172 results about "Enyne" patented technology

The present invention describes the use of cationic vinylidene, allenylidene and higher cumulenylidene complexes of ruthenium or osmium as catalysts or catalyst precursors for olefin metathesis reactions of all types, as well as to new cationic allenylidene complexes of ruthenium and osmium which can be used as metathesis catalysts with preferred embodiment. These catalysts or catalyst precursors are easy to prepare from well accessible, stable and essentially non toxic starting materials, can be isolated and stored, they exhibit a high catalytic activity, a good compatibility with functional groups, solvents, water and additives, and they need not to be activated by any additive. Olefins of all types can be used as the substrates in the present invention in ring closing metathesis (RCM) of acyclic dienes and polyenes, the metathesis of enynes and dienynes, the ring opening metathesis polymerization (ROMP) of cyclic olefins, the acyclic diene metathesis polymerization (ADMET) of acyclic dienes or polyenes, the depolymerization of olefinic polymers, and the cross metathesis of two or more olefins. The present invention also applies to combinations of these types of metathetic reactions and domino processes thereof.

The invention discloses a self-repairing solid-state hybrid dynamic polymer. The self-repairing solid-state hybrid dynamic polymer contains sulfydryl-Michael addition bond dynamic covalent crosslinking and supermolecular hydrogen bond interaction, wherein the sulfydryl-Michael addition bond dynamic covalent crosslinking reaches above a gel point in at least one crosslinking network; sulfydryl-Michael addition bonds are obtained through sulfydryl-Michael addition reaction between sulfydryl groups and electron-deficient conjugate alkenes/enynes; the supermolecular hydrogen bond interaction contains hydrogen bond interaction involving at least one from side hydrogen bond groups, backbone hydrogen bond groups and other end hydrogen bond groups; with dynamic reversibility, the sulfydryl-Michaeladdition bonds and the supermolecular hydrogen bonds endow the self-repairing solid-state hybrid dynamic polymer with good plasticity, self-repairability, repeatability, reusability and recoverability and ensure that the self-repairing solid-state hybrid dynamic polymer can be widely applied to self-repairing materials, flexible materials, shape memory materials, energy storage device materials and the like.

Catalytic systems and methods for oxidizing materials in the presence of metal catalysts (preferably manganese-containing catalysts) complexed with selected macropolycyclic rigid ligands, preferably cross-bridged macropolycyclic ligands. Included are using these metal catalysts in such processes as: synthetic organic oxidation reactions such as oxidation of organic functional groups, hydrocarbons, and heteroatoms, including enantiomeric epoxidation of alkenes, enynes, sulfides to sulfones and the like; oxidation of oxidizable compounds (e.g., stains) on surfaces such as fabrics, dishes, countertops, dentures and the like; oxidation of oxidizable compounds in solution, dye transfer inhibition in the laundering of fabrics; and further in the bleaching of pulp and paper products.

The invention discloses a process for synthesizing sex pheromone of pine caterpillar, which employs 2-hexyne-1-alcohol as an initial raw material, three-bond positional transference is carried out under the effect of lithium and propane diamine to obtain 5-hexyne-1-alcohol; under acidic condition, 5-hexyne-1-alcohol is reacted with dihydropyran to obtain 1-THP-5-hexyne-1-alcohol protected by THP on hydroxyl, Under co-catalysis of metal palladium and cuprous iodide, 1-THP-5-hexyne-1-alcohol and trans-dichloroethylene are subjected to coupling reaction to generate conjugate enyne(7E)-1-THP-8-chlorine-5-alkyne-7-alkene-1-octanol; under the catalysis of metallic iron, (7E)-1-THP-8-chlorine-5-alkyne-7-alkene-1-octanol and a n-Butyl bromide grignard reagent are further subjected to coupling reaction to obtain (7E)-1-THP-5-alkyne-7-alkene-1-dodecanol, under the catalytic reduction of metal zinc, (5Z, 7E)-1-THP-dodecanol dienol; under the camphor sulfonic acid condition, (5Z, 7E)-1-THP-dodecanol dienol removes the THP protective group to obtain the final target product (5Z, 7E)-dodecanol dienol. The method of the invention has the advantages of easily available synthesis raw materials, low cost, mild reaction condition, easy operation, high yield and good stereoselectivity.

The invention discloses a method for preparing a 1, 3-eneyne compound. The method is characterized in that at the room temperature and under the protection of nitrogen, an alkenyl iodine compound, substituent end alkyne, catalyst, cesium carbonate and a ligand are mixed in the mol proportion of 1-1.5:1:1-3:0.1-0.15:0.1-0.3; then a mixture is put into the solvent of toluene and dimethylbenzene to react for 36 to 72 hours with the temperature increased to 110 DEG C; and the 1, 3-eneyne compound is obtained after separating and purifying. Compared with the prior art, the invention has simple synthesis method, easily obtained raw materials, low reaction cost, high yield and no environmental pollution, and a generated product is kept with a double-bond configuration.

The invention discloses derivatives of 4-polyfluoroalkyl-2,4-disubstituted pyrroles as shown in a formula (II) and a preparation method thereof. The preparation method comprises the steps of dissolving fluorine-containing conjugated enyne, hydroxylamine hydrochloride and an alkali in an organic solvent, sufficiently reacting at a temperature ranging from 0 to the room temperature, removing the solvent, and obtaining fluorine-containing hydroxylamine compounds with an alkynyl group as shown in a formula (I) through column chromatography, next, dissolving the fluorine-containing hydroxylamine compounds with the alkynyl group in the organic solvent, cyclizing under co-catalysis of a gold catalyst and a protonic acid catalyst under the room temperature condition, removing the solvent, and obtaining the derivatives of the 4-polyfluoroalkyl-2,4-disubstituted pyrroles through column chromatography. The preparation method is capable of getting raw materials easily, high in yield, mild in reaction conditions, and simple to operate. The invention also provides the fluorine-containing hydroxylamine compounds with an alkynyl group as shown in the formula (I) and a preparation method thereof. The invention further provides a 2,4-disubstituted polyfluoroalkyl-containing pyrrole compound framework which plays an important role in synthesizing the substituted fluorine-containing pyrrole compounds.

The invention belongs to the technical field of organic synthetic chemistry and especially relates to a method for synthesis of a highly functionalized pyrrole compound. The highly functionalized pyrrole compound is obtained by two reaction processes. The method for synthesis of the highly functionalized pyrrole compound comprises that functionalized ketene dithioacetal and alkynol as raw materials are synthesized into a dialkylthio-substituted enyne compound and the dialkylthio-substituted enyne compound and primary amine are prepared into the highly functionalized pyrrole compound. The method for synthesis of the highly functionalized pyrrole compound has simple processes, adopts easily available raw materials and reagents, realizes simultaneous introduction of multiple substituent groups and easy separation purification of products, and is suitable for synthesis of various highly-functionalized pyrrole compounds.

The invention discloses a method for continuously preparing a dihydrobenzo [j] phenanthridine compound containing a trifluoromethyl functional group by using a micro-channel reaction device, which comprises the following steps: (1) dissolving a 1,7-eneyne compound and alkali in a proper solvent to obtain a material I; (2) dissolving a trifluoromethyl reagent and a photocatalyst in a proper solventto obtain a material II; (3) respectively pumping the material I and the material II into a micro-channel reaction device, fully mixing, and carrying out a photocatalytic trifluoromethylation reaction to obtain a reaction solution; and (4) quenching the reaction liquid, adding a corresponding organic solvent for extraction, collecting an organic phase, drying, concentrating and recrystallizing toobtain a target product. The micro-channel reaction device is used for preparing the 1,7-eneyne trifluoromethylation product, the reaction conditions are milder, the reaction rate can be effectivelycontrolled, the reaction time is shortened, continuous production is achieved, side reactions are reduced, the maximum product yield can reach 99.3%, the amplification effect is basically avoided, andindustrial amplification is facilitated.

The invention relates to a regioselective free radical cyclization reaction method of a 1, 6-enyne compound and azoalkyl nitrile under a mild condition. According to the method, the 1, 6-enyne compound, an azoalkyl nitrile compound, a catalyst, alkali and a solvent are added into a Schlenk reaction bottle for stirring reaction under certain temperature and air atmosphere conditions, thus obtaininga cyclization product.

The invention discloses a novel fluorocyclopentenone preparation method and a product thereof. The novel fluorocyclopentenone preparation method is characterized by comprising the following step: methyl tert-butyl ether, enynic ester, gold (acetonitrile)[(2-biphenyl)di-tert-butylphosphine] hexafluoroantimonate (I) and N-fluorobenzenesulfonimide are added to react, so that fluorocyclopentenone is obtained. The novel method for preparing a fluorocyclopentenone compound which is provided by the invention ensures that an enynic ester compound can be converted into the fluorocyclopentenone compound. The whole reaction is carried out under normal temperature and normal pressure, conditions are mild, and energy consumption is low. The whole reaction is carried out by utilizing a one-pot method, operation is easy, yield is high, and the purity of the product is 98 percent or more. The reaction substrate range is wide, and not only the simple enynic ester compound but also complex compounds containing natural product groups are applicable. The developed fluorocyclopentenone compound has potential bioactivity, and can become a drug by subsequent testing or modification.

Emulsions are prepared by heating and polymerizing a mixture containing (i) a non-crosslinked silicone polyether; (ii) optionally, a cosurfactant which can be a monohydroxy alcohol, diol, triol, or glycol ether; (iii) an =Si-H containing polysiloxane; (iv) a mono-alkenyl polyether; (v) an alpha,omega-diene, alpha,omega-diyne, or alpha,omega-ene-yne; (vi) optionally, a silicone oil such as (a) a low molecular weight linear or cyclic volatile methyl siloxane, or (b) a low molecular weight linear or cyclic volatile or non-volatile alkyl or aryl siloxane; (vii) a platinum catalyst; and (viii) water.

The invention discloses a furanone derivative shown in a formula (I) and a synthetic method thereof. By taking an acylated amine substituted enyne ester compound as a raw material, under the action of a catalyst, the furanone derivative shown in the formula (I) is synthesized. The preparation method disclosed by the invention has the advantages of simple and easily available raw materials, simple and convenient post-treatment, cheap catalyst, good yield, environmental friendliness, and the like. The formula (I) is as shown in the specification.

The invention discloses a synthetic method of a phosphonyl methylene substituted five-membered cyclic compound. According to the method, 1,6-enyne and diaryloxy phosphorus are taken as reaction raw materials, an organic dye is taken as a photocatalyst, a reaction solvent is added, an illumination reaction is carried out under a nitrogen protection condition, a target product is synthesized, and the structure of the target product is represented and analyzed through IR, 1H NMR, 13C NMR, HRMS and X-ray single crystal diffraction. The method does not need any additive, high temperature and otherharsh and complex reaction conditions, and has the advantages of mild reaction conditions, simple operation, convenient subsequent treatment, easily available raw materials, easy derivatization to obtain different types of organic compounds, and the like.

The present invention relates to a triazole compound. Said invention provides its general formula. Its preparation method includes the following steps: using 5-triazo-1,2,4 triazol-3-acyl methyl ester and propiolic alcohol ester acetate, p-amyl phenylacetylene, syclohexanol alkyne, cyclohexene alkyne or methoxyphenyl acetylene, and making them be reacted in the tetrahydrofuran or mixed solvent of tetrahydrofuran and water at 10-100 deg.C under the action of Cu(I) catalyst so as to obtain the required triazole compound. Said triazole compound has the activity for directly inhibiting plant virus, in particular inhibiting tobacco mosaic virus.

The invention relates to a three-arm mannose derivative and a preparation method thereof through combination with double-click chemistry. Firstly, a three-arm terminal alkene/ alkyne compound and [alpha]-D-azide mannose ([alpha]-Man-N3) are used for carrying out a CuAAC reaction between end group alkyne and azide to generate a rigid triazole group; then, the rigid triazole group and [alpha]-D-sulfydryl mannose ([alpha]-Man-SH) carry out a Thiol-ene reaction between end group alkene and the sulfydryl to generate a flexible thioether bond; and then, under an acidic condition of trifluoroacetic acid, protection of t-butyloxycarboryl is removed to obtain one series of three-arm mannose derivatives. Compared with the prior art, the invention utilizes the advantages of the click chemistry reaction to innovatively synthesize three kinds of three-arm mannose derivatives with different structures so as to be favorable for jointly utilizing RAFT polymerization in the later stage to prepare a sugar-containing polymer of which the side chain contains tri-functional mannose and perform an important guidance meaning for researching the influence of the rigidity and the flexibility of different branched chains of the polymer of which the side chain contains three-arm mannose for the biological characteristics.