نتایج جستجو برای: maltol
تعداد نتایج: 162 فیلتر نتایج به سال:
a series of 3- hydroxypyridin -4-one derivatives (hpos) as bidentate iron (iii) chelating agents were synthesized from 3- hydroxypyran -4-ones (maltol and ethyl maltol) in three steps through protection of hydroxyl group . the protected compounds were then reacted with suitable primary amines to give benzylated pyridinones . finally, the benzyl group was removed by catalytic hydrogenation to pr...
Two novel maltol-based ionic liquids, namely [A336][Mal] and [C101][Mal], were synthesized as potential extracting agents for radionuclides from water. These two room temperature task-specific ionic liquids could be easily prepared by anion metathesis starting from commercially available materials. The isolated compounds were characterized by standard analytical methods. Their application as ex...
The speciations of two drug candidate ligands, 2-hydroxypyridine-N-oxide (Hhpno) and 2-mercaptopyridine-N-oxide (Hmpno), with vanadate (V(V)) were determined at 25.0 degrees C and 0.20 mol dm(-3) KCl by pH-metric and (51)V-NMR methods. At pH 7.4, the two predominant compounds with both ligands are the VO(2)L(2) and VO(2)L(OH). NH(4)[VO(2)(hpno)(2)] x 3 H(2)O was prepared in solid form, and its ...
Electronic nicotine delivery systems (ENDS) utilize “e-liquids” in order to generate “e-vapor”, an inhalable aerosolized mixture containing and flavors. Flavored ENDS are very popular among teens who vape, however, the possible cardiac electrophysiological harm of inhalation exposure flavored not fully understood. To test if flavoring carbonyls e-liquids compromises mitochondrial integrity, inc...
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