bluuebunny/crossref_metadata_2025_split huggingface dataset:
The First Synthesis and Properties of 2,3-Di-t-butylthiophene. Reaction of 3,4-Di-t-butyl-1,2-dithiete with Dimethyl Acetylenedicarboxylate
Authors: Nakayama Juzo , Choi Keun Soo , Ishii Akihiko , Hoshino Masamatsu 
Published: July 2006

Abstract
Heating 3,4-di-t-butyl-1,2-dithiete (5) with dimethyl acetylenedicarboxylate (5 equiv) in refluxing o-dichlorobenzene affords dimethyl 2,5-di-t-butyl-3,4-thiophenedicarboxylate (6) (44%), dimethyl 2,3-di-t-butyl-4,5-thiophenedicarboxylate (7) (5%), tetramethyl 1,4-dithiin-2,3,5,6-tetracarboxylate (8) (4%), and tetramethyl 2,3,4,5-thiophenetetracarboxylate (9) (43%). Mechanism of the formation of these products is discussed. Treatment of the hindered ester 7 with lithium 1-propanethiolate affords 2,3-di-t-butyl-4,5-thiophenedicarboxylic acid (13) in 59% yield, which can be decarboxylated by treatment with copper powder to give 2,3-di-t-butylthiophene (4) in 88% yield. The thiophene 4 rearranges to 2,4-di-t-butylthiophene (1) on treatment with aluminum chloride. Oxidation with m-CPBA affords the corresponding sulfone (23). Electrophilic substitutions (bromination and nitration) of 4 occur exclusively at the less hindered and more electronically favored 5-position.
Dielectric Relaxation and Intermolecular Association of Alicyclic Alcohols in Liquid and Solid States
Authors: Shinomiya Toshiomi 
Published: July 2006

Abstract
The dielectric constants and losses of cyclopentanol (CPEN), cyclohexanol (CHEX), cycloheptanol (CHEP), and cyclooctanol (COCT) have been measured at frequencies from 1.35 to 4500 MHz over a temperature range of 10–35°C. The absorption could be resolved into three Debye-like dispersion regions in liquid and solid states. The relaxation time of the first, low-frequency, dispersion region and viscosity for CHEX are slightly larger than those for CHEP. This observation can be connected with differences of the molecular geometry between a chair and a twisted chair form and an interconversion between an equatorial and an axial form. Upon solidification, the magnitude of the first dispersion region decreases from 12.67 in the liquid state to 10.25 in the solid state for CHEX and increases from 8.77 to 9.35 for COCT. A transformation from a linear chain polymer into a nonpolar cyclic polymer for CHEX and from a linear chain polymer into a chain dimer and trimer for COCT, occurs mainly upon solidification. The free energies of activation in the solid state are 26 kJ mol−1 for the first region, 23 kJ mol−1 for the second region, and 17 kJ mol−1 for the third region and are larger than those in the liquid state, respectively.
An Equilibrium Model of the Self-Association of 1- and 3-Pentanols in Heptane
Authors: Shinomiya Kazuko , Shinomiya Toshiomi 
Published: July 2006

Abstract
The near-IR spectra in the first overtone of the OH stretching vibrational range have been measured over all the alcohol concentrations from 0.002 mol dm−3 to neat pentanol at 25 and 35°C. The spectra were best fitted by a monomer–dimer model at concentrations below 0.025 mol dm−3, by a monomer–dimer–tetramer model in the concentration range of 0.025–0.35 mol dm−3, and by a monomer–dimer–tetramer–octamer model at concentrations above 0.35 mol dm−3. The dielectric constants and losses of pure 1- and 3-pentanols and heptane solutions of 1-decanol have been measured at frequencies from 1.35 to 4500 MHz at 15, 25, and 35°C. The dielectric absorption could be resolved into three Debye-like dispersion regions. The concentrations of a free monomer, a chain dimer and trimer, a linear chain polymer, and a nonpolar cyclic polymer have been obtained by applying a modified Kirkwood–Fröhlich equation. From a comparison of the near-IR results with the dielectric results, we can recognize at least the coexistence of a free monomer, a chain dimer, a nonpolar cyclic tetramer, and a linear chain octamer at higher concentrations of 1- and 3-pentanols in heptane at room temperature.
Dinuclear Cobalt(II) Complexes Containing 1,3-(or 1,5-)Bis[bis(2-pyridylmethyl)amino]-2-propanolato (or -3-pentanolato): Preparation and Reaction with Molecular Oxygen
Authors: Suzuki Masatatsu , Sugisawa Toshiharu , Uehara Akira 
Published: July 2006

Abstract
Two dinuclear cobalt(II,II) complexes, [Co2(tpdp)(CH3COO)](ClO4)2·0.5H2O (1) and [Co2(tmdp)(CH3COO)](ClO4)2·H2O (2), were prepared, where Htpdp and Htmdp are 1,3-bis[bis(2-pyridylmethyl)amino]-2-propanol and 1,5-bis[bis(2-pyridylmethyl)amino]-3-pentanol respectively. Their electronic spectral and magnetic data revealed that 1 and 2 are five-coordinate in the high-spin state, in the same manner as [Co2(bpmp)(CH3COO)]2+ (3) (Hbpmp=2,6-bis[bis(2-pyridylmethyl)aminomethyl]-4-methylphenol). The complexes reacted with molecular oxygen to form μ-peroxo complexes in dichloromethane and acetonitrile. The oxygen affinity of the complexes decreased in the order of 3&gt;2&gt;1. The relationships between the oxygen affinities and (1) the donor abilities of dinucleating ligands, (2) the energies of the charge-transfer bands (O22− to Co3+) of the μ-peroxo complexes, and (3) the redox potentials of the Co3+–O2−–Co3+/Co3+–O22−–Co3+ couple indicated that a steric effect arising from the dinucleating ligands contributes significantly to the oxygen affinities of the complexes.
Substituent Effects. XIX. Solvolysis of 1-Aryl-1-(trifluoromethyl)ethyl Tosylates
Authors: Murata Akihisa , Goto Mutsuo , Fujiyama Ryoji , Mishima Masaaki , Fujio Mizue , Tsuno Yuho 
Published: July 2006

Abstract
The rates of solvolysis of 1-aryl-1-(trifluoromethyl)ethyl tosylates were determined in 80% aqueous ethanol for a series of substituents. The Brown ρ+σ+ treatment fails to give a simple linear plot, but all the p-π-donors deviate upward from the meta-correlation line. On the other hand, the Yukawa–Tsuno LArSR Eq. gives a linear correlation over the whole range of substituents, log(k⁄k0)=−6.287(σ°+1.388Δ\barσR+), with excellent precision. Strong destabilization of the carbocation intermediate by α-CF3 appears to be reflected only in the extremely high r value, but not in the ρ value of the substituent effect. This conflicts seriously with the conclusion in the literature given for this reaction based on a simple Brown σ+ treatment. This reaction, having an extremely high resonance demand r=1.4, should be far beyond the scope of the simple Brown σ+ analysis. Varying resonance demand should be a basic requirement for adequately describing the substituent effect regarding conjugative carbocation reactions.
The Preparation of Poly(dihydroxyphenylene) through the Electro-Oxidative Polymerization of Hydroquinone
Authors: Yamamoto Kimihisa , Asada Toshio , Nishide Hiroyuki , Tsuchida Eishun 
Published: July 2006

Abstract
Hydroquinone is electro-oxidatively polymerized to poly(dihydroxyphenylene) on the Pt electrode, whose structure was confirmed by spectroscopic measurements. The polymerization proceeds via an oxidative and cationic mechanism. The poly(dihydroxyphenylene) thus formed is a Nernstian-type electro-active polymer (E°=0.7 V vs. Ag/AgCl in an acidic medium) and shows a redox reaction through two-electron transfer, accompanied by proton dissociation on the Pt electrode.
Activated Nitriles in Heterocyclic Synthesis. Novel Synthesis of 5-Imino-5H-[1]benzopyrano[3,4-c]pyridine-4(3H)-thiones and Their Oxo Analogues
Authors: Elgemeie Galal E H , Elghandour Ahmed H H 
Published: July 2006

Abstract
Various benzopyrano[3,4-c]pyridine-4(3H)-thione derivatives and their oxo analogues were prepared by condensation of cyanothioacetamide or cyanoacetamide and salicylaldehyde with ketones or activated nitriles in the presence of ammonium acetate.
The Determination of Film Resistance by Means of the Frequency at the Maximum Phase Angle and the Estimation of the Degradation of the Coating Film
Authors: Sekine Isao , Sakaguchi Kazuhiko , Yuasa Makoto 
Published: July 2006

Abstract
The determination of film resistance (Rf) was investigated by means of the frequency at the maximum phase angle (fθmax), as obtained from electrochemical impedance measurements. fθmax was linearly correlated with Rf. The degradation of the coating film was obviously and rapidly evaluated from fθmax by comparison with Rf.
Synthesis of Phenethylamines by Hydrogenation of β-Nitrostyrenes
Authors: Kohno Masahiko , Sasao Shigehiro , Murahashi Shun-Ichi 
Published: July 2006

Abstract
Catalytic hydrogenation of β-nitrostyrenes over palladium on charcoal in EtOH–HCl at low temperature gave the corresponding phenethylamines, which are precursors of 1,2,3,4-tetrahydroisoquinolines, in high yield.
Catalytic Epoxidation of Cyclooctene with Oxygen Using Electrochemically Reduced Metalloporphyrins
Authors: Ojima Fumihiro , Kobayashi Nagao , Osa Tetsuo 
Published: July 2006

Abstract
Epoxidation of cyclooctene with molecular oxygen was achieved using electrochemically reduced metalloporphyrins in N,N-dimethylformamide (DMF) containing acetic anhydride as an electrophile. Turnover numbers 5–7 based on moles of cyclooctene oxide produced per moles of porphyrin were obtained by the use of [5,10,15,20-tetrakis(pentafluorophenyl)porphinato]iron(III) chloride and [5,10,15,20-tetra(l-naphthyl)porphinato]manganese(III)chloride. The effects of central metals and substituents on phenyl groups of matalloporphyrins were also investigated. Rate constants (k) were estimated by way of digital simulation of cyclic voltammograms based on a simple ECE reaction mechanism. The reaction mechanism in the presence of cobalt(II) complexes seemed to be somewhat different from that in the presence of iron(III) or manganese(III) complexes.
A Novel Asymmetric Synthesis of Chiral Cyclopentanoid Building Blocks by the Use of Chiral Lithium Amide
Authors: Asami Masatoshi 
Published: July 2006

Abstract
Enantioselective deprotonation of meso-epoxides, derived from 3-cyclopenten-1-ol, was examined using chiral lithium amide. Chiral cis-4-t-butyldimethylsiloxy-2-cyclopenten-1-ol, cis-4-tetrahydropyranyloxy-2-cyclopenten-1-ol, and their trans-isomers, which are useful chiral building blocks for the synthesis of cyclopentanoid natural compounds, were obtained with high enantiomeric excesses (72–90% ee). Both (R)- and (S)-4-hydroxy-2-cyclopenten-1-one were derived from (1S,4R)-4-t-butyldimethylsiloxy-2-cyclopenten-1-ol stereospecifically.
The Thermal and Photochemical Behavior of the Cyclomers Derived from 1,1′-(1,3-Propanediyl)bis(pyridinyl) Diradicals
Authors: Muramatsu Takashi , Ikegami Yusaku , Hanaya Kaoru , Onodera Shinji 
Published: July 2006

Abstract
Reduction of 1,1′-(1,3-propanediyl)bis(pyridinium) dibromide (5a) with sodium amalgam afforded the meso- and dl-cyclomers formed by intramolecular cyclization of the diradical (2a). The meso-cyclomer (6a) was thermally converted into the dl-cyclomer (7a), while retroversion of 7a into 6a was achieved photochemically. Reduction of the 4,4′-dimethyl (5b) and 4,4′-di-t-butyl (5c) derivatives of 5a similarly afforded the corresponding meso-(6b and 6c) and dl-(7b and 7c) cyclomers, which can be interconverted to each other. Using NMR spectroscopy to follow the reaction the energies for thermal conversion of meso- to dl- cyclomers were found to be 58.6, 74.5, and 84.5 kJ mol−1 for 6a, 6b, and 6c, respectively. Photodissociation of the cyclomers at −196 °C gave the diradicals (2a–2c), which showed characteristic triplet ESR spectra. The ESR spectra for both 2a and 2b indicated that there were two conformations, each with different zero-field splitting parameters, in 2-methyltetrahydrofuran glass. In contrast, the ESR spectrum of 2c indicated that it has only one conformation. The 4,4′-bis(methoxycarbonyl) derivative (2d) of 2a also forms cyclomers which, upon photolysis, regenerate the diradical. It was concluded that 1,1′-(1,3-propanediyl)bis(pyridinyl) diradicals are substantially in thermal equilibrium with the cyclomers.
Heavy-Atom Effect on Decay Dynamics of Triplet-State Ion Pairs. Chloranil–Naphthalene (1:2) Termolecular Systems
Authors: Kobashi Harumichi , Suto Hiroshi , Shizuka Haruo 
Published: July 2006

Abstract
Decay kinetics of triplet-state ion pairs (3IPs) have been studied for the termolecular systems consisting of the chloranil anion radical (CA\ewdot) with the dimer cation radical of naphthalene (Np\underset.+) or its monohalogenated derivatives (NpX2\underset.+) in 1,2-dichloroethane by means of laser photolysis. Marked heavy-atom (HA) effect was found on back electron transfer (back ET) but not on ionic dissociation (ID). A small effect of 1- or 2-brominated compound on 3IP lifetimes was observed. Both back ET and ID processes of 3(CA\ewdot, Np2\underset.+) were found to be almost temperature-independent. Electron-transfer (ET) quenching of 3CA leading to produce the (1:1) 3IP was also independent on the HA substitution. For these kinetic studies, a conventional decay analysis was examined.
Kinetic Solvent Effects on K+/K(Hg)Electrodes in Some Dipolar Aprotic Solvent Systems by Cyclic Voltammetry
Authors: Bhattacharya Swapan K , Kundu Kiron K 
Published: July 2006

Abstract
The rate constants (skR) of K++e (Hg)\ightleftharpoonsK(Hg) in the dipolar aprotic solvents like propylene carbonate (PC), N, N-dimethylformamide (DMF), acetonitrile (AN), and their several binary mixtures have been determined at 25 °C on a hanging mercury drop electrode (HMDE) by cyclic voltammetric measurements. The observed nature of the cyclic voltammograms indicates that the reaction is quasi-reversible in the range of the sweep rates 1.0–0.01 V s−1. An insight to the composition profiles of the free energies of activation (ΔG≠) relative to that in the chosen reference solvent (r) in the respective solvent (s) systems: −δΔG≠(=RTln skR⁄rkR) reveals that not only the solvation of K+ but also that the transition state (TS) are responsible in dictating the rate constants. Also the solvation of TS is being guided by the dispersion interactions as well as the availability of the fraction of the free surfaces (1–θs) for varying adsorption of the solvent molecules on the electrodes, all relative to that of the respective reference solvents.
The Temperature Dependence of the Quenching Rate of the 307.6 nm Zinc Resonance Radiation by Methane and Cyclopropane
Authors: Yamamoto Shunzo 
Published: July 2006

Abstract
The quenching rate constants of Zn(3PJ) by methane and cyclopropane at various temperatures were determined on the basis of the Stern-Volmer plots. The activation energy for the quenching by methane was similar to that by cyclopropane. The frequency factor for the quenching-rate constant by cyclopropane was very large.
Acetylation of 2-C-Benzyl-l-lyxo-3-hexulosono-1,4-lactone
Authors: Kinoshita Takamasa , Yoshida Noritaka , Miwa Toshio 
Published: July 2006

Abstract
Acetylation of 2-C-benzyl-l-ascorbic acid afforded an unexpected enone, 2,6-di-O-acetyl-2-C-benzyl-5-deoxy-d-glycero-hex-4-en-3-ulosono-1,4-lactone (3) of the open form, along with 2,3,5-tri-O-acetyl-2-C-benzyl-l-lyxo-3-hexulosono-1,4-lactone (4) of the closed form.
Synthesis of Some Anhydro Derivatives of Dl-1-C-Hydroxymethyl-1,2,3,4,5,6-cyclohexanehexol
Authors: Ogawa Seiichiro , Urakawa Masaaki , Tonegawa Takeshi 
Published: July 2006

Abstract
Three stereoisomers of Dl-1-C-(hydroxymethyl) conduritol epoxides have been synthesized in order to investigate their inhibitory activity against certain glycosyl hydrolases.
The Epoxidation of C5–C10 Alkenes With Hydrogen Peroxide Catalysed by Mo Compounds in Two-phase Solvents
Authors: Kamiyama Tsutomu , Inoue Masami , Kashiwagi Hiroshi , Enomoto Saburo 
Published: July 2006

Abstract
The epoxidation of terminal alkenes such as 1-heptene, 1-octene, 1-decene, styrene (1), α-methylstyrene, and allyl chloride, and inner alkenes such as α-pinene, cyclopentene, cyclohexene (2) and cyclooctene was carried out with aqueous 60% hydrogen peroxide in the presence of molybdenum blue (Mob)-bis(tributyltin) oxide (3) using a two-phase solvent of chloroform-water at 25 °C. All these olefins gave epoxides in 98 to 48% yields. In the cases of 1 and 2, the addition of ammonia greatly increased the yields of epoxides; the yield reached 78% and 83%, respectively, after 7 h. Various kinds of amines and organotin compounds were examined as co-catalysts and their effects were discussed.
Fractal Pattern Formation of Metal-Containing Polymeric Thin Films Prepared by Plasma Reaction
Authors: Gong Jianping , Kagami Yoshiharu , Yamada Katsuyuki , Osada Yoshihito 
Published: July 2006

Abstract
Three kinds of metal-containing polymeric thin films were obtained from copper acetylacetonate (CuAA), titanium tetraisopropoxide (TiTP) and tetramethyltin (TMT) by plasma polymerization. The vaporized metal-organic compounds underwent chemical rearrangement under the action of energetic plasma to give higher ordered thin films consisting of metal and organic polymer layers. Transmission electron microscopy (TEM) photographs of the films consisting of alternative metal and organic regions showed fractal pattern. The fractal dimensions were calculated as 1.87 for CuAA, 1.94 for TiTP and 1.92 for TMT films, respectively. Formation process of fractal pattern was discussed in terms of chemical structure of starting compounds and plasma conditions.
Synthesis and Some Reactions of 2-(2-Aminoanilino)cyclohepta[b]pyrroles: Leading to 5H-Cyclohepta[1′,2′: 4,5]pyrrolo[2,3-b][1,5]benzodiazepine, a Novel 20π Antiaromatic System, and Cydohepta[1′,2′: 4,5] pyrrolo[1,2-a]benzimidazoles
Authors: Abe Noritaka , Ishikawa Naomi , Hayashi Takashi , Miura Yoshiaki 
Published: July 2006

Abstract
2-Chlorocyclohepta[b]pyrroles reacted with o-phenylenediamine to give 2-(2-aminoanilino)cyclohepta[b]pyrroles (2a,b) in good yields. Treatment of 2a and 2b with polyphosphoric acid afforded cyclohepta[1′,2′: 4,5]pyrrolo[1,2-a]benzimidazole (4a) in good yields. Treatment of 2b with acids gave 6-(ethoxycarbonyl) derivatives (4b) of 4a and 12H-5,13-dihydrocyclohepta[1′,2′: 4,5]pyrrolo[2,3-b][1,5]benzodiazepin-12-one (5). Compound 5 was methylated with methyl iodide in the presence of DBU to give 5H-12-methoxycyclohepta[1′,2′: 4,5]pyrrolo[2,3-b][1,5]benzodiazepine, a novel 20π antiaromatic system. Treatment of 2b with sodium ethoxide gave 4b and 2H-1-(cyclohepta[b]pyrrol-2-yl)-1,3-dihydrobenzimidazol-2-one (7a). Compound 5 rearranged to 7a in the refluxing sodium ethoxide-ethanol solution. Reactions of 2a and 2b with triethyl orthoformate gave corresponding 1-(cyclohepta[b]pyrrol-2-yl)benzimidazoles. Reactions of 2a and 2b with acetic anhydride are also mentioned.
Pressure-Accelerated Diels–Alder Reactions of Tropones with Aromatic p-Quinones
Authors: Mori Akira , Li Zhi-Hong , Nakashima Hisataka , Takeshita Hitoshi 
Published: July 2006

Abstract
The Diels–Alder reactions of tropones with aromatic p-quinones under 3000 and 10000 bar gave enolized 1:1-adducts together with dehydrogenated products, homobarrelenone derivatives. The latter were isomerized to tetracyclo[6.5.0.01,9.05,9]trideca-2,6,11-triene-4,10,13-triones on exposure to diffused light. No cycloadduct was obtained when the reaction was carried out under 1 bar.
Partial Molar Volumes in Aqueous Mixtures of Nonelectrolytes. IV. Aromatic Hydrocarbons
Authors: Sakurai Masao 
Published: July 2006

Abstract
The densities of binary mixtures of water with benzene, toluene, and ethylbenzene were measured for both ends of the concentration range at 5, 15, 25, 35, and 45 °C. The partial molar volumes were evaluated for both components by assuming a linear correlation of the density with the concentration. The partial molar volumes of the aromatic hydrocarbons (VA) in a water-rich region are smaller than the molar volumes of the respective solutes, but the temperature dependences of the VA are almost the same as the molar expansibilities of the solutes. On the other hand, the partial molar volumes of water (VW) and their temperature dependences in a hydrocarbon-rich region are appreciably larger compared with the molar volume and molar expansibility of pure water, respectively. The results are discussed on the basis of the scaled particle theory and interpreted in terms of the difference of the compressibilities of the solvents. The volumetric behavior of the aromatic hydrocarbons in aqueous solutions does not bear out any influence of a so-called iceberg structure.
Synthesis and Characterization of Polyyne Porphyrins
Authors: Maruyama Kazuhiro , Kawabata Shigeki 
Published: July 2006

Abstract
A series of conjugated polyyne porphyrins, in which two porphyrin macrocycles are connected with both ends of diarylpolyyne through aromatic ring, has been prepared and their spectroscopic behaviors were investigated. Diarylpolyyne consisting of aryl group and conjugated triple bond system have rigid and linear structure, and the two porphyrins are held at a fixed geometry and a determined distance. In their absorption spectra, porphyrin Soret bands were red- or blue-shifted depending on their edge-to-edge or face-to-face orientation.
Opioid Activities of Morphiceptin Analogs Derived from Human β-Casein
Authors: Sakaguchi Kazuyasu , Sakamoto Hiroshi , Tsubaki Yoshiko , Waki Michinori , Costa Tommaso , Shimohigashi Yasuyuki 
Published: July 2006

Abstract
Four tetrapeptide amides with the N-terminal Tyr–Pro sequence were synthesized as possible opioid agonists that can be produced by degradation of human β-casein. When these peptides were tested for their ability to bind to the μ and δ opioid receptors in rat brain, only H–Tyr–Pro–Phe–Val-NH2 was active, showing the 60% increased affinity for the μ receptors as compared with morphiceptin (H–Tyr–Pro–Phe–Pro–NH2) derived from bovine β-casein. It was highly μ-selective, as well as morphiceptin, with the μ/δ-selectivity ratio of 285. Other three analogs, H–Tyr–Pro–Ser–Phe–NH2, H–Tyr–Pro–Val–Arg–NH2 and H–Tyr–Pro–Val–Pro–NH2, were almost completely inactive. These results suggested that, for the morphiceptin-like tetrapeptide amides, the presence of Phe at position 3 is essential to elicit an activity to bind to the μ opioid receptors. Conformational considerations by measuring the CD spectra indicated that the sequence of tetrapeptide amide Tyr–Pro–Xxx–Pro(or Val)–NH2 is an important structural requirement to interact with the μ opioid receptors.
Synthetic Study on Peptide Antibiotic Nisin. IV. Synthesis of Ring D–E
Authors: Fukase Koichi , Oda Yoshiaki , Kubo Akira , Wakamiya Tateaki , Shiba Tetsuo 
Published: July 2006

Abstract
In the series of synthetic study on peptide antibiotic nisin, a bicyclic sulfide part ring D–E in this molecule was successfully synthesized. Conjunctive sulfide rings were constructed either by one step or stepwise desulfurization reaction from corresponding disulfides by use of hexaethylphosphorus triamide. Thus, all of the ring moieties in nisin were prepared for total synthesis of this antibiotic.
The Reaction of Three Sesquiterpene Ethers with m-Chloroperbenzoic Acid
Authors: Tori Motoo , Sono Masakazu , Asakawa Yoshinori 
Published: July 2006

Abstract
Three sesquiterpene ethers, guaioxide, a guaiane-type sesquiterpene ether (LB), and maalioxide have been subjected to reaction with m-chloroperbenzoic acid in chloroform under reflux. Guaioxide afforded four tertiary alcohols, while other two gave secondary alcohols. Structures of the products were determined by spectral data and chemical correlations.