Showing 1-20 of 20 results for "138827"
Nicolas Kern et al.
The Journal of organic chemistry, 77(20), 9227-9235 (2012-09-26)
The p-methoxybenzyl protecting group (PMB) on various alcohols and an acid was efficiently and selectively cleaved by the action of a catalytic amount of silver(I) hexafluoroantimonate combined with 0.5 equiv of 1,3,5-trimethoxybenzene in dichloromethane at 40 °C.
Dongqiang Zhu et al.
Environmental science & technology, 39(11), 3990-3998 (2005-06-30)
Environmental black carbon (BC) is believed to be an important adsorbent of organic pollutants. In this study, we examined the effects of changes in surface properties and adsorbate structure. A series of apolar compounds (cyclohexane, 1,2-dichlorobenzene, 1,4-xylene, 1,2,3,5-tetramethylbenzene, 1,3,5-triethylbenzene) and...
Torgny Rundlöf et al.
Journal of pharmaceutical and biomedical analysis, 93, 111-117 (2013-11-12)
Standards are required in quantitative NMR (qNMR) to obtain accurate and precise results. In this study acetanilide was established and used as a primary standard. Six other chemicals were selected as secondary standards: 3,4,5-trichloropyridine, dimethylterephthalate, maleic acid, 3-sulfolene, 1,4-bis(trimethylsilyl)benzene, and...
Eino Mvula et al.
Environmental science & technology, 43(16), 6275-6282 (2009-09-15)
The lignin models anisole, 1,2-dimethoxybenzene, 1,4-dimethoxybenzene, and 1,3,5-trimethoxybenzene were reacted with ozone in aqueous solution, and major products were identified and quantified with respect to ozone consumption when reference material was available. Hydroxylation products in yields equivalent to those of...
[Spasfon].
P Lange
Soins. Gynecologie, obstetrique, puericulture, pediatrie, (18)(18), 43-43 (1982-11-01)
[Effects of liver disease and age on metabolism of trimethoxybenzene (author's transl)].
P Allain et al.
Therapie, 35(5), 591-595 (1980-09-01)
A N Mayeno et al.
The Journal of biological chemistry, 264(10), 5660-5668 (1989-04-05)
Human eosinophils preferentially utilize bromide to generate a brominating agent, even at physiological halide concentrations, where chloride (140 mM) is over 1000-fold greater than bromide (20-100 microM). Under the same conditions, neutrophils use chloride to generate a chlorinating agent. The...
E Lucien et al.
The Journal of organic chemistry, 66(13), 4576-4579 (2001-06-26)
We report that the photodeoxygenation of 1,2-benzodiphenylene sulfoxide, 1, generates an intermediate capable of oxidizing the solvent benzene to phenol. The reactivity of the intermediate was probed with various substrates (2-methylbutane, chloride ion, and para-substituted aryl sulfides). The intermediate produced...
M Saeed Arayne et al.
Pakistan journal of pharmaceutical sciences, 18(4), 7-12 (2005-12-29)
A simple, sensitive, reliable, and rapid high-performance liquid chromatographic method for the simultaneous determination of phloroglucinol and trimethyl phloroglucinol has been developed. Acetonitrile-water (1:1 v/v) was used as mobile phase, with flow rate 2 ml/minutes. pH was adjusted to 3...
Robert A Moss et al.
The journal of physical chemistry. A, 114(1), 209-217 (2009-11-03)
Dichlorocarbene (CCl(2)), generated by laser flash photolysis of dichlorodiazirine, formed pi- and O-ylidic complexes with aromatic ethers such as anisole, 1,3-dimethoxybenzene, 1,3,5-trimethoxybenzene, dibenzofuran, and dibenzo-18-crown-6 and with the aromatic ester phenyl acetate. These complexes were visualized by UV-vis spectroscopy, and...
Claire M Ervin et al.
Reviews on recent clinical trials, 8(1), 9-22 (2012-11-08)
Irritable bowel syndrome (IBS) is one of the most common gastrointestinal disorders and it is characterized by episodes of abdominal pain and altered bowel functions. The specific bowel disturbances of diarrhea, constipation or an alternation between the two defines the...
Xichen Cai et al.
The journal of physical chemistry. A, 111(22), 4743-4747 (2007-05-08)
Bimolecular hole transfer quenching of the 1,3,5-trimethoxybenzene radical cation (TMB*+) in the excited state (TMB*+*) by hole quenchers (Q) such as biphenyl (Bp), naphthalene (Np), anisole (An), and benzene (Bz) with higher oxidation potentials than that of TMB was directly...
Tao Fang et al.
Journal of the American Chemical Society, 134(17), 7545-7552 (2012-04-06)
The development of selectively protected monosaccharide building blocks that can reliably be glycosylated with a wide variety of acceptors is expected to make oligosaccharide synthesis a more routine operation. In particular, there is an urgent need for the development of...
Ru-Jin Huang et al.
Journal of chromatography. A, 1210(2), 135-141 (2008-10-14)
Reactive iodine species have been suggested to play an important role in the atmosphere (e.g. tropospheric ozone depletion, coastal new particle formation). However, there still exist major uncertainties about their atmospheric chemistry, mostly due to the lack of analytical approaches...
Simon J Dunne et al.
Drug testing and analysis, 9(5), 734-743 (2016-07-13)
Herbal smoking blends containing synthetic cannabinoids have become popular alternatives to marijuana. These products were previously sold in pre-packaged foil bags, but nowadays seizures usually contain synthetic cannabinoid powders together with unprepared plant materials. A question often raised by the...
Gabriel Scalliet et al.
FEBS letters, 523(1-3), 113-118 (2002-07-19)
In Chinese rose species and in many modern varieties, two methylated phenolic derivatives, 3,5-dimethoxytoluene and 1,3,5-trimethoxybenzene, are major scent components. We show that cell-free extracts of rose petals catalyse the synthesis of 3,5-dimethoxytoluene and 1,3,5-trimethoxybenzene by methylation of precursor molecules....
Xichen Cai et al.
The journal of physical chemistry. A, 111(10), 1788-1791 (2007-02-14)
One-electron oxidation of alcohols such as methanol, ethanol, and 2-propanol by 1,3,5-trimethoxybenzene radical cation (TMB*+) in the excited state (TMB*+*) was observed during the two-color two-laser flash photolysis. TMB*+ was formed by the photoinduced bimolecular electron-transfer reaction from TMB to...
Martin A Fascione et al.
Carbohydrate research, 348, 6-13 (2011-12-28)
Novel oxathiane spiroketal donors have been synthesised and activated via an umpolung S-arylation strategy using 1,3,5-trimethoxybenzene and 1,3-dimethoxybenzene. The comparative reactivity of the resulting 2,4,6-trimethoxyphenyl (TMP)- and 2,4-dimethoxyphenyl (DMP)-oxathiane spiroketal sulfonium ions is discussed, and their α-stereoselectivity in glycosylation reactions...
Shuiqin Wu et al.
Plant physiology, 135(1), 95-102 (2004-05-04)
1,3,5-Trimethoxybenzene is a key component of the Chinese rose odor. This compound is synthesized in three successive methylation steps from phloroglucinol, the initial precursor. A novel, to our knowledge, phloroglucinol O-methyltransferase (POMT) characterized here methylates the first step to produce...
O Chassany et al.
Alimentary pharmacology & therapeutics, 25(9), 1115-1123 (2007-04-19)
Abdominal pain is the predominant symptom in irritable bowel syndrome patients. Phloroglucinol and its methylated derivative are antispasmodic agents acting on smooth muscle. To evaluate the efficacy of phloroglucinol/trimethylphloroglucinol on pain intensity during an acute exacerbation of pain of irritable...

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