2921-20-2Relevant articles and documents
Metal extracting agent containing sulfoxide group and preparation method thereof
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Paragraph 0050; 0051; 0052, (2017/07/04)
The invention discloses a metal extracting agent containing a sulfoxide group and a preparation method thereof. The metal extracting agent containing the sulfoxide group is 2-(alkylsulfinyl)-N-((tetrahydrofuran-2-yl)methyl)acetamide. According to the preparation method, thioalcohol is used as a raw material, reacts with chloroacetic acid in an alkaline condition to generate corresponding thioether; afterwards, the corresponding thioether is oxidized through hydrogen peroxide in an organic-acid environment to obtain sulfoxide; the sulfoxide reacts with 2-tetrahydrofurfuryl amine in highly-acidic and high-temperature conditions, so as to generate corresponding amide. The metal extracting agent containing the sulfoxide group, which is provided by the invention, is high in the safety to an environment and an organism, is low-toxicity, is good in wettability, high in foaming capacity and liable in biodegradation, and has quite good extraction effects on rare earth metals thulium, ytterbium and lutetium in a weakly acidic condition.
NATURAL LIPIDS CONTAINING NON-OXIDIZABLE FATTY ACIDS
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Paragraph 00324-00328, (2016/02/18)
Provided herein is technology relating to natural lipids containing non-β-oxidizable fatty acids and particularly, but not exclusively, to compositions and methods related to the production and use of natural lipids containing non-β-oxidizable fatty acids.
Synthesis and characterization of some novel higher C,N-diphenyl nitrones, isoxazolines, and mercaptobenzimidazoles as oleochemicals
Yldrm,Cetin
experimental part, p. 952 - 964 (2012/08/07)
Some novel long-chain nitrones, isoxazolines, and (1H-benzo[d]-imidazol-2- ylthio) derivatives were synthesized. Nitrones, N-{4-[2-(tetradecylthio)acetoxy] benzylidene}aniline oxide, and N-[4-(12-oxo-2,5,8,11-tetraoxadocosan-22-yloxy) benzylidene]aniline oxide were prepared via the reaction of -phenylhydroxylamine with the corresponding aromatic aldehydes. The isoxazolines were prepared from undec-10-en-1-ol and benzonitrile-N-oxide which was generated in situ. The 1H-benzo[d]-imidazol-2-ylthio derivatives were synthesized via the replacement reaction of -bromo esters and 2-mercaptobenzimidazole.