40results about How to "Unique chemical structure" patented technology

The invention discloses a self-emulsification rosinyl surfactant emulsion and a preparation method thereof. The preparation method comprises: esterfying polyethylene glycol of low molecular weight with rosin or modified rosin to prepare rosinyl polyethylene glycol diacrylate; in the presence of emulsification-assistant agent, emulsifying the rosinyl polyethylene glycol diacrylate to prepare emulsion of which the solid content is 30-60% with a high shear apparatus. The prepared self-emulsification rosinyl surfactant emulsion has smaller parameter diameter reaching 112nm, and good stability. The emulsion has strong surface activity, raw materials are cheap and easy to obtain, and environmentally-friendly water serves as dissolvent, thus the emulsion is biodegradable. The emulsion is an environmentally-friendly surfactant emulsion and can serve as emulsifier, dispersant and accessory ingredient in oil fields.

The invention discloses an N-methoxyl formamide-orientated method for synthesizing a ferrocene and pyridone derivative. According to the method, under the conditions that palladium acetate is taken as a catalyst, copper acetate is taken as a catalyst promoter and quaternary ammonium salt and alkali are taken as additives, an N-methoxyl ferrocene and [c] pyridine-2(1H)-ketone derivative is obtained by carrying out a cyclization reaction on N-methoxyl ferrocene formamide and alkyne. The method adopts an N-methoxyl formamide-orientated carbon-hydrogen bond and nitrogen-hydrogen bond double-activation reaction to synthesize the N-methoxyl ferrocene and [c] pyridine-2(1H)-ketone derivative in one step. The organometallic condensed heterocyclic compounds are unique in structure, thus being hard to prepare by a conventional method; the method provided by the invention has the characteristics of being easy in obtaining of raw materials and mild in reaction conditions, not needing the protection of inert gas, being high in synthetic yield, and the like; therefore, a new way is provided for the synthesis of novel ferrocene and heterocyclic compounds, and the method has an important significance for expanding the application of the compounds in the fields such as medicinal chemistry, material chemistry, catalysts and the like.

The invention discloses a rosin ester alcohol ether type quaternary ammonium salt surfactant. Its general structural formula is as follows: in the formula, the molecular weight n of polyethylene glycol PEG is any one of 200, 400, 600, 1000, 2000 and 4000 , where R is any one of methyl CH3, ethyl CH2CH3, ethanol CH2CH2OH. The invention also discloses the preparation method of the surfactant: adopting a one-pot method to prepare, first, rosin and polyethylene glycol are used for esterification to form rosin polyethylene glycol monoester, and the hydroxyl group in polyethylene glycol is passed through epichlorohydrin ether. quaternization, epoxy group and tertiary amine hydrochloride quaternization, obtain rosin ester alcohol ether quaternary ammonium salt type surfactant. The critical micelle concentration of the prepared surfactant is 0.1-0.3mmol / L; the range of surface tension is 37-39.5mN / m. The molecule contains non-ionic and cationic functional groups, and is a new type of functional green surfactant.

The invention discloses a rosin / fatty acid-capped nonionic surfactant and a preparation method thereof, wherein the rosin is a monocarboxylic acid containing a tricyclic diterpene structure such as ordinary rosin, disproportionated rosin or hydrogenated rosin, and the fatty acid is stearic acid or palmitic acid A monocarboxylic acid with a linear structure such as acid or oleic acid. The invention also discloses the preparation method of the surfactant: adopting a one-pot method for preparation, first esterifying fatty acid with polyethylene glycol to form fatty acid polyethylene glycol monoester, and then reacting fatty acid polyethylene glycol monoester with rosin to form rosin Polyethylene glycol fatty acid esters. The critical micelle concentration of the prepared surfactant is 0.01-0.1mmol / L; the range of surface tension is 40.7-54.8mN / m. The product not only has the high activity of linear surfactants, but also has the high spreading performance of rosin surfactants. It is a new type of functional green surfactant.

The invention discloses a rosin-based chelating gemini surfactant and a preparation method thereof. The rosin-based chelating gemini surfactant has the structure general formula as follows, and in the formula, M is metal ion K or Na, and PEG is polyethylene glycol with the molecular weight which is any in 400, 600, 1000, 2000 and 4000. The invention also discloses the compound and the preparationmethod thereof; and the preparation method comprises the steps of: using rosin and polyethylene glycol for esterification, carrying out D-A addition on conjugated double bonds in the rosin, and obtaining the rosin-based chelating surfactant by alkali neutralization. The prepared surfactant has metal ion chelating performance and strong surface activity, and the raw materials are low in price, easily obtained and can be biodegradable. The rosin-based chelating gemini surfactant is a novel functional green surfactant.

The invention belongs to the technical field of pesticides, and particularly relates to a spiro indolinone compound, and a preparation method and application thereof. According to the preparation method, a dispiro[benzofuranone-2,3'- pyrrolidone-2',3''-indolinone] compound is obtained by dissolving an N-substituted indigo derivative, alpha-amino acid and an aurone derivative in an organic solventaccording to a certain proportion in a one-pot synthesizing mode, removing the organic solvent after a TLC detection reaction is ended and recrystallizing; and the preparation method is simple. The dispiro[benzofuranone-2,3'- pyrrolidone-2',3''-indolinone] compound disclosed by the invention shows good activity to plant virus, and particularly has a very good prevention and treatment effect on preventing and treating tobacco mosaic virus.