methoxyl


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me·thox·yl

(me-thok'sĭl),
The group, -OCH3.

me·thox·yl

(me-thok'sil)
The group, -OCH3.
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References in periodicals archive ?
H-3 (I' 3.39 and 3.42) exhibited weak HMBC correlations with C-2 (I' 86.7) and C-4 (I' 125.3), whereas, methoxyl proton was correlated with C-1 (I' 172.1).
The m/z 120 gave an idea about the presence of methoxyl phenyl group and the other fragment obtained by this partial disintegration resulted in the occurrence of a peak at 201 m/z due to N2C15H11 fragment.
In general, many functional groups have been mentioned to carry out the reduction and stabilization of metal nanoparticles (Ag-NPs, Au-NPs, and FeO-NPs) by bacterial EPS such as hydroxyl, carboxyl, ester, aldehydes, methoxyl, sulfated, phosphate, amino, amide, and N-acetylated sugar molecules that possess negative charge and interact with metal ions by electrostatic attractive forces, thereby producing metal nanoparticles as described above [33, 87, 88, 90, 91, 103].
The fluorescence maximum at 350 nm are indicative of relatively simple and less-conjugated aromatic structural features, with the conjugated chromophores and electron-donating substituents (such as hydroxyl, methoxyl, and amino groups) contributing to the fluorescence in shorter wavelength regions.
Presence of hydroxyl groups enhanced the mobility of a molecule and thus reduced retention time while compounds with methoxyl (-OC[H.sub.3]) groups exhibited higher retention times due to their lower mobility [37].
[39] reported that the RLAR inhibitory effects of flavonoid derivatives depend on the number and site of hydroxyl, methoxyl, and sugar moieties in the aromatic ring of the flavonoid skeleton [39].
With the huge development in film processing, the films made of carrot fiber and commercially low methoxyl pectin were developed, and the effect of different sizes on the performance of composite films was explored [2].
A weak Pearson correlation was observed between AAI and TPC (r = 0.25) suggesting a partially formed quinone or lactone due to the steric position of the hydroxyl or methoxyl groups [37, 38].
The nucleophilicity of [H.sub.2]O is smaller than that of methoxyl. Therefore, the reaction slowly occurs between DMP and [H.sub.2]O without catalyst, so slowly so that the reaction cannot be noticed.
cladodes are considered to be very important elements for their physical properties because the main cell wall polysaccharide consists of low methoxyl pectin [19].
The two aromatic phenol rings which are connected by two sets of [alpha],[beta]-unsaturated carbonyl groups are good Michael acceptor and interact with a range of biologically reactive species including glutathione and other nucleophiles, while the aryl methoxyl groups at the ortho position to the hydroxyl moiety as well as the conjugated [beta]-diketone moieties of curcumin are important structural features for the various pharmacological activities of these compounds [127].