2259-85-0Relevant academic research and scientific papers
An Environmentally Sustainable Mechanochemical Route to Hydroxamic Acid Derivatives
Mocci, Rita,De Luca, Lidia,Delogu, Francesco,Porcheddu, Andrea
supporting information, p. 3135 - 3144 (2016/10/09)
An operationally simple, and cost efficient conversion of carboxylic acids into hydroxamic acid derivatives via a high-energy mechanochemical activation is presented. This ball milling methodology was applied to a wide variety of carboxylic acids dramatically improving purification issues associated with this class of molecules, which still remain one of the main bottlenecks of classical methodologies. (Figure presented.).
Studies of Collectors. IX. The Flotation of a Trace Amount of Uranium by Using 2-(Alkylamino)propionohydroxamic Acid and Cotelomer-Type Surfactants Bearing Hydroxyaminocarbonyl and Pyridyl Groups
Koide, Yoshifumi,Uchino, Masazumi,Yamada, Kimiho
, p. 3477 - 3484 (2007/10/02)
Chelating surfactants bearing hydroxyaminocarbonyl and amino groups (RnAHx) and cotelomer-type surfactants bearing hydroxyaminocarbonyl and pyridyl groups (Ls-VP-Q-Hx) were prepared and applied as flotation collectors for a trace amount of uranium.The uranium in an aqueous of pH 4-8 and in seawater was floated more effectively by ion flotation using RnAHx or by foam fractionation using Ls-VP-Q-Hx, compared with alkylhydroxamic acid (RnHx) and telomers bearing hydroxyaminocarbonyl groups (Lo-Hx).The effective floation was concluded to be due to the chelate effects between the two groups on the complex formation and to the HLB of the resulting complex.Furthermore, the uranium recoveries were examined by using a hydroxamic acid polymer (62Hx), a N-methylhydroxamic acid telomer (Ls5.6MHx), and its cotelomer (Ls3.2VP4.5MHx).
Hydroxamates
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, (2008/06/13)
Hydroxamates are provided having the structure STR1 wherein R1 is hydrogen, lower alkyl, aryl, lower alkenyl, cycloalkenyl, aralkyl, or STR2 wherein n is 1 to 4 and X is hydroxy, alkoxy, amino, C1 -C4 -alkylamino or C1 -C4 -dialkylamino. R2 is hydrogen or lower alkyl; and R3 is C1 -C20 alkyl or C3 -C20 alkenyl, aryl, aryl-alkyl, cycloalkyl, aryl-alkenyl, lower alkoxy, lower alkenyloxy, aryl-alkoxy or cycloalkyloxy, and m is 0 to 5. These compounds are useful as inhibitors of Δ5 -lipoxygenase and as such are useful as antiallergy agents.
