-
Chemistry Lettershttp://www.csj.jp/journals/chem-lett/
Vol.40 No.12 CMLTAGDecember, 2011 ISSN 0366-7022
Copyright © 2011 The Chemical Society of Japan
Highlight Review
1316 Arylethynylanthraquinone and
Bis(aryleth-ynyl)anthraquinone: Strong DonorAcceptorInteraction and
Proton-induced Cyclizationto Form Pyrylium and Dipyrylium Salts
Ryota Sakamoto, Koya Prabhakara Rao, andHiroshi
Nishihara*doi:10.1246/cl.2011.1316
Letter
1327 Rapid and Continuous Polyol Process forPlatinum
Nanoparticle Synthesis Using aSingle-mode Microwave Flow
Reactor
Reactor tube
Platinum nanoparticles
MW cavity
Frequencyadjustedmicrowave
Electric field intensity
Low High
10.0 10.0
40.0 40.0
70.0 70.0
100.0100.0
130.0130.0
160.0160.0
190.0190.0
Flow
dir
ectio
n
Masateru Nishioka,* Masato Miyakawa, YoheiDaino, Haruki Kataoka,
Hidekazu Koda, KoichiSato, and Toshishige M.
Suzuki*doi:10.1246/cl.2011.1327Electronic Supporting
Information
1330 Insights into Uranyl Ion Binding to Ubiq-uitin from
Molecular Modeling and Dynam-ics Simulations
A computer modeling struture of uranyl−ubiquitin complex
(UO2
2+−Ub) overlapps with Ub (in gray).
Ying-Wu Lin,* Chang-Ming Nie, and
Li-FuLiaodoi:10.1246/cl.2011.1330
http://www.csj.jp/journals/chem-lett/http://dx.doi.org/10.1246/cl.2011.1316http://dx.doi.org/10.1246/cl.2011.1327http://dx.doi.org/10.1246/cl.2011.1330
-
1332 Generation of Brønsted Acid Sites on Alu-mina-supported
Tantalum(V) Oxide Cal-cined at 1223K
1223 K
+
Ta2O5/Al2O3
Brønsted acid site
OCH3
OCH3OH
Tomoyuki Kitano, Shota Okazaki, TetsuyaShishido,* Kentaro
Teramura, and TsunehiroTanaka*doi:10.1246/cl.2011.1332Electronic
Supporting Information
1335 ONOFF Switching of the SolvatochromicBehavior of a
Copper(II)Hydrazone Com-plex Induced by
Protonation/Deprotonation
Mee Chang, Atsushi Kobayashi,* Ho-CholChang, Kiyohiko Nakajima,
and Masako Kato*doi:10.1246/cl.2011.1335Electronic Supporting
Information
1338 Protein Nanotube Arrays Immobilized onSolid Substrates:
Molecular Trap in AqueousMedium
10 µm 1 µm
Incubation
FITC-biotin
Ryunosuke Kato and Teruyuki
Komatsu*doi:10.1246/cl.2011.1338Electronic Supporting
Information
1340 Quaternary-ammonium-bearing AromaticSurfactants: Effect of
the Alkyl ChainPositions on Their Micelle and DNA-com-plex
Structures
QAmp12
+DNA
QAmm12
+DNA
The isomerism in QAmm and QAmp induces dramatic difference in
both micellar assembling and DNA-complexed structures. The former
showed a hexagonally packed cylinder, while the latter a lamella.
After complexation with DNA, both show a sandwiched lamella, but
the spacing is different.
Takuma Matsuo, Shota Fujii, Yumi Kamikawa,Tomoki Nishimura,
Yusuke Sanada, ShinichiMochizuki, and Kazuo
Sakurai*doi:10.1246/cl.2011.1340Electronic Supporting
Information
1343 Synthesis and Stereochemical Behavior of aNew Chiral
Oxa[7]heterohelicene
OH
I I
TMS H
HO OH
Sonogashira-coupling
(rapid inversion of helical ring)
DMSO, rt
64%
O O
Oxa[7]heterohelicene
Pd(OAc)2 (10 mol%)air (O2)Ryo Irie,* Akihiro Tanoue, Suguru
Urakawa,
Tatsushi Imahori, Kazunobu Igawa, TaisukeMatsumoto, Katsuhiko
Tomooka, ShinsukeKikuta, Tatsuya Uchida, and Tsutomu
Katsukidoi:10.1246/cl.2011.1343Electronic Supporting
Information
Chemistry Letters Vol.40, No.12 (2011)C-126
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1332http://dx.doi.org/10.1246/cl.2011.1335http://dx.doi.org/10.1246/cl.2011.1338http://dx.doi.org/10.1246/cl.2011.1340http://dx.doi.org/10.1246/cl.2011.1343http://www.csj.jp/journals/chem-lett/
-
1346 Skeletal Silica Nanoparticles Prepared byControl of
Reaction Polarity
We report skeletal silica nanoparticles using cubic template
whose surface is coated by surfactant. The controlling factors, (a)
high acidity of silanol compared to that of surfactant, (b) low
affinity between surfactant and organic medium, and (c) high
surface energy of vertex and edge of the template, are associated
to obtain such structures.
Chika Takai, Masayoshi Fuji,* and
KyoichiFujimotodoi:10.1246/cl.2011.1346Electronic Supporting
Information
1349 Spontaneous Conversion of 3-Alkyl-substi-tuted
3-Hydroperoxypyrrolidine-2,4-dionesinto
5-Alkyl-5-hydroxyoxazolidin-4-ones
Md. Aminul Haque, Hayato Ishikawa, andHiroshi
Nishino*doi:10.1246/cl.2011.1349
1352 Diameter Control of Silver Nanowires byChloride Ions and
Its Application as Trans-parent Conductive Coating (1) nAgNO3 + KCl
3 + (n-1)NO3- + (n-1)Ag+
Ag+ + Cl-
Ag0 seeds
Ag0 nucleiEG
Ag0 nanowires
(2) Ag0 nuclei Spray Coating
Transparent Conductive Coating
AgCl + KNO
Ya-Hsing Chang, Yu-Chieh Lu, and
Kan-SenChou*doi:10.1246/cl.2011.1352
1354 Assembling and Patterning of Diatom Frus-tules onto PDMS
Substrates Using Photo-assisted Chemical Bonding
After ultraviolet irradiation, the –OSi(CH3)2O− groups of PDMS
surface were changed into –O4Si(OH)4−n −, and more Si−OH groups
generated. The active Si−OH groups on contact surface of PDMS and
diatom may form a –Si–O–Si– crosslinking structure via condensation
reaction. After 48 h, the patterned frustules were firmly bonded
onto the PDMS surface.
Yu Wang, Junfeng Pan, Jun Cai, Aobo Li,Mingli Chen, and Deyuan
Zhang*doi:10.1246/cl.2011.1354Electronic Supporting Information
1357 p-Aminophenyl Alkyl Ether-based 19FMRIProbe for Specific
Detection and Imaging ofHypochlorite Ion
19F MRI probe for the specific detection and imaging of
–OCl.
Tomohiro Doura, Qi An, Fuminori Sugihara,Tetsuya Matsuda, and
Shinsuke Sando*doi:10.1246/cl.2011.1357Electronic Supporting
Information
Chemistry Letters Vol.40, No.12 (2011) C-127
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1346http://dx.doi.org/10.1246/cl.2011.1349http://dx.doi.org/10.1246/cl.2011.1352http://dx.doi.org/10.1246/cl.2011.1354http://dx.doi.org/10.1246/cl.2011.1357http://www.csj.jp/journals/chem-lett/
-
1360 Raman, UVvis, and CD SpectroscopicStudies of Dodecameric
Oxyhemocyaninfrom Carcinus aestuarii
Niels H. Andersen, Giorgio Zoppellaro, LuigiBubacco, Luigi
Casella, and K.
KristofferAndersson*doi:10.1246/cl.2011.1360Electronic Supporting
Information
1363 Refractive Index Changes in Polymers Bear-ing Pendant
Active Ester Groups by Ther-mal Rearrangement Reaction
C
S
O N
C
S
O N
C O
S
O N
n
SO
N
C
SO
N
C
Δn ≈ +0.01
O OO O Δ
Makoto Miyasaka, Ayano Higurashi, andAtsushi
Kameyama*doi:10.1246/cl.2011.1363Electronic Supporting
Information
1366 pH- and Temperature-induced Crystalliza-tion of Aqueous
Dispersions of PositivelyCharged
Poly(styrene-co-2-vinylpyridine)Particles
Ryota Nagano, Akiko Toyotama,* and
JunpeiYamanakadoi:10.1246/cl.2011.1366
1368 In Situ Observation ofWacker-type ReactionSystem in Organic
Solvent by X-ray Absorp-tion Fine Structure (XAFS) Analysis
Pd(OCOCF3)2
Cu(OCOCF3)2
Homogeneous Reaction System
X-ray from Synchrotron Radiation Source
In-situ Observation
1-OcteneShin-ichi Okuoka, Takeo Akatsuka, YasuyukiMiyoshi, Aki
Tsukajima, Makoto Saito, andKoji
Yonehara*doi:10.1246/cl.2011.1368
1371 Fast Synthesis of Highly Dispersed AnataseTiO2 Nanocrystals
in a Microfluidic Reactor
Monodispersed anatase TiO2 nanocrystals were synthesized by a
microfluidic reactor within a time as short as one or two minutes.
The results showed that the 5.0-nm-sized nanocrystals possessed a
high specific surface area of 314.5 m2 g−1 with both mesopores and
micropores existent.
Li Zhang, Yaogang Li, Qinghong Zhang,*Guoying Shi, and Hongzhi
Wang*doi:10.1246/cl.2011.1371Electronic Supporting Information
Chemistry Letters Vol.40, No.12 (2011)C-128
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1360http://dx.doi.org/10.1246/cl.2011.1363http://dx.doi.org/10.1246/cl.2011.1366http://dx.doi.org/10.1246/cl.2011.1368http://dx.doi.org/10.1246/cl.2011.1371http://www.csj.jp/journals/chem-lett/
-
1374 Electrooxidation of Formic Acid at Plati-numGold
Nanoparticle-modified Electrodes
Platinum nanoparticles have been electrodeposited on gold
nanoparticle (AuNP)-modified glassy carbon (GC) substrate to serve
as anodic electrocatalyst for the electrooxidation of formic acid.
Interestingly, the assembling procedure of AuNPs on the GC
substrate influenced greatly the degree of the catalytic
enhancement for this reaction. The continuity interruption of Pt
sites played a significant role for the observed enhancement.
Islam M. Al-Akraa, Ahmad M. Mohammad,Mohamed S. El-Deab,* and
Bahgat E.El-Anadoulidoi:10.1246/cl.2011.1374
1376 Urea-induced Direct Synthesis of Nanostruc-tured ¡-Ni(OH)2
on Nickel Foam
A thermodynamically controlled process leads to the formation of
urchin-like α-Ni(OH)2 spheres that are composed of nanofibers with
average diameter of less than 20 nm. The nanostructured Ni(OH)2
displayed a good electrochemical activity with a maximum specific
capacitance of 103 mA h g−1 at a current density of 2.5 A g−1.
Sa Lv and Shuangxi Xing*doi:10.1246/cl.2011.1376Electronic
Supporting Information
1378 A Novel Approach to Branched Polymers viaLatent Thiol
Chain-transfer Polymerization
A novel branched polymerization using a latent chain-transfer
monomer.
Jinqiang Jiang,* Xiuli Jia, Xin Chen, YiwuZong, Hongwu Zhang,
Ling Lin, Xiaoya Liu,and Mingqing
Chen*doi:10.1246/cl.2011.1378Electronic Supporting Information
1381 Temperature-swing Microfluidic Separationof Uranyl Ions
Using ThermoresponsiveCopolymer Brushes
Catch-and-release of uranyl ions onto the microfluidic
channels.
Takehiko Tsukahara* and Naokazu
Idotadoi:10.1246/cl.2011.1381
1383 Fast Preparation of High-performance Zeo-lite T Membranes
in Fluoride Media
Zeolite T membranes with high pervaporation performance were
formed rapidly on seeded mullite tubes in fluoride media in only 6
h. The as-synthesized membranes showed a high water-selective
permeation toward water/alcohol mixtures.
19F MAS NMR spectra of zeolite T powder by in situ hydrothermal
synthesis
Rongfei Zhou, Fei Zhang, Na Hu, XiangshuChen,* and Hidetoshi
Kitadoi:10.1246/cl.2011.1383Electronic Supporting Information
Chemistry Letters Vol.40, No.12 (2011) C-129
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1374http://dx.doi.org/10.1246/cl.2011.1376http://dx.doi.org/10.1246/cl.2011.1378http://dx.doi.org/10.1246/cl.2011.1381http://dx.doi.org/10.1246/cl.2011.1383http://www.csj.jp/journals/chem-lett/
-
1386 Rapid Access to 3-Aryltetralin Skeleton viaC(sp3)H Bond
Functionalization: Investiga-tion on the Substituent Effect of
AromaticRing Adjacent to CH Bond in HydrideShift/Cyclization
Sequence
The concise construction of 3-aryltetralin skeleton via
hydride-shift-mediated C–H bond functionalization was achieved. In
this process, the benzylic [1,5]-H shift occurred smoothly to
furnish tetralin derivatives in good to excellent chemical yields.
The electronic and steric properties of the aromatic ring adjacent
to the C–H bond influenced significantly the reactivity of this
transformation.
CH2
Ar CH2
Ar
Sc(OTf)3
N
ClCH2CH2Clreflux
H
H
CH2
Ar
H
[1,5]-H Shift
C – C bondformation
criticalelectronic factor
NN
O
O
O
N
O
O O
NN
O O
O
Sc3+
ArHCl OMeMe
30 mol%88%, 24 h
5 mol%94%, 24 h
1 mol%95%, 10 h
0.5 mol%90%, 12 h
cat.
Keiji Mori, Shosaku Sueoka, and
TakahikoAkiyama*doi:10.1246/cl.2011.1386Electronic Supporting
Information
1389 Fire-shielding Properties of Flexible, Trans-parent
LaponitePEG Hybrid Film
Kazuhiro Shikinaka, Kazuto Aizawa, YoshihitoOsada, and Kiyotaka
Shigehara*doi:10.1246/cl.2011.1389Electronic Supporting
Information
1392 Carbazole and Hydroxy Groups-taggedPoly(aspartic acid)
Scale Inhibitor for Cool-ing Water Systems
In order to conveniently monitor the concentration of
poly(aspartic acid) (PASP) used as a green scale inhibitor in
cooling water systems, and to improve calcium phosphate inhibition,
carbazole and hydroxy groups-tagged PASP (CHGTPASP) was synthesized
by ring-opening reaction of N-(2,3-epoxylpropyl)carbazole (EPC)
with partially ethanolamine-modified polysuccinimide (PEAMPSI)
followed by alkaline hydrolysis. CHGTPASP has good Ca3(PO4)2 and
CaCO3 inhibition and its fluorescence intensity (Fi) is good linear
to concentration. These multifunctional properties are of
importance in industrial water processing economically and
environmentally.
Li-Jun Gao, Jiu-Ying Feng,* Bei Jin, Qiu-NaZhang, Tian-Qin Liu,
Yang-Qing Lun, andZhao-Jun Wudoi:10.1246/cl.2011.1392Electronic
Supporting Information
1395 A Nonadiabatic Ab Initio Dynamics Studyon Rhodopsin and Its
Analog Isorhodopsin:Chemical Dynamics Reasons behind Selec-tion of
Rhodopsin by Life
Wilfredo Credo Chung,* Shinkoh Nanbu, andToshimasa
Ishidadoi:10.1246/cl.2011.1395Electronic Supporting Information
1398 SR-XRF Imaging of Cs Highly Accumulatedin Vegetables
Cabbage (symbol A) and two other vegetables accumulate Cs to
more than 10000 ppm. The concentrations and ditribution of Cs in
these plants were revealed by in vivo synchrotron radiation X-ray
fluorescence imaging.
A B C
Plant name A:Brassica oleracea var. capitata, B:Lactuca sativa,
C:Brassica campestris var. perviridisIzumi Nakai,* Nahoko Oda, and
Yasuko Teradadoi:10.1246/cl.2011.1398
Chemistry Letters Vol.40, No.12 (2011)C-130
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1386http://dx.doi.org/10.1246/cl.2011.1389http://dx.doi.org/10.1246/cl.2011.1392http://dx.doi.org/10.1246/cl.2011.1395http://dx.doi.org/10.1246/cl.2011.1398http://www.csj.jp/journals/chem-lett/
-
1400 Color Evolution and Thermal Behavior ofSilica (SiO2)- and
Zircon (ZrSiO4)-coatedNano ¡-Fe2O3 Pigments
Ri Yu, Jae-Hwan Pee, Kyung Ja Kim, andYooJin
Kim*doi:10.1246/cl.2011.1400Electronic Supporting Information
1402 Volatile Organic Compound Sensing by GoldNanoparticles
Capped with Calix[4]areneLigand
Mutsumi Kimura,* Mei Yokokawa, Seiko Sato,Tadashi Fukawa, and
Takashi Miharadoi:10.1246/cl.2011.1402Electronic Supporting
Information
1405 Direct Synthesis of Phenol from Benzeneover Platinum-loaded
Tungsten(VI) OxidePhotocatalysts with Water and MolecularOxygen
Osamu Tomita, Ryu Abe,* and Bunsho
Ohtanidoi:10.1246/cl.2011.1405
1408 Tin Tetra(tert-butoxide) with AcidBase Ad-ditives: Valid
Catalyst Precursors for DirectSynthesis of Dimethyl Carbonate from
CO2and CH3OH
Sn(Ot-Bu)4 is a user-friendly precatalyst for the direct
synthesis of dimethyl carbonate from CO2 and MeOH. It is far more
active than the conventional Bu2Sn(OMe)2 catalysts. The addition of
acid and/or base cocatalysts as well as optimization of the CO2
pressure improved the catalytic activity.
Yoichi Masui, Shunsuke Haga, and
MakotoOnaka*doi:10.1246/cl.2011.1408Electronic Supporting
Information
1411 Nanoscale Laser Processing of Hollow SilicaMicrobeads
Assisted by Surface PlasmonResonance of Gold Particles
Au
SiO2 PoreVoid
Laser irradiation(532 nm)
Au −SiO2 composite shell particle
hollow SiO2shell particle
Koji Furukawa, Tatsuya Kameyama, Ken-ichiOkazaki, Takayuki Yako,
Masashi Otsuki,Yasuyuki Tsuboi,* and Tsukasa
Torimoto*doi:10.1246/cl.2011.1411Electronic Supporting
Information
Chemistry Letters Vol.40, No.12 (2011) C-131
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1400http://dx.doi.org/10.1246/cl.2011.1402http://dx.doi.org/10.1246/cl.2011.1405http://dx.doi.org/10.1246/cl.2011.1408http://dx.doi.org/10.1246/cl.2011.1411http://www.csj.jp/journals/chem-lett/
-
1414 Novel Synthetic Method for Metalloporphyr-ins with
Inorganic Metal Salts in High-temperature Water
Takafumi Sato, Katsutoshi Ebisawa, Satoshi Ito,Kiwamu Sue, and
Naotsugu Itoh*doi:10.1246/cl.2011.1414Electronic Supporting
Information
1417 Synthesis and Enhanced Radical ScavengingActivity of a
Conformationally ConstrainedEpigallocatechin Analogue
O
OH
HO
OH
OHOH
O
O
HO
OH
OHOH
O
epigallocatechin
OH OHKohei Imai, Ikuo Nakanishi, Kazunori Anzai,Toshihiko Ozawa,
Naoki Miyata, Shiro Urano,Haruhiro Okuda, Asao Nakamura, and
KiyoshiFukuhara*doi:10.1246/cl.2011.1417
1420 Glycine Amino Acid Transport inside theNanopores of
Lysozyme Protein Crystal
0
5
10
15
20
0 0.5 1 1.5
r/nm
g (
r)
Glycine
Glycine 1 unit cell Lysozyme
Nafiseh Farhadian,* Kourosh Malek, MojtabaShariaty-Niassar, and
Ali Magharidoi:10.1246/cl.2011.1420
1423 AC Electrochemical Stability of IonicLiquids AC
electrochemical windows of ionic liquids were studied and were
found to be much wider
than the DC case.
Fulong Yang, Zuopeng Li, Shiguo Zhang,Qinghua Zhang, Xiaodong
Hu, XiaopingZhang,* and Youquan
Deng*doi:10.1246/cl.2011.1423Electronic Supporting Information
1426 Softness Evaluation of Silicone Elastomers
x / cm x / cm
y /
cm
y /
cm
We evaluated the softness of various silicone elastomers
installed on a tactile evaluation system. The softness of the
elastomers was reflected by the vertical force when subjects pushed
the elastomers with their fingers. The moving behavior depended on
the elastic properties of the contacted objects; namely, a pushing
pattern and sliding pattern were observed for the soft and hard
elastomers, respectively.
Yoshimune Nonomura,* Takehito Baba,Takaaki Miyashita, and
Takashi Maenodoi:10.1246/cl.2011.1426
Chemistry Letters Vol.40, No.12 (2011)C-132
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1414http://dx.doi.org/10.1246/cl.2011.1417http://dx.doi.org/10.1246/cl.2011.1420http://dx.doi.org/10.1246/cl.2011.1423http://dx.doi.org/10.1246/cl.2011.1426http://www.csj.jp/journals/chem-lett/
-
1428 Synthesis and Lithium Storage Properties ofNiO@TiO2
Nanotube Heterojunction Arrays
Well-aligned TiO2 nanotube arrays were fabricated via
anodization on Ti foil. Pulse current technique was employed to
deposit metallic Ni into TiO2 nanotube arrays and realize a
secondary hollow tubular structure. Subsequent annealing converted
Ni into NiO and retained this novel tube-in-tube architecture.
Characterizations had confirmed this point. Besides,
electrochemical tests manifested that NiO@TiO2 nanotube arrays was
a promising anode material for Li-ion batteries.Lili Wang, Shichao
Zhang,* and Xiaomeng Wu
doi:10.1246/cl.2011.1428
1431 Oxygen Atom Transfer from Peroxide Inter-mediates to
Fullerenes
Photoreaction of C60 and C70 with adamantylideneadamantane or
sulfide under oxygen flow gives fullerene epoxide together with
adamantylideneadamantane epoxide or sulfoxide via peroxide
intermediates.
Yutaka Maeda, Yasuyuki Niino, Takuya Kondo,Michio Yamada,
Tadashi Hasegawa, andTakeshi
Akasaka*doi:10.1246/cl.2011.1431Electronic Supporting
Information
Chemistry Letters Vol.40, No.12 (2011) C-133
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1428http://dx.doi.org/10.1246/cl.2011.1431http://www.csj.jp/journals/chem-lett/
-
1434 Sequential SuzukiMiyaura Cross-couplingReactions of
4-Halopyrazolyl MIDA 3-Boro-nates: A Modular Synthetic Entry to
3,4-Bis(hetero)aromatic Pyrazoles
4-Iodopyrazolyl MIDA 3-boronates, readily accessible via sydnone
cycloaddition of ethynyl MIDA boronate and subsequent iodination,
are valuable scaffolds for the orthogonal functionalization of the
pyrazole ring by means of Suzuki cross-coupling reactions.
O
NN
R
OBmida
+N
N
Bmida
R
I
NN
(Het)Ar2
R
(Het)Ar1 Suzukicross-coupling
1/ (Het)Ar1B(OH)22/ (Het)Ar2I
1/ [3+2] (-CO2)
2/ NIS/TFAThierry Delaunay, Mazen Es-Sayed, Jean-PierreVors,
Nuno Monteiro,* and Geneviève
Balme*doi:10.1246/cl.2011.1434Electronic Supporting Information
1437 Diacenaphtho[1,2-b;1¤,2¤-d]silole and -pyrroleSi
Ph PhN
PhBr Br
Yoshiharu Nagasaka, Chitoshi Kitamura,Hiroyuki Kurata, and
Takeshi Kawase*doi:10.1246/cl.2011.1437Electronic Supporting
Information
1440 Stereoselective Synthesis of AllylsilanesBearing
Tetrasubstituted Olefin via 2,2-Diborylethylsilane
Me3SiBpin
BpinLTMPTHF, 0 °C, 5 min
thenPh
BpinMe3Si
Me
Me
BpinMe3Si
Ph
+
Ph
O
Me 98%, >99/1Kohei Endo,* Akira Sakamoto, TakahiroOhkubo, and
Takanori Shibata*doi:10.1246/cl.2011.1440Electronic Supporting
Information
1443 Selective Dimerization of Aryl-substitutedTerminal Alkynes
on Bis(indenyl)zircono-cene Derivatives
Ar
[(Ind)3ZrH]or
[(Ind)2Zr(CO) ]22 (Ind)2Zr
A
Ar
(Ind)2Zr
Ar
(Ind)2Zr
ArAr
Ar
+
Not obtained
r
Shenyong Ren, Takashi Seki, David Necas,Hiroyuki Shimizu,
Kiyohiko Nakajima,Ken-ichiro Kanno, Zhiying Song, and
TamotsuTakahashi*doi:10.1246/cl.2011.1443Electronic Supporting
Information
1445 Synthesis of Aromatic Polyketones
Bearing1,1¤-Binaphthyl-2,2¤-dioxy Units throughSuzukiMiyaura
Coupling Polymerization
(S)-1
HO
O
FI
K2CO3
DMF, 150 °C, 24 h
2A(p-I)2B(m-I)
O O
OO
II
φBO
O O
O
10 mol% Pd(OAc)220 mol% PPh3Bu4NOAcK2CO3MS4A
dioxane, 100 °C, 1 h
O O
OO
φ
n
3m,3p
4Am, 4Ap, 4Bm, 4Bp
MeO
OMe
MeO
OMe
3m
φ:
B
3p
OH
Katsuya Maeyama,* Tadashi Tsukamoto,Masanori Suzuki, Shuhei
Higashibayashi, andHidehiro
Sakuraidoi:10.1246/cl.2011.1445Electronic Supporting
Information
Chemistry Letters Vol.40, No.12 (2011)C-134
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1434http://dx.doi.org/10.1246/cl.2011.1437http://dx.doi.org/10.1246/cl.2011.1440http://dx.doi.org/10.1246/cl.2011.1443http://dx.doi.org/10.1246/cl.2011.1445http://www.csj.jp/journals/chem-lett/
-
1447 Synthesis of Co-oligomers of ThiopheneDerivatives from
Oligoynes via Zircona-cyclopentadiene
ZrCp Cp
T TZr
Cp Cp
TTT TX
T TX
TTT TX: C=C or S
"[Cp2Zr]"
TT TTTTS
T:
Debabrata Payra, Zhiyi Song, Ken-ichiroKanno, and Tamotsu
Takahashi*doi:10.1246/cl.2011.1447Electronic Supporting
Information
1450 Cross Coupling on Gold Nanoparticles.Effect of Reinforced
Affinity of OrganicGroup with Bipedal Thiol
S
S(CH2)11O Aryl
S
S(CH2)11O I
Aryl(RO)2B
[Pd(t -Bu3P)2]
K2CO3(aq)rt to 60 °C
Au Au
bipedal thiol-cappedgold nanoparticle
no aggregationAtsushi Sugie, Kenta Kumazawa, TomomiHatta,
Kiyoshi Kanie, Atsushi Muramatsu, andAtsunori
Mori*doi:10.1246/cl.2011.1450Electronic Supporting Information
1453 Diaryl Ketone Synthesis by [RuHCl(CO)-(PPh3)3]-catalyzed
Coupling Reaction ofArylboronic Acids with Aryl Aldehydes
+Ar2H
O
Ar2
O[RuHCl(CO)(PPh3) ]3B(OH)2Ar1
Ar1
Takahide Fukuyama,* Hiromi Okamoto, andIlhyong
Ryu*doi:10.1246/cl.2011.1453
1456 Protonation-induced Cyclization of
1,8-Bis(arylethynyl)anthraquinones: Monopyry-lium Salt Formation
and Intensification ofDonorAcceptor Interaction
Koya Prabhakara Rao, Mio Kondo, RyotaSakamoto, Tetsuro Kusamoto,
Shoko Kume,and Hiroshi Nishihara*doi:10.1246/cl.2011.1456Electronic
Supporting Information
1459 A Forgotten Olefin: A Convenient One-potCascade Reaction
Involving SuzukiMiyaura and MizorokiHeck Couplings toForm
(E)-1,2-Di(pyren-1-yl)ethylene
BO
O
HH
H
R
Br
R
HH
R
R0.5 equiv
Grubbs 2ndgeneration catalyst
Ken-ichi Yamashita, Keisuke Kimura, ShinTazawa, Motoko S. Asano,
and Ken-ichiSugiura*doi:10.1246/cl.2011.1459Electronic Supporting
Information
Chemistry Letters Vol.40, No.12 (2011) C-135
http://www.csj.jp/journals/chem-lett/Copyright © 2011 The
Chemical Society of Japan
http://dx.doi.org/10.1246/cl.2011.1447http://dx.doi.org/10.1246/cl.2011.1450http://dx.doi.org/10.1246/cl.2011.1453http://dx.doi.org/10.1246/cl.2011.1456http://dx.doi.org/10.1246/cl.2011.1459http://www.csj.jp/journals/chem-lett/