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35 results about "O-Methoxyphenol" patented technology

Liquid fertilizer synergistic additive and its manufacturing and using method

InactiveCN101125779AGood effectEnhance the effect and improve the utilization rate of fertilizerFertilizer mixturesGuaiacolPhenol
The invention relates to a liquid chemical fertilizer synergism additive. 0-20 percent of 2,4- dinitrophenol, 0-20 percent of a-naphthylacetic acid, 0-20 percent of indoleacetic acid, 0-20 percent of indolebutyric acid, 0-30 percent of o-nitrophenol, 0-30 percent of p-nitrophenol, 0-20 percent of 5- nitro guaiacol, 0-20 percent of guaiacol, 0-10 percent of brilliant blue, 0-10 percent of polyoxyethylene ethers surfactant and 0-70 percent of methanol according to the weight content are mixed and stirred to produce the liquid chemical fertilizer synergism additive. The fertilizer synergism additive overcomes the shortages of the existing chemical fertilizers, improves chemical fertilizer utilization ratio, reduces chemical fertilizer application and pollution to the environment, has obvious synergism effect, reaches the purpose of increasing production and efficiency, environmental protective and reducing cost, therefore, the popularization of the liquid chemical fertilizer synergism additive has significant social meaning in China as a big agricultural Country.
Owner:刘长福

Method for totally synthesizing berberrubine from catechol

The invention relates to a method for synthesizing a drug, and concretely relates to a method for synthesizing berberrubine from catechol. The method comprises the following steps: carrying out a selective methylation reaction on the raw material catechol and 2-chloromethane to obtain o-methoxyphenol, and carrying out a selective formylation reaction to obtain 2-hydroxy-3-methoxybenzaldehyde; carrying out a methylenation reaction on catechol and 2-chloromethane to obtain piperidine, and carrying out a catalytic addition reaction on the piperidine and 2-chloroethylamine to obtain homopiperonylamine; carrying out a one-pot condensation hydrogenation reaction on the homopiperonylamine and 2-hydroxy-3-methoxybenzaldehyde under the action of a nickel-based catalyst, adding hydrochloric acid tothe obtained reaction product, cooling obtained crystals, and performing filtration to obtain a hydrochloride condensate; and refining the hydrochloride condensate, carrying out a cyclization reactionon the refined hydrochloride condensate and glyoxal under the action of a copper-based catalyst, refining the obtained reaction product, adding hydrochloric acid, performing cooling for crystallization, and filtering and washing obtained crystals to obtain the product berberrubine. The method realizes industrial total synthesis of the berberrubine, and opens up a chemical synthesis method for berberrubine drugs.
Owner:SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY

Peptide energy nitrogenous fertilizer and method for manufacturing same

The invention discloses a peptidergic nitrogen fertilizer and a manufacturing method thereof; the formula of raw materials are as follows: an anionic surface active agent, alkyl sulfonate, alkyl carboxylic salt; 2, 4-dinitrophenol; a-naphthylacetic acid; indoleacetic acid; indolebutyric acid; o-nitrophenol; p-nitrophenol; 5-nitroguaiacol; guaiacol; goomassie and chemical nitrogen. The raw materials are fully mixed, stirred and processed to be bright yellow granular according to a method for processing compound fertilizers. As the peptidergic nitrogen fertilizer overcomes deficiencies of the existing fertilizers and improves the utilization ratio of the fertilizer, the aim of increasing production and efficiency, environmental and reducing the cost is achieved. Our country is a big agricultural country, and the application of the peptidergic nitrogen fertilizer has certain economic benefit and profound social significance.
Owner:郑新民

Preparation method of urapidil intermediate 1-(2-methoxyphenyl) piperazine and salt thereof

The invention belongs to the field of organic synthesis, and particularly relates to a preparation method of urapidil intermediate 1-(2-methoxyphenyl) piperazine and salt thereof. According to the invention, o-methoxyphenol is used as a starting material to prepare the urapidil intermediate 1-(2-methoxyphenyl) piperazine by using a brand-new synthesis route, and methylsulfonyl chloride is adopted to activate hydroxyl on o-methoxyphenol, so that the condensation reaction condition of o-methoxyphenol and imino on piperazine is mild; and the intermediate product does not need to be separated in the intermediate process of the sulfonylation reaction and the condensation reaction, and the operation is simple and convenient. The condensation reaction adopts a mode of adding o-methoxyphenyl methanesulfonate into piperazine, so that two imino groups on piperazine are prevented from being subjected to condensation reaction at the same time, the selectivity of a target product is ensured, excessive impurities are prevented from being introduced into a system, and the purity of the product is improved. In terms of o-methoxyphenol, the total yield of the urapidil intermediate 1-(2-methoxyphenyl) piperazine prepared by the preparation method disclosed by the invention can reach 88% or above. Meanwhile, the preparation method is obvious in cost advantage and suitable for industrial production.
Owner:河北广祥制药有限公司
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