bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Crystal and Molecular Structures of N-Phenyl-4-nitrobenzylamine, N-Phenyl-4-nitrophenethylamine, and N-Methyl-N-p-tolyl-4-nitrophenethylamine
Authors: Iwasaki Fujiko , Masuko Yoshiaki , Monma Sachiko , Watanabe Toshiya , Mutai Kiyoshi 
Published: July 2006

Abstract
The crystal and molecular structures of N-phenyl-4-nitrobenzylamine (1), N-phenyl-4-nitrophenethylamine (2), and N-methyl-N-p-tolyl-4-nitrophenethylamine (3) have been determined by the X-ray method. The crystals of 1 are monoclinic, P21/n, a=16.924(1), b=8.792(1), c=7.642(1) Å, β=91.59(1)°, V=1136.8(1) Å3, Z=4, Dx=1.334 Mg m−3. 2 is triclinic, P\bar1, a=15.106(1), b=9.573(1), c=9.427(1) Å, α=113.22(1), β=91.27(1), γ=83.61(1)°, V=1244.7(2) Å3, Z=4, Dx=1.293 Mg m−3. 3 is trigonal, P31, a=b=8.435(1), c=17.758(1) Å, α=β=90°, γ=120°, V=1094.2 Å3, Z=3, Dx=1.231 Mg m−3. The final R values are 0.064, 0.059, and 0.045 for 1625, 3606, and 1131 observed reflections of 1, 2, and 3, respectively. About the amino-methylene N–C bond the phenyl group is trans to C for the molecules of 1 and 2, while in 3 the phenyl group is gauche to C about the N–C bond. The nitrophenyl plane of 3 is stacked on the p-toluidino plane of the neighbouring molecule alternately with the mean distance of 3.40 Å. The presence of the intermolecular CT interaction of 3 has been confirmed by the electronic absorption spectra of these compounds in the solid state.
Dielectric Loss of Dehydrated Rb3Na8–ZK4 Zeolite
Authors: Ohgushi Tatsuo 
Published: July 2006

Abstract
The dielectric properties of completely dehydrated Rb3Na8–ZK4 zeolite were studied in the range 12–2.2×106 Hz and 211–705 K. Two kinds of losses, relaxation and conduction, were observed. The relaxation loss in the higher-frequency region had an activation energy of 99±2 kJ mol−1 and was tentatively assigned to a jump of the Rb+ ion from an 8-ring site to a vacant 4-ring site. The loss at the lower-frequency region had an activation energy of 95±3 kJ mol−1 and was attributed to a movement of the Rb+ ion on the 8-ring site beyond the unit-cell dimension.
Reflectance Spectra of the 1:1 Salts of Bis(methylenedithio)tetrathiafulvalene (BMDT-TTF): Estimation of the On-Site Coulomb Energy
Authors: Yoshitake Michiko , Yakushi Kyuya , Kuroda Haruo , Kobayashi Akiko , Kato Reizo , Kobayashi Hayao 
Published: July 2006

Abstract
Polarized reflectance spectra were measured on the single crystals of (BMDT-TTF)AsF6 and (BMDT-TTF)SbF6. The charge-transfer band was observed along the stacking direction in the crystals of (BMDT-TTF)AsF6, while in the crystal of (BMDT-TTF)SbF6 the charge-transfer band was found not only along the stacking direction but also along the S···S direction nearly parallel to the short axis of the BMDT-TTF molecule. The effective on-site Coulomb energies and the transfer integrals of these salts were estimated by analyzing the charge-transfer bands.
Effects of Compositional Changes of Hot Spring Water upon Mineral Precipitate. I. Changes in Chemical Composition and Crystal Growth Rate of Pb-Bearing Barite (Hokutolite) from Tamagawa Hot Spring Waters
Authors: Sasaki Nobuyuki , Watanuki Kunihiko 
Published: July 2006

Abstract
Changes in the chemical compositions of Tamagawa Hot Spring waters and Pb-bearing barite (hokutolite) were examined. Samples were obtained from various locations and various time in Tamagawa Hot Spring. The relationships between the hot spring waters and the minerals were expressed as partition equations and phenomenological equations; then, the partition coefficients and phenomenological coefficients were calculated. The apparent partition coefficients of Pb2+ and of Sr2+ between the two phases were found to have increased, from 0.14 to 0.30(0.31) and from 0.023 to 0.035(0.042) respectively, with the decrease in the hokutolite growth rate since 1973. The reaction rate of hokutolite as calculated from the phenomenological equations was, however, about 2 times higher in 1983 than in 1965. These results were ascribed to the rise in the degree of the supersaturation of barium sulfate and also to the increase in the nucleation rate in the hot spring water.
Interfacial Adsorption of 1,10-Phenanthroline Complexes in Solvent Extraction Systems
Authors: Watarai Hitoshi , Horii Yoko , Fujishima Mitsuaki 
Published: July 2006

Abstract
A significant adsorptivity of tris(1,10-phenanthroline)iron(II), [Fe(phen)3]2+, at the interface of chloroform or carbon tetrachloride/0.1 M aqueous sodium chloride systems was determined by means of interfacial tension measurements at 25 °C. In the distribution systems of phen containing Zn(II) or Cu(II), a characteristic interfacial tension lowering was observed and interpreted in terms of an interfacial adsorption of metal–phen complexes.
Dynamic NMR as a Nondestructive Method for the Determination of Rates of Dissociation. XIV. Examination of Rates of Proton-Detachment from Ammonium Ions with Multiple Probes
Authors: Morita Toshiari , Oki Michinori 
Published: July 2006

Abstract
The rates of proton-detachment and those of topomerization in ammonium ions of benzyldiethylammonium chloride and benzylisopropylmethylammonium chloride were determined by dynamic NMR spectroscopy, by taking advantage of loss of coupling of the benzylic methylene or the methyl protons for the former process and site-exchange of the diastereotopic protons at the ethyl-methylene, isopropyl-methyl, or benzylic methylene positions for the latter in 1H NMR spectroscopy. The rates of the both processes were in good agreement with each other to indicate that the rate-limiting process in the observed topomerization is the proton-detachment. Thus it is shown that any available probes may be used for the proton-detachment or for the ivestigation of the proton affinity of amines by the dynamic NMR spectroscopy in aprotic solvents. The preference of the probes was discussed.
Synthetic Studies on Germacranolides: Synthesis of Optically Active 3-Benzoyloxy-6-oxo-13-nor-12,8-heliangolide
Authors: Utagawa Akiko , Hirota Hiroshi , Ohno Shigeru , Takahashi Takeyoshi 
Published: July 2006

Abstract
Optically active (3R,7R,8R,1(10)E,4Z)-3-benzoyloxy-6-oxo-13-nor-1(10),4-germacradieno-12,8-lactone, a key synthetic intermediate for naturally occurring hiyodorilactone A, was prepared from (−)-carvone.
Cycloaddition Reactions of 2-Hydroxy-, 2-Amino-, and 2-Mercapto-1-azaazulenes with Reactive Acetylenes
Authors: Abe Noritaka , Takehiro Toshiyuki 
Published: July 2006

Abstract
The reaction of 1-methyl-1-azaazulen-2(1H)-one (1a) with dimethyl acetylenedicarboxylate (DMAD) or dibenzoylacetylene (DBA) in refluxing acetonitrile gave 1,2-disubstituted azulene (2), 2-methylcyclopent[de]isoquinolin-3(2H)-ones, 1-methyl-1-azacyclopent[cd]azulen-2(1H)-ones, and 3-substituted 1-methyl-1-azaazulen-2(1H)-ones, whereas in refluxing t-butylbenzene, compound 2 and 6,8-etheno-1-methylcyclohepta[b]pyrrol-2(1H)-one were obtained as major products. The reactions proceeded periselectively depending on the temperature. 2-Hydroxy-1-azaazulene behaved as 1-azaazulen-2(1H)-one and the reaction with DMAD gave similar result as for 1a. The reaction of 2-amino-1-azaazulene with DMAD gave methyl 2,4a-dihydro-2-oxo-1,4a-diazabenz[a]azulene-4-carboxylate and tetramethyl 4,5-dihydro-1H-1,11-diazacyclohept[a]azulene-2,3,4,5-tetracarboxylate. The reaction of 2-mercapto-1-azaazulene with DMAD gave tetramethyl 4,4a-dihydro-4a-azabenz[a]azulene-1,2,3,4-tetracarboxylate in moderate yield. The reaction mechanisms of these reactions are discussed.
The Synthesis of a Double-Layered Annulene with 10π-Rings. 1,1:2,2-Bis([10]annulene-1,6-diyl)ethylene
Authors: Yamamoto Koji , Ojima J\={u}ro , Morita Noboru , Asao Toyonobu 
Published: July 2006

Abstract
The synthesis of the title compound, a double-layered annulene with 10π-rings, is described. The examination of 1H NMR and electronic spectra suggests that the layered compound exhibits appreciable interaction between two [10]annulene rings.
Synthesis of 2-Benzylidene-3(2H)-benzofuran-3-ones (Aurones) by Oxidation of 2′-Hydroxychalcones with Mercury(II) Acetate
Authors: Sekizaki Haruo 
Published: July 2006

Abstract
The reaction of 2′-hydroxychalcones with mercury(II) acetate in acetic acid gives predominantly 2-benzylidene-3(2H)-benzofuran-3-ones (aurones) in 28–62% yield accompanied by flavanones in 5–21% yield.
Stereoselective Synthesis of 3,5-Alkadienoic Esters from 2,4-Dienoic Isomers
Authors: Tsuboi Sadao , Sakamoto Jun-ichi , Kuroda Akihisa , Utaka Masanori , Takeda Akira 
Published: July 2006

Abstract
The treatment of (2E,4Z)-2,4-alkadienoic esters with lithium diisopropylamide (LDA) at −80 °C gave (3E,5E)-isomers with 81–98% stereoselectivity. In contrast, the treatment of (2E,4E)-isomers under the same conditions gave (3E,5Z)-isomers with 72–80% stereoselectivity. The application to the synthesis of megatomoic acid is described. Carbon-13 NMR data regarding these 3,5-dienoates were obtained.
Unusual Concentration–Rate Profiles for Oxidation of a Pair of Associating Thiols
Authors: Kato Jun-ichi , Ito Masato M , Hagino Kazuomi , Naitoh Narumi , Misaka Makoto , Fujishiro Einosuke , Endo Tadashi 
Published: July 2006

Abstract
In base-catalyzed oxidation of a pair of associating thiols [HSCH2–CONHCONH–Ph and HSCH2CH2NHCONHCO–C6H13] with oxygen, there are concentration regions where initial rates decrease with increasing concentrations of the thiols. For a pair of nonassociating thiols [HSCH2CO2C2H5 and HSCH2CH2OH], initial rates increase linearly with concentrations of the thiols.
Catalytic Activity of catena-μ-Cyano-(phthalocyaninato)cobalt(III) for the Cathodic Reduction of Oxygen
Authors: Ikeda Osamu , Itoh Shuji , Yoneyama Hiroshi 
Published: July 2006

Abstract
catena-μ-Cyano-(phthalocyaninato)cobalt(III) showed a 4-electron reducibility for the cathodic reduction of oxygen at low overpotentials, which was not observed for (phthalocyaninato)cobalt(II) and chloro(phthalocyaninato)cobalt(III).
The Adsorption of Cholesterol and Egg-Lecithin from Solutions on Active Carbon
Authors: Zhao Zhenguo , Wu Aiyin , Gu Tiren , Ma Yuanming 
Published: July 2006

Abstract
The adsorption isotherms of cholesterol from ethanol and cyclohexane (at 25 and 35 °C), and of egg-lecithin from ethanol and ethanol–water mixed solvent (at 25 °C) onto active carbon have been determined. The isotherms can be represented by Dubinin–Radushkevich equation. The results indicate that the adsorption of cholesterol and lecithin from solutions onto active carbon can be explained by the mechanism of micropore filling.
Chlorothionitrene Complexes of Tungsten. Synthesis, Characterization, and Chemical Behavior of Tungsten(VI) Thionitrene Complexes
Authors: Seth Jyoti , Gupta Minu , Agarwala U C 
Published: July 2006

Abstract
The syntheses of Tungsten(VI) chlorothionitrene complexes have been described and their chemical behavior was studied. The compounds were characterized by microanalyses, vibrational, electronic, ESR, NMR spectral and other Chemical studies.
A Simulation of Bromate–Cerium–Oxalic Acid Oscillations
Authors: Sasaki Yoshihiro 
Published: July 2006

Abstract
The oscillation behavior of the bromate–cerium–oxalic acid system was simulated within the FKN framework with bromine-hydrolysis control, where a radical-chain reaction of HOBr with oxalic acid and the formation of HCO2· by the reduction of Ce(IV) were assumed. When [(COOH)2]=0.03 mol dm−3 and k13=0.075 s−1 (k13: the rate constant of bromine removal), the oscillation behavior was qualitatively consistent with the experimental results. Excitability in the reduced and oxidized steady states, induced by a sudden change in the concentration of bromine, was simulated. No bistability was found. When [(COOH)2]=0.03 mol dm−3, no hysteresis near the bifurcation points was observed. However, when [(COOH)2]=0.001 mol dm−3, hysteresis was observed in the transition between the oxidized steady state and the oscillatory state.
ESR Study on the Reactions of 1,3-Diene Cation Radicals in Low-Temperature Matrices
Authors: Fujisawa Jun , Takayanagi Toshiyuki , Sato Shin , Shimokoshi Kazuo 
Published: July 2006

Abstract
The reactions of the cation radicals of 1,3-butadiene, cis- and trans- 1,3-pentadienes, 2-methyl-1,3-butadiene, and 2,3-dimethyl- 1,3-butadiene have been investigated by low-temperature matrix ESR. The cation radicals produced in the irradiated solid solutions of CCl2FCCl2F were found to react with their neutral parents at temperatures above ca. 110 K, forming radicals with allylic ends. On the other hand, 1,3-pentadiene cation radicals in the matrices of CCl4, CCl3F, and CCl3CF3 were found to isomerize into cyclopentene cation radicals, irrespective of the cis and trans forms. The possible mechanisms for the reactions and their implications in the cationic polymerization of dienes are discussed.
Preparation of Fluorine-Containing Phenylacetylenes by the Method of Introduction of the Ethynyl Group Using 1,1-Dichloro-2,2-difluoroethene
Authors: Kodaira Kazuo , Okuhara Kunio 
Published: July 2006

Abstract
Phenylacetylenes (ArC≡CH) having fluoro- or trifluoromethyl substituents (o-, m-, p-F; o-, m-, p-CF3; 2,4-, 2,5-, 2,6-, 3,5-(CF3)2) have been prepared from bromobenzenes (ArBr) and benzenes (ArH) using 1,1-dichloro-2,2-difluoroethene (1) by a two-step route: ArLi or ArMgBr→ArCF=CCl2→ArC≡CLi. Upon careful treatment at −70 °C with 1, o-fluorophenyllithium gave o-FC6H4CF=CCl2 in good yield, together with benzyne-derived products, such as o-(o-FC6H4)C6H4CF=CCl2. Lithiation of m-bis(trifluoromethyl)benzene at 0 °C for 9 h (24 h) followed by treatment with bromine gave 1-bromo-2,4-, 2,6-, and 3,5-bis(trifluoromethyl)benzene in 35 (38), 31 (36), and 8% (6%) yield, respectively.
Homolytic Decomposition of t-Alkyl 2,2-Dimethylperoxypropionates
Authors: Komai Takeshi , Matsuyama Kazuo , Matsushima Masaru 
Published: July 2006

Abstract
Decomposition rates and products of t-alkyl 2,2-dimethylperoxypropionates were measured in cumene at several temperatures. The peroxyesters decomposed homolytically, depending on the structure of the t-alkyl moiety. The relative rates of the t-alkyl moieties to the 1,1-dimethylethyl one were: 1,1-dimethylbutyl (1.14), 1,1-dimethylpropyl (1.19), 1,1,2-trimethylpropyl (1.85), 1,1,3,3-tetramethylbutyl (2.10), and 1,1-dimethyl-2-phenylethyl (2.34). The decomposition showed an isokinetic relationship and the importance of stabilization by hyperconjugation. Based on these data, the decomposition mechanism, which contains a slight stretching of the Cα–Cβ bond to the peroxyl oxygen at the transition state is, discussed.
Oxidoreduction between Cycloalkanols and the Corresponding Cycloalkanones in the Cultured Cells of Nicotiana tabacum. Simulation of the Time Courses in the Oxidoreduction
Authors: Izumi Shunsuke , Suga Takayuki 
Published: July 2006

Abstract
A method for the simulation of the time courses in the oxidation of cycloalkanols and the reduction of cycloalkanones in the cultured cells of Nicotiana tabacum was developed on the basis of the permeability of these compounds into the cultured cells and the 13C NMR chemical shift of the carbonyl carbon of the cycloalkanones. Further, the method has been applied to the simulation of the time courses in the oxidation of (+)-borneol and (+)-isopinocampheol and the reduction of (−)-carvomenthone in the cultured cells of N. tabacum.
The Effect of the Heat Treatment of Pd Thin Film Alloy on the Hydrogenation of Olefins
Authors: Tamaki Jun , Yamamura Masashi , Imanaka Toshinobu 
Published: July 2006

Abstract
Pd–(B, P) thin film alloys have been prepared by an RF sputtering method. Before heat treatment, the selectivity for the partial hydrogenation of olefins increased with the increase in the B or P concentration in the Pd–(B, P) films. After the heat treatment, on the other hand, the selectivity for the partial hydrogenation was reduced over the Pd films with a low B or P concentration. However, in the case of the Pd films with a high B or P concentration, the selectivity was enhanced by the heat treatment. The high selectivity after the heat treatment was explainable in terms of the small ensemble size, the low electron density of Pd, and the appearance of a Pd3B, Pd4.8P, or Pd5P2 phase in the Pd films with a high B or P concentration. A sputtered film is known to have a columnar structure. This columnar structure was deduced to be controlled both by the alloying of Pd with B or P and by the heat treatment, so as to exhibit the high selectivity for the partial hydrogenation of olefins.
Second Virial Coefficients of Axially Symmetric Molecules
Authors: Boushehri Ali , Attaran A Mohammad 
Published: July 2006

Abstract
The paper presents a contribution to the second virial coefficient due to the asphericity of the molecular charge distribution. This contribution is conveniently divided into terms representing the classical electrostatic interaction between the two charge distributions, the anisotropy of dispersion forces, and the shape of the molecular core. These are considered quantitatively. Results from recalculating the nonspherical contributions to the second virial coefficients with a good spherical core are obtained from statistical mechanics and applied to the CO2 gas. Explilcit formulas are given for the simple cases of axially symmetric molecules.
Kinetic Study of the Oxidation of Substituted Benzyl Alcohols by Ethyl Chlorocarbamate
Authors: Jain (nee Mittal) Suman , Banerji Kalyan K 
Published: July 2006

Abstract
The kinetics of the oxidation of twenty-four monosubstituted benzyl alcohols by ethyl chlorocarbamate (ECC) have been studied in aqueous acetic acid solution, in the presence of perchloric acid. The main product of the oxidation is the corresponding benzaldehyde. The reaction is first order with respect to the alcohol, ECC, and hydrogen ion. The oxidation of [α,α-D2]benzyl alcohol indicated a primary kinetic isotope effect, kH⁄kD=5.40 at 298 K. The value of solvent isotope effect, k(H2O)/k(D2O), is 1.85 at 298 K. Addition of ethyl carbamate does not affect the reaction rate. [EtOC(OH)NHCl]+ has been postulated as the reactive oxidizing species. The rates of oxidation of para- and meta-substituted benzyl alcohols show excellent correlation in Taft’s dual substituent parameter equation, with negative reaction constants. The rates of the ortho-substituted compounds correlate well in Charton’s equation of inductive, resonance and steric substituent parameters. A mechanism involving simultaneous transfer of a hydride ion from the C–H bond and of a proton from the O–H bond to the oxidant is proposed.
Liquid Crystalline Catalysis. Kinetics of the Rearrangement of Allyl p-(Dimethylamino)benzenesulfonate in a Smectic B–Solvent
Authors: De Maria Paolo , Samorì Bruno , Tampieri Anna , Zani Paolo 
Published: July 2006

Abstract
Allyl p-(dimethylamino)benzenesulfonate (ASE) was found to promptly rearrange to the corresponding quaternary zwitterion (AZWI) in a smectic, liquid crystalline solvent (OS 35) 4-pentylcyclohexyl 4-propylcyclohexanecarboxylate. On the contrary, this reaction does not occur in isotropic solvents. In the present study we investigate the effect of temperature and of reactant concentration on the reaction rate. A plot of logk vs. 1⁄T shows a strog upward curvature. In addition, the rate constant, k, strongly depends on ASE concentration: relevant rate depression occurs beyond a threshold value of solute concentration, which in turns depends on temperature. These results are interpreted in terms of reaction mechanism and solute–solvent interaction. From these results we can conclude that smectic B phase has a strong catalytic effect on this particular kind of nucleophilic displacement. Furthermore, catalysis does not depend on solute expulsion from the bulk of the phase; finaly, the detailed mechanism of the catalytic effect may depend on the different location of the solute in distinct solubilization sites existing within the smectic mesophase.
Molecular Rearrangements. XXIX. Thermolysis of Aromatic Ketoximes
Authors: Badr M Z A , Aly M M , Mahgoub S A , Fahmy A M , Atallah A A 
Published: July 2006

Abstract
Thermolysis of benzophenone O-benzoyloxime leads to the formation of NH3, CO2, benzene, biphenyl, benzophenone, benzanilide, benzonitrile, benzoic acid, 2-phenylbenzoxazole, salicylaldehyde and its p-isomer. Analogous results were also obtained on thermolysis of acetophenone O-benzoyloxime. Similarly, benzophenone and/or acetophenone O-benzyloximes give pyrolysis products of the same nature in addition to others corresponding to the benzyl moiety. Thermolysis of deoxybenzoin oxime gives NH3, toluene, benzonitrile, bibenzyl, benzil, benzyl alcohol, and 2-phenylindole. Moreover, its O-benzoyl ether affords in addition to these products, benzoic acid and benzyl benzoate. The main feature of these pyrolyses is the homolysis of the N–O bond together with either O-benzyl or O-benzoyl bonds providing free radicals that undergo different reactions involving H-abstraction, dimerization, fragmentation, rearrangement and cyclization to form the identified products.
The Crystal and Molecular Structure of μ-Oxo-bis[bromotriphenylantimony(V)], [SbBr(C6H5)3]2O
Authors: Ouchi Akira , Sato Shoichi 
Published: July 2006

Abstract
The crystal and molecular structure of the title complex was determined by the single-crystal X-ray diffraction method. The crystallographic data are: monoclinic, space group P21⁄c, a=19.164(6), b=19.020(9), c=18.649(7) Å, β=95.06(3)°, and Z=8 (16 metal atoms are in a unit cell). There are two crystallographically independent dimeric [SbBr(C6H5)3]2O molecules, which are almost in the same form. Each antimony atom is bonded with three phenyl carbon atoms equatorially and one bromine as well as one bridging oxygen atoms axially, being in a trigonal-bipyramidal geometry. The Sb–O–Sb′ angles are 170.2(7) and 176.6(8)°, while the Sb–O lengths are in the range of 1.931(13)—1.958(13) Å, which are shorter than the sum of their covalent radii of the atoms: 2.15 Å.
Thermal Cis–Trans Isomerization of Dihalogenobis[trialkyl(or aryl)phosphine]platinum(II) in the Solid State
Authors: Fushimi Masaki , Suzuki Masatatsu , Uehara Akira 
Published: July 2006

Abstract
Solid-state thermal cis–trans isomerization of the platinum(II) complexes of the type [PtX2(PR3)2] were investigated by means of DSC methods, where X is Cl, Br, or I; R is CH3, C2H5, n-C3H7, n-C4H9, or C6H5. High isomerization ratios (93–100%) were observed for the cis complexes of P(C2H5)3 (X: Br; I), P(n-C3H7)3 (X: Br; I), and P(n-C4H9)3 (X: Cl; Br).
The Magnetic Properties of the Copper(II) Alkanoate Adducts with Cyclic Ethers and Tertiary Amines
Authors: Emori Shuji , Nonaka Hiroki , Ikeda Noriyasu , Muto Yoneichiro 
Published: July 2006

Abstract
Various copper(II) alkanoate adducts with cyclic ethers and tertiary amines have been prepared and characterized by means of magnetic susceptibility and IR spectroscopy measurements. The effect on the magnetic moments of the dinuclear copper(II) alkanoates of varying the base strength of the axial ligands is also discussed.
A Convenient Synthesis of 2-t-Alkyldioxy-2-methyl-1-propanols
Authors: Higuchi Yoshiki , Matsuyama Kazuo , Komai Takeshi 
Published: July 2006

Abstract
Several 2-t-alkyldioxy-2-methyl-1-propanols have been synthesized conveniently by a ring-opening reaction of 1,2-epoxy-2-methylpropane with t-alkyl hydroperoxides in the presence of halogenated acetic acid catalysts.