52 results about "Benzoquinone Compound" patented technology

The invention provides a preparation method of a p-benzoquinone compound. The preparation method is characterized in that the p-benzoquinone compound is prepared from a phenol compound with high selectivity under a mild condition by taking oxygen or oxygen-containing gas in a liquid solvent as an oxidizing agent in the presence of a transitional metal compound serving as a main catalyst and N-substituted hydrocarbon oxy-compound serving as an assistant catalyst.

An electrophotographic photoconductor including an electroconductive support and a photoconductive layer provided thereon, wherein the photoconductive layer includes a charge generating material, an electron transporting material and a hole transporting material, the electron transporting material being a diphenoquinone compound represented by formula (1) described herein, the hole transporting material being a compound represented by formula (2) described herein.

The invention relates to a simple, fast, highly-selective and highly-sensitive colorimetric detection method for an explosive TNT. According to the method, an anion-pi compound formed by interaction between anions in anion Lewis base and TNT molecules is used; the anion-pi compound may lead to increase of electronegativity of a TNT benzene ring, so people can selectively detect existence of TNT through observation of color changes of an inspected substance with their eyes or a UV-visible spectrophotometer. The method provided by the invention can eliminate interference of other nitrobenzene compounds and benzoquinone compounds and has good selectivity and sensitivity to TNT existing in different states. According to the invention, the color changes can be determined by using the UV-visible spectrophotometer, or even naked eyes, without a complex apparatus and a professional technician, so operation of the method is simple and fast.

The invention provides a separation / purification method of a p-benzoquinone compound. The method is characterized in that an accelerator for promoting aggregation / self assembly of the p-benzoquinone compound is added to a mixed liquid containing p-benzoquinone compound, so as to realize precipitation of the p-benzoquinone compound at or below room temperature and separation / purification of the p-benzoquinone compound.

The invention relates to a high-efficiency preparation method of p-benzoquinone compounds. According to the high-efficiency preparation method, a p-dihydroxybenzene compound is taken as a raw material, and the p-benzoquinone compounds are prepared in the presence of an alkali/alkali-earth metal catalyst. Advantages are that: 1) the high-efficiency preparation method is simple, and amplification of operation processes and industrialized production can be realized easily; 2) a plurality of the p-benzoquinone compounds can be synthesized, and the high-efficiency preparation method is an universal method used for preparing the p-benzoquinone compounds.

The invention relates to a benzoquinone derivative from aspergillus aculeatus and application of the benzoquinone derivative. The structural formula of the compound is shown in the specification. Experiments prove that the benzoquinone compound has good antitumor activity. The benzoquinone derivative can be used for preparing cell proliferation inhibition drugs or antitumor drugs for antitumor study.

The invention discloses fluorine-containing polyether with a low dielectric property and a preparation method thereof. The fluorine-containing polyether with the low dielectric property is prepared bytaking anthracene, p-benzoquinone compounds and octafluorocyclopentene as raw materials. The prepared fluorine-containing polyether with the low dielectric property has the characteristics of low dielectric constant, low dielectric loss, good mechanical property and excellent thermal property, can be used for preparing a low-dielectric polymer-based material, and is widely applied to the fields of electronic packaging, information communication, aerospace and other high-tech industries. The preparation method of the fluorine-containing polyether with the low dielectric property is simple, high in yield and suitable for industrial production.

The invention relates to a colored flame retardant charring agent tetraPEPA oxy-p-benzoquinone compound and a preparation method thereof. The structure of the compound is shown as the following formula in the specification. The preparation method includes: in a reactor equipped with a stirrer, a thermometer and a high-efficiency reflux condensation tube, adding a proper amount of an organic solvent and tetrachloro-p-benzoquinone, then adding a PEPA sodium salt that is 4-5 times the mole of tetrachloro-p-benzoquinone, performing heating to 100-160DEG C, carrying out heat preservation reaction for 6-9h, performing pumping filtration, removing sodium chloride, cooling and crystallizing the filtrate, and conducting filtering and drying, thus obtaining the reddish brown colored flame retardantcharring agent tetraPEPA oxy-p-benzoquinone. The compound provided by the invention has excellent flame retardant and charring properties, also has coloring effect, and is suitable for use as a flameretardant charring agent and coloring agent for nylon, polyester, polyurethane, rubber, polyolefin, unsaturated resin and other materials. Also the preparation method has the characteristics of one-step reaction, simple process and low equipment investment, and is easy to realize industrial production.

The invention relates to the field of biological medicines, and discloses application of short-chain quinone compounds in preparation of migraine treatment medicines. The short-chain quinone compoundscomprise a short-chain naphthoquinone compound, a short-chain benzoquinone compound, a short-chain phenanthrenequinone compound and a short-chain anthraquinone compound. And the short chain is a sidechain with a carbon chain length of 0-12. The short-chain quinone compound (SCQ) is applied to treatment of migraine for the first time, the treatment effect is remarkable, toxic and side effects arelow, and the improvement of the life quality of a patient is superior to the improvement of the highest recommended level of medicines for treating migraine at present. The compounds are of great significance to treatment of migraine which is a disability disease with the highest global morbidity as well as application and popularization of SCQ serving as a medicine. The invention provides saferand more excellent treatment for vast migraine patients, and brings hope for solving the treatment difficulty of migraine.

An aspect of the present invention relates to a radiation-curable polyurethane resin composition comprising a polyurethane resin containing a radiation-curable functional group and/or starting material compounds thereof, as well as component C in the form of a phenol compound, and component D in the form of at least one compound selected from the group consisting of a piperidine-1-oxyl compound, a nitro compound, a benzoquinone compound and a phenothiazine compound.

The invention discloses an allyl sulfonium amino p-benzoquinone compound and preparation and application thereof, relates to a compound shown in the general formula (I) or pharmaceutically acceptable salts and solvates thereof, and further relates to a preparation method of the compound and application of the compound in preparation of anti-tumor medicine.