Results 271 to 280 of about 557,393 (318)

10-Methyl- and 9,10-dimethylacridinium methyl sulfate

Acta Crystallographica Section C Crystal Structure Communications, 2002
The title compounds, C(14)H(12)N(+).CH(3)O(4)S(-), (I), and C(15)H(14)N(+).CH(3)O(4)S(-), (II), respectively, crystallize with the planar 10-methylacridinium or 9,10-dimethylacridinium cations arranged in layers, parallel to the twofold axis in (I) and perpendicular to the 2(1) axis in (II).
Joanna, Meszko, Artur, Sikorski, Olexyj M, Huta, Antoni, Konitz, Jerzy, Błazejowski   +4 more
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Histone Methylation: Recognizing the Methyl Mark

2003
Publisher Summary Histone N-terminal tails are subject to a variety of covalent modifications that ultimately affect chromatin structure. One such modification is N-methylation, which occurs on Lys (K) and Arg (R) amino acids. The enzymes performing these modifications are the histone N-methyl transferases (HMTs) that catalyze the transfer of a ...
Andrew J, Bannister, Tony, Kouzarides
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Monoepoxidation of methyl linoleate: (±)‐methyl vernolate and (±)‐methyl coronarate

Journal of the American Oil Chemists' Society, 1968
AbstractThe two monoepoxides resulting from the epoxidation of methyl linoleate with monoperphthalic acid have been separated from each other by column chromatography. Degradation reactions on each of these established that the separation occurred without concomitant rearrangement of the double bond or the epoxide ring.
M. Ferrari, E. L. Ghisalberti, U. M. Pagnoni, F. Pelizzoni   +3 more
openaire   +1 more source

Methyl Alcohol

International Journal of Toxicology, 2023
The Expert Panel for Cosmetic Ingredient Safety reviewed updated information that has become available since their original assessment from 2001, along with updated information regarding product types, and frequency and concentrations of use, and reaffirmed their original conclusion that Methyl Alcohol is safe as used to denature alcohol in the ...
Preethi S, Raj, Wilma F, Bergfeld, Donald V, Belsito, David E, Cohen, Curtis D, Klaassen, Allan E, Rettie, David, Ross, Thomas J, Slaga, Paul W, Snyder, Susan, Tilton, Monice, Fiume, Bart, Heldreth   +11 more
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Methyl(trifluoro-methyl)dioxirane

2005
A review of the article Methyl(trifluoro-methyl)dioxirane.
Jack K. Crandall, Ruggero Curci, Lucia D'Accolti, Caterina Fusco   +3 more
openaire   +3 more sources

High-Temperature Measurements of the Reactions of OH with Small Methyl Esters: Methyl Formate, Methyl Acetate, Methyl Propanoate, and Methyl Butanoate

The Journal of Physical Chemistry A, 2012
The overall rate constants for the reactions of hydroxyl radicals (OH) with four small methyl esters, namely methyl formate (CH(3)OCHO), methyl acetate (CH(3)OC(O)CH(3)), methyl propanoate (CH(3)OC(O)C(2)H(5)), and methyl butanoate (CH(3)OC(O)C(3)H(7)), were investigated behind reflected shock waves using UV laser absorption of OH radicals near 306.69 ...
King-Yiu, Lam, David F, Davidson, Ronald K, Hanson   +2 more
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METHYLATION AND MOOD

The Lancet, 1984
S-adenosylmethionine (SAM) has antidepressant properties. The commonest neuropsychiatric complication of severe folate deficiency is depression. These independent observations suggest that methylation in the nervous system may underlie the expression of mood and related processes and may be implicated in some affective disorders; suggest new biological
E H, Reynolds, M W, Carney, B K, Toone
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Methylation of Methyl 6-Hydroxydehydroabietate

Journal of the American Chemical Society, 1945
Tl4s inventiop relates to a process for methylating methyl 6-hydroxydehydroabietate, which is commonly represented by the following structural forCSula: CHs 0-OCHs CH, 3T ConH OH Methylation of -this compound has been performed heretofore by reacting the compound with dimethyl sulfate in an...
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Methylation of phenol by methyl formate

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1989
In the presence of ZnCl2 and ZrO2, methyl formate methylates phenol to anisole with a high degree of selectivity.
V. A. Nasadyuk, E. V. Fedevich, Yu. A. Pazderskii, I. I. Moiseev   +3 more
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Partial methylation of methyl glycosides

Chemistry of Natural Compounds, 1975
The partial methylation of methyl xylo-, arabino-, lyxo- and rhamnopyranosides by Purdie's method has been studied; it is possible to use the results obtained for the isolation of individual methyl ethers by micro-preparative GLC.
E. V. Evtushenko, Yu. S. Ovodov
openaire   +1 more source