bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Reactions of 1,2-Diphenyl-1-azaspiro[2,2]pentane and 2-Phenyl-1-azaspiro[2.2]pent-1-ene with C,N-Diarylnitrilimines
Authors: Tsuge Otohiko , Watanabe Hiroyuki , Kiryu Yoko 
Published: July 2006

Abstract
The reactions of highly strained 1,2-diphenyl-1-azaspiro[2.2]pentane (1) and 2-phenyl-1-azaspiro[2.2]pent-1-ene (2) with C,N-diarylnitrilimines (3) were described. The reaction of 1 with 3 gave the corresponding 4,5,7,8-tetraphenyl-4,6,7-triazaspiro[2.5]oct-5-ene, 1,5,7,8-tetraphenyl-5,6,8-triazaspiro[3.4]oct-6-ene, 1,3,5-triphenyl-2-pyrazoline, 1,3,4-triphenyl-1,2,4-triazolin-5-one, and/or 1,3,4,6,8-pentaphenyl-1,2,4,6,7-pentaazaspiro[4.4]nona-2,7-diene, whose yields depended on the reaction conditions. The pathways for the formation of products are also postulated. The azaspiropentene 2 readily reacted with 3 to give the corresponding 1,2,4-triphenyl-2,3,5-triazabicyclo[4.2.0]octa-3,5-diene arising from the rearrangement of initial 1,3-cycloadduct.
The Crystal Structures of (+)589- and (−)589-trans(O)-Ethylenediaminebis(glycinato)cobalt(III) Hydrogen-d-tartrates and Their Thermal Behavior
Authors: Kuramoto Masahiro 
Published: July 2006

Abstract
The crystal structures of two diastereoisomeric salts, (+)589-trans(O)-[Co(gly)2en]H-d-tart·3H2O (1) and (−)589-trans(O)-[Co(gly)2en]H-d-tart·H2O (2), have been determined by three-dimensional X-ray analysis. The less-soluble salt (1) is monoclinic; space group, P21; Z=2, a=12.351(5), b=7.671(3), c=10.189(5) Å, and β=110.71(4)° (R=0.043, 2241 reflections). The more-soluble salt (2) is monoclinic; space group, P21; Z=2, a=11.135(4), b=10.037(3), c=7.716(3) Å, and β=98.61(3)° (R=0.064, 2076 reflections). A comparison of the (unit cell volume)/Z values of the two crystals shows that the crystal 1 is more tightly packed than the crystal 2. In both salts, adjacent complex cations form quite similar chain structures linked by (N–H…O) hydrogen bonds. The H-d-tart anions in 1 take a characteristic “head-to-tail” arrangement of an infinite chain of {H-d-tart}∞ along the b-axis. In contrast, this arrangement is not found in the more-soluble salt (2). From these findings, it can be considered that the discrimination of optical isomers in the H-d-tart system originates from the spiral chain structure of {H-d-tart}∞. The absolute configurations of (+)589- and (−)589-trans(O)-[Co(gly)2en]+ are determined to be Λ-δ and Λ-λ respectively. TG and DSC measurements were carried out for both salts, and the ΔH values of the dehydration step were estimated to be 64.4 kJ mol−1 for 1 and 73.0 kJ mol−1 for 2.
Catalytic Hydrogenolysis of 1,1-Dichloro-3-methyl-2-phenylcyclopropane
Authors: Isogai Koji , Hirabayashi Shigeru 
Published: July 2006

Abstract
The title compound was hydrogenolyzed over PdO or Raney nickel. The C2–C3 bond of the cyclopropane ring underwent cleavage exclusively over PdO. Cleavage of the C1–C2 and C2–C3 bonds occurred competitively over Raney nickel. A probable pathway is suggested.
Reaction of Nitrosodurene with Grignard Reagents
Authors: \={O}kubo Masao , Takahashi Tomoko 
Published: July 2006

Abstract
Nitrosodurene was allowed to react with alkyl- and arylmagnesium halides and the reaction was followed by ESR. The spectrum of nitrosodurene anion radical was observed, the stability sequence of alkyl duryl nitroxides being discussed on the basis of the coupling constants of α-hydrogen atoms of alkyl groups.
The Reaction of 2,4,6-Triphenyl-1,3-thiazinylium Perchlorate with Active Methylenes
Authors: Shibuya Isao 
Published: July 2006

Abstract
The reaction of 2,4,6-triphenyl-1,3-thiazinylium perchlorate (4) with several active methylenes was studied. Methyl cyanoacetate or benzoylacetonitrile reacted with 4 to give 3-cyano-2,4,6-triphenylpyridine, while malononitrile led to 1-mercapto-1,3-diphenyl-4,4-dicyanobutadiene and cyanoacetamide led to 2-hydroxy-3-cyano-4,6-diphenyl-pyridine. The reaction of diethyl malonate, nitromethane, or nitroethane with 4 gave 2-[bis(ethoxycarbonyl)methyl]-, 2-nitromethyl- or 2-(1-nitroethyl)-2,4,6-triphenyl-2H-1,3-thiazine respectively. These results showed that the reaction manner of 4 to these active methylenes is significantly different from that of 2,4,6-triphenyl-1,3-oxazinylium salt.
The Proton-transfer Reactions of the Univalent Anions of ortho-Hydroxy Azo Compounds in Dioxane–Water Media
Authors: Yoshida Noboru , Fujimoto Masatoshi 
Published: July 2006

Abstract
The proton-transfer reactions of the univalent anions of 4-(2-pyridylazo)resorcinol (PAR) and 4-(2-hydroxy-5-ethyIphenylazo)benzenesulfonic acid (HEB) with hydroxide ion in dioxane-water media, HA−+OH−\oversetkf\undersetkr\ightleftharpoonsA2−+H2O, were studied by means of temperature-jump method. The dependencies of the rate constants, kf and kr on the solvent compositions were interpreted by a mechanism involving the breaking of an intramolecular hydrogen-bond.
The Cyclodextrin-accelerated Cleavage of Thiocarboxylic S-Esters
Authors: Komiyama Makoto , Bender Myron Lee 
Published: July 2006

Abstract
The effect of α- and β-cyclodextrins on the cleavage of the thiocarboxylic S-esters, S-p-nitrophenyl thioacetate (1) and S-ethyl p-nitrothiobenzoate (3), was compared with their effect on the cleavage of the corresponding oxygen esters, p-nitrophenyl acetate (2) and ethyl p-nitrobenzoate (4). The rate constants of α- or β-cyclodextrin-accelerated cleavage of 1 (1.5×10−2 or 4.8×10−2 s−1 at pH 10.5, 25 °C) were almost identical with the values of 2 (1.6×10−2 or 4.2×10−2 s−1), definitely showing the rate-determining formation of tetrahedral intermediates. The cleavage of 3 was accelerated by α- and β-cyclodextrins, whereas the cleavage of 4 was decelerated by β-cyclodextrin but was not affected by α-cyclodextrin. The contrast in the effect of cyclodextrins on 3 and 4 was ascribed to the difference of the rate of breakdown of the tetrahedral intermediates to products, caused by different pK’s of the leaving groups of 3 (10.5) and 4 (16.0). The formation of tetrahedral intermediates confirmed in the cyclodextrinaccelerated hydrolyses of esters further strengthened the previous proposal that cyclodextrin is an excellent model of serine proteases, since these intermediates are also formed in enzymatic reactions.
Chemistry of Dienyl Anions. II. Crystalline Bis(dienyl)magnesium. Selective Dienylation and Structure in Solution and in the Solid State
Authors: Yasuda Hajime , Yamauchi Michihide , Nakamura Akira , Sei Tsuyoshi , Kai Yasushi , Yasuoka Noritake , Kasai Nobutami 
Published: July 2006

Abstract
Seven different crystalline bis(dienyl)magnesium·TMEDA complexes of open chain or cyclic structure were prepared by metal exchange reaction of corresponding potassium dienides. They are fluxional in solution due to the rapid 1,3-rearrangement. Terminally σ-bonded trans or (E) structure exists primarily in the open chain complexes while centrally σ-bonded cis structure in cyclic dienylmagnesium·TMEDA complexes. The former gave 1,3-dienes exclusively but the latter gave 1,4-dienes upon hydrolysis. Molecular structure of bis(2,4-dimethyl-2,4-pentadienyl)magnesium determined by X-ray crystallography showed that it has terminally σ-bonded structure. Addition of dienylmagnesium compounds to acetone followed by hydrolysis gave 1,4-diene derivatives regioselectively but that to diisopropyl ketone gave 1,3-diene derivatives selectively. Unsaturated alcohols with an elongated carbon chain were synthesized by thermal cracking of cyclic ether complexes. 1,3,7-Trienes can be obtained selectively by reaction of appropriate allyl halides in the presence of CuCl catalyst and regioselective dienylation occurred by using TiCl2(η5-C5H5)2 as catalyst.
Pseudo-sugars. VI. Synthesis of Six Isomers of 5-Hydroxymethyl-1,2,3,4-cyclohexanetetrol (Pseudo-hexopyranose) and Their Derivatives
Authors: Ogawa Seiichiro , Ara Masayasu , Kondoh Takashi , Saitoh Michio , Masuda Reiko , Toyokuni Tatsushi , Suami Tetsuo 
Published: July 2006

Abstract
Six isomers of 5-hydroxymethyl-1,2,3,4-cyclohexanetetrol, including naturally occurring (1,2/3,4,5)-isomer, and their several derivatives were synthesized from the exo-2-substituted endo-3-acetoxy-endo-5-acetoxymethyl-7-oxabicyclo[2.2.1]heptane compounds.
A Convenient Method for the Preparation of Highly Pure t-Alkyl Bromides and Iodides
Authors: Masada Hiromitsu , Murotani Yoshiharu 
Published: July 2006

Abstract
Highly pure (99–100%) t-butyl and t-pentyl bromides and iodides, and 3-bromo-3-ethylpentane were readily prepared in 83–95% yields by the reactions of the corresponding alcohols with hydrobromic or hydroiodic acid, using lithium or calcium halide. The metal halides remarkably increased the yield and the purity of the products.
Facile Synthesis of 2,5-Diacylthiophenes. II. The Reaction of Diketo Sulfides with 1,2-Diketones
Authors: Miyahara Yuji , Inazu Takahiko , Yoshino Tamotsu 
Published: July 2006

Abstract
The base-catalyzed reaction of diketosulfides (RCOCH2)2S (R=phenyl, p-tolyl) with biacetyl or benzil have provided high yields of 2,5-diacyltetrahydrothiophene-3,4-diol derivatives rather than the expected 2,5-diacylthiophenes. The diols have been transformed cleanly into the corresponding 2,5-diacylthiophenes by treatment with thionyl chloride-pyridine. In contrast, the reaction of the diketo sulfide (R=p-tolyl) with phenylglyoxal afforded a 2,5-diacylthiophene directly in good yield.
The Kinetics of the Darzens Reaction of p-Substituted Benzaldehydes and Phenacyl Chloride
Authors: Bansal Raj Kumar , Sethi Kanta 
Published: July 2006

Abstract
The rate constants for the base-catalyzed Darzens reaction of p-substituted benzaldehydes and phenacyl chloride have been measured at two temperatures in aqueous dioxane. Enthalpies and entropies of activation have been evaluated. The reactivity of the p-substituted benzaldehydes was found to follow the order p-NO2&gt;p-Cl&gt;p-Br&gt;H&gt;p-CH3&gt;p-OCH3. The kinetic data can be correlated with ρ values according to the Hammett equation.
Synthetic Inorganic Ion-exchange Materials. XXVI. Ion-exchange Properties of Crystalline Antimonic(V) Acid towards Noble Metals in Nitric Acid Media
Authors: Abe Mitsuo , Akimoto Mitsuo 
Published: July 2006

Abstract
A study of the distribution coefficients on crystalline antimonic(V) acid (C-SbA) shows an unusual affinity series {Pt(IV)&lt;Au(III)&lt;Pd(II)&lt;&lt;Hg(I), Hg(II), Ag(I)} for microamounts of noble metal ions in nitric acid solution, as compared with ion-exchange resins in strong acid type. Extremely high adsorptive properties are found on the exchange system of Hg(II) and Ag(I), even in relatively high concentrations of nitric acid solution. The ion-exchange studies for macroamounts indicate that a solid solution forms for the system of the Ag(I) ions and hydrogen ions in C-SbA, while two solid phases are presented for the system of Hg(II) ions and hydrogen ions.
The Oxidation of (E)-α-Phenylcinnamic Acids with Manganese(III) Acetate
Authors: Oishi Kazuki , Kurosawa Kazu 
Published: July 2006

Abstract
The oxidation of eight (E)-α-phenylcinnamic acids with manganese(III) acetate in boiling acetic acid containing acetic anhydride gave 3-phenylcoumarins, 3-phenyl-l-oxaspiro[4.5]deca-3,7,9-triene-2,6-diones, 2-phenylbenzofurans, 3-(acetoxymethyl)-2-phenylbenzofurans, 3-formyl-2-phenylbenzofuran, 2-acetoxy-2-phenyl-3 (2H)-benzofuranones, (Z)-α-acetoxystilbenes, 2-acetoxy-1,2-diphenylethanones, 5-acetoxy-4,5-diphenyl-2 (5H)-furanones, and diphenylacetylene. The reaction pathways are discussed.
Direct Measurement of the Interaction Energy between Solids and Gases. V. Change of the Differential Heats of Adsorption of Ammonia with Specific Poisoning on Silica–Alumina
Authors: Taniguchi Hitofumi , Masuda Tatsuo , Tsutsumi Kazuo , Takahashi Hiroshi 
Published: July 2006

Abstract
Heats of adsorption of ammonia on specifically poisoned silica–alumina were measured by use of a twin-conduction-type calorimeter in order to elucidate the adsorption energy and acid strength distributions for both Brönsted (hereafter referred to as B) and Lewis (L) acid sites. Infrared spectra of adsorbed pyridine and cumene cracking activity for the poisoned sample were also examined. Sodium alcoholate–alcohol solution was used as the reagent poisoning only B sites. The use of sodium 2-propanolate–2-propanole dilute solution of which sodium contents was approximately equal to the expected amount of proton on silica–alumina surface caused a large portion of B sites to be poisoned without the decrease in the number of L sites. The following conclusions could be drawn from the experimental results that i) above 115 kJ/mol of the differential heat of adsorption of ammonia no B acid sites were present but only L acid sites, and ii) B acid sites existed chiefly in the vicinity of the adsorption energy distribution of 110 kJ/mol.
Photoacoustic Spectrometry of Solid Samples. III. Microdetermination of Mercury as Hg Diphenylcarbazone Complex
Authors: Kawamoto Seiji , Yokoyama Yu , Ikeda Shigero 
Published: July 2006

Abstract
Photoacoustic spectrometry was applied to the determination of michroamount of Hg diphenylcarbazone complex. The photoacoustic spectrum and diffuse reflectance spectrum almost agree with each other, showing an absorption maximum at 560 nm, as in the absorption spectrum of the complex in benzene solution. Determination of Hg was performed by measuring the intensity of photoacoustic signal at 560 nm. The normalized signal intensity increased linearly with the amount of mercury ion up to 100 ng, deviating from linear relationship downwards above 100 ng. The photoacoustic signal saturation caused by strong absorption of radiation was investigated.
A 13C NMR and CNDO/2 Calculation Study of the Transannular Interaction in [2.2]Cyclophanes
Authors: Tokita Kazushi , Takemura Tetsuo , Kondo Shoichi , Mori Nobuo 
Published: July 2006

Abstract
The relationships between the aryl carbon chemical shifts and the CNDO/2 electron densities for several [2.2]cyclophanes are reported. Plots of the chemical shifts against the excess total electron densities indicate additional downfield shifts of 6–9 ppm on the average for those aryl carbons that are in close proximity to other aryl carbons. A plot of the 13C shielding constant, calculated using the Karplus-Pople theory, against the chemical shift shows a downfield shift of a similar magnitude for the proximate carbons relative to the others. It is found that this difference can be essentially eliminated simply by adjusting the ΔE parameter in the Karplus-Pople equation from 10.0 eV to 9.7 eV for the proximate carbon atoms.
The Synthesis and Cation-complexing Ability of Alkyl Crown Ethers
Authors: Mizuno Tadashi , Nakatsuji Yohji , Yanagida Shozo , Okahara Mitsuo 
Published: July 2006

Abstract
Alkyl-15-crown-5 and alkyl-12-crown-4 were prepared via polyethylene glycol β-haloalkyl ethers in two steps from terminal olefins, and their complexing ability with cations of alkali and alkaline earth metals was measured by using 1H NMR; it was found to be almost identified with that of the corresponding unsubstituted crown ether. A new type of alkyl crown ether with a chloro substituent could also be synthesized according to this method.
Photochemical Reactions of Aromatic Compounds. XXXIII. Photoreactions of 1-Cyanonaphthalene with Indene in Various Solvents
Authors: Yasuda Masahide , Pac Chyongjin , Sakurai Hiroshi 
Published: July 2006

Abstract
The stereospecific photocycloaddition of 1-cyanonaphthalene to indene occured in cyclohexane, benzene, diethyl ether, tetrahydrofuran, and ethyl acetate, giving the endo head-to-head cycloadduct as the sole 1:1-adduct. The mechanism was discussed in terms of the exciplex intermediacy. In methanol or in acetonitrile in the presence of water, the photoreaction gave the dihydrocycloadduct (8), accompanied by the formation of 2-methoxyindan and 2,2′-dimethoxy-1,1′-biindanyl or 2-indanol and 1-hydroxy-2,2′-biindanyl. In these solvents, the reactions were suggested to be initiated by photochemical electron transfer; the methoxylated or hydroxylated compounds are formed by the nucleophilic attack of methanol or water on the indene cation. Anionic species, including the 1-cyanonaphthalene anion, were suggested to play important roles in the formation of 8.
The Formation and Some Properties of Hydrous Manganese(IV) Oxide
Authors: Narita Eiichi , Okabe Taijiro 
Published: July 2006

Abstract
The properties of two kinds of hydrous manganese(IV) oxides (abbreviated as hydrous MnO2) prepared by the reduction of KMnO4 and by the disproportionation of K2MnO4 in alkaline solutions were investigated by means of chemical analysis, X-ray analysis, IR spectroscopy, wide-line NMR spectroscopy, thermal analysis, magnetic susceptibility measurement, etc. The chemical reactivity of the hydrous MnO2 was also evaluated from the extent of oxidation to K2MnO4 by the reaction with an alkaline KMnO4 solution at 80 °C. The properties and reactivity of the hydrous MnO2 predominantly depended on the pH of the suspensions. At a pH 8 or higher, amorphous ternary compounds of manganese(IV) oxide with an approximate composition of K2O·4MnOx·4H2O (x=1.97–2.00) were formed. The IR spectra and wide-line NMR spectra showed that the chemically bound water was in two different forms. The hydrous MnO2 had the greater chemical reactivity, being easily soluble as manganate(VI) ions by the reaction described above. The contents of the chemically bound water and alkali in the hydrous MnO2 decreased with a decrease in the pH of the suspensions and upon the acid-treatment of the precipitates. This variation in the chemical composition caused a decrease in the reactivity and a marked variation in the thermal behavior. The structure of the hydrous MnO2 was discussed on the basis of findings regarding the magnetic susceptibility and its temperature dependence.
Complexation of Arenediazonium Ions with a Macrocyclic Polyether. The Stability Constants for the Complexes
Authors: Hashida Yoji , Matsui Kohji 
Published: July 2006

Abstract
The stability constants for 18-crown-6 complexes with arenediazonium salts have been determined spectrophotometrically. The Hammett plot for m- and p-substituted benzenediazonium salts showed good correlation with a reaction constant 0.98 in methanol. The solvent effect on the stability of the complexes has been discussed.
A New Catalytic System for the Preparation of Chromanols
Authors: Tachibana Yoji 
Published: July 2006

Abstract
In the presence of the cation exchange resin complexes of metal ions, hydroquinone, resorcinol, and catechol reacted with phytyl chloride to give chromanols in good yields. The enhanced activity of the catalysts compared with the corresponding metal halides has been ascribed to the participation of the sulfonyl group in the abstraction of the proton on the benzene ring or the hydroxyl group. The catalysts were recycled several times with little loss of activity.
Stereochemical Control Exerted by Methoxyl Group on the Diiodomethane–Copper Methylenation of Cyclic Olefins Containing Methoxyl Group
Authors: Kawabata Nariyoshi , Ikeda Naoki 
Published: July 2006

Abstract
In the diiodomethane–copper methylenation of 3- and 4-methoxycyclopentenes and 3-methoxycyclohexene, the cis isomers of the cyclopropane derivatives predominated over the corresponding trans isomers, the trans isomer of cyclopropane derivatives being predominantly obtained from 3-methoxycyclooctene.
Quaternary Ammonium Periodate as a New Oxidizing Agent
Authors: Inomata Katsuhiko , Nakayama Yukiharu , Kotake Hiroshi 
Published: July 2006

Abstract
Quaternary ammonium periodate has been found to be a useful oxidizing agent to convert a 1,2-diol and an olefin to the corresponding carbonyl compound in anhydrous aprotic solvents. The resulting carbonyl compounds have been reacted with alkyllithium to prepare alcohols in one-pot from a 1,2-diol or an olefin.
Photo-induced Reaction of 2-Bromo-3-methoxy-1,4-naphthoquinone with 1,1-Dicyclopropylethylenes
Authors: Maruyama Kazuhiro , Tojo Masahiro , Otsuki Tetsuo 
Published: July 2006

Abstract
2-(2,2-Dicyclopropylethenyl)-3-methoxy-1,4-naphthoquinone was isolated as a major product, accompanied by 2,2-dicyclopropyl-2,3-dihydronaphtho[2,3-b]furan-4,9-dione in the photochemical reaction of 2-bromo-3-methoxy-1,4-naphthoquinone with 1,1-dicyclopropylethylene. An ionic pathway to lead these products was suggested.
Reactions of Aryldiazomethanes with Chloranil
Authors: Oshima Takumi , Nagai Toshikazu 
Published: July 2006

Abstract
The reactions of several aryldiazomethanes (1a: p-tolyl; 1b: phenyl; 1c: p-chlorophenyl) with chloranil gave stilbenes (3) and spiro-oxetanes (4) at 20 °C in tetrahydrofuran or 1,2-dichloroethane. The isomer ratios of 3 were ca. 2 to 3:1 in favor of cis, depending on the solvents and on the substituents of 1. In the case of 4, however, stable trans-isomers were selectively formed. On the other hand, the presence of added CH3OH suppressed the formations of 3 and 4 and, instead, induced redox reactions giving α,α-dimethoxyarylmethanes and tetrachlorohydroquinone (6). In these redox reactions, the acid decompositions of 1 with 6 were also found. However, the presence of CF3CH2OH allowed the formation of considerable amount of 3 and 4, along with the redox products. The mechanism of these reactions will be discussed.
Cyclodehydrogenation of 3-Isopropenyl- and 3-(1-Phenylvinyl)-tropolones to 8H-Cyclohepta[b]furan-8-one Derivatives
Authors: Imafuku Kimiaki , Yamaguchi Kazuko , Matsumura Hisashi 
Published: July 2006

Abstract
3-(1-Phenylvinyl)tropolone (3b) was prepared by the hydrolysis of cycloadducts of 6-methyl-6-phenylfulvene with dichloroketene. 3-Isopropenyltropolone and 3b were treated with 2,3-dichloro-5,6-dicyano-p-benzoquinone or performic acid to give 3-methyl- and 3-phenyl-8H-cyclohepta[b]furan-8-one, respectively. Reaction of 3b with hydrazoic acid afforded an unexpected 3-acetyltropolone.
Optical Resolutions and Configurations of Benzylmethylphenylsilylmethylamine and Its Derivatives
Authors: Terunuma Daiyo , Murakami Katsutoshi , Kokubo Masanori , Senda Kazuhisa , Nohira Hiroyuki 
Published: July 2006

Abstract
New optically active α-amino organosilanes, such as benzylmethylphenylsilylmethylamine, benzylmethyltolylsilylmethylamines, and anisylbenzylmethylsilylmethylamines, were obtained by the fractional crystallization of the salts of the amines and (+)-tartaric acid. Benzylmethylphenylsilylmethylamine was converted into benzylmethyl-1-naphthylphenylsilane, of which the configuration had been known. From these observations, it was found that benzylmethylphenylsilylmethylamine, benzylmethylphenylsilane, and benzylmethoxymethylphenylsilane had S(+), S(−), and S(+) configurations respectively.
The Study of Surfactant-Alcohol Mixed Micelles Using Conductance, Viscosity, and Electromotive Force Measurements
Authors: Tominaga Toshihiro , Stem Theodore B , Evans D Fennell 
Published: July 2006

Abstract
Conductance, viscosity, and EMF measurements were used to characterize solutions containing surfactant-alcohol micelles. The materials studied included sodium dodecyl sulfate (SDS), sodium octyl sulfate (SOS), decyltrimethylammonium bromide (DTAB), hexadecyltrimethylammonium bromide (CTAB) and the alcohols 1-pentanol through 1-octanol. The addition of alcohols caused the conductance of a 2% SDS solution to increase, and of a 3% solution of DTAB and of a 7% solution of SOS to decrease. CTAB showed both increases and decreases upon addition of alcohol. The EMF measurements permitted the concentration of free surfactant monomer and of unbound counterion in equilibrium with the micelle to be determined. When combined with the viscosity data, the change in conductance upon addition of alcohol can be interpreted in terms of changes in micellar shape and in the concentration of involved ions.