3,5-二甲基吡啶置于potassium Permanganate体系中,用 水 作为反应溶剂,化学反应 16.0H,以67%的收率获得产物3,5-吡啶二甲酸 参考文献:将基于双-β-二酮的[m 2 L 2]双核平台自组装为二维配位聚合物† 标题:将基于双-β-二酮的[m 2 L 2]双核平台自组装为二维配位聚合物† 摘要:在其两个β-二酮结构域之间掺入3,5-取代的吡啶环的双-β-二酮配体(1,1'-(吡啶-3,5-二基)双(4,4-二甲基戊烷-1,3-报道了二酮),H 2 L 1)及其与三个二价阳离子(cu 2 +,Zn 2+和pd 2+)的相互作用.在每种情况下均获得类型为[m 2 L 1 2]的带电荷中性双核金属环,并确定了它们的x射线结构.[pd 2 L 1 2]包含两个方形o 4协调的金属中心.锌(II)和铜(II)配合物包含五坐标的o4 N 1-金属中心,相邻的[m 2 L 1 2]金属环中的吡啶氮原子配位形成{[zn 2 L 1 2] N(dmf) N }和{[cu 2 L 1 2] N(dmf) N }.配位聚合物的去溶剂化导致结晶度的损失. DOI:10.1039/c9Ce00896A
专利号:US-8735586-B2 优先权日:2007-06-26 标 题 :Regioselective copper catalyzed synthesis of benzimidazoles and azabenzimidazoles 发明人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARÉ MARC; URMANN MATTHIAS; HALLAND NIS; RKYEK OMAR 权利人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARÉ MARC; URMANN MATTHIAS; HALLAND NIS; RKYEK OMAR; SANOFI SA 摘要:The present invention relates to a process for the regioselective synthesis of compounds of the formula I, n nwherein R0; R1; R2; R3; R4; R5; A1; A2; A3; A4, Q and J have the meanings indicated in the claims. The present invention provides a direct copper catalyzed regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides.
专利号:WO-2024208876-A1 优先权日:2023-04-03 标题 :Ductile polyamide with the in situ synthesis of a polyimide phase by reactive extrusion 发明人:CASSAGNAU PHILIPPE; DELAGE KARIM; BOUNOR-LEGARE VÉRONIQUE; MARESTIN CATHERINE; DUBOIS CHARLOTTE; GAROIS NICOLAS 权利人:TOTALENERGIES ONETECH; UNIV CLAUDE BERNARD LYON 1 UCBL; CENTRE NAT RECH SCIENT; UNIV JEAN MONNET SAINT ETIENNE UJM; INSTITUT NAT DES SCIENCES APPLIQUEES DE LYON INSA LYON 摘要:The disclosure relates to a ductile polyamide and to a process to produce a ductile polyamide comprising providing components comprising one or more polyamides, one or more dianhydrides, and one or more diamines; wherein the one or more polyamides are provided at a content of at least 60 wt.% based on the total weight of the components; and wherein the one or more polyamides comprise at least one polyamide having amide groups separated by less than 10 carbon atoms; performing in situ synthesis of a polyimide by reactive extrusion of the components wherein the residence time is less than 10 minutes; and recovering a polyamide-polyimide blend being a ductile polyamide comprising a continuous polyamide phase and a dispersed polyimide phase.
专利号:US-5002641-A 优先权日:1990-06-28 标题:Electrochemical synthesis of niacin and other N-heterocyclic compounds 发明人:TOOMEY JR JOSEPH E 权利人:REILLY IND INC 摘要:An electrochemical oxidation of a pi-deficient N-heterocyclic precursor compound having an oxidizable organic group attached by a carbon-to-carbon linkage. This precursor compound is at least sparingly water soluble. The preferred electro-oxidation is conducted at an effective anode and in a medium which consists essentially of water, carboxylic acid, and the precursor compound. Preferred are electro-oxidations of substituted pyridine and quinoline bases and a particularly preferred aspect provides a convenient electrochemical synthesis of niacin from 3-methylpyridine.
专利号:EP-2173747-B1 优先权日:2007-06-26 标 题:A regioselective metal catalyzed synthesis of annelated benzimidazoles and azabenzimidazoles 发明人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARE MARC; R KYEN OMAR; URMANN MATHIAS; HALLAND NIS 权利人:SANOFI SA 摘要:The present invention relates to a process for the regioselective synthesis of compounds of the formula I, wherein R1; R2; R3; R4; J1; J2; J3; J4 and G have the meanings indicated in the claims. The present invention provides a direct metal, e.g. palladium or copper, catalyzed, regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides.
专利号:US-2004110228-A1 优先权日:2002-04-01 标 题:Combinatorial organic synthesis of unique biologically active compounds 发明人:MCALPINE SHELLI R; TAYLOR RACHEL E; BOLLA MEGAN L; SEGALL ANCA M 摘要:The invention provides a method for making a combinatorial library of cyclic compounds, such as Holliday junction-trapping compounds, comprising the steps of (a) obtaining a plurality of trimers according to the generic structure X 1- X 2- X 3 , wherein X 1 , X 2 and X 3 can be independently any naturally or nonnaturally occurring amino acids or peptidomimetics thereof; (b) optionally coupling a spacer S to the trimer at either end; (c) cyclizing two trimers or trimer-spacer conjugates in a head-to-tail orientation; thereby obtaining a combinatorial library of compounds, wherein the library does not include an unmodifed or naturally occurring Holliday Junction-trapping compounds. The invention additionally provides methods macrocyclic compounds that are synergimycin derivatives.
专利号:EP-2960274-A1 优先权日:2014-06-23 标题 :One pot synthesis of thermally reduced graphene oxide (TRGO)-polymer nanocomposites. 发明人:BOBENRIETH ALEXIS 权利人:SOLVAY 摘要:Process for manufacturing a thermally reduced graphene oxide-polymer nanocomposite from graphene oxide and monomer(s) comprising at least: n(A) a thermal reduction of graphene oxide, so as to form said thermally reduced graphene oxide, and n(B) a polymerization of the monomer(s) in the presence of said thermally reduced graphene oxide to yield said nanocomposite, n(A) and (B) being performed in the same reactor, nwherein polymerization (B) is only started when the oxygen content of the thermally reduced graphene oxide formed from the graphene oxide reaches a value below 15%. The present invention further relates to a nanocomposite and a Masterbatch obtainable by said process.
摘要:Schafer, E. W., Jr., and W. A. Bowles Jr. 1985. Acute oral toxicity and repellency of 933 chemicals to house and deer mice. Archives of Environmental Contamination and Toxicology 14:111-129. 摘要:K.C. Ong, B. Douglas and R.A. Robinson. J. Chem. Eng. Data 11, 574 (1966). 参考文献:10.1007/s00253-001-0928-x 摘要:Schräder T, Thiemer B, Andreesen JR. A molybdenum-containing dehydrogenase catalyzing an unusual 2-hydroxylation of nicotinic acid. Appl Microbiol Biotechnol. 2002 Apr;58(5):612–7. doi: 10.1007/s00253-001-0928-x. 参考文献:10.1107/s0108768105030077 摘要:Cowan JA, Howard JA, McIntyre GJ, Lo SM, Williams ID. Variable-temperature neutron diffraction studies of the short, strong hydrogen bonds in the crystal structure of pyridine-3,5-dicarboxylic acid. Acta Crystallogr B. 2005 Dec;61(Pt 6):724–30. doi: 10.1107/s0108768105030077.