bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adsorption and Dimer Formation of Nitrogen Monoxide on Pt(111) at Low Temperature
Authors: Yoshinobu Jun , Kawai Maki 
Published: March 2006

Abstract
Adsorption and thermal reaction of NO on Pt(111) at temperatures from 25 K to 80 K have been studied by means of infrared reflection absorption spectroscopy. The physisorbed NO molecules from (NO)2 species on the chemisorbed NO at low temperatures. There are at least two kinds of (NO)2 species. The dimer species are decomposed into NO, which immediately desorbs above ∼40 K. The remaining predominant species after 80 K heating is on-top linear NO species.
Dimeric Hydrogen-Bonded Transition Metal Complex Containing Bidentate Mono-deprotonated 2,2′-Biimidazolate Ligand
Authors: Tadokoro Makoto , Toyoda Jiro , Isobe Kiyoshi , Itoh Tetsuji , Miyazaki Akira , Enoki Toshiaki , Nakasuji Kazuhiro 
Published: March 2006

Abstract
Synthesis and X-ray crystal structure of a capped type of dimeric H-bonded transition metal complex containing bidentate mono-deprotonated 2,2′-biimidazolate ligand were reported.
A Novel Synthesis of Isoindoline and Isoquinoline Using Chromium Carbene Complex
Authors: Mori Miwako , Kuriyama Kayoko , Ochifuji Nagisa , Watanuki Susumu 
Published: March 2006

Abstract
The reaction of diyne 1 which has nitrogen in a tether with chromium carbene complex 2 afforded isoindoline 4 in good yield. In this reaction, the two carbene carbons (carbene carbon of chromium carbene complex and carbon monoxide) reacted with the two alkynes, respectively, to form an aromatic ring, that is, [2+2+1+1] cocyclization. Using this procedure, isoquinoline derivatives, 6a, 7a, and 9a, were synthesized.
Electronic and Steric Effect of Bulky Triphenylsilyl Substituent in the Monooxobenzenedithiolatomolybdenum(V) Complex and the Tungsten Analog as Models of Molybdenum and Tungsten Oxidoreductases
Authors: Oku Hiroyuki , Ueyama Norikazu , Nakamura Akira 
Published: March 2006

Abstract
Monooxotungsten(V) and Monooxomolybdenum(V) complexes with bulky dithiolato ligands, (NEt4)[MVO(Ph3Si-bdt)2] (M = W (1) and Mo(2), Ph3Si-bdt = 3-triphenylsilyl-1,2-benzenedithiolate) were synthesized as models of tungsten and molybdenum oxidoreductases.
Reaction of Alkyne Having Hydroxyphenyl Group with Mo(CO)6
Authors: Kaneta Naotake , Hirai Tomoe , Mori Miwako 
Published: March 2006

Abstract
The reaction of m-and p-hydroxyphenylpropyne, 1a and 1b, with Mo(CO)6 (5 mol%) affords metathesis products, 2a and 2b, in 78% and 14% (conversion yield, 78%) yields, respectively. However, o-hydroxyphenylpropyne 1f gave trimerization product 4 in 65% yield.
New and Efficient Synthesis of Oligomeric Porphyrins via Stepwise Nucleophilic Substitution of Aminoporphyrins to Cyanuric Chloride
Authors: Ichihara Kanako , Naruta Yoshinori 
Published: March 2006

Abstract
Porphyrin oligomers (Pn, n = 2, 3, 4, 5) were prepared by the nucleophilic substitution of amino porphyrin monomers to cyanuric chloride. In this method, two different porphyrins can be joined stepwise to 1,3,5-triazine ring in one-pot by choosing appropriate reaction temperatures. The reaction proceeded under relatively mild conditions (K2CO3 as a base, 61 °C) and in good yields (ca. 80%).
Electronic Spectra of Si Nanocolloids in 2-Propanol
Authors: Zhu Yong , Kimura Keisaku 
Published: March 2006

Abstract
The ultraviolet (UV) and visible spectra of Si nanocolloids in 2-propanol were measured. In UV region, we have found, for the first time, the electronic transition at about 3.5 eV being superimposed by fine structures. The fine structures with the energy spacing around 1000 cm−1 can be related to IR absorption spectra which are assigned to Si-O-Si stretching vibration.
The Rate Constant of Dimer Cation Formation of Triphenylamine and Substituent Effects
Authors: Sumiyoshi Takashi 
Published: March 2006

Abstract
The pulse radiolysis studies of triphenylamine and methyl substituted triphenylamines in 1,2-dichloroethane have indicated that the dimer cation formation is the main process and coupling at the para sites is predominant. The spectrum of transient dimer cations with λmax at 400 and 850 nm, and the dimerization rate constant of k = 1.3 × 108 dm3 mol−1 s−1 were obtained.
Room-Temperature Photoluminescence of a C60 Derivative
Authors: Zhou Dejian , Tan Haisong , Gan Liangbing , Luo Chuping , Huang Chunhui , Yao Guangqing , Zhang Pei 
Published: March 2006

Abstract
The first observations of weak room-temperature photoluminescence of a new C60 derivative: C60(NH(CHCOOMe)2) (1) and its fluorescence quenching by concentration and N,N-dimethyl aniline in CHCl3 solution are reported. Its singlet energy and fluorescence lifetime were estimated to be 40.9 kcal/mol and 1.2 ± 0.3 ns, respectively.
Superstructure Formation of a Synthetic Lipid Bearing a Poly(ethylene glycol) Head Group with α-Cyclodextrin
Authors: Nakashima Naotoshi , Narikiyo Yoshitaka 
Published: March 2006

Abstract
Mixing of an aqueous bilayer of an artificial nonionic lipid bearing a poly(ethylene glycol) as the hydrophilic head group with α-cyclodextrin(α-CD) was found to produce a stable crystalline inclusion complex which possessed the fundamental bilayer characteristic (phase transition) for the first time. 1H-NMR spectra of the complex showed that 2.2 ± 0.1 ethylene glycol units in the lipid were captured in one α-CD molecule.
A Porphyrin-Anchored Ultrathin Poly(vinylchloride) Film: Asymmetric Surface Property as Revealed by Interactions with 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone
Authors: Yamada Sunao , Iida Hiroshi , Matsuo Taku 
Published: March 2006

Abstract
An ultrathin poly(vinylchloride) film incorporating amphiphilic 5,10,15,20-tetrakis(4-N-hexadecylpyridyl)porphine at the surface was prepared. Asymmetric surface population of the porphyrin was confirmed by investigating interactions with 2,3-dichloro-4,5-dicyanobenzoquinone in aqueous solutions, using absorption, fluorescence, and in-situ second harmonic generation spectroscopy.
Electrochemical STM Study on Surface Morphology Change of HOPG Basal Plane in an Organic Electrolyte Solution
Authors: Inaba Minoru , Siroma Zyun , Ogumi Zempachi , Abe Takeshi , Mizutani Yasuo , Asano Mitsuru 
Published: March 2006

Abstract
To elucidate the mechanism of surface reactions on graphite anodes of lithium-ion secondary batteries, the morphology change of the basal plane of a highly oriented pyrolytic graphite (HOPG) anode in 1 M LiClO4/ethylene carbonate-diethylcarbonate (1:1 by volume) was observed by electrochemical STM. When the sample potential was stepped to 1.1 V vs. Li/Li+, hill-like structures of ca. 10 Å height appeared on the HOPG surface. The hill-like structure in the vicinity of a step was gradually spread out with time, and a part of it exfoliated. It was considered that the intercalation of solvent is responsible for the formation of the hill-like structure and that this process corresponds to the initial stage of solvent decomposition and subsequent film formation processes.
Time Dependent Electroluminescence Spectra at n-type Porous Silicon/Electrolyte Solution Interface Induced by Hole Injection
Authors: Uosaki Kohei , Noguchi Hidenori , Murakoshi Kei , Kondo Toshihiro 
Published: March 2006

Abstract
Visible electroluminescence (EL) from n-type porous silicon (PS) in an electrolyte solution containing S2O82− was investigated by potential step methods. When the potential was stepped from 0 V to a negative potential (&lt; −1.5 V), EL intensity increased as time proceeded. Time-resolved EL spectra measurements showed that the increase of the EL intensity was accompanied by a blue-shift of the EL spectra and that more negative the applied potential, the faster the rate of blue-shift. These results and the relationship between the emission energy and the size of the Si crystallites in PS due to quantum size effect, suggest that the emission site changed from larger sized Si crystallites to smaller sized ones in the PS layer with time.
Hetero-Ligand Assembly onto Cobalt(III) Complexes
Authors: Yamanari Kazuaki , Kida Makiko , Fujihara Takashi , Fuyuhiro Akira , Kaizaki Sumio 
Published: March 2006

Abstract
Novel cobalt(III) complexes with two kinds of dimerized ligands dapymt-tbba(2-) and tbba-dapymt(1-) are obtained from the mixed system containing Hdapymt and H3tbba ligands (Hdapymt = 4,6-diamino-2-thiouracil and H3tbba = thiobarbituric acid).
C-Glycosylation-Cycloaddition Approach to C-Glycosyl Juglones. Versatile Intermediates toward Aryl C-Glycoside Antibiotics
Authors: Matsumoto Takashi , Sohma Tsukasa , Yamaguchi Hiroki , Suzuki Keisuke 
Published: March 2006

Abstract
An efficient two-step access to C-glycosyl juglones, promising synthetic intermediates toward aryl C-glycoside antibiotics, has been developed based on (1) the O → C-glycoside rearrangement and (2) the regioselective cycloaddition of α-alkoxybenzyne and α-oxyfuran.
Catalytic Addition of Olefinic C–H Bonds to Olefins
Authors: Kakiuchi Fumitoshi , Tanaka Yasuo , Sato Taisuke , Chatani Naoto , Murai Shinji 
Published: March 2006

Abstract
Addition of C–H bonds in α,β-enones to olefins were attained by Ru(H)2(CO)(PPh3)3 catalyst. The reactions of acylated heterocyclic olefins with triethoxyvinylsilane in the presence of the ruthenium catalyst afforded the coupling product in good to excellent yields. The reactions of 3,4-dihydro-6-pivaloyl-2H-pyran with several olefins were also catalyzed by the ruthenium complex to give the corresponding coupling products.
Multi-site Recognition of Flavin Adenine Dinucleotide by Mixed Monolayers on Water
Authors: Taguchi Kazuhiro , Ariga Katsuhiko , Kunitake Toyoki 
Published: March 2006

Abstract
Flavin adenine dinucleotide (FAD) formed a stoichiometric complex at the air-water interface with four molecules of a three-component monolayer that contain guanidinium, diaminotriazine, and orotate head groups. The complementary complexation was confirmed by surface pressure-area isotherm and IR and XPS spectroscopies of the transferred film.
Nomenclature of [60]Fullerene Derivatives by Edge Labeling
Authors: Nakamura Yosuke , Taki Masumi , Nishimura Jun 
Published: March 2006

Abstract
A new nomenclature of [60]fullerene derivatives or adducts is proposed. It can express most derivatives to image their stereochemical properties. Moreover, it can name racemates rather concisely.
New Synthetic Approaches to 1,2,4,5,7-Pentoxocane Derivatives
Authors: Ushigoe Yoshihiro , Nojima Masatomo , McCullough Kevin J 
Published: March 2006

Abstract
Formaldehyde O-oxide reacts with α-alkoxy-α′-hydroperoxy ethers to produce the corresponding adducts which can be cyclized under acidic conditions to yield the novel 1,2,4,5,7-pentoxocane derivatives 4a-c and 8. The structure of the crystalline 1,2,4,5,7-pentoxocane 8 was determined by X-ray crystallographic analysis.
Stabilization of Insulin upon Supramolecular Complexation with Hydrophobized Polysaccharide Nanoparticle
Authors: Akiyoshi Kazunari , Nishikawa Takehiro , Shichibe Syozo , Sunamoto Junzo 
Published: March 2006

Abstract
The hydrogel nanoparticle that was formed by self-assembly of cholesterol-bearing pullulan complexed with 5 - 10 insulin monomers in water. Biocolloidal and thermal stability of insulin drastically increased upon the supramolecular assembly with the hydrophobized polysaccharide.
Synthesis of 2-exo-Methylenepenam by Reductive 1,2-Elimination and S–S Bond Fission in a PbBr2/Al Bimetal System
Authors: Tanaka Hideo , Nishioka Youichi , Kameyama Yutaka , Sumida Shin-ichi , Matsuura Hiroyuki , Torii Sigeru 
Published: March 2006

Abstract
A convenient synthesis of 2-exo-methylenepenam was performed by reductive elimination of a 3,4-disubstituted chlorine atom(s) and/or a triflate moiety and S-S bond fission of the phenylsulfonylthio group of p-methoxybenzyl 3,4-dichloro or 4-chloro-3-(trifluoromethylsulfonyloxy)-2-[4-(phenylsulfonylthio)-2-oxoazetidin-1-yl]-2-butenoate derived from penicillin G in a lead(II) bromide/aluminum bimetal redox system.
Negative Photochromism of 3,1′-Trimethylene-Bridged 6-Nitroindolinospiropyran
Authors: Yokoyama Yasushi , Shiroyama Taisuke 
Published: March 2006

Abstract
A new photochromic nitroindolinospiropyran with a 3,1′-trimethylene bridge was synthesized. Different from the non-bridged spiropyrans it exists mainly as the colored twitter-ionic open form in polar solvents. The following values in CHCl3, DMSO, and CH3OH at 20 °C were determined: (1) molar absorption coefficient of the open form at λmax, (2) Arrhenius’ activation energy, ΔG‡, ΔH‡, and ΔS‡ of thermal coloring and bleaching, (3) ΔG, ΔH, and ΔS of the thermal coloring.
EXAFS/FTIR Characterization and Selective Hydration of Acetonitrile on Silica-Supported [(RhCp*)4V6O19]
Authors: Yamaguchi Masatsugu , Shido Takafumi , Ohtani Hiroko , Isobe Kiyoshi , Ichikawa Masaru 
Published: March 2006

Abstract
Silica-supported [(RhCp*)4V6O19] exhibited high catalytic activities in the gas-phase hydration of acetonitrile towards acetamide at 350-473 K with selectivity of over 97% and dehydrogenation of 2-propanol to acetone. EXAFS, XPS and FTIR studies suggested that thermal evacuation of silica-supported [(RhCp*)4V6O19] at 473 K led to the removal of the bridged oxygen atoms in the V6O19 framework. The resulting deoxygenated samples enhanced the acetonitrile hydration, while catalyzed the dehydration of 2-propanol to propene besides the dehydrogenation reaction, probably owing to the newly generated Lewis acid site.
Molecular Structure of Seven-Coordinate trans(O
6)-(Ethylenediamine-N,N′-diacetato-N,N′-di-3-propionato)(aqua)titanate(III), trans(O
6)-[Ti(eddadp)(H2O)]−
Authors: Miyoshi Katsuhiko , Wang Jun , Mizuta Tsutomu 
Published: March 2006

Abstract
X-ray crystal analysis revealed that the title complex anion has an approximately pentagonal-bipyramidal (PB) structure in which a water molecule and two five-membered glycine chelates lie in an equatorial plane and two propionate groups occupy trans-axial sites. This complex anion is the unprecedented seven-coordinate eddadp complex which moreover has a trans(O6) structure.
Time-Resolved FT-IR Study on Isotopic Exchange of Dinitrosyl Species Strongly Adsorbed on a Co-MFI Zeolite
Authors: Iwamoto Masakazu , Hoshino Yasuyuki 
Published: March 2006

Abstract
Very rapid exchange of NO molecules between the strongly adsorbed dinitrosyl species and NO in gas phase has been found at room temperature on a Co-MFI zeolite. The formation of (14NO)(15NO) species during the reaction indicates that the NO ligands are exchanged one by one.
Control of an α-Chymotrypsin Hydrolytic Activity by a Combination of Phenylboronic Acids and Polyols
Authors: Suenaga Hikaru , Nakashima Kazuaki , Mikami Masafumi , Shinkai Seiji 
Published: March 2006

Abstract
The hydrolytic activity of α-chymotrypsin is inhibited by phenylboronic acids. It was shown that the inhibitory effect is intensified by added diols but rather weakened (i.e., the hydrolytic activity is regenerated) by tripodal additives. Hence, the activity can be controlled in a range of 0–100%. This is a novel method to control the activity of the nucleophilic hydrolytic enzymes.
Highly Syn π-Facial Preference in the Diels-Alder Reactions of 1,2,3,4,5-Pentamethylcyclopentadienes Having Carboxy, Ethoxycarbonyl, and Cyano Substituents at 5-Positions
Authors: Ishida Masaru , Tomohiro Shingo , Shimizu Minako , Inagaki Satoshi 
Published: March 2006

Abstract
Diels-Alder reactions of 1,2,3,4,5-pentamethylcyclopentadienes having carboxy, alkoxycarbonyl, and cyano substituents at 5-positions with N-phenylmaleimide preferentially afforded the corresponding syn-attack products with the ratio of syn/anti = 80 : 20 to 100 : 0, while the diene having 5-hydroxymethyl moiety gave the anti-attack product exclusively.
One-Dimensional Ferrimagnetic Chains with Weak Ferromagnetic Interchain Interaction in a 1 : 1 Manganese(II) Bis(hexafluoroacetylacetonate) Complex with Bis[3-tert-butyl-5-(N-oxy-tert-butylamino)phenyl] Nitroxide
Authors: Inoue Katsuya , Hayamizu Takashi , Iwamura Hiizu 
Published: March 2006

Abstract
Black block crystals of [Mn(hfac)2•1]n obtained from a solution of anhydrous manganese(II) bis(hexafluoroacetylacetonate) {Mn(hfac)2} and bis[3-tert-butyl-5-(N-oxy-tert-butylamino)-phenyl] nitroxide (1) in n-hexane/ether were found to have a one-dimensional chain structure by the coordination of the terminal nitroxide groups of 1 with two different Mn ions and undergo a transition into a spin-ordered state at 11 K.
In Situ Conductivity Measurements during Lithium Intercalation/Deintercalation on V2O5 Thin Film by Using Interdigitated Microarray Electrodes
Authors: Shibuya Mashio , Yamamura Satoru , Matsue Tomokazu , Uchida Isamu 
Published: March 2006

Abstract
The conductivity change of a vacuum deposited V2O5 thin film during lithium intercalation/deintercalation was investigated using an interdigitated microarray electrode. The conductivity-potential profile showed two peaks (ca. 1.7 × 10−3 S cm−1) at 3.23 V and 3.41 V vs. Li/Li+, corresponding to the peaks in the cyclic voltammogram for Li intercalation/deintercalation. The conductivity decreased below 10−5 S cm−1 when the potential was scanned to the region more negative than 3.0 V vs. Li/Li+ and an irreversible conductivity change was observed when the potential was scanned back.
Synthesis and Complexing Behavior of a New Fluorescent Ligand Using Interaction between Two Substituents
Authors: Tahara Ruriko , Hasebe Kiyoshi , Nakamura Hiroshi 
Published: March 2006

Abstract
A fluorescent reagent (1) which has an electron donor and an acceptor at each terminal of linear polyether chain was synthesized, and the complexation behavior of 1 with alkaline earth metal ions was investigated. Quenching of the fluorescence spectrum and changes of 1H-NMR spectrum at the complexation with the metal ions showed the interaction between two moieties in both excited state and ground state.
Control of Size of CdS Formed in Organized Molecular Assembly Films by Molecular Structure and Film Orderliness
Authors: Moriguchi Isamu , Shibata Futoshi , Teraoka Yasutake , Kagawa Shuichi 
Published: March 2006

Abstract
The size of quantized CdS formed in Langmuir-Blodgett (LB) films was precisely controlled by the occupied molecular area of amphiphile and the repetition number of the sulfidation-intercalation cycle, because the concentration of Cd2+ ions introduced in the hydrophilic interlayers was determined by these two factors. The size of CdS formed in the bilayer film was fairly larger than that in corresponding LB film, showing the influence of the orderliness of the matrix film on the formation of CdS in the hydrophilic interlayers.
An Enantioselective Synthesis of (11R,12S,13S,9Z,15Z)-9,12,13-Trihydroxyoctadeca-9,15-dienoic Acid, a Self-defensive Substance against Rice Blast Disease
Authors: Hatakeyama Susumi , Kojima Kennichiro , Fukuyama Hiroko , Irie Hiroshi 
Published: March 2006

Abstract
(11R,12S,13S,9Z,15Z)-9,12,13-Trihydroxyoctadeca-9,15-dienoic acid, a self-defensive substance against rice blast disease, has been synthesized in an enantiomerically pure form in 8% overall yield from (2E,5E)-1,2-dibenzyloxy-2,5-heptadien-4-ol.
Preparation and Characterization of Vanadyl Hydrogen Phosphate Hydrates; VO(HPO4)·1.5H2O and VO(HPO4)·0.5H2O
Authors: Matsuura Ikuya , Ishimura Tomohiro , Kimura Naomasa 
Published: March 2006

Abstract
A new phase of vanadyl(IV) hydrogen phosphate sesquihydrate, VO(HPO4)·1.5H2O, has been obtained by the reduction of VOPO4·2H2O with 1-butanol. The unit cell is the orthorhombic system with lattice constants a = 7.43 Å, b = 9.62 Å, and c = 7.97 Å. in space group Pmmn.
Novel Electron Donors for Organic Conductors. Benzo[c]thiophene-Extended Analogues of Methylene-, Ethylene-, and Propylenedithiotetrathiafulvalene
Authors: Takahashi Kazuko , Ise Toshihiro 
Published: March 2006

Abstract
Three alkylenedithio derivatives of 1,3-bis(1,3-dithiol-2-ylidene)-1,3-dihydrobenzo[c]thiophene (BDTBT) have been synthesized. These donors exhibited an electron-donating ability near to that of tetrathiafulvalene and afforded a very stable radical cation. The powdered tetracyanoquinodimethane complex of the methylenedithio derivative exhibited a fairly high room temperature conductivity of σ = 15 Scm−1 and a semiconducting behavior with a very low activation energy of Ea = 0.050 eV.
The Copper(I) Iodide-promoted Allylation of Vinylstannanes with Allylic Halides
Authors: Takeda Takeshi , Matsunaga Ko-ichi , Kabasawa Yuki , Fujiwara Tooru 
Published: March 2006

Abstract
The stereospecific allylation of vinylstannanes with allylic halides proceeded in the presence of copper(I) iodide in DMSO-THF at room temperature. The stereospecificity of the reaction was dependent on the structures of vinylstannanes and allylic halides, and also the leaving group of allylic halides employed. Concerning the regioselectivity regarding allylic system, higher α-regioselection was observed in the reactions of allylic chlorides than in those of the corresponding iodides.
Effect of Various Fluoride Atom Species of Activated Carbon in CF4 Plasma on Recovery of Trichloroethylene
Authors: Tanada Seiki , Nakamura Takeo , Kawasaki Naohito , Iwaki Akifumi , Torii Yasuhiro 
Published: March 2006

Abstract
The surface modification of activated carbon using low temperature plasma of tetrafluoromethane was investigated to evaluate the removal of trichloroethylene. The plasma-treated, activated carbon underwent an immersion water and/or heat-treatment. The adsorption isotherms of trichloroethylene onto the activated carbons were measured to elucidate the relationship between the adsorption behavior of trichloroethylene and the introduced fluoride atoms. The trichloroethylene adsorption sites on plasma-treated, activated carbon are related to the fluoride atom species of the adsorption type, that is, the ion type.
Determination of Association Constants for Cyclodextrin Inclusion Complexation by Pulse Radiolysis
Authors: Yamamoto Yukio , Naka Yukihiko , Yoshida Yoichi , Tagawa Seiichi 
Published: March 2006

Abstract
The association constants for the inclusion complexation of 4-biphenylcarboxylate and its analogs with β-cyclodextrin are determined by a pulse radiolysis method for the kinetic analysis of the one-electron reduction by the hydrated electron.
Determination of Dissolved Oxygen in Water Samples Using Capillary Electrophoresis
Authors: Razee Saeid , Tamura Atsushi , Masujima Tsutomu 
Published: March 2006

Abstract
Capillary electrophoresis was successfully applied for the determination of a gaseous analyte of interest i.e., dissolved oxygen in water samples, for the first time. Each analysis was performed within 5 min and as low as 50 ppb dissolved oxygen can be determined by this method. The proposed method was successfully applied for the analysis of river water. The method is versatile for analysis of miniaturized samples and studies of reaction kinetics.
An Asymmetric Synthesis of the Fully Functionalized AB Ring System of 12-Demethyltaxol via Successive Stereoselective Allylation and Intramolecular Aldol Reactions
Authors: Shiina Isamu , Iwadare Hayato , Saitoh Masahiro , Ohkawa Naoto , Nishimura Toshihiro , Mukaiyama Teruaki 
Published: March 2006

Abstract
Optically active 9-t-butyldiphenylsiloxy-11,11-dimethyl-5-methoxymethoxy-1,2,6-tribenzyloxybicyclo[5.3.1]undec-3,7-diene (12) was synthesized from diketone 9 via an intramolecular aldol reaction. The diketone 9 was synthesized from 7-t-butyldimethylsiloxy-4,8-dibenzyloxy-6,6-dimethyl-5-p-methoxy-benzyloxy-2-cycloocten-1-one (1) by way of a two-step sequence using diastereoselective allylation with allylmagnesium bromide followed by Wacker oxidation.
Homocereulide, an Extremely Potent Cytotoxic Depsipeptide from the Marine Bacterium Bacillus cereus
Authors: Wang Gui-Yang-Sheng , Kuramoto Makoto , Yamada Kaoru , Yazawa Kazunaga , Uemura Daisuke 
Published: March 2006

Abstract
Homocereulide (1) and cereulide (2), isolated from the marine bacterium Bacillus cereus SCRC, showed extremely potent cytotoxicity. Their structures were elucidated by spectroscopic analysis and chemical degradation.