60 results about "Acetylferrocene" patented technology

The present invention discloses a method for preparing acetylferrocene. Said method includes the following steps: using ferrocene as raw material, making said ferrocene and solution formed from acetylation reagent and binary catalyst produce reaction in haloolefin reaction solvent so as to obtain the invented target product whose purity can be up to above 98% and yield is 89-92%.

The invention provides ferrocenyl containing oxadiazolyl Mannich bases and a preparation method thereof; the preparation method comprises: adding A mol of substituent-containing amino-oxadiazole, B mol of an aldehyde compound, an acidic catalyst and the solvent absolute ethyl alcohol into a dry three-neck flask with a reflux condensing tube, adding absolute ethyl alcohol solution of acetylferrocene with C mol of a solute, heating and refluxing until full reaction for 10-14 h, wherein the ratio of A, B and C is (0.7-1):(5-30):1, depressurizing and evaporating to remove the solvent after reaction, and separating via silica gel column chromatography to obtain the ferrocenyl containing oxadiazolyl Mannich bases. The preparation method is simple to perform, the reaction conditions are mild, equipment requirements are low, the purity of the bases is high, and the catalyst used herein is low in price and easy to obtain. The serial novel-structure ferrocenyl containing oxadiazolyl Mannich bases are prepared herein, and beneficial assistance is provided for the development and application of these compounds.

The invention provides a 3-[4-(2-amino-5-substituted-[1,3,4]thiadiazolyl)-phenyl]-1-ferrocenyl-acrylketone and a preparation method thereof. The structural formula is disclosed in the specification. The preparation method comprises the following steps: adding acetylferrocene, 4-(2-amino-5-substituted-[1,3,4]thiadiazolyl)-benzaldehyde, catalyst and anhydrous ethanol into a flask with a reflux condensation tube, putting the flask into microwave oven, carrying out microwave radiation until the reaction is completed, extracting the reaction product with acetone, and removing the acetone to obtain the target product. The method for synthesizing the target product by the microwave process has the advantages of high reaction sensitivity, high heating rate, short reaction time, high heat utilization efficiency, energy saving, no pollution and the like; and the obtained product has the advantages of high purity and high yield (up to 91% above).

The invention relates to the technical field of mulching film production, and concretely relates to a completely-biodegradable agricultural mulching film. The completely-biodegradable agricultural mulching film comprises, by weight, 50-70 parts of a poly(3-hydroxybutyrate) and polyhydroxyvalerate copolymer, 10-15 parts of polybutylene succinate, 0.5-2 parts of acetylferrocene, 1-3 parts of a polymeric hindered amine light stabilizer, 0.5-3 parts of 2-(2'-hydroxy-5'-methylphenyl)benzotriazol, 5-8 parts of bentonite and 4-8 parts of carboxymethylcellulose sodium. The agricultural mulching film can be completely degraded, and has the advantages of good mechanical stress resistance, good wet resistance, environmental protection and no pollution.

The invention discloses 4-(substituted phenyl)-6-ferrocenyl-3,4-dihydropyrimidine-2(1H)-one and a preparation method thereof. The method comprises the following steps: adding A (mmol acetylferrocene),B (mmol nitrogen source), C (mmol aromatic aldehyde), D (mmol boracic acid) and E (mL acetic acid) into a three-necked flask, wherein a ratio of A to B to C to D is 1 to (1.1 to 1.2) to (1.1 to 1.2)to 0.74, and a ratio of A to E is 1 to (9 to 12); performing reaction at 100 DEG C until the raw materials are completely subjected to reaction; pouring a reaction mixed solution into water and separating solids out; performing suction filtration and water washing on the solids; naturally airing the solids; performing recrystallization through absolute ethyl alcohol to obtain a 4-(substituted phenyl)-6-ferrocenyl-3,4-dihydropyrimidine-2(1H)-one pure product. The invention discloses a series of novel unreported compounds and the preparation method thereof.

The invention relates to a preparation method of ferrocenecarboxylic acid, comprising the following steps of: firstly, adding polyethylene glycol, iodine-potassium iodide and acetylferrocene into an aqueous alkali with uniformly stirring, wherein the acetylferrocene undergoes an iodoform reaction to form ferrocene carboxylic acid salt dissolved in a non-organic phase; secondly, extracting the solution obtained from the reaction of the first step by the use of an organic solvent, adjusting the pH value of a water phase to 2-3 by the use of strong acid to change sodium ferrocene carboxylic acid into ferrocenecarboxylic acid precipitated from the water phase. According to the invention, non-organic aqueous alkali is used as a solvent to prepare ferrocenecarboxylic acid. The preparation method provided by the invention is easy to control. During the process, the mild reaction is carried out in a solution with the reaction temperature being from zero to 5 DEG C for a short time; ferrocenecarboxylic acid can be produced only within 2 hours. The used raw materials are commonly sold in the market and are cheap. The yield of the product in the invention can reach more than 85% by optimum technology.

The invention discloses an antiknock clean solvent used for motor gasoline. The antiknock clean solvent includes a clean dispersant, a combustion improver, an antiknock agent, a polar solvent and an inert solvent, wherein the clean dispersant comprises 10-20wt% of a petroleum sulfonate agent, 5-8wt% of succinate and 8-12wt% of salicylate; the combustion improver is 5-8wt% of benzyl alcohol ; the antiknock agent is 5-8wt% of methyl tert-butyl ether; the polar solvent is 25-35wt% of trifluoroacetic acid or acetylferrocene; and the inert solvent is obtained through mixing fatty oil, liquid paraffin, ethyl acetate and isopropyl myristate. The antiknock clean solvent allows gasoline components and even gasoline components not according with national relevant regulation to be processed in order to produce qualified 93# or above gasoline, so some resources which cannot be used are changed into valuables and become national effective energy.

A mol of choline chloride and B mol of methanesulfonic acid are added into a dry three-necked flask, stirring is executed at room temperature to obtain a eutectic solvent, and then C mol of acetylferrocene and D mol of 2-amino-5-substituted-1,3,4-thiadiazole are added, reaction is executed in a water bath of 40 DEG C, and TLC monitoring is executed until the reaction is completed; after the reaction is completed, the reaction liquid is poured into water, extraction is executed with dichloromethane, the solvent is evaporated to obtain a crude product, and a water phase is recovered to obtain the eutectic solvent again; the crude product is recrystallized by absolute ethyl alcohol to obtain the pure ferrocenyl-containing thiadiazolyl Schiff base. The method is simple in operation, high in yield, high in product purity, short in reaction time and simple in post-treatment, the eutectic solvent is recyclable, environmentally friendly and low in cost, and the method has the important significance in synthesis and development of the compounds.

The invention provides a preparation method for a Mannich base containing ferrocenyl thiadiazole or oxadiazole. The method comprises the following steps: sequentially adding A mol of 2-amino-5-substituted-1,3,4-thia(oxa)diazole, B mol of an aldehyde and absolute ethanol into a dry three-necked flask, and performing uniform stirring; and adding C mol of a benzothiazole ionic liquid, slowly adding Dmol of an acetylferrocene anhydrous ethanol solution dropwise under stirring, after addition is completed, performing a reflux reaction under heating until the reaction is completed, performing reduced-pressure distillation to remove a solvent, adding ethyl acetate into residues, performing suction filtration, performing evaporation on the filtrate to dryness to obtain a crude product, and performing recrystallization on the crude product by using anhydrous ethanol to obtain the Mannich base containing the ferrocenyl thiadiazole or oxadiazole, wherein the filter cake is a benzothiazole ionicliquid and can be recycled and reused, and the ratio of the A to the B to the C to the D is 1:(5-10):(0.5-1.5):1. The method provided by the invention is environmentally friendly, and simple and convenient to operate, and has simple after-treatment, a high yield, and high efficiency, the catalyst can be recycled for multiple times, and the reaction costs are low.

The invention discloses a water purifying material prepared from waste straw.The water purifying material is prepared from, by weight, 50-80 parts of waste straw, 5-10 parts of cellulose, 6-12 parts of selenium dioxide, 10-20 parts of superfine silicic acid, 3-9 parts of zinc ferrite, 10-15 parts of dimethyl sulfide, 13-18 parts of ammonium ferric citrate, 1-6 parts of acetylferrocene, 15-25 parts of glycerophosphate and 18-25 parts of linalool.By using the purifying material, metal impurities in water can be effectively degraded and removed, and an effective way is provided for recycling waste straw.

The invention provides 3-(4-carbazole-9-yl-phenyl)-1-ferrocenyl-acetone and a preparing method thereof. Acetyl ferrocene, 4-carbazole-9-yl-benzaldehyde, NaOH and K2CO3 are added into a dry reaction vessel, ground uniformly and subjected to a heat preserving reaction, and a product is treated to obtain the 3-(4-carbazole-9-yl-phenyl)-1-ferrocenyl-acetone. According to the method, acetyl ferrocene and 4-carbazole-9-yl-benzaldehyde are used as raw materials, NaOH and K2CO3 are used as catalysts, and a solid-phase solvent-free method is adopted for preparing the 3-(4-carbazole-9-yl-phenyl)-1-ferrocenyl-acetone; according to the method, reaction time is short, solvent is not needed, the operation process is simple, the reaction condition is mild, the requirement for equipment is low, post-treatment is simple, reaction is complete, the yield reaches over 97%, and the prepared 3-(4-carbazole-9-yl-phenyl)-1-ferrocenyl-acetone has a good antibacterial effect.

The invention discloses an AFc/CB/PVB modified electrode, which comprises a glassy carbon electrode and a modification layer fixed on the surface of the glassy carbon electrode; and the modification layer comprises a polyvinyl butyral membrane containing powdered carbon and acetylferrocene absorbed on the surface of the polyvinyl butyral membrane. The invention also discloses a method of the AFc/CB/PVB modified electrode, which comprises the following steps: dispersing acetylferrocene, powdered carbon and polyvinyl butyral resin in absolute ethyl alcohol to prepare a mixed liquor containing AFc/CB/PVB modified substrate, then polishing the glassy carbon electrode, adding the mixed liquor containing AFc/CB/PVB modified substrate drop by drop on the surface of the pretreated glassy carbon electrode, and then naturally drying to obtain the AFc/CB/PVB modified electrode. The invention also discloses a method for detecting sulfite by the AFc/CB/PVB modified electrode, and comprises an application for determining free state sulfite and amount. The method has the advantages of strong anti-interference capability, good stability and high sensitivity.

The invention provides a method for preparing 3-methyl-1,3-ferrocenyl propylene-1-one. The method comprises the following steps: adding A mmol acetyl ferrocene, B mmol alkali and C mmol K2CO3 into a reaction vessel according to the ratio of A, B and C of 2: (1.5-3.5): (0-3.5), grinding for 10-30 minutes, and then, standing, so as to obtain a mixture; adding water into the mixture to uniformly disperse the mixture, then, carrying out suction filtration, and washing and drying a filter cake, thereby obtaining 3-methyl-1,3-ferrocenyl propylene-1-one. According to the method, a target product is prepared by adopting a grinding method, acetyl ferrocene serves as a raw material, K2CO3 and the alkali serve as a catalyst or the alkali serves as the catalyst alone, the reaction is carried out without solvents, the operation is simple and convenient, the reaction is easy to control, the reaction time is short, the requirements on equipment are low, the after-treatment is simple, and the yield is high.

The invention discloses a fuel oil additive. The fuel oil additive is prepared from raw materials in a weight ratio as follows: 0.008%-1% of ferrocene, 0.01%-1.8% of diacetyl ferrocene, 3%-8% of tertiary amyl methyl ether, 2%-10% of methyl tertiary butyl ether, 0.001%-0.005% of methylcyclopentadienyl manganese tricarbonyl, 3%-15% of tert butyl alcohol, 3%-7% of alkyl benzene and the balance of gasoline. The maximum utility of fuel oil can be played, the utilization rate of the fuel oil is increased, vehicle performance can be improved to a certain degree, more fuel oil is saved, tail gas is purified, and pollution is reduced.

The invention discloses a synthesis method of bis(carboxylcyclopentadiene)iron, which comprises the following steps: 1,1'-diacetyl ferrocene, cuprous chloride, N-methylimidazole, toluene, butane, brominated 1-amyl-methylimidazole and concentrated sulfuric acid are used as main raw materials; according to the synthesis process disclosed by the invention, self-made [C5mim]HSO4 ionic liquid is used as a reaction solvent, so that the bis(carboxylcyclopentadiene)iron is prepared through catalysis of a uniformly dispersed oxidation system formed by CuCl and an ionic liquid, and therefore, catalyticoxidation of diacetyl ferrocene in a short time can be realized, and high catalytic activity and selectivity are shown.

The present invention discloses a 2-n-propyl-6-ferrocenyl-imidazo[2,1-b]-1,3,4-thiadiazole preparation method, which comprises: carrying out stirring mixing on 2-amino-5-n-propyl-1,3,4-thiadiazole, alpha-bromo-acetylferrocene and ethanol; placing the mixed solution in a microwave oven, and carrying out microwave irradiation; after the alpha-bromo-acetylferrocene completely reacts, carrying out a microwave reaction; adding water to the reaction solution, and adjusting the pH value of the reaction solution to 7-8 with a saturated sodium carbonate solution; carrying out suction filtration, washing the filter cake with water, and drying to obtain a crude product; and re-crystallizing with DMF to obtain the target product. According to the present invention, the microwave-assisted synthesis reaction is used so as to substantially shorten the reaction time and improve the reaction efficiency.

The present invention discloses a 2-(4-trifluoromethylphenyl)-6-ferrocenyl-imidazo[2,1-b]-1,3,4-thiadiazole preparation method, which comprises: carrying out stirring mixing on 2-amino-5-(4-trifluoromethylphenyl)-1,3,4-thiadiazole, alpha-bromo-acetylferrocene and ethanol; placing the mixed solution in a microwave oven, and carrying out microwave irradiation; after the alpha-bromo-acetylferrocene completely reacts, carrying out a microwave reaction; adding water to the reaction solution, and adjusting the pH value of the reaction solution to 7-8 with a saturated sodium carbonate solution; carrying out suction filtration, washing the filter cake with water, and drying to obtain a crude product; and re-crystallizing with DMF to obtain the target product. According to the present invention, the microwave-assisted synthesis reaction is used so as to substantially shorten the reaction time and improve the reaction efficiency.