52 results about "Propargyl ether" patented technology

The core structure of 2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose with an anti-colorectal carcinoma activity is that a 1,2,4-triazole derivative substitutes 2-site of 1,3,4,6-O- acetyl-D-glucose. The above compound has a good activity of inhibiting colorectal carcinoma cells, and can be used as an anti-colorectal carcinoma medicine. A synthesis method of the above compound comprises the following steps: 2-amino-D-glucose hydrochloride and an azidation reagent are used as raw materials to generate a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate under an alkaline condition; 3-propargyl bromide and phenylcarbinol react under the action of sodium hydride to generate phenyl propargyl ether; and the 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and phenyl propargyl ether undergo a click reaction in a solvent under the catalysis of monovalent copper to generate 2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose.

The present invention provides benzoxazine containing propargyl group as formula (I):

The present invention provides a method of preparing a compound of formula (I). The present invention also provides a flame resistant resin.

The invention discloses 2-(1',2',3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose with anti-rectal cancer activity. The 2-(1',2',3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose has a core structure of 1,3,4,6-O-acetyl-D-glucose subjected to 1,2,4-triazole derivative 2-site substitution. The above compound has good rectal cancer cell inhibition activity and can be used as a drug for resisting rectal cancer. A compound synthesis method comprises that 2-amino-D-glucose hydrochloride and an azidation reagent as raw materials undergo a reaction under alkaline conditions to produce a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate, 3-propargyl bromide and aromatic methanol undergo a reaction under the action of sodium hydride to produce aromatic propargyl ether, and the 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and the aromatic propargyl ether undergo a click reaction in a solvent in the presence of monovalent copper as a catalyst to produce 2-(1', 2', 3'-triazolyl-4'-oxymethylenepyridyl)-1,3,4,6-O-acetyl-D-glucose.

The invention discloses a new benzoxazine intermediate containing propargyl ether and a preparation method of relative polymer. The synthesis route comprises using monoamine containing propargyl ether group, dihydric phenol (or polyhydric phenol) containing rigid structure and formaldehyde as reaction materials to synthesize benzoxazine intermediate containing propargyl ether, solidifying and crosslinking to obtain thermosetting high-performance benzoxazine resin containing propargyl ether which has excellent heat resistance and glass transition point reaches 300DEG C. The inventive benzoxazine intermediate containing propargyl ether can be independently used or mixed with other benzoxazine intermediates, benzoxazine intermediate containing propargyl ether a or epoxy resin, while the solidified product has excellent heat resistance and the application for producing structural material, electric insulated material, electronic packaging material, fireproof material, glowing resistant material and brake material applied above 250DEG C.

The invention relates to modified silicon-containing aryne resin. A preparing method of the modified silicon-containing aryne resin includes the following steps: (1) preparing silicon-containing aryne polymer, (2) preparing benzoxazine compound, (3) preparing propargyl ether compound, and (4) preparing the modified silicon-containing aryne resin, mixing 50-90 parts by weight of the silicon-containing aryne polymer obtained through the step (1), 5-25 parts by weight of the benzoxazine compound obtained through the step (2) and 5-25 parts by weight of the propargyl ether compound obtained through the step (3), and leading the mixture to be stirred for reacting in a reactor comprising a stirrer, a thermometer and a reflux condensing pipe with inert gases to obtain the modified silicon-containing aryne resin. The oxazine and alkyne compound modified silicon-containing aryne resin and the preparing method of the modified silicon-containing aryne resin have the advantages that the modified silicon-containing aryne resin can be dissolved in many common solvents, is low in softening point and melting resin viscosity, and can generate solidifying reaction under heat, irradiation and even light effect. Resin condensates are good in heat resistance and can be well bonded with reinforcing fiber, and compound materials of the modified silicon-containing aryne resin have good mechanical performance and heat resistance.

The invention discloses a photochromic naphthopyrans compound and the synthesis process in the chemical industry technology field. The synthesis process comprises heating up 3 substituted beta naphthol and propargyl alcohol compound under the catalysis condition to reduce into propargyl ether, conducting a Claise rearrangement reaction, finally generating naphthopyrans compound through the cyclization of quinoid compound. The structural general formula is showed as followed, wherein R1 and R2 respectively represent alkyl, nitro, alkoxy and halogen atom. The naphthopyrans compound of the invention is mainly used as photochromic matters of lens such as sunglasses and windscreen of cars and the like.

The invention discloses a carborane and a synthesis method thereof. In the method, propiolic halide is adopted as a raw material to synthesize propargyl ether containing unsaturated carbon-carbon double bond through nucleophile substitution reaction, and the alkynyl in the propargyl ether is adducted with decaborane to obtain reactive carborane in which a carbon-carbon double bond is bonded on a cage type carborane structure through an ether bond. The synthesized reactive carborane, which is liquid at normal temperature, can have an effect of a plasticizer while being used as a composite solid burning-rate catalyst of a propellant. The unsaturated group carbon-carbon double bond, which has disconjugacy and strong reactivity, contained in the carborane is expected to overcome migration through taking part in the crosslinking curing reaction with the composite solid propellant. The carborane containing unsaturated carbon-carbon double bond has low synthesis cost and simple and convenient production technique, and is beneficial for industrial production.

The invention discloses an electroplating solution for phosphorous acid system plating of Ni-P alloy and an electroplating method. The electroplating solution comprises 200-260g/L NiSO4.6H2O, 30-70g/L NiCl2.6H2O, 20-50g/L H3PO3, 30-50g/L H3BO3, 25-45g/L fluoride, 25-50g/L citrate, 5-10g/L a saccharin salt, 0.5-0.7g/L hydroxyethyl propargyl ether and 0.05-0.2g/L a cationic surfactant. According to the invention, citrate is adopted as the coordination agent to be in favor of co-deposition of nickel and phosphorus and better control of the nickel and phosphorus content of the coating, and hydroxyethyl propargyl ether and the saccharin salt are used in combination as the brightener. Therefore, the Ni-P alloy coating has great hardness, strong wear resistance, and corrosion resistance.

The invention discloses an electroplating liquid for an electroplating treatment. The electroplating liquid is prepared from the following raw material components in parts: 20-25 parts of nickel oxide, 15-20 parts of zinc sulphate, 10-12 parts of aluminium sulphate, 13-15 parts of stannous sulphate, 10-12 parts of manganese sulphate, 3-5 parts of 1,4-bis(phenylacetenyl) benzene, 3-4 parts of dipolyphenyl propargyl ether, 2-3 parts of sodium benzoate, 10-20 parts of oxalic acid, 8-10 parts of potassium fluoborate, 6-8 parts of potassium fluotitanate, 5-6 parts of hydrofluoric acid, 5-8 parts of sodium fluosilicate, 3-5 parts of lead acetate, 10-15 parts of cobalt acetate, 10-12 parts of zinc acetate, 10-15 parts of ethylene glycol monomethyl ether, 3-5 parts of triethylene glycol, 2-4 parts of sodium tripolyphosphate, 3-5 parts of sodium hexametaphosphate, 3-5 parts of sodium pyrophosphate and 8-10 parts of silicone oil. The electroplating liquid for the electroplating treatment is good in corrosion resistance and wear resistance, capable of effectively preventing copper atoms from diffusing to an electrolyte during a use process and reducing waste, fast in precipitation speed, wide in current density range, low in electric energy consumption, good in electroplating quality, and capable of prolonging the service lives of metal copper wires.

The invention relates to a modified bismaleimide resin with meta-phenethyne propyl ether and a preparation method thereof. The invention is characterized in that: by adopting withmeta-phenethyne propyl ether as modifier, copper chloride or/and cuprous chloride as catalyst, the modified bismaleimide resin is obtained by stirring and reaction at the temperature of 150-160 DEG C. The modified bismaleimide resin has not only excellent processability, but also excellent toughness and thermal stability after materials are cured, besides, glass transition temperature is over 400 DEG C. Furthermore, carbon fiber reinforced composite produced with the modified bismaleimide resin has excellent mechanical property and high temperature resistance performance and can be widely applied to high-technical fields such as aviation, aerospace, etc.

Relating to a plasticizer preparation method, the invention discloses a method for turning biomass cardanol into a chloroprene rubber internal plasticizer by click chemistry. The method includes: firstly reacting cardanol with propargyl bromide to prepare propargyl ether cardanol and chloroprene rubber with an azido structure, then carrying out click chemistry reaction to realize reaction of the propargyl ether cardanol and chloroprene rubber with an azido structure, thus realizing internal plasticization of chloroprene rubber. The method for internal plasticization of chloroprene rubber withthe natural biomass raw material by click chemistry reaction disclosed by the invention has the advantages that: the cardanol raw material is sufficient, the chemical reaction process is simple, the product has obvious plasticization effect, excellent thermal stability and near zero migration of plasticizer, therefore the chloroprene rubber internal plasticizer is a new product conforming to the green and environment-friendly circular economy concept and has very broad market prospects.

The invention relates to a synthesis method of cyclopropyl allene derivatives. According to the method, cyclopropyl acetylene is used as starting materials for preparing metal cyclopropylacetylide and takes reaction with aldehyde for preparing cyclopropyl propargyl alcohol derivatives, hydroxyls of the cyclopropyl propargyl alcohol derivatives are protected to prepare cyclopropyl propargyl ether or cyclopropyl propargyl ester, and the cyclopropyl propargyl ether or the cyclopropyl propargyl ester takes reaction with Grignard reagents under the metal catalysis, and cyclopropyl allene is finally obtained. The method provided by the invention solves the problems of the existing method that raw materials cannot be easily obtained, the price is high, and the like. The method provided by the invention has the advantages that the raw materials are easy to obtain, in addition, the cyclopropyl is firstly introduced, and various substituent functional groups are then introduced, the variable of the synthesis of various kinds of cyclopropyl allene depends on the aldehyde and the Grignard reagents adopted in the reaction in the last step, and the Grignard reagents are prepared from halogenated hydrocarbon which is cheap and is easy to obtain (the varieties are many), so the method provided by the invention is more suitable for the synthesis of a series of cyclopropyl allene with various substituent groups.

The invention discloses a ternary system resin and a preparation method thereof, and a composite material and a preparation method thereof. The preparation method of the ternary system resin comprisesthe following steps: dissolving arylsilyl-containing propargyl ether resin into a solution, uniformly mixing with cyanate ester and benzoxazine, and performing reduced pressure rotary evaporateion, thereby obtaining the product. If the sum of the addition amount of the arylsilyl-containing propargyl ether resin, cyanate ester and benzoxazine is 100%, the sum of the mass fraction of the cyanate ester and benzoxazine is 10-50%, and the mass fraction of the arylsilyl-containing propargyl ether resin is 50-90%. The mechanical property of the arylsilyl-containing propargyl ether resin is improvedby mixing the cyanate ester and benzoxazine, so that the modified arylsilyl-containing propargyl ether resin with excellent mechanical property and high heat resistance is provided and is used for preparing a carbon fiber reinforced composite material.

The subject matter of the invention is the application of 9-O-propargyl ethers of cinchona alkaloids of general formula represented by formula (1) wherein respective ethers have the following absolute configuration at C-8 and C-9 atoms: (8R,9S) –cinchonine configuration or (8S,9R) –cinchonidine configuration or (8R,9R) –9-epicinchonine configuration or (8S,9S) –9-epicinchonidine configuration for the manufacture of drugs used in cancer chemotherapy.

The invention relates to preparation and application of 1-(1',3',4',6'-tetra-O-acetyl-alpha/beta-D-glucopyanosyl)-4-para-substituted benzyl oxyl methyl-[1,2,3]-triazole serial compounds, wherein the core structure thereof is formed by the substitution of 1,2,3-triazole derivatives at 1,4. The compounds have a good inhibitory activity for rectal carcinoma cells, and can serve as medicine for resisting rectal cancer. The synthetic method of the compounds comprises the following steps: a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate is prepared; 4-para-substituted arylpropargyl ether is prepared; 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and 4-para-substituted arylpropargyl ether are subjected to a click reaction in a solvent under the catalyzation of copper(i) to form 1-(1',3',4',6'-tetra-O-acetyl-alpha/beta-D-glucopyanosyl)-4-para-substituted benzyl oxyl methyl-[1,2,3]-triazole serial compounds.

The invention discloses a propargyl ether resin with a main chain containing a pyridine ring aromatic bisphenol-type terminal and a preparation method thereof. The resin is characterized in that the structural formula is shown in the specification and the resin is prepared by utilizing a phase transfer catalysis reaction method. The prepared resin structurally comprises a propargyl ether structure, and pyridine ring is introduced in the resin, so that the cured products of the resin are excellent in heat resistance. The propargyl ether resin disclosed by the invention can be applied to the fields of resin matrixes, high-temperature-resistant adhesives, special coatings, ceramic precursors, functional materials and the like.

The invention relates to a biodiesel additive and a preparation method of the biodiesel additive. The biodiesel additive comprises the following components by weight: 10-25 parts of dodecyl methacrylate, 10-20 parts of cyclohexylamine, 7-16 parts of methylbenzene, 2-15 parts of isooctyl nitrate, 5-15 parts of polyisobutylene amine, 1-7 parts of diethyl phthalate, 1-10 parts of phenyl propargyl ether, 5-15 parts of benzotriazole, and 1-8 parts of isooctyl alcohol. The provided biodiesel additive has an excellent effect of reducing the cold filter plugging point, does not cause the problem of reversion of the cold filter plugging point, does not affect the effects of other diesel additives, has an excellent stable dispersing power, and is excellent in oil solubility.