822-39-9Relevant articles and documents
Five-membered ring phosphite compound, and preparation method and application thereof
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Paragraph 0090; 0092-0093, (2020/06/17)
The invention belongs to the technical field of batteries, and especially relates to a five-membered ring phosphite compound. The structural general formula of the five-membered ring phosphite compound is represented by formula 1 shown in the description; and in the formula, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R and R are independently selected from hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an alkynyloxy group, an enyloxy group, a silyl group, a siloxane group, aryl silicon, an arylsilyl group, an arylsiloxy group, a halogenated alkyl group, a phenyl group, a biphenyl group, a naphthyl group, a pyridyl group, a thienyl group, a halogenated phenyl group, a halogenated biphenyl group, a phenolic group, an alkyl-containing phenolic group, an alkenyl-containing phenolic group, an alkynyl-containing phenolic group, a nitrile-containing phenolic group, a monohalogenated phenolic group and a polyhalogenated phenolic group. The five-membered ring phosphite compound provided by the invention has excellent flame retardant property, can effectively prevent electrolytes from being oxidized when being applied to the field of batteries, reduces oxygenolysis of the electrolytes on positive electrodes, and remarkably improves the comprehensive properties such as high temperature, circulation, storage and the like of the batteries.
Phosphine ligand compound and preparation method thereof, catalyst composition and application thereof, and vinyl acetate hydroformylation method
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Paragraph 0091-0094, (2020/07/13)
The invention relates to the field of vinyl acetate hydroformylation, and discloses a phosphine ligand compound and a preparation method thereof, a catalyst composition and application thereof, and avinyl acetate hydroformylation method. The phosphine ligand compound has a structure shown as a formula (1); wherein A is selected from substituted or unsubstituted biphenyl; B1 and B2 are each independently selected from substituted or unsubstituted C1-C20 alkylene groups; substituent groups optionally existing in A, B1 and B2 are respectively and independently selected from at least one of C1-C20 alkyl, halogen, C1-C10 alkoxyl, hydroxyl, carboxyl and aldehyde group; and the provided phosphine ligand compound can effectively improve the conversion rate of vinyl acetate and the selectivity of2-acetoxy propionaldehyde.
Method of Preparing 1,1,6,6-tetrachloro-2,5-dioxa-1,6-diphoshexane
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Page/Page column 9-13, (2019/09/05)
A method for manufacturing 1,1,6,6-tetrachloro-2,5-dioxa-1,6-diphoshexane according to the present invention is the method for manufacturing 1,1,6,6-tetrachloro-2,5-dioxa-1,6-diphoshexane represented by chemical formula 2 by phosphorylation of an ethylene glycol compound represented by chemical formula 1 in the presence of an organic base. The method has effects of having an easy manufacturing process, being able to mass produce, obtaining 1,1,6,6-tetrachloro-2,5-dioxa-1,6-diphoshexane in a high yield, and manufacturing 1,1,6,6-tetrachloro-2,5-dioxa-1,6-diphoshexane with the high yield and a high purity.COPYRIGHT KIPO 2019