30 results about "Phosphole" patented technology

The invention relates to a cage-shaped flame-retardant charring agent trimethyl silicic acid PEPA ester compound and a preparation method of the cage-shaped flame-retardant charring agent trimethyl silicic acid PEPA ester compound. The structure of the compound is shown through the following formula in the specification. The preparation method includes the steps that at the temperature of 50 DEG C, trimethylchlorosilane is dripped to a solution of 1-epoxide phosphole -4-hydroxymethyl-2, 6, 7-trioxa-bicyclo [2.2.2] octane (PEPA) and an organic solvent, the temperature rises to 80 DEG C to 140 DEG C, a reaction is conducted for 5 h to 11 h through stirring, a quantitative acid-binding agent is added, stirring is conducted for 1 h, when the pH of the solution is detected as 5 to 6, the reaction is ended, after reduced pressure distillation, purification treatment is conducted, and then cage-shaped flame-retardant charring agent trimethyl silicic acid PEPA ester is acquired. The compound is an excellent halogen-free phosphorus and silicon synergistic flame-retardant charring agent, can be applied to polyolefin, polyester, polyvinyl chloride, polyurethane, epoxy resin, unsaturated polyester resin and the like, and is simple in process and small in equipment investment, and industrial production can be easily achieved.

The invention discloses a method for preparing nano phosphorus-nitrogen inrumescent flame retardant melamine phosphate (MP) by means of a supercritical method. The method comprises the steps that phospholipid melamine, phosphoric acid, surface active agents and the like are weighed, and are dissolved in a little distilled water; the dissolved solution is added to a supercritical reaction kettle, temperature and pressure are controlled, and the pressure is kept for certain time; the nano phosphorus-nitrogen inrumescent flame retardant melamine phosphate (MP) is obtained by releasing the pressure. The characteristics that supercritical carbon dioxide fluid is high in solvent resistance and environmentally friendly and can be easily separated from products after preparation is finished are utilized, and the nano phosphorus-nitrogen inrumescent flame retardant is prepared. In the preparation process of the method, toxic organic solvent is not used, and pollution to environment is avoided. The prepared phosphorus-nitrogen inrumescent flame retardant is small in particle size and easy to disperse, the problem that nano particles are poor in dispersity in polymer matrixes is solved, and therefore high fire resistance is achieved. The process is simple, and cost is low.

The invention provides a novel method using Pd nano particles to catalytically synthesize benzophosphole and belongs to the field of organic synthesis. The method includes: the new Pd nano particles are synthesized first, a compound I is used as the reaction substrate, and cyclization is performed to obtain the target compound II as shown in the specification, wherein R1 and R2 represent phenyl, substituted phenyl or C1-5 alkyl. The method has the advantages that the method is good in selectivity, product yield can reach above 89%, industrial production is facilitated, and application of the benzophosphole in fields such as organic light-emitting functional materials (solar cells and organic light-emitting diodes), photochromic molecular switches and biological fluorescent probes.

The invention discloses a benzo polyaza and phosphole oxygen ligand and a complex containing same, a preparation method and application. The invention provides a benzo polyaza and phosphole oxygen ligand as shown in formula I and a complex containing same. A complex of the benzo polyaza and phosphole oxygen ligand and a transition metal halide enables direct coupling of carbon-carbon bonds betweenbig steric hindrance alkyl and aryl; the reaction conditions are gentle; the catalyzing efficiency is high; the coupling reaction process of the carbon-carbon bonds between big steric hindrance alkyland aryl can be extremely simplified; the practicability is high; the reaction cost can be obviously decreased, and the reaction period is reduced; the complex is free from other side products without being required in the catalyzing process. The formula refers to the description.

A phosphole compound represented by the formula(wherein Ar1 and Ar2 are the same or different, and represent an optionally substituted aromatic hydrocarbon ring or an optionally substituted heteroaromatic ring; Ar3 represents a divalent π-conjugated unit; R1 represents an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heteroaryl group; R2 and R3 are the same or different, and represent a hydrogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heteroaryl group; and Z represents a reactive group) can provide a fluorescent dye capable of maintaining a high fluorescence quantum yield irrespective of solvent polarity, and providing an improved fluorescence quantum yield and light resistance even in environments containing large amounts of water.

Disclosed are methods and complexes for increasing magnesium uptake in mammals. Increasing magnesium uptake in mammals is accomplished by concurrently administering one or more magnesium salts with one or more quaternary amines and / or phosphatides and one or more di- or tri-carboxylic acids.

The invention discloses an organic electroluminescence compound with a diphosphopentadiene condensed ring and a synthesis method of the compound, and belongs to organophosphorus electroluminescence materials. The compound has a structure general formula as shown in a formula (I), wherein E is O or S, and a pi-conjugated group is phenyl or thiophene and the like. The compound can serve as a luminescent layer of an organic electroluminescence device to be applied to electroluminescence devices, luminescence properties of the device can be effectively changed by simply and chemically modifying phosphorus atoms and changing the pi-conjugated group, adjustment and control from blue light to yellow light are achieved, the compound is good in heat stability, natures of cis-trans-isomer devices are almost indistinguishable, the cis-trans-isomer devices has excellent charge injection and transmitting capacity, and the efficiency and the service lives of the corresponding organic electroluminescence devices can be remarkably improved.

A phosphatidic biological degradable polyester and its production are disclosed. The production is carried out by phosphatidic group of phosphoryl choline with bionic function condensing reacting, covalent interlinking onto biological degradable polymer chain, and obtaining degradable polymer with phosphatide modification. It achieves good biological degradability, biological compatibility, and self-combing ability for medicine releasing carrier materials.

The syntheses and in vitro antitumor properties of carbamate-containing, dicarbamate-containing, and ureido-containing phospholipid compounds that have an ether linkage at the C-1 position of a glycerol backbone, a carbamate, dicarbamate, or ureido moiety at the C-2 position of the glycerol backbone, and a phosphocholine, phosphonocholine, or glycoside moiety at the C-3 position of the glycerol backbone are described. The synthesis and antiproliferative activity of ether lipids with a naphthol moiety at the C-1 position are also described. These compounds were shown to be potent inhibitors of cancer cell growth. These compounds are useful for killing cancer cells and treating cancer.