Topic
Dichlorophenylphosphine
About: Dichlorophenylphosphine is a research topic. Over the lifetime, 127 publications have been published within this topic receiving 1267 citations.
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TL;DR: The density and viscosity of dichlorophenylphosphine sulfide (C6H5PSCl2) over a temperature range of (303.16 to 423.40) K were measured as mentioned in this paper.
Abstract: The density and viscosity of dichlorophenylphosphine sulfide (C6H5PSCl2) over a temperature range of (303.16 to 423.40) K were measured. The vapor pressure of dichlorophenylphosphine sulfide in the...
TL;DR: Dichlorophenylphosphine and dichlorodiethylamidophosphite react with methyl (trimethylsilylthio)acetate to substitute the methoxycarbonylmethylthio group for one Cl atom as mentioned in this paper.
Abstract: Dichlorophenylphosphine and dichlorodiethylamidophosphite react with methyl (trimethylsilylthio)acetate to substitute the methoxycarbonylmethylthio group for one Cl atom.
Patent•
05 Jun 2013
TL;DR: In this paper, a phenyldipropylphosphinate compound and a preparation method for the preparation of a halogen-free organic phosphine flame retardant was described.
Abstract: The invention relates to a phenyldipropylphosphinate compound and a preparation method thereof. The structure of the compound is shown in the specification. The preparation method comprises the following steps of: controlling the molar ratio of dichlorophenylphosphine to sodium n-propoxide; dropwise adding the dichlorophenylphosphine into a solution of an organic solvent of sodium n-propoxide with certain concentration at 10 DEG C; after dropwise adding, controlling the temperature at 15-20 DEG C, and stirring for reaction for 1-2 hours; heating to 40-50 DEG C, and preserving heat for reaction for 2-3 hours; filtering to remove NaCl; distilling out the organic solvent; and performing reduced-pressure distillation and collecting the fraction at 118-120 DEG C under a pressure of 1.33KPa to obtain phenyldipropylphosphinate. The product provided by the invention is a halogen-free organic phosphine flame retardant, has high flame retardance, is suitable to be used as a flame retardant of materials such as polyurethane, epoxy resin, unsaturated resin and the like, and also serves as an intermediate for synthesis of organic phosphine. According to the phenyldipropylphosphinate compound and preparation method thereof provided by the invention, the technology is simple, the equipment investment is small, and the industrial production is facilitated.
Patent•
21 Nov 2012
TL;DR: In this paper, a photoinitiator dual (2, 4, 6-trimethylbenzene formyl group) phenyl phosphine oxide was proposed, which has the advantages of being safe in operation process, free of needs of dangerous metallic sodium or potassium, free from needs of using inflammable midbody phenyl phosphorus, simple in reaction process, safe, easy to control, high in obtained product yield, good in quality and prone to achieve mass production.
Abstract: The invention discloses a synthetic method of photoinitiator dual (2, 4, 6-trimethylbenzene formyl group) phenyl phosphine oxide. The synthetic method comprises processes of using dichlorophenylphosphine and 2, 4, 6-trimethylbenzene acyl chloride to serve as raw materials, conducting a classification reaction under protection of nitrogen to generate dual(2, 4, 6-trimethylbenzene formyl group) phenyl phosphine, oxidizing hydrogen peroxide to obtain a target object-dual (2, 4, 6-trimethylbenzene formyl group) phenyl phosphine oxide. Compared with the existing industrial production, the process has the advantages of being safe in operation process, free of needs of dangerous metallic sodium or potassium, free of needs of using inflammable midbody phenyl phosphine, simple in reaction process, safe, easy to control, high in obtained product yield, good in quality and prone to achieve mass production and the like.
Patent•
26 Mar 2013
TL;DR: In this article, a synthesis method for dichlorophenylphosphine oxide was proposed, which is similar to the one described in this paper, but the synthesis method consists of taking benzene and phosphorus trichloride as raw materials and simultaneously adding sodium chloride and alchlor as the catalyst.
Abstract: The invention provides a synthesis method for dichlorophenylphosphine oxide, relating to a synthesis method for a catalyst for chemical industry. The synthesis method comprises the following steps of taking benzene and phosphorus trichloride as raw materials and simultaneously adding sodium chloride and alchlor as the catalyst, reacting so as to produce mixed liquor of the dichlorophenylphosphine oxide, benzene and the phosphorus trichloride and solid residue, processing the solid residue with extracting agent and mixing with the mixed liquor, thus obtaining the pure dichlorophenylphosphine oxide through distillation under normal pressure and reduced pressure. The catalyst AlCl3*XNaCl complex can be recycled. Compared with traditional method, the synthesis method has the characteristics that the operation steps are simple, the production time is short, decomplexing agent is added no more in the steps, the synthesis method is easy to operate and control, the production cost is low, and the production steps are environment-friendly, and the like.