CAS: 632-93-9; Diethyl 2,4,6-Trimethyl-1,4-Dihydropyridine-3,5-Dicarboxylate

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CAS号141-97-9 乙酰乙酸乙酯 | CAS号75-07-0 乙醛 | CAS号50-00-0 甲醛 | CAS号631-61-8 乙酸铵 | CAS号15301-37-8 2-乙酰基-2-丁酸乙酯 | CAS号108-05-4 乙酸乙烯酯 | CAS号626-34-6 3-氨基巴豆酸乙酯 | CAS号64-17-5 乙醇 | CAS号75926-37-3 ethyl 5-((benzy... | CAS号74955-84-3 2,4,4,6-tetrame... | CAS号20329-31-1 2,4,6-tris(2,2-... | CAS号1150-55-6 3,5-Pyridinedic... | CAS号1149-24-2 2,6-二甲基吡啶-3,5-二甲酸二乙酯 | CAS号64-17-5 乙醇 | CAS号54509-73-8 ethene | CAS号1123-09-7 3,5-二甲基-2-环己烯-1-酮 | CAS号1721-13-7 2,6-二甲基烟酸乙酯 | CAS号61360-76-7 2,4-bis(2,2-dip...

Alkaline Earth Salt Of/the/ Methylsulfuric Acid置于乙醇,氢化铝体系中,化学反应生成 1,4-二氢-2,4,6-三甲基-3,5-吡啶二甲酸二乙酯
参考文献:Mumm; Beth,Chemische Berichte,1921,Vol. 54,P. 1600
标题:Mumm; Beth,Chemische Berichte,1921,Vol. 54,P. 1600

专利信息

专利号:US-2018297857-A1
优先权日:2015-06-02
标 题:Aqueous Synthesis of Polyhedral 'Brick-Like' Iron Oxide Nanoparticles for Hyperthermia and T2 MRI Contrast Enhancement, and for Targeting Endothelial Cells for Therapeutic Delivery
发明人：HEGMANN TORSTEN; WORDEN MATTHEW; MILLER DONALD W
权利人:UNIV KENT STATE OHIO
摘要:A low temperature, aqueous synthesis of polyhedral iron oxide nanoparticles (IONPs) is presented. The modification of the co-precipitation hydrolysis method with Triton X surfactants results in the formation of crystalline polyhedral particles. The particles are herein termed iron oxide “nanobricksâ€? (IONBs), as the varieties of particles made are all variations on a simple “brick-likeâ€?, polyhedral shape such as rhombohedral shape or parallelogram as evaluated by TEM. These IONBs can be easily coated with hydrophilic silane ligands, allowing them to be dispersed in aqueous media. The dispersed particles are investigated for potential applications as hyperthermia and T 2 MRI contrast agents. The results demonstrate that the IONBs perform better than comparable spherical IONPs in both applications, and show r 2 values amongst the highest for iron oxide based materials reported in the literature.

专利号:US-5239023-A
优先权日:1990-10-24
标 题 :Process for the synthesis of crystallizable 3,4-polyisoprene and isoprene-butadiene copolymers having high vinyl contents
发明人：HSU WEN-LIANG; HALASA ADEL F
权利人:GOODYEAR TIRE & RUBBER
摘要:Crystallizable 3,4-polyisoprene and isoprene-butadiene copolymers having high vinyl contents can be synthesized in organic solvents to quantitative yields after short polymerization times by utilizing the catalyst systems of this invention. The 3,4-polyisoprene made utilizing this catalyst system is strain crystallizable and can be employed in tire treads which provide improved traction and improved cut growth resistance. This invention specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent at a temperature which is within the range of about -10 DEG C. to about 100 DEG C. in the presence of a catalyst system which is comprised of (a) an organoiron compound which is soluble in the organic solvent, wherein the iron in the organoiron compound is in the +3 oxidation state, (b) a partially hydrolyzed organoaluminum compound which was prepared by adding a protonic compound selected from the group consisting of water, alcohols and carboxylic acids to the organoaluminum compound, and (c) a chelating aromatic amine; wherein the molar ratio of the chelating amine to the organoiron compound is within the range of about 0.1:1 to about 1:1, wherein the molar ratio of the organoaluminum compound to the organoiron compound is within the range of about 5:1 to about 200:1, and wherein the molar ratio of the protonic compound to the organoaluminum compound is within the range of about 0.001:1 to about 0.2:1.

专利号:US-5061765-A
优先权日:1990-10-22
标题:Process for the synthesis of a high vinyl isoprene-butadiene copolymer
发明人：HSU WEN-LIANG; HALASA ADEL F
权利人:GOODYEAR TIRE & RUBBER
摘要:Isoprene-butadiene copolymers having high vinyl contents can be synthesized in organic solvents to high yields after short polymerization times by utilizing the process of this invention. The isoprene-butadiene copolymers made utilizing the process of this invention have a glass transition temperature which is within the range of about 0° C. to about -60° C. and can be employed in tire treads which provide improved traction and improved cut growth resistance. This invention specifically discloses a process for the synthesis of isoprene-butadiene copolymers having a high vinyl content which comprises copolymerizing isoprene monomer and butadiene monomer in an organic solvent at a temperature which is within the range of about -10° C. to about 100° C. in the presence of a catalyst system which is comprised of (a) an organoiron compound, (b) an organoaluminum compound, (c) a chelating aromatic amine, and (d) a protonic compound; wherein the molar ratio of the chelating amine to the organoiron compound is within the range of about 0.1:1 to about 1:1, wherein the molar ratio of the organoaluminum compound to the organoiron compound is within the range of about 5:1 to about 200:1, and wherein the molar ratio of the protonic compound to the organoaluminum compound is within the range of about 0.001:1 to about 0.2:1.

专利号:US-12264143-B2
优先权日:2020-12-17
标 题:Synthesis of cannabinoids and cannabinoid precursors, and related compounds, formulations, and methods of use
发明人：SAMMIS GLENN M; ROGGEN MARKUS
权利人:NALU BIO INC
摘要:Methods are provided for the synthesis of cannabinoids, including cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabidiolic acid (CBDA), cannabigerol (CBG), cannabigerolic acid (CBGA), cannabidivarin (CBDV), cannabidibutol (CBD-C4), dihydrocannabidiol (DCBD), tetrahydrocannabivarin (THCV), analogs thereof, and precursors to the foregoing. One method employs phloroglucinol or a phloroglucinol analog as a starting material. The syntheses are stereospecific, efficient, selective, and cost-effective, with little or no potential for generation of THC ((−)-trans-Δ9-tetrahydro-cannabinol) or any other psychoactive side product. Telescoped syntheses are also provided, as are new cannabinoids, pharmaceutical formulations, and methods of use.

专利号:US-6133473-A
优先权日:1998-06-25
标 题 :Synthesis of carbamate compounds
发明人：BERRIER JOHN VINCENT
权利人:ROHM & HAAS
摘要:Disclosed is a method for the preparation of carbamate compounds substantially free of by-products; the carbamate compounds being prepared by reacting an isocyanate with a hydroxylated compound in the presence of certain catalysts that increase the rate of carbamylation while decreasing the rate of by-product formation.

专利号:US-6166212-A
优先权日:1999-05-20
标 题 :Process for the synthesis of N-(hydroxyalkoxy) substituted hindered amine stabilizers
发明人：GALBO JAMES P; DETLEFSEN ROBERT E; DIFAZIO MICHAEL P; GRACE HENRY C; KUELL CHRISTOPHER
权利人:CIBA SC HOLDING AG
摘要:N-(Hydroxyalkoxy) hindered amine stabilizers are prepared by reacting the corresponding N-oxyl compound with a peroxide or organic hydroperoxide and a catalytic amount of a metal salt or metal-ligand complex in an alcohol solvent. These N-(hydroxyalkoxy) hindered amines are particularly useful as stabilizers for polyolefins, thermoplastic polyolefins and automotive coating compositions.