CAS: 121-91-5; Isophthalic Acid

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1459-93-4 24964-64-5 619-21-6

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CAS号108-38-3 间二甲苯 | CAS号99-04-7 间甲基苯甲酸 | CAS号626-19-7 间苯二甲醛 | CAS号95-63-6 1,2,4-三甲苯 | CAS号67-56-1 甲醇 | CAS号201230-82-2 carbon monoxide | CAS号108-36-1 1,3-二溴苯 | CAS号585-74-0 间甲基苯乙酮 | CAS号108-70-3 均三氯苯 | CAS号108-67-8 均三甲苯 | CAS号328-70-1 1,3-双(三氟甲基)-5-溴苯 | CAS号3770-82-9 1,3-联苯甲酰基苯 | CAS号328-72-3 3,5-双三氟甲基氯苯 | CAS号3971-31-1 1,3-环己二甲酸 | CAS号14334-36-2 1,3-Benzenedica... | CAS号4355-31-1 顺式-1,3-环己烷二甲酸酐 | CAS号1459-93-4 间苯二甲酸二甲酯 | CAS号51760-21-5 5-溴间苯二甲酸二甲酯 | CAS号379711-35-0 2,5-Dibromoisop... | CAS号379711-34-9 4,5-dibromoisop...

间苯二甲腈置于chaetomium Globosum (Q2Gr86),水体系中,化学反应生成间苯二甲酸
参考文献:A High-Throughput Screening Method For Determining The Substrate Scope Of Nitrilases
标题:A High-Throughput Screening Method For Determining The Substrate Scope Of Nitrilases
摘要:我们已经开发了一种显色试剂来显示腈酶活性,并展示了其在23种酶的细胞提取物中的应用.
Doi:10.1039/c4Cc06021K

专利信息

专利号:US-2019047933-A1
优先权日:2016-03-15
标 题:Process for the synthesis of (2e, 4e, 6z, 8e)-8-(3,4-dihydronaphthalen-1(2h)-ylidene)-3,7-dimethylocta-2, 4, 6-trienoic acid
发明人：ABEL ULRICH; RÉPÃ?SI JÓZSEF; Szabó András; SZÃœCSNÉ CSERÉPI STEFÃ?NIA; Bor Ã?dám
权利人:ABEL ULRICH; REPASI JOZSEF; SZABO ANDRAS; SZUECSNE CSEREPI STEFANIA; BOR ADAM; BRICKELL BIOTECH INC
摘要:This invention relates to a novel method for the synthesis of (2E,4E,6Z,8E)-8-(3,4-dihydronaphthalen-1(2H)-ylidene)-3,7-dimethylocta-2,4,6-trienoic acid. In particular, the invention relates to several improvements in several individual steps of the multi-step synthesis scheme

专利号:WO-9961509-B1
优先权日:1998-05-21
标题:Synthesis of semi-crystalline polyphthalamides through reactive extrusion of hexamethylene terephthalamide oligomer with lower melting, semi-crystalline or amorphous polyamides
发明人：LEBOEUF CHRISTIAN; HARBOURNE DAVID ALAN
权利人:LEBOEUF CHRISTIAN; HARBOURNE DAVID ALAN
摘要:This invention relates to the synthesis of semi-crystalline polyphthalamides (i.e. containing monomeric units of terephthalic acid and hexamethylene diamine) through reactive extrusion of hexamethylene terephthalamide oligomer, or the oligomer of another 6T-rich copolymer, with lower melting semi-crystalline or amorphous polyamides. This process is particularly useful since it is centered around the use of stirred autoclaves for the synthesis of the 6T oligomer and the semi-crystalline or amorphous polyamides which are subsequently combined in a twin screw extruder equipped for devolatilization of water of reaction. It can also be used for the modification of existing semi-crystalline or amorphous polyamides (not necessarily phthalamides) with low levels of 6T.

专利号:US-9000209-B2
优先权日:2011-07-22
标题:Method of regioselective synthesis of substituted benzoates
发明人：KRAUS GEORGE A
权利人:KRAUS GEORGE A; UNIV IOWA STATE RES FOUND INC
摘要:A method of synthesis of para-substituted benzoate esters and acids is provided, wherein the para-substituted regioisomer is obtained substantially free of the meta-substituted impurity, the method comprising contacting a coumalate ester or acid and an unactivated alkene at elevated temperature in the presence of a metal oxidation catalyst and an oxidant. The metal oxidation catalyst can be palladium, such as palladium on carbon, and the oxidant can be the oxygen gas in ambient air. The reaction can be carried out without solvent or in high boiling hydrocarbon solvents such as mesitylene. When the unactivated alkene is a monosubstituted alkene, yields of at least about 50 or 60% of para-substituted ester and acid products, respectively, are obtained, substantially free of the regioisomeric meta-substituted impurity.

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-4835247-A
优先权日:1988-08-08
标 题:Process for the synthesis of a copolyester adhesive resin
发明人：WILSON JOHN R; ROUSEK MARIAN M; MASSEY FRED L
权利人:GOODYEAR TIRE & RUBBER
摘要:Isophthalic acid is commonly utilized as a comonomer in the preparation of copolyester resins which are utilized as solution adhesives. Unfortunately, solutions of such resins frequently become hazy due to the presence of cyclic oligomers. This invention is based upon the unexpected discovery that the presence of protonic acids during the synthesis of the copolyester resins containing isophthalic acid utilizing conventional metallic catalysts results in solutions of the resins in organic solvents being virtually haze free. The subject invention more specifically reveals a process for synthesizing a polyethylene terephthalate/isophthalate/azelate copolyester resin which is particularly useful as a solution adhesive resin, comprising reacting ethylene glycol with a diacid component which is comprised of (a) from about 25 to about 45 mole percent terephthalic acid, (b) from about 10 to about 30 to about 55 mole percent azelaic acid based upon the diacid component; in the presence of at least one metallic catalyst selected from the group consisting of antimony compounds, titanium compounds; manganese compounds, and germanium compounds and in the presence of at least one protonic acid having a pKa of less than about 2.5; wherein the amount of metallic catalyst present is within the rang eof about 130 ppm to about 1500 ppm and wherein the amount of protonic acid present is within the range of about 50 ppm to about 500 ppm, with said amounts being based upon the weight of the copolyester resin produced.

专利号:US-4921929-A
优先权日:1988-08-08
标 题:Process for the synthesis of a copolyester adhesive resin
发明人：WILSON JOHN R; ROUSEK MARIAN M; MASSEY FRED L
权利人:GOODYEAR TIRE & RUBBER
摘要:Isophthalic acid is commonly utilized as a comonomer in the preparation of copolyester resins which are utilized as solution adhesives. Unfortunately, solutions of such resins frequently become hazy due to the presence of cyclic oligomers. This invention is based upon the unexpected discovery that the presence of protonic acids during the synthesis of the copolyester resins containing isophthalic acid utilizing conventional metallic catalysts results in solutions of the resins in organic solvents being virtually haze free. The subject invention more specifically reveals a process for synthesizing a polyethylene terephthalate/isophthalate/azelate copolyester resin which is particularly useful as a solution adhesive resin, comprising reacting ethylene glycol with a diacid component which is comprised of (a) from about 25 to about 45 mole percent terephthalic acid, (b) from about 10 to about 30 mole percent isophthalic acid, and (c) from about 30 to about 55 mole percent azelaic acid based upon the diacid component; in the presence of at least one metallic catalyst selected from the group consisting of antimony compounds, titanium compounds; manganese compounds, and germanium compounds and in the presence of at least one protonic acid having a pKa of less than about 2.5; wherein the amount of metallic catalyst present is within the range of about 130 ppm to about 1500 ppm and wherein the amount of protonic acid present is within the range of about 50 ppm to about 500 ppm, with said amounts being based upon the weight of the copolyester resin produced.