4-乙基苯酚置于potassium Hydrogensulfate,Chromium Oxide-Cobalt Hydroxide-Calcium Carbonate Catalyst,Copper Oxide-Chromium Oxide,氧气,Sodium Acetate体系中,130.0~200.0 °C,13.73 Mpa 条件下,反应生成4-乙酰氧基苯乙烯 参考文献:The Use Of Liquid Phase Oxidation For The Preparation Of Nuclearly Substituted Styrenes. Ii. P-Vinylphenyl Acetate 标题:The Use Of Liquid Phase Oxidation For The Preparation Of Nuclearly Substituted Styrenes. Ii. P-Vinylphenyl Acetate 摘要: Doi:10.1021/ja01212A508
专利号:US-8101804-B2 优先权日:2006-07-28 标 题 :Process for the synthesis of (E)-stilbene derivatives which makes it possible to obtain resveratrol and piceatannol 发明人:SCHOUTEETEN ALAIN; JUS SEBASTIEN; VALLEJOS JEAN-CLAUDE 权利人:SCHOUTEETEN ALAIN; JUS SEBASTIEN; VALLEJOS JEAN-CLAUDE; CLARIANT SPECIALTY FINE CHEM F 摘要:A subject-matter of the present invention is a novel process for the synthesis of (E)-stilbene derivatives targeted at obtaining in particular resveratrol and piceatannol.
专利号:US-6162882-A 优先权日:1996-07-10 标 题:Preparation of novel homo- and copolymers using atom transfer radical polymerization 发明人:MATYJASZEWSKI KRZYSZTOF; COCA SIMION; GAYNOR SCOTT G; NAKAGAWA YOSHIKI; JO SEONG MU 权利人:UNIV CARNEGIE MELLON 摘要:The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydipersity index, in the presence of an initiating system comprising (i) an initiator having a radically transferrable atom or group, (ii) a transition metal compound, and (iii) a ligand, the present invention is also directed to the synthesis of a macromolecule having at least two halogen groups which can be used as a macroinitiator component (i) to subsequently form a block or graft copolymer by an atom or group transfer radical polymerization process; the present invention is also directed to a process of atom or group transfer radical polymerization for the synthesis of a branched or hyperbranched polymer; in addition, the present invention is directed to a process of atom or group transfer radical polymerization for the synthesis of a macroinitiator which can subsequently be used to produce a block or graft copolymer.
专利号:US-9783642-B1 优先权日:2016-04-12 标题 :Difunctional polyhedral oligomeric silsesquioxane derivative and synthesis thereof 发明人:LIN YUNG-CHIH; KUO SHIAO-WEI 权利人:NAT SUN YAT-SEN UNIV 摘要:A difunctional polyhedral oligomeric silsesquioxane derivative and synthesis of the present invention is disclosed. The difunctional polyhedral oligomeric silsesquioxane derivative is represented by following formula (I), wherein R is selected from one of n nandn n nThe synthesis of the difunctional polyhedral oligomeric silsesquioxane derivative includes obtaining bis-PA-DDSQ compound though addition reaction of DDSQ compound and 4-acetoxystyrene, obtaining bis-Ph-DDSQ compound though hydrolytic reaction of bis-PA-DDSQ compound and hydrazine, and obtaining bis-AlBz-DDSQ compound though cycloaddition reaction of bis-Ph-DDSQ compound and paraformaldehyde.
专利号:EP-2128179-B1 优先权日:2008-05-26 标 题:Solid-phase support for nucleic acid synthesis 发明人:MORI KENJIRO; MAETA ERI 权利人:NITTO DENKO CORP 摘要:According to the invention, there is provided a solid-phase support for nucleic acid synthesis, which is constituted of a porous copolymer particle containing a multifunctional vinyl monomer unit having two or more vinyl groups in one molecule and a monofunctional vinyl monomer unit having one vinyl group in one molecule, in which the solid-phase support has a swelling volume when soaked in acetonitrile of 3.5 ml/g or more and has a median particle diameter measured by a laser scattering particle size distribution measuring method within a range of from 50 to 120 µm. According to the solid-phase support for nucleic acid synthesis of the invention, a high-purity nucleic acid can be synthesized with a high yield.
专利号:US-8541524-B2 优先权日:2006-07-04 标 题 :Free-radical polymerization process in aqueous dispersion for the preparation of a block copolymer at least one block of which is a block of a halogenated polymer 发明人:FRINGANT CHRISTOPHE; VANDERVEKEN YVES; LACROIX-DESMAZES PATRICK; TONNAR JEFF 权利人:FRINGANT CHRISTOPHE; VANDERVEKEN YVES; LACROIX-DESMAZES PATRICK; TONNAR JEFF; SOLVAY 摘要:Process of controlled free-radical polymerization in aqueous dispersion for the preparation of a block copolymer at least one block of which is a block of a halogenated polymer using molecular iodine and at least one oxidant whose solubility in water is at least 10 g/l for the synthesis of the first block of the block copolymer.
专利号:US-9284336-B1 优先权日:2014-08-21 标题 :Synthesis of 4-(pentafluorosulfanyl)benzenediazonium tetrafluoroborate and analogs 发明人:LAALI KENNETH K 权利人:LAALI KENNETH K; UNIV NORTH FLORIDA 摘要:4-(pentafluorosulfanyl)benzenediazonium tetrafluoroborate salt was synthesized and isolated. The pentafluorosulfanyl salt was examined in a wide assortment of reactions to form novel SF 5 -bearing alkenes, alkynes, and biaryl derivatives using Heck-Matsuda, Sonogashira, and Suzuki coupling protocols. Dediazoniation of the salt furnished the corresponding p-SF 5 —C 6 H 4 X, C 6 H 4 OS(O)(CF 3 )â•?NSO 2 CF 3 , and p-SF 5 —C 6 H 4 —NTf 2 derivatives. The azide derivative p-SF 5 —C 6 H 4 N 3 entered into click chemistry with phenylacetylenes to furnish the corresponding triazoles. Various SF 5 -bearing alkenes were synthesized by coupling reactions using a metal catalyst. Fluorodediazoniation selectively furnished the fluoro derivative p-SF 5 —C 6 H 4 F. Homolytic dediazoniation gave the unsymmetrical biaryls, thus demonstrating the broad utility of pentafluorosulfanyl diazonium salts as building blocks of SF5-aromatics that are in high demand in many branches of chemistry including biomedicine and materials chemistry.