CAS: 89-00-9; Pyridine-2,3-Dicarboxylic Acid

上下游产品

CAS号91-22-5 喹啉 | CAS号98-98-6 2-吡啶甲酸 | CAS号124-38-9 二氧化碳 | CAS号2050-22-8 吡啶-2,3-二羧酸二乙酯 | CAS号18704-37-5 8-喹啉磺酰氯 | CAS号148-24-3 8-羟基喹啉 | CAS号548-93-6 3-羟基-2-氨基苯甲酸 | CAS号91-63-4 2-甲基喹啉 | CAS号91-62-3 6-甲基喹啉 | CAS号611-32-5 8-甲基喹啉 | CAS号4430-77-7 6,7-二氢吡啶并[2,3-d... | CAS号36052-27-4 3-氨基吡啶-2-羧酸甲酯 | CAS号321-02-8 烟酸单核苷酸 | CAS号4664-00-0 2,3-吡啶二甲酰亚胺 | CAS号498-95-3 3-哌啶甲酸 | CAS号82949-15-3 cis-2,3-piperid... | CAS号4043-87-2 2-哌啶甲酸 | CAS号18970-62-2 2,3-Pyridinedic... | CAS号59-67-6 烟酸 | CAS号98-92-0 烟酰胺

喹啉置于硫酸,双氧水,臭氧体系中,化学反应生成 2,3-吡啶二甲酸
参考文献:Ozonolysis Of Quinolines: A Versatile Synthesis Of Polyfunctional Pyridines
标题:Ozonolysis Of Quinolines: A Versatile Synthesis Of Polyfunctional Pyridines
摘要:描述了一种简单,安全且高效的程序,易于大规模适应,用于合成取代的喹啉2,这些喹啉在矿物酸存在下可被臭氧迅速氧化,随后进行过氧化氢的氧化处理,得到取代的2,3-吡啶二甲酸3A-D,F和酰基吡啶3E,G.
DOI:10.1055/s-1989-27423

专利信息

专利号:US-8680276-B2
优先权日:2009-03-06
标题 :Synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine
发明人：MOTTERLE RICCARDO; ARVOTTI GIANCARLO; BERGANTINO ELISABETTA; CASTELLIN ANDREA; FOGAL STEFANO; GALVAGNI MARCO
权利人:MOTTERLE RICCARDO; ARVOTTI GIANCARLO; BERGANTINO ELISABETTA; CASTELLIN ANDREA; FOGAL STEFANO; GALVAGNI MARCO
摘要:The present invention relates to the stereoselective synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine, as well as the conversion thereof, to give Moxifloxacin. Particularly, the present invention relates to a method for the synthesis of (4aS,7aS)-octahydro-1H-pyrrolo[3,4-b]pyridine of formula (I) comprising: (a) the optical resolution by enzymatic hydrolysis of the intermediate dialkyl-1-alkylcarbonylpiperidine-2,3-dicarboxylate racemate of formula (II) to give, following isolation, the intermediate dialkyl-(2S,3R)-1-alkylcarbonyl-piperidine-2,3-dicarboxylate of formula (III) in which AIk is a straight or branched C1-C5 alkyl group; (b) the conversion of the intermediate (III) to (4aR,7aS)-1-alkylcarbonylhexahydrofuro[3,4-b]pyridine-5,7-dione of formula (IV) in which AIk has the meanings set forth above; (c) the conversion of the intermediate (IV) to (4aS,7as)-octahydro-1H-pyrrolo[3,4-b]pyridine of formula (I) with an optical purity above 99%.

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-12263464-B2
优先权日:2018-03-14
标题 :Method for in-situ synthesis of metal organic frameworks (MOFs), covalent organic frameworks (COFs) and zeolite imidazolate frameworks (ZIFs), and applications thereof
发明人：PAHWA DEEPAK; PAHWA VARUN; CHOUDHARY ANIL KUMAR; SONIA; JHA VIVEK KUMAR; CHAUHAN ANJALI; YADAV ANNU
权利人:DESICCANT ROTORS INTERNATIONAL PRIVATE LTD
摘要:The present invention relates to a method for the in situ synthesis of of MOFs (metal organic frameworks), COFs (covalent organic frameworks), and ZIFs (Zeolitic imidazolate framework), onto and within different types of porous substrates, and their applications. The present invention provides a unique and easy to utilize method by which a number of MOFs, COFs and ZIFs can be synthesized directly onto and within a porous substrate with high performance efficiency ensuring higher grammage in formation of adsorbent product onto and within the substrate.

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.