CAS: 1703-58-8; Butane-1,2,3,4-Tetracarboxylic Acid

相似化合物

923-42-2 6940-58-5 15383-49-0

上下游产品

trans-cyclohex-4-ene-1,2-dicarboxylic acid racem.-butane-1,2,3,4-tetracarboxylic acid-1,4-diethyl ester-2,3-anhydrideracem.-butane-1,2,3,4-tetracarboxylic acid-1,4-diethyl ester-2,3-anhydride 1,2,3,6-Tetrahydrophthalic anhydride diethyl 2-bromosuccinate

Cis-1,2,3,6-Tetrahydrophthalic Anhydride置于potassium Permanganate,Sodium Carbonate体系中,化学反应生成丁烷四羧酸
参考文献:Dl-2,3-二羧基环戊基乙酸的进一步合成研究
标题:Dl-2,3-二羧基环戊基乙酸的进一步合成研究
摘要:先前提出的外消旋反式和顺式-顺式-2,3-二羧基环戊基乙酸的构型的分配已通过这些化合物的合成通过其他明确的反应序列得到证实.反式-顺-异构体已经通过顺-顺-异构体的3-羧基差向异构化制备,但合成第四个异构体(顺-反)的尝试没有成功.
Doi:10.1246/bcsj.39.525

专利信息

专利号:US-2022089618-A1
优先权日:2019-01-29
标题:Solid-State Synthesis Of Precursors Of Metal-Organic Frameworks
发明人：MAJANO GERARDO J; FALKOWSKI JOSEPH M
权利人:EXXONMOBIL RES & ENG CO
摘要:Metal-organic frameworks (MOFs) are highly porous entities comprising a multidentate ligand coordinated to multiple metal atoms, typically as a coordination polymer. MOFs are usually produced from a solvent in powder form under hydrothermal or solvothermal synthesis conditions. Alternately, powder-form precursors of MOFs may be formed by milling or mulling a substantially solid mixture of a metal salt and a multidentate organic ligand, optionally in the presence of a small amount of a solvent. The powder-form precursors may then undergo heating, typically in the absence of applied shear, to produce the corresponding MOF. Mulling may be differentiated from milling at least in that mulling applies to the substantially solid mixture at a non-constant pressure and milling applies a constant pressure while forming the powder-form precursor. In some cases, mulling may promote more effective formation of the powder-form precursor compared to milling.

专利号:US-2024191260-A1
优先权日:2022-12-08
标题:Methods of preparing stable nucleic acid liquid formulations
发明人：WANG YING; WOOTEN HARRISON R; JACKSON CARSON
权利人:UNIV OF NORTH CAROLINA AT WILMINGTON
摘要:Stable nucleic acid liquid formulations and methods of making and using the same are provided. According to some aspects, a method for preparing stable nucleic acid liquid formulations are provided that are resistant to nucleic acid degradation caused by enzyme-independent or enzymatic hydrolysis. In some instances, stable nucleic acid liquid compositions and methods or making the same incorporate the use of at least one of a polymer and/or a salt to form a macroscopic RNA-rich condensate. In other aspects, a method for preparing stable nucleic acid encapsulated lipid nanoparticle (LNP) liquid formulations is provided that are resistant to degradation caused by nucleic acid hydrolysis, LNP leakage, and LNP aggregation. In some instances, stable nucleic acid liquid compositions and methods or making the same incorporate the use of a pair of thermodynamically matching LNP synthesis buffer and LNP product formulation buffer with close-to-equal osmotic pressure and chemical potentials of solution components.

专利号:US-2009318592-A1
优先权日:2005-10-11
标 题 :Process for the Synthesis of Amine Ethers
发明人：FREY MARKUS; BROENNIMANN VALERIE
权利人:CIBA GEIGY CORP
摘要:The present invention relates to novel processes for the preparation of a sterically hindered amine ether by reacting a corresponding sterically hindered amine oxide with a ketone or an aldehyde with at least one reactive H in the presence of a peroxydisulphate. Products obtained by this process may be hydrogenated. The compounds made by these processes are particularly effective in the stabilization of polymer compositions against harmful effects of light, oxygen and/or heat and as flame-retardants for polymers.

专利号:US-10737239-B2
优先权日:2015-11-27
标题 :Ultrafast high space-time-yield synthesis of metal-organic frameworks
发明人：BURCKHART JULIA; MARX STEFAN; ARNOLD LENA; HOFMANN CLAUS; Müller Ulrich
权利人:BASF SE
摘要:The invention relates to a process for the preparation of metal-organic frameworks (MOFs) in form of a homogenous powder, and a process wherein the metal-organic framework is molded into shaped bodies.

专利号:US-10808079-B2
优先权日:2015-03-27
标 题:Synthesis of copolyimides containing fluorine and silicon surface modifying agents
发明人：CONNELL JOHN W; WOHL JR CHRISTOPHER J; DOSS JEREME R; CROW ALLISON M; KIM WILLIAM T; LIN YI
权利人:NASA
摘要:Various embodiments provide random copolyimides that may possess the mechanical, thermal, chemical and optical properties associated with polyimides yet achieve a low energy surface. In various embodiments, the copolyimides may be prepared using a minor amounts of a diamino terminated fluorinated alkyl ether oligomer and a diamino terminated siloxane oligomer. The various embodiments include processes for making the copolyimides containing fluorine and silicon surface modifying agents and anisotropic coatings and articles of manufacture from them. Thus the coatings and articles of manufacture made with the copolyimides of the various embodiments may be characterized as having an anisotropic fluorine and silicon composition and low surface energy.

专利号:US-2025011531-A1
优先权日:2020-06-25
标 题:Synthesis of environmentally degradable alkyl polyesters
发明人：PARK KINAM; GARNER JOHN SOLOMON
权利人:AKINA INC
摘要:A solid crosslinked polyester composition that is environmentally degradable in less than about 180 days. The crosslinked polyester can be the polyesterification reaction product between one or more multi-hydroxylic alcohols, one or more hydroxy acids, and one or more multi-carboxylic acid compounds. Alternately, the crosslinked polyester can be the polyesterification reaction product of one or more multi-hydroxylic alcohols, one or more hydroxy acids, one or more multi-carboxylic acid compounds, and a cyclic ester. Provided, however that if the one or more hydroxy acids has only one carboxyl group, it has two or more hydroxyl groups, and if the one or more hydroxy acids has only one hydroxyl group, it has two or more carboxyl groups.