ライフサイエンスコーパス: dioxane

1 om (4S,5S)-5-amino-2,2-dimethyl-4-phenyl-1,3-dioxane.

2 ional solvent-vapor penetration (SVP) of 1,4-dioxane.

3 ate hydroxyl (HO*) radicals that degrade 1,4-dioxane.

4 e in the order: water < acetonitrile < 1,4 - dioxane.

5 entrations, suggesting selective pressure by dioxane.

6 mine (Pa-2), respectively, in 1:1 mesitylene/dioxane.

7 rtially deaggregates to monomer even in neat dioxane.

8 xamined in varying concentrations of THF and dioxane.

9 units RPA14 and RPA32 was identified to bind dioxane.

10 um dimethylaminoborohydride (LAB) in THF and dioxane.

11 ly in the presence of green light in toluene/dioxane.

12 n the two solvents investigated, toluene and dioxane.

13 is evidence for solvation of the carbene by dioxane.

14 )()eq interaction is especially important in dioxane.

15 radditive treatment effect for degrading 1,4-dioxane.

16 efficient at pH 5.5, but only by 30% for 1,4-dioxane.

17 ...O hydrogen bond with a ring oxygen of the dioxane.

18 suggesting that PRM has a higher affinity to dioxane.

19 e and caffeine, from their suspension in 1,4-dioxane.

20 o, 1,3-dioxane can be distinguished from 1,4-dioxane.

21 ntaminated with chlorinated solvents and 1,4-dioxane.

22 to an array of stock solutions of single 1,3-dioxanes.

23 h Na(HMDS) to form new sodium ferrate base [(dioxane)0.5 NaFe(HMDS)3 ] (1) enables regioselective mon

24 -2,6-(C6H4-4-(t)Bu)2 (Terph-Li) with UI3(1,4-dioxane)1.5 led to the formation of the homoleptic urani

25 (1) (cryptand = 222-Kryptofix) and Na(OCAs)(dioxane)(1.5) in thf/toluene to produce the mixed alkali

26 inate), and the uranium(III) salt, UI(3)(1,4-dioxane)(1.5), generated the triple inverse sandwich com

27 proposed for C-H bonds in cyclohexane, 1, 3-dioxane, 1,3-oxathiane, and 1,3-dithiane were studied co

28 n of unsaturated peroxyacetals furnishes 1,2-dioxanes, 1,2-dioxepanes, and 1,2-dioxacanes through 6-e

29 gonal protecting groups with traditional 1,3-dioxane/1,3-dioxolane for carbonyl compounds.

30 iven Fenton reaction completely degraded 1,4-dioxane (10 mM initial concentration) in 53 h with an op

31 romoalkenes is promoted by Pd(OAc)2 (10%) in dioxane (100 degrees C) to give cyclotrimers in 27-77% y

32 tion of 4-acyl-5-methoxy-/5-aminoisoxazoles (dioxane, 105 degrees C) leads to the formation of isoxaz

33 into isoxazoles under catalytic conditions (dioxane, 105 degrees C) or into oxazoles under noncataly

34 a(1)-AR) binding sites recognized by the 1,4-dioxanes 2-4 display reversed stereochemical requirement

35 m-oxo bond scission and formation of UI4(1,4-dioxane)2 with extrusion of hexamethyldisiloxane.

36 3)]), cyanate (Na[NCO]), and phosphonate (Na(dioxane)(2.5)[PCO]) to afford the [Fe(3)]-nitrido (N(3-)

37 (6S)-3-Methylene-6-methyl-1,4-dioxane-2,5-dione was synthesized from L-lactide and use

38 ing a small percentage of spiro[6-methyl-1,4-dioxane-2,5-dione-3,2'-bicyclo[2.2.1]hept[5]ene] into po

39 the dienophile to prepare spiro[6-methyl-1,4-dioxane-2,5-dione-3,2'-bicyclo[2.2.1]hept[5]ene] via an

40 nd is low and calculated as 6.0 kcal/mol for dioxane 22a and 2.0 kcal/mol for the formation of cycloh

41 3-dioxane (TMD) and 2-ethyl-5,5-dimethyl-1,3-dioxane (2EDD) which impart a distinctive sickening or o

42 Two series of 1,4-dioxanes (4-11 and 12-19) were rationally designed and p

43 cis-2-tert-butyl-5-(tert-butylsulfonyl)-1,3-dioxane, (4) determination of enthalpic and entropic con

44 nthracen-9-yl-allylidene)-2,2-dimethyl-[1,3] dioxane-4,6-dione) (E-AYAD) undergoes E->Z photoisomeriz

45 m's acid (5-(4-bromobenzyl)-2,2-dimethyl-1,3-dioxane-4,6-dione) and tandem conjugate reduction-select

46 d (5-(4-methoxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione).

47 In 1,4-dioxane, 8 decomposes to Ph2C=CPh2 via first-order kinet

48 boronic acid reacted at only 60 degrees C in dioxane (86% yield).

49 mical system achieved 0.5 log removal of 1,4-dioxane, a benchmark for AOP validation for potable reus

50 Protection of the aldehyde as a 1,3-dioxane acetal led to strong fluorescence emitted by the

51 odification significantly stabilized the 1,3-dioxane acetal protecting group, allowing for specific s

52 D-F07 triggered the aldehyde-protecting 1,3-dioxane acetal to slowly decompose, leading to the inhib

53 However, axial 5-phenyl-1,3-dioxane adopts a "parallel" conformation that allows an

54 rs also outperform commercial resins for 1,4-dioxane adsorption, which contaminates many water source

55 function as the formylating agent, with 1,4-dioxane affording the best results.

56 They demonstrated a higher stability of the dioxane alpha-bromo anion with respect to alpha-eliminat

57 microbially driven Fenton degradation of 1,4-dioxane, an indication that conventional and microbially

58 A series of novel 1,4-dioxane analogues of the muscarinic acetylcholine recept

59 n of cell viability after treatment with 1,4-dioxane and 5-fluorouracil, which proves that it can be

60 ltaG(double dagger)(298) by 4.2 kcal/mol for dioxane and 6.4 kcal/mol for cyclohexane derivatives tha

61 ms to tackle the commingled contamination of dioxane and chlorinated compounds.

62 At sites where dioxane and chlorinated solvents were present, the media

63 versible for the 6-endo-dig mechanism in 1,4-dioxane and consequently, the 5-exo-dig pathway is diffi

64 Radicals derived from dioxane and diisopropyl ether by flash photolysis of DTB

65 esirable chemical reactions by production of dioxane and dioxolane isomers, furfural and 5-hydroxymet

66 -2-substituted pyrrolidines using 4 N HCl in dioxane and MeOH gave the corresponding enantiomers of 2

67 e involved in the aerobic degradation of 1,4-dioxane and other environmental contaminants.

68 hR partial agonist, were designed by opening dioxane and replacing hydroxyl carbon with nitrogen.

69 Treatment of LB with 2 equiv of GeCl(2).dioxane and SnCl(2) in toluene gives compounds [(LB)Ge(I

70 growth on the environmental contaminant 1,4-dioxane and the first member of the genus Pseudonocardia

71 pared for the removal of O(3) refractory 1,4-dioxane and the reduction in the formation of bromate, 3

72 cts, a connected trans-3,6-disubstituted-1,2-dioxane and trans-2,5-disubstituted-tetrahydrofuran ring

73 in the side-chain conformations between the dioxane and water structures are of the same magnitude a

74 were provided with lactate, Fe(III), and 1,4-dioxane and were exposed to alternating aerobic and anae

75 the efficient synthesis of alpha-acyloxy-1,4-dioxanes and 1,4-dithianes employing t-butyl peroxyester

76 atorial conformers of phenyl substituted 1,3-dioxanes and tetrahydropyrans are compared with those of

77 ur findings reveal the potential of both 1,2-dioxanes and tetrahydropyrans as lead compounds for nove

78 osobenzothiazoline (2a) in acetonitrile, 1,4-dioxane, and cyclohexane followed first-order kinetics.

79 s water, methanol, chloroform, acetonitrile, dioxane, and DMSO.

80 size, chemical function, and geometry of 1,4-dioxane, and hence, a noncovalent auxiliary interaction

81 ewis bases, such as tert-butyl methyl ether, dioxane, anisole, ethyl acetate, beta-chloroethyl ether,

82 Solutions of the Lewis acid B(C6F5)3 in 1,4-dioxane are found to effectively catalyze the hydrogenat

83 fferences of para-substituted 2,2-diaryl-1,3-dioxanes are linearly related to the Hammett sigma value

84 e to high yields under ambient conditions in dioxane as solvent and aqueous tert-butyl hydroperoxide

85 tions, only in the presence of K2CO3, in 1,4-dioxane as solvent and under microwave irradiation, and

86 h cesium carbonate (Cs(2)CO(3)) as base, 1,4-dioxane as solvent at 90 degrees C for 24 h allowed for

87 s achieved using 30% of catalytic loading in dioxane at 10 degrees C.

88 conditions in the presence of Cs(2)CO(3) in dioxane at 100 degrees C and affords fused heterocycles

89 ylphosphino-1,1'-binaphthyl] and AgSbF(6) in dioxane at 100 degrees C for 24 h led to isolation of 1-

90 % yield and 99% ee upon reaction with CuI in dioxane at 100 degrees C.

91 mol % of ethylenediamine as the catalyst in dioxane at 110 degrees C in the presence of K(3)PO(4) as

92 l)methane and 4,4'-biphenyldialdehyde in 1,4-dioxane at 120 degrees C to produce a highly porous 9-fo

93 ligand (DPEphos) and a base (LiOtBu) in 1,4-dioxane at 120 degrees C.

94 Sodium methoxide and (+)-23 in dioxane at 25 degrees C and at 0 degrees C yield (+)-ben

95 )2(o-biphenyl)]Cl (2) and AgOTf (5 mol %) in dioxane at 25 degrees C for 45 min led to isolation of b

96 or isolated C(60) nanoparticles dissolved in dioxane at 293 K and at 77 K.

97 ichiometric amount of CuCl(2) (2.2 equiv) in dioxane at 60 degrees C for 12 h formed 3-isobutyryl-2-i

98 NMR spectrum (delta = 127.8 ppm at pH 13 vs dioxane at 66.6 ppm) is comparable to those that have be

99 as now been determined at pH > 13 in aqueous dioxane at 70 degrees C.

100 the Air Force data set confirmed significant dioxane attenuation (131 out of 441 wells) at a similar

101 s established a positive correlation between dioxane attenuation and increasing concentrations of dis

102 was used to provide significant evidence of dioxane attenuation at field sites.

103 The magnitude and prevalence of dioxane attenuation documented here suggest that natural

104 Dioxane attenuation rates were positively correlated wit

105 oxidation, enhanced bioremediation) impacted dioxane attenuation.

106 These results indicated that the 1,4-dioxane backbone in the ligands having the general struc

107 - and dichloroborane adducts of dioxane from dioxane-BCl(3) and NaBH(4) in the presence of catalytic

108 al preference of a variety of 2,2-diaryl-1,3-dioxanes bearing remote substituents on the phenyl rings

109 le to the UV/H2O2 AOP for degradation of 1,4-dioxane, benzoate and carbamazepine across pH 5.5-8.3.

110 t 1,1-DCE was the strongest inhibitor of 1,4-dioxane biodegradation by bacterial pure cultures expose

111 d solvents and their mixtures on aerobic 1,4-dioxane biodegradation by Pseudonocardia dioxanivorans C

112 Inhibition of 1,4-dioxane biodegradation rates by chlorinated solvents was

113 5 mg L(-1) 1,1-DCE completely inhibited 1,4-dioxane biodegradation.

114 lts will have implications for selecting 1,4-dioxane bioremediation strategies at sites where chlorin

115 This characterization of the dioxane biosynthetic pathway sets the basis for the util

116 -borane adduct showed enhanced reactivity in dioxane but low reactivity in dichloromethane.

117 ed ring-opening of cyclic 1,3-dioxolanes and dioxanes by trimethylsilyl alkynes to set diol-derived p

118 Also, 1,3-dioxane can be distinguished from 1,4-dioxane.

119 luene together with solvents such as THF and dioxane can be heated way above their boiling point in s

120 Replacement of the (2,3-dihydro-benzo[1,4]dioxane)-carbonyl moiety of doxazosin with aryl-sulfonyl

121 C12,N13-bridged tetrahydrofuran, pyran, and dioxane compounds 10-13.

122 than those with THM at impacted sites, where dioxane concentration is relatively low (e.g., 250 to 10

123 were primarily responsible for elevated 1,4-dioxane concentrations in the Cape Fear River watershed.

124 1,4-Dioxane concentrations measured in drinking water and co

125 1,4-Dioxane concentrations ranged from <0.15 mug/L in nonimp

126 In WWTP effluent, 1,4-dioxane concentrations varied widely, with a range of 1.

127 p < 0.05) in source-zone samples with higher dioxane concentrations, suggesting selective pressure by

128 in situ treatments to mitigate 1,4-dioxane (dioxane) contamination.

129 d by isotope dilution using mass-labeled 1,4-dioxane-d8 as internal standard.

130 Various cryptands based on 1,3-dioxane decorated 1,3,5-trisubstituted-benzene building

131 Dioxane decreases the observed rate of carbene reaction

132 oxygenase genes that are likely involved in dioxane degradation and suggests their usefulness as bio

133 The 1,4-dioxane degradation process was driven by pure cultures

134 oborated the vital role of monooxygenases in dioxane degradation.

135 ntial role in the initiation of 1,4-dioxane (dioxane) degradation.

136 Hydrogen peroxide and 1,4-dioxane degradations were maximized near -0.18 and + 0.0

137 Thus, dioxane degraders expressing PRM may be more physiologic

138 to dioxane since 1980s revealed that various dioxane-degrading SDIMO genes were widespread, and PCR-D

139 A catalytic system involving DAPCy in dioxane demonstrates a temperature-dependent reactivity

140 A new d-erythrose 1,3-dioxane derivative was synthesized from d-glucose and fo

141 y, we linked an antiinflammatory moiety (1,3-dioxane derivative) to the key pharmacophoric moiety of

142 Additionally, omega-dioxane derivatives displayed favorable GC-MS behavior,

143 nted reaction is proposed to proceed via 1,2-dioxane derivatives, which decompose under formation of

144 The dioxane--dichloroborane adduct showed remarkable selecti

145 or position (C(2) or C(6)), and solvent (1,4-dioxane, dichloromethane, acetonitrile, methanol, and in

146 uch as tetrahydrofuran, tetrahydropyran, 1,4-dioxane, diethyl ether, tetrahydrothiophene, and 1,3-dit

147 efficient in situ treatments to mitigate 1,4-dioxane (dioxane) contamination.

148 heir potential role in the initiation of 1,4-dioxane (dioxane) degradation.

149 op appropriate management strategies for 1,4-dioxane (dioxane) due to its widespread occurrence and p

150 asmenylcholines via a tandem reductive vinyl dioxane/dioxolane ring opening and alkyliodide coupling

151 uptake and the surface area in the resulting dioxane-directed crystals.

152 Inclusion of dioxane directs the crystal packing for these cages away

153 d: a 3,5-bis-CF3 phenyl group at C(5) in 1,3-dioxane displays a pronounced preference for the axial o

154 probing of the conformational equilibria in dioxane, dithiane, and diselenane analogues by variable-

155 (5):eta(5)-Cp)Re(BDI)](3) (1.L, L = THF, 1,4-dioxane, DMAP).

156 When 1,4-dioxane/DMF mixture was used as the common solvent and w

157 riate management strategies for 1,4-dioxane (dioxane) due to its widespread occurrence and perceived

158 1,4-Dioxane effects chlorination of oxidation-labile aromati

159 Sodium methoxide in dioxane effects rearrangement-displacements of 14 (X = B

160 ct the conformational energy of a 5-aryl-1,3-dioxane: electron-withdrawing substituents decrease the

161 neration was influenced, and CH(3)CN and 1,4-dioxane emerged as the optimum solvents.

162 lly isomeric 2,2-diaryl-cis-4,6-dimethyl-1,3-dioxane epimers, X-ray crystallography, (1)H NOESY analy

163 Dioxane, ethyl acetate, and beta-chloroethyl ether form

164 cluding background groundwater with no known dioxane exposure history.

165 lyst conducted with a solution of ammonia in dioxane form primary arylamines from a variety of aryl e

166 selected oxygen-containing Lewis bases, only dioxane forms stable and reactive mono- and dichlorobora

167 ation of mono- and dichloroborane adducts of dioxane from dioxane-BCl(3) and NaBH(4) in the presence

168 Reaction of 4(*) with GeCl2.dioxane gives an anionic germanium(IV)-bis(dithiolene) c

169 B-induced dimeric capsule with entrapped 1,4-dioxane guest molecules.

170 L1 or L2 and the biphasic solvent system 1,4-dioxane/H(2)O.

171 e protease subtilisin Carlsberg in anhydrous dioxane has been determined to 2.6-A resolution.

172 show that an organic directing solvent, 1,4-dioxane, has a dominant effect on the lattice energy for

173 photostabilities in a selected solvent, 1,4-dioxane, have been investigated using a frequency double

174 used to manage some but not necessarily all dioxane-impacted sites.

175 The addition of a small amount of dioxane in CFCl(2)CF(2)Cl extends the lifetime of the ca

176 binding affinities have been identified for dioxane in CyP(6)Q[6] and adamantyl NH(3)(+) in CyP(7)Q[

177 FT modeling elucidated the importance of 1,4-dioxane in dissociating the KO(t)Bu tetramer for reactio

178 ual solvents inhibited biodegradation of 1,4-dioxane in the following order: 1,1-dichloroethene (1,1-

179 romoting 98.5% aerobic biodegradation of 1,4-dioxane in the O(2)-MBfR.

180 n pure THF and with increasing the amount of dioxane in THF.

181 es with alkyl aldehydes provides the syn-1,3-dioxanes in a highly efficient and stereoselective manne

182 sulfonic acid in aqueous medium delivers 1,3-dioxanes in high yield.

183 ompounds such as ethyl pyruvate, furfural or dioxanes in higher concentration.

184 ged compounds were comparable to neutral 1,4-dioxane, indicating that degradation occurs by (.)OH gen

185 1,4-Dioxane is a likely human carcinogen, and an excess 10(-

186 1,4-Dioxane is a persistent and mobile organic chemical that

187 roxylamine (NbzONH(2)) and sodium hydride in dioxane is a superior reagent combination for this purpo

188 1,4-dioxane is an emerging groundwater contaminant with sign

189 ttenuation or enhanced biodegradation of 1,4-dioxane is being considered for contaminated groundwater

190 The carcinogenic cyclic ether compound 1,4-dioxane is employed as a stabilizer of chlorinated indus

191 tric cyclopropanation of styrene by 8 in 1,4-dioxane is first-order in both copper carbene 8 and styr

192 nmental Protection Agency data show that 1,4-dioxane is frequently detected in U.S. drinking water de

193 f the persistent groundwater contaminant 1,4-dioxane is often hindered by the absence of dissolved ox

194 l groundwater treatments, remediation of 1,4-dioxane is often limited to costly ex situ UV-based adva

195 1,4-Dioxane is released into the environment as industrial w

196 he reaction between AMS and 1 (80 degrees C, dioxane) is first order in both alkene and 1.

197 eries of anancomeric 2-tert-butyl-5-aryl-1,3-dioxane isomers demonstrates that remote substituents on

198 ith volatile molecules, such as pyrazine and dioxane, leads to materials that exhibit at least three

199 Individual members of the 1,3-dioxane library have activity in a variety of phenotypic

200 13 < 8 < 14 congruent with 19-21 and CCl4 < dioxane < MeCN < t-BuOH < MeCN:phosphate buffer (3:1 v/v

201 and N-aryl-isoindolinones were prepared by a dioxane-mediated oxidation of isoindoline precursors.

202 Dioxane metabolism can be initiated by two catabolic enz

203 Dioxane mineralization ceased after 7 days and was resum

204 of solution hydrophobicity by means of water/dioxane mixtures yielded results similar to those for ca

205 ilization of C-C bound ribose, dioxolane and dioxane moieties in the generation of improved biologica

206 drate-like 4'-hydroxy-5'-hydroxymethyl-2',7'-dioxane moiety attached to the aglycone via a carbon-car

207 sugar-like 4'-hydroxy-5'-hydroxymethyl-2',7'-dioxane moiety attached via a carbon-carbon bond to the

208 Two of the bound dioxane molecules are in the active-site region, one in

209 The other five dioxane molecules are located on the surface of subtilis

210 The latter structure contains four 1,4-dioxane molecules from the crystallization solution, one

211 Seven enzyme-bound dioxane molecules have been detected, each potentially f

212 nding" domain of EthR is occupied by two 1,4-dioxane molecules, a component of the crystallisation bu

213 Accordingly, dioxane-monochloroborane should serve as a reagent of ch

214 The dioxane--monochloroborane adduct hydroborates representa

215 droboration of several terminal olefins with dioxane--monochloroborane were highly regioselective and

216 P production and down-regulation of both 1,4-dioxane monooxygenase (dxmB) and aldehyde dehydrogenase

217 2 (Cl)Ge:] 1 with sodium phosphaethynolate [(dioxane)n NaOCP].

218 been prepared, along with their adducts with dioxane Na[H(3)B-NRR'-BH(3)](diox)(x) where x = 0.5 or 1

219 d suggests their usefulness as biomarkers of dioxane natural attenuation.

220 The method was applied to investigate 1,4-dioxane occurrence and sources in the Cape Fear River wa

221 To support 1,4-dioxane occurrence investigations, source identification

222 quantum yield, or lifetime of 2AP in either dioxane or DMF.

223 tigated in binary mixtures of water with 1,4-dioxane or N,N-dimethylformamide (DMF).

224 In dioxane or THF solvent, LFP produces the corresponding e

225 sium hydroxide as base in a two-phase (water/dioxane or water/acetonitrile) process to provide modera

226 analytical method capable of quantifying 1,4-dioxane over a wide concentration range in a broad spect

227 ethylsilyloxymethyl-5-methylene-2-phenyl-1,3-dioxane, primary-selective phosphorylation, and cleavage

228 f a series of 4-substituted 2-iodomethyl-1,3-dioxanes proceeds rapidly and regioselectively to afford

229 Anancomeric 5-phenyl-1,3-dioxanes provide a unique opportunity to study factors t

230 solvent of low polarity (such as toluene or dioxane) provide especially high (> 80%) isolated yields

231 h 1.4 mg/L as Cl(2) chloramines, 0.5 log 1,4-dioxane removal was achieved in 13.2 min with 7 mM salts

232 For ROP without chloramines, 0.5 log 1,4-dioxane removal was achieved in 6.7 min with 7 mM salts

233 d by the reaction of 2 with Na(2)[Fe(CO)(4)].dioxane, represents an unusual "dual reduction" of the i

234 ults of photostability study in nonpolar 1,4-dioxane revealed the remarkable enhancement in stability

235 in tetrahydrofuran, acetonitrile (ACN), and dioxane reveals that isomers with similar molecular weig

236 rate that the phenyl prefers to lie over the dioxane ring in order to position an ortho-hydrogen to p

237 one-dimensional polymeric forms based on 1,4-dioxane rings in P2/c LiCO2, and the C(O(-))2 moieties i

238 lopropane 2a, containing two spiro-fused 1,3-dioxane rings, with MeLi gave only the methylation produ

239 acophore models and highlighted that the 1,4-dioxane scaffold is compatible with potent antagonist ac

240 ng the methyl group in position 6 of the 1,4-dioxane scaffold of the potent M(2)/M(3) muscarinic agon

241 and diastereospecific synthesis of a new 1,3-dioxane series of active analogues.

242 Microcosm assays with (14)C-labeled dioxane showed that the highest mineralization capacity

243 p) analysis of Arctic groundwater exposed to dioxane since 1980s revealed that various dioxane-degrad

244 orms undergo self-assembly in water or water/dioxane solution to give a variety of nanostructures.

245 m benzylate and sodium neopentoxide to NO in dioxane solution.

246 in glacial acetic acid (1Ea and 1Zc) and in dioxane solutions containing HCl, trifluoromethanesulfon

247 ino 2 isomers were determined in aqueous and dioxane solutions.

248 The dioxane-solvated NaHMDS only partially deaggregates to m

249 In dioxane solvent, however, iodomethane yields exclusively

250 lates and small amounts of nitromethane in a dioxane solvent, thereby reducing the hazards associated

251 edian value of all statistically significant dioxane source attenuation rates (equivalent half-life =

252 initial formation of dimeric 2,5-diamino-1,4-dioxane species, which were hydrolyzed in situ to the fi

253 The locations of the bound solvent in the dioxane structure are distinct from those in the structu

254 prevented lignin condensation by forming 1,3-dioxane structures with lignin side-chain hydroxyl group

255 In addition, a series of dioxane substitutions was designed and tested.

256 es C) in selected solvents, tetrahydrofuran, dioxane, tert-butyl methyl ether, n-pentane and dichloro

257 rsatile, which breaks down cyclic molecules (dioxane, tetrahydrofuran, and cyclohexane), as well as c

258 e quarterthiophene in a 2:1:1 mixture of 1,4-dioxane/tetrahydrofuran/toluene leads to self-assembly o

259 In dioxane, the K(trans/cis) values for AcProOMe, Ac-4R-Flp

260 For reactions of 14 with sodium methoxide in dioxane, the migratory aptitudes at 23 degrees C are p-C

261 broad range of chiral 1,2-dioxolanes and 1,2-dioxanes, thereby facilitating biological and medicinal

262 )][B(C(6)F(5))(4)] (3), [Mg(C(3)H(5))(2)(1,4-dioxane)(THF)] (2), [KMg(C(3)H(5))(3)(THF)] (6), and [MM

263 alodorous compounds were 2,5,5-trimethyl-1,3-dioxane (TMD) and 2-ethyl-5,5-dimethyl-1,3-dioxane (2EDD

264 expect an axial phenyl group at C(5) of 1,3-dioxane to adopt a conformation similar to that in axial

265 e, diyne 6 reacted with p-tolunitrile in 1,4-dioxane to give 7p and 7m (7:1 ratio) in 87% yield at a

266 ence of an imidazole/LiCl catalyst system in dioxane to provide the adducts possessing a syntheticall

267 -1) undergoes reaction with anhydrous HCl in dioxane to yield predominantly ( approximately 94%) a si

268 O(3)/GAC improved the removal of 1,4-dioxane to ~40%, while BAF increased the removal to ~50%

269 solvents, such as tert-butyl alcohol and 1,4-dioxane, to increase their solubility in the lyophilizat

270 ogy for in situ and ex situ treatment of 1,4-dioxane under a wide range of environmental conditions.

271 nc dust, and a catalytic amount of iodine in dioxane under high-intensity ultrasound (HIU) irradiatio

272 ified the D-ribose-5-phosphate origin of the dioxane unit and demonstrated that AlnA and AlnB are res

273 nsively investigated the biosynthesis of the dioxane unit through (13)C labeling studies, gene inacti

274 The role of the 1,3-dioxane units was targeted to ensure the preorganization

275 hort-chain alkanes and ethene in addition to dioxane, unraveling its pivotal role in aerobic biostimu

276 ncies of greater than 97% degradation of 1,4-dioxane, up to 4.6 times higher than noncatalyzed electr

277 Quantification of 1,4-dioxane was accomplished by isotope dilution using mass-

278 to prepare a PCL solvent based ink and 1, 4-dioxane was chosen with the consideration of both solubi

279 dioxanivorans CB1190 with 3.0 V applied, 1,4-dioxane was oxidized 2.5 times faster than in bioaugment

280 an isochromanone from which the bridged 1,3-dioxane was readily assembled.

281 as tetrahydrofuran, tetrahydropyran, and 1,4-dioxane was studied.

282 upled to electrolysis, biodegradation of 1,4-dioxane was sustained even in the presence of the common

283 0-tetrahydrobenzo [a]pyrene (2) in water and dioxane-water mixtures have been determined over a pH ra

284 of reaction as a function of pH in water and dioxane-water solutions are reported.

285 he hydrolysis of cis-chlorohydrin 9 in 10:90 dioxane-water solutions yields the same ratio of tetrols

286 tion of sodium chloride concentration in 1:1 dioxane-water solutions.

287 1,2,3-triazoles (4a-c) have been measured in dioxane/water at different temperatures in a large range

288 trans chlorohydrins, have been determined in dioxane/water solutions.

289 l for GS-CH(2)Cl, range between 1 s(-1) (1:1 dioxane/water) and 64 s(-1) (1:10 dioxane/water).

290 s(-1) (1:1 dioxane/water) and 64 s(-1) (1:10 dioxane/water).

291 ligomeric silsesquioxane (FPOSS) cage in 1,4-dioxane/water.

292 Here, 1,2-dioxanes were synthesized with their corresponding tetra

293 yme (E) give a peak at 41.3 ppm (relative to dioxane) which represents the Cys42-sulfenic acid.

294 The reactions are also conducted in THF or dioxane, which greatly simplifies product isolation rela

295 t option for removing pollutants such as 1,4-dioxane, which is difficult to remove by using conventio

296 u(OTf) (1) with Na(OCP)(diox)(2.5) (diox=1,4-dioxane), while the isoelectronic ate-complex [Na(15-cro

297 f GAC during ozonation) removed 6-11% of 1,4-dioxane, while BAF increased the removal to ~25%.

298 Treatment of GeCl2(dioxane) with Li2(TPP)(OEt2)2 (TPP = tetraphenylporphyri

299 henyl)imidazol-2-ylidene (IPr)), towards [Na(dioxane)x ][PnCO] (Pn=P, As) is described.

300 nd Zn(II)(OEP); five-coordinate hosts, micro-dioxane)[Zn(II)(OEP)](2) and (py)Zn(II)(OEP); six-coordi