3 results about "Acetylferrocene" patented technology

The invention discloses a ferrocenyl chiral diphosphine ligand and a preparation method of an intermediate of the ferrocenyl chiral diphosphine ligand, and belongs to organic synthesis. The method comprises the following steps: dissolving acetylferrocene and a chiral catalyst in an organic solvent, dropwise adding dimethylamine, after the reaction is finished, purifying to obtain a crude product of N, N-dimethyl-1-ferrocenylethylamine, and splitting and dissociating to obtain (S)-(-)-N, N-dimethyl-1-ferrocenylethylamine. The preparation method comprises the following steps: dissolving 2, 4-dichlorophenoxyacetic acid into an organic solvent, dropwise adding sec-butyllithium under a low-temperature condition, continuing to react, dropwise adding an organic solvent solution of iodine under a low-temperature condition, and continuing to react to obtain an iodinated product; then carrying out Ullmann reaction on the iodinated substance under the catalysis of nickel to obtain a coupling product; and finally, dissolving the coupling intermediate and diphenylphosphine in acetic acid, and continuously reacting to obtain a target product. The preparation method provided by the invention has the advantages of cheap and easily available raw materials, less chiral catalyst dosage, less preparation steps, high product yield and good product quality.

This invention relates to the field of lithium manganese oxide cathode materials, specifically to lithium manganese oxide cathode materials and their preparation methods, cathode sheets, and batteries, for addressing the issue of Mn content during cycling. 3+ The problems of Jahn-Teller distortion, Mn dissolution, and low conductivity were addressed. K / Al co-doped lithium manganese oxide powder was obtained by ball milling and sintering lithium carbonate, manganese tetroxide, potassium carbonate, aluminum nitrate, and anhydrous ethanol. This powder was then coated with an acetylferrocene / diphenylamine polymer and finally coated with an AlF3@CeF3 suspension to obtain the lithium manganese oxide cathode material. This lithium manganese oxide cathode material significantly improved electronic conductivity, rate performance, and cycle stability, exhibiting excellent cycle stability and rate performance.

The application relates to a method for synthesizing a bisferrocenyl compound by using a multi-component reaction and application, and the synthesis method is as follows: adding ferrocene formaldehyde, aminoferrocene, a Lewis acid, anhydrous dichloromethane and anhydrous diethyl ether into a reaction bottle, stirring and dissolving for reaction, then adding acetylferrocene, adding trimethylchlorosilane under stirring, continuing the reaction at room temperature, adding an inorganic alkali aqueous solution after the reaction is completed, extracting with an organic solvent, combining the organic phases, concentrating the solvent, and purifying the crude product through silica gel column chromatography to obtain the target compound. The application synthesizes a novel compound 1,3-bisferrocenyl-3-ferrocenylamino propanone containing three ferrocene groups by using acetylferrocene, ferrocene formaldehyde and aminoferrocene as raw materials and through a Mannich three-component reaction under acidic conditions, and the novel compound exhibits superior antioxidant activity, and the antioxidant performance is superior to that of corresponding single ferrocene group compounds and bisferrocene group compounds, and the novel compound has potential application value.