coupling Reaction of Allylic and Ben-zylic Carbonates with Organo[2-(hydroxy-methyl)phenyl]dimethylsilanes
OSiMe2
SiMe2
HO
R1
Pd (Cu) cat.50−80 °C(− CO2, HOR2) R1 = alkenyl, aryl
or
1) LiAlH4, AcCl2) Alkyne, Pt cat.
R1−MgX(X = Cl, Br)
O
O
R2O
R1
base-free !
Yoshiaki Nakao, Shiro Ebata, Jinshui Chen,Hidekazu Imanaka, and Tamejiro Hiyama
Electronic Supporting Information
608 Aerogel-like Three-dimensional Gold Nano-particle Network via Sublimation of VolatileOrganic Crystals Decorated with Gold Nano-particles
Yuzo Fujiki, Seiji Shinkai, and Kazuki Sada
610 Controlled Organization of Silver Nanopar-ticles into Network Assemblies by TuningpH Values
S
S
C
O O-
O
O-
C
SC O
O-
O
O-C
C
OO-
O
O-C
pH=5
pH=4
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
OH
SCO
O-
O
O-C
2D network
3D network
H-bonding
H-bonding
In this article, we investigated the assembly of 2-mercaptosuccinic acid-functionized silver NPs
controlling the pH values of the solution, variousdimensional networks of silver NPs can be obtained.
2-mercaptosuccinic acid (MSA) molecules, which
process two free −COONa (COOH) groups and
The −COONa groups can be acidified below its pKa
value and usually form intermolecular hydrogen
controlled by tuning pH values of solution. By
The nature of assembly is hydrogen bonding between
−SH group which interacted with silver NPs surface.
bonds.
Lanlan Sun, Gang Wei, Yonghai Song, LiWang, Cunlan Guo, Yujing Sun, and Zhuang Li
612 Henry Reaction and 1,4-Addition of Nitro-alkanes to �,�-Unsaturated Carbonyl Com-pounds under the Influence of MS 4 �A inDMSO
R' NO2
R'' MS 4 Å NO2
R' R''DMSOR1 R2
O
R2
OHR1
+
R3 R4
O+ MeNO2
MS 4 Å
DMSO
R3
R4
OO2NTakeshi Oriyama, Masaru Aoyagi, and
Katsuyuki Iwanami
614 Gold Electrodes Modified with Multilayersof M–TTF–Tetrathiolate (M = NiII andCuII, TTF = Tetrathiafulvalene)
TTFS4
Metal ion
Au
The Au electrode is modified with TTFS4n− anion and metal cations, in which the
square-coordinated metal ions can enhance the electron transition between the electrodeand the multilayers.
Yu Liu, Qin-Yu Zhu, Guo-Qing Bian,Wen-Juan Guo, Wen Lu, and Jie Dai
Electronic Supporting Information
Chemistry Letters Vol.36, No.5 (2007) C-75
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
616 Application of Bond Energy Density Analysis(Bond-EDA) to Diels–Alder Reaction
The bond energies of newly formed bonds on (a) ortho and (b) meta of transition state in theDiels−Alder reaction between 1-methoxy-1,3-butadiene and acrolein.
(a) ortho TS (b) meta TS
C
H
O
-54.7 -17.4 -34.9 -48.3
(in kcal•mol-1)
∆E‡ = 14.5 ∆E‡ = 20.7
Takeshi Baba, Motoki Ishii, Yasuaki Kikuchi,and Hiromi Nakai
Electronic Supporting Information
618 Tetrathiaselenepin Ring Fused to Benzeneand Naphthalene Benzo[1,2,3,4,5]tetrathiaselenepin is an unstable cyclic polychalcogenide. Substituents at the
neighboring positions as well as naphthalene can stabilize the ring.
SeSS
SS
SeSS
SSR1
R2
R1/ R2 = iPr/ H/ OMe
Ashraful Alam, Satoshi Ogawa, HirokiMuraoka, Masaru Kon-no, Shiduko Nakajo,and Ryu Sato
Electronic Supporting Information
620 Nitrogen-linked Aromatic Poly(2,7-carba-zole)s: Partially Annulated Poly(m-aniline)s
Tsuyoshi Michinobu, Hiroe Kumazawa, andKiyotaka Shigehara
Electronic Supporting Information
622 Synthesis and Reactivities of Sulfido-bridgedIr–W and Ir–Re Heterodinuclear Complexeswith Imido Ligands
IrSHSH
Me3P
Cp*
IrS
S
Me3P
Cp*
W
NAr
NAr
H2O
H2S
IrS
S
Me3P
Cp*
W
O
O
IrS
S
Me3P
Cp*
W
NAr
S
Kazuya Arashiba, Yoshiaki Tanabe, andYouichi Ishii
Electronic Supporting Information
624 Popcorn-like Morphology of Poly(methylmethacrylate) Particles Formed in Disper-sion Polymerization of Methyl Methacrylate Nonspherical, popcorn-like morphology of one-
component particles were formed in the unseeded
dispersion polymerization of methyl methacrylate
(MMA). The essential synthesis conditions of such
particles are relatively low temperature and low
initiator concentration.
Li-min Zhou, Shan Shi, Shin-ichi Kuroda, andHitoshi Kubota
C-76 Chemistry Letters Vol.36, No.5 (2007)
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
626 Mesostructured Silica with Bush-like Mor-phology and Its Transformation into Nano-meter-sized Mesoporous Silica Particles
A new bush-like morphology of mesostructured silica having stems, branches, and leaves andits reaction time dependence disintegration into nanometer-sized mesoporous silica particlesof 150–200 nm range are presented.
C16TMABr + H2O + EtOH + NH4OH + TEOS
120 min(g)
1µm60 min(f')
10µm15 min(d)
50µm
Mahendra P. Kapoor, Yuuki Kasama, MasaakiYanagi, Takuji Yokoyama, Hironobu Nanbu,and Lekh R. Juneja
628 Chiral Ionic Liquid Containing L-ProlineUnit as a Highly Efficient and RecyclableAsymmetric Organocatalyst for Aldol Reac-tion
+[Bmim]BF4
R H
O O
R
OH O
N
N
CH3
O
Br
NH
CO2H
Chiral IL
yield up to 94%ee up to 93%
(10 mol %)
Li Zhou and Lei Wang
630 Surfactant-assisted Hydrothermal Route toOrganometallic Tris(8-hydroxyquinoline)-aluminum Nanorod Bundles
Organometallic tris(8-hydroxyquinoline)aluminum nanorod bundles can be obtained via a newsurfactant-assisted hydrothermal route on a large scale. As-prepared nanorod bundles candisplay strong PL emission.
400 500 600 700 800-500000
0
500000
1000000
1500000
2000000
2500000
3000000
3500000
4000000
4500000
5000000
5500000
PL
Int
ensi
ty/ a
rb u
nit
Wavelength/ nm
b:AlQ3submicron particles
a: AlQ3 nanorod bundles
Dekun Ma, Junhao Zhang, Xiaokai Hu,Hongyang Zhou, and Yitai Qian
Electronic Supporting Information
632 Polyacrylamide-based Functional Polymer-immobilized Perruthenate for AerobicAlcohol Oxidation
R-CH2OH
O2 ( 1 atm: balloon )
R-CHO
O2balloon
Catalyst , toluene
80 °C
New catalyst: PEG-PNIPAAm-bound ruthenium catalyst
Aerobic Alcohol Oxidation
Hiromi Hamamoto, Masahiro Kudoh, HideyoTakahashi, Hideaki Natsugari, and ShiroIkegami
Electronic Supporting Information
634 Synthesis of Highly Functionalized Alkenyl-phosphines by Lewis Acid-mediated Silyl-phosphination of Substituted Propiolates
Ph2PSiMe2t Bu
Ph2P
R CO2Et
SiMe2t Bu
CO2EtR+CH2Cl2
Et3Al
51–85%
Minoru Hayashi, Yutaka Matsuura, KatsutoshiKurihara, Daisuke Maeda, YasunobuNishimura, Emi Morita, Miho Okasaka, andYutaka Watanabe
Electronic Supporting Information
Chemistry Letters Vol.36, No.5 (2007) C-77
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
636 A New Access to 3-Halo-3,3-difluoropropa-noic Acid Derivatives via Fluorine–HalogenExchange Reaction of Silyl Enolates of3,3,3-Trifluoropropanoic Acid Derivatives
OTMS
NH
F3CTiCl4 or TiBr4
ON
OO
Cl
FF
ON
OOF3C
R R
HalogenExchangeReaction
(Br)
O
R
O
TMSOTf/Et3N
72−89% yieldR = H, Bn
Enolization
Taichi Shimada, Tsutomu Konno, and TakashiIshihara
Electronic Supporting Information
638 Synthesis of Wholly Aromatic Polymers Pos-sessing Tetra-aryl-substituted Vinylene Unitsby Palladium-catalyzed Three-componentCoupling Polymerization
Ar Ar B(OH)2(HO)2B+ +
PdCl2(PhCN)2 / KHCO3
Wholly Aromatic Polymers Possessing Tetra-aryl-substituted Vinylene Units
Ar Ar
Ar Ar
n
II
Photoluminescencein the film
Ar =
2
Kojiro Nakagawa and Ikuyoshi Tomita
640 meso-Tetrakis(�,�,�,�-o-amidophenyl)por-phinatoiron(II) Bearing a Proximal HistidylGroup at the �-Pyrrolic Position via an AcylBond: Synthesis and O2 Coordination inAqueous Media
N
N N
NFe
HNNH
O
HN
NHO
O
O
NH
N
HNNH
O
O
OO
O
OO
H
4-Carboxybutanoyl group was successfully introducedinto the β-pyrrolic position of the meso-tetrakis(α,α,α,α,-o-(1-methylcyclohexanamido)phenyl)porphine by theFriedel−Crafts reaction, and the terminal carboxyl groupwas connected with glycyl-histidine, giving an ω-histidylside chain as a proximal base. Human serum albuminhybrid incorporating the ferrous complex formed a stableO2 adduct species in aqueous media (pH 7.4, 37 °C).
β α,α,α,α,
ω
Akito Nakagawa, Teruyuki Komatsu, andEishun Tsuchida
Electronic Supporting Information
642 Ionic Liquid-mediated Preparation Strategyfor CuCl Nanocrystal
Nanocrystal CuCl can be obtained through an environmentally friendly route in the absence ofconcentrated acid or additives. And the medium ionic liquid can be reused after the reaction.
CuCl2 + Cumagnetic stirring
I L2CuCl
Ling Wang, Chao Xu, Xiaochun Zhang, andTaokai Ying
644 DFT Study on the Mechanisms of C4H2 +CN Reaction
-60
-40
-20
0
20
40
ER:k
cal/m
ol
R
TS1
P1 C4H + HCN
TS2
IM1
TS3P3 HC5N + H
IM2
TS4P4 HC4NC + H
IM3
TS5
P5 HC3N + C2H
IM4
TS6 P6 HC2NC + C2H
P2 C4H + HNC
Yizhen Tang, Hao Sun, Yaru Pan, andRongshun Wang
C-78 Chemistry Letters Vol.36, No.5 (2007)
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
646 Lewis Acid Character of Zero-valent GoldNanoclusters under Aerobic Conditions: In-tramolecular Hydroalkoxylation of Alkenes
Au NC
OH
O CH3
δ-
δ+O2
Lewis acid
Ikuyo Kamiya, Hironori Tsunoyama, TatsuyaTsukuda, and Hidehiro Sakurai
Electronic Supporting Information
648 Amino Acid Derived Epoxide Ring Openingunder Microwave Irradiation
BocHNO
BocHN NH
OH
HAlaValNHBn
ONH
OHN
Al2O3, MW, 3min27%
Nadia Vaiana, Luca Rizzi, and Sergio Romeo
Electronic Supporting Information
650 The First Resonance Hybrid of Silyl–Car-bene and Pyridyl–Silylene Complexes: For-mation by Aryl C–H Bond Activation ofDMAP [4-(Dimethylamino)pyridine] on aSilylene Complex O
SiMe2Me2SiH
CO
W
N
NMe2
– MeH
Me2Si SiOC
HO
Me
W N
NMe2
Rockshana Begum, Takashi Komuro, andHiromi Tobita
Electronic Supporting Information
652 Controlled Fabrication of Decahedral GoldNanostructures by a Thermal Approach
The decahedral Au nanocrystals were prepared by a simple one-step wet-chemical route; which iscarried out by the thermal process of HAuCl4 with PVP in aqueous media. By using PVPs withdifferent chain length, decahedral, icosahedral, and plate-like Au nanostructures were obtained.
Min Zhou, Shenhao Chen, Haiqing Sun, andXiuyu Liu
Electronic Supporting Information
654 Facile Synthesis of (�)-Ascochlorin UsingPalladium-catalyzed Three ComponentCoupling Reaction
OMe
I
OMe
OMe
Ts
OMep-TsNa (2.2 equiv.)
NaHCO3 (1.5 equiv.)
DMSO
Pd2(dba)3CHCl3 (5 mol %)
( excess ) n-Bu4NI (1.1 equiv.) OHC
Cl
OH
OH
O
(−)-Ascochlorin
Makoto Aoki, Kenji Kawashima, HirohisaFujihara, and Isao Shimizu
Chemistry Letters Vol.36, No.5 (2007) C-79
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
656 Stereochemistry of Decarboxylation of Aryl-malonate Catalyzed by Mutant Enzymes
The enantiotopos differentiating selectivity of the mutant arylmalonate decarboxylase(S36N/G74C/C188S), which catalyzes asymmetric decarboxylation of arylmethylmalonates togive the correspondibng arylpropionates, was revealed to be the same as that of the wild typeenzyme, in spite of the fact that two enzymes gave the opposite enantiomer with each other.
Me
ArCO2H
13CO2H
Me
Ar
13C
C
O
O
O
O H
S -8
Me
Ar
13C
C
O
O
O
O H
wild type
mutant
Me
Ar
13C
O
OH
Cys188
Cys74
Gly188
Gly74
SH
Me
Ar
13C
O
OH
HS
CO2
CO2
Me
Ar13CO2H
H
R -13C-9
Me
ArH
13CO2H
S -13C-9
inversion
retention
Kenji Miyamoto, Tomomi Tsutsumi, YosukeTerao, and Hiromichi Ohta
Electronic Supporting Information
658 Efficient Method for Dehydration Condensa-tion Using Pyridine-3-carboxylic Anhydride(3-PCA): Synthesis of Carboxamides fromNearly Equimolar Amounts of CarboxylicAcids and Amines
R1 OH
O+
N
O
O O
N
0 °C, 1 hR1 NR2R3
O
(1.0 equiv.)(1.1 equiv.)
DMAP (1.1 equiv.)R2R3NH
(1.1 equiv.)
88−98 %
Setsuo Funasaka and Teruaki Mukaiyama
660 Adsorption of Manganese Porphyrin onMetal Oxides and Its Enhanced CatalyticActivity on Epoxidation Reaction
Yutaka Hitomi, Hidefumi Mukai, JunyaOhyama, Masashi Shinagawa, TetsuyaShishido, and Tsunehiro Tanaka
Electronic Supporting Information
662 Thia- and Selenasilaboriranes and 1,3,2,4-Di-oxasilaboretane from a Stable Silaborene
Si B
OS
NSi
BN
O
Norio Nakata and Akira Sekiguchi
Electronic Supporting Information
664 An Axial Subphthalocyanine as RatiometricFluoride Ion Sensor
Yang Li, Sheng Xu, Xin Li, Kongchang Chen,and He Tian
Electronic Supporting Information
C-80 Chemistry Letters Vol.36, No.5 (2007)
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
666 Asymmetric Trifluoromethylation of Ke-tones with (Trifluoromethyl)trimethylsilaneCatalyzed by Chiral Quaternary AmmoniumPhenoxides
O
+ Me3SiCF3
HO
N
N
H
F3C 3
CF3
CF3OPh
Rtoluene−CH2Cl2 (7:3 v/v)
F3C 3(10 mol %)
99% yieldup to 87 %ee−78 °C, 1h
R
CF
OSiMe
Hitoshi Nagao, Yoshinobu Yamane, andTeruaki Mukaiyama
668 �-1,3-Glucan Schizophyllan Can Act as aOne-dimensional Host to Arrange Icosahe-dral Carboranes
Munenori Numata, Shingo Tamesue, TakeshiNagasaki, Kazuo Sakurai, and Seiji Shinkai
Electronic Supporting Information
670 Synthesis of Mesoporous Silica Single Crys-tal SBA-16 by Fluorinated Surfactants withShort Carbon Chains
Xiangju Meng, Daling Lu, and Takashi Tatsumi
672 Self-assembled Silver Dendritic Nanostruc-ture on the Surface of AAO Template
Zhijun Wang, Feng Tao, Dongbo Chen,Lianzeng Yao, Weili Cai, and Xiaoguang Li
674 Microwave-assisted Fabrication of PS@CdSCore–Shell Nanostructures and CdS HollowSpheres
Yongqiang Wang, Guozhong Wang,Hongqiang Wang, Chunjuan Tang, Zhi Jiang,and Lide Zhang
Chemistry Letters Vol.36, No.5 (2007) C-81
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
676 Efficient Preparation of vic-Diacetates fromEpoxides and Acetic Anhydride in the Pres-ence of Iron(III)-substituted Polyoxometa-late as Catalyst
O
R
(TBA)4[PFeW11O39].3H2O
Ac2O, 100 oC
AcO
R OAc
Catalytic ring opening of 1,2-epoxides with acetic anhydride for the one-pot synthesis of
1,2-diol esters in high to excellent yields under solvent-free condition are achieved efficiently
in the presence of (TBA)4PFeW11O39.3H2O, as catalyst.
Bahram Yadollahi and Farhad Kabiri Esfahani
Electronic Supporting Information
678 Construction of Supramolecular Complexesby Use of Planar Bis(�-diketonato)cobalt(II)Complexes as Building Blocks
Jun Yoshida, Shin-ichi Nishikiori, and ReikoKuroda
Electronic Supporting Information
680 Selective Preparation of Zinc Oxide Nano-structures by Electrodeposition on the Tem-plates of Surface-functionalized PolymerParticles
Mitsuru Watanabe, Hiroki Aritomo, IppeiYamaguchi, Tsutomu Shinagawa, ToshiyukiTamai, Akimasa Tasaka, and Masanobu Izaki
Electronic Supporting Information
682 A Polydiacetylene Supramolecular Systemthat Displays Reversible Thermochromism
1. Molecular Assembly2. hν3. Heating & Cooling
O
NH
O
NH
OO
O
OO
O
1
400 450 500 550 600 650 700 750 8000.0
0.1
0.2
0.3
0.4
Ab
sorb
ance
Wavelength /nm
20 oC 35 50 65 80 95
Heating
20 oC
95 oC
Cooling
Cheol Hee Lee, Jong Seung Kim, Sun YoungPark, Dong June Ahn, and Jong-Man Kim
Electronic Supporting Information
684 Acid–Base Property of EthylammoniumNitrate Ionic Liquid Directly ObtainedUsing Ion-selective Field Effect TransistorElectrode
Is ionic liquid of onium salt “ionic” ?
Ryo Kanzaki, Kuniaki Uchida, Shota Hara,Yasuhiro Umebayashi, Shin-ichi Ishiguro, andSatoshi Nomura
C-82 Chemistry Letters Vol.36, No.5 (2007)
Copyright � 2007 The Chemical Society of Japan http://www.csj.jp/journals/chem-lett/
686 Micropatterned Film of Silica-coated GoldNanoparticles Formed by Covalent Bonds
Monodisperse gold nanoparticles coated with silica shells (Au@SiO2) were prepared byvortex mixing instead of magnetic stirring. With well-established surface-chemicalproperty, the Au@SiO2 nanoparticles were functionalized with the silane reagent 3-gylcidoxypropyltrimethoxysilane (GPTS). Then, these epoxy-terminated Au@SiO2
nanoparticles could be easily assembled onto the silicon surface, which had been patternedwith 3-aminopropyltriethoxysilane (APS) SAMs and octadecyltrichlorosilane (OTS) SAMsalternately, by covalent bonding to form close packed two-dimensional nanoparticle arrays.
Youli Qi, Miao Chen, Shan Liang, Jing Zhao,Wu Yang, and Weimin Liu
Electronic Supporting Information
688 Preparation of �-MnO2 Nanorods andCo3O4 Submicrooctahedrons by Molten SaltRoute
α-MnO2 nanorods and Co3O4 submicrooctahedrons have been obtained by simplemolten salt preparation route using cheap reagents.
Songlin Ran and Lian Gao