CAS: 528-44-9; 1,2,4-Benzenetricarboxylic Acid

相似化合物

331714-59-1 313228-48-7 2459-10-1

上下游产品

2,4-dimethylbenzaldehyde methyl coumalate acetylenedicarboxylic acid diethyl ester 1,2,4-Trimethylbenzenebenzene-1,2,4-tricarboxylic acid trimethyl ester 4-methoxycarbonylphthalic anhydride benzene-1,2,4-tricarboxylic acid-4-methyl ester benzene-1,2,4-tricarboxylic acid-1,4-dimethyl ester

3,4-二甲基苯甲酸置于n-羟基邻苯二甲酰亚胺,氧气,Cobalt(II) Acetate,Manganese (II) Acetate Tetrahydrate体系中,用 溶剂黄146 作为反应溶剂,120.0 °C,101.33 Kpa 条件下,反应 14.0H,以90%的收率获得产物1,2,4-苯三甲酸
参考文献:频哪醇和马来酸二乙酯可持续生产均苯四酸
标题:频哪醇和马来酸二乙酯可持续生产均苯四酸
摘要:开发了一种空前的,可持续的途径,可合成生物衍生的频哪醇和马来酸二乙酯与聚酰亚胺的单体均苯四酸(pma).
DOI:10.1039/c6Gc03576K

专利信息

专利号:US-7329515-B2
优先权日:2003-04-21
标题 :Solid support for the synthesis of 3′-amino oligonucleotides
发明人：LEUCK MICHAEL; WOLTER ANDREAS
权利人:SIGMA ALDRICH CO
摘要:The present invention discloses novel methods and solid supports for the synthesis of 3′-amino oligonucleotides. The novel supports are based on an unsubstituted or ring-substituted hydroxymethylbenzoyl linker element wherein the hydroxymethyl group is esterified to a solid phase bound carboxylic acid and the carbonyl group is linked to an amino alcohol as an amide. Oligonucleotides are conveniently synthesized on the novel supports with no modifications in the standard phosphoramidite synthesis scheme. The ester function of the support is cleaved under the alkaline deprotection conditions for oligonucleotides to provide a free hydroxymethyl group that aids in the release of the 3′-amino oligonucleotide products with a free amino group through neighbor group participation. The free amino group of the oligonucleotides is available for further conjugation reactions to haptens, reporter groups, surfaces or other small molecules or biomolecules. The methods provided are particularly mild, do not require any modifications in standard protocols for the synthesis and deprotection of oligonucleotides, provide the 3′-amino oligonucleotides free of side products and do not introduce chiral centers to the oligonucleotides.

专利号:US-4895922-A
优先权日:1988-05-05
标 题 :Low temperature synthesis of polyesteramides
发明人：OGATA NAOYA
权利人:GOODYEAR TIRE & RUBBER
摘要:This invention disclosed a process for the synthesis of polyesteramides. By utilizing the phosphorus containing catalyst systems of the present invention, such polyesteramides can be synthesized at relatively low temperatures. The present invention specifically discloses a process for the synthesis of a polyesteramide which comprises polymerizing at least one diamine, at least one diol, and at least one dicarboxylic acid in the presence of (1) at least one acid acceptor; (2) at least one halogenated organic compound; and (3) at least one phosphorus containing compound selected from the group consisting of (a) triphenylphosphine, (b) triphenylphosphine oxide, (c) triphenylphosphine sulfide, (d) polymeric agents having pendant diphenylphosphine groups, (e) silicon-phosphorus compositions which contain at least one divalent oxygen atom which is bonded directly to a tetravalent silicon atom and a trivalent or pentavalent phosphorus atom; (f) compounds with the structural formula (C 6 H 5 ) 3 P=N-R, wherein R is a hydrogen atom or an alkyl group containing from 1 to 10 carbon atoms; and (g) compounds with the structural formula (C 6 H 5 )PR 1 R 2 wherein R 1 and R 2 can be the same or different, wherein R 1 is selected from the group consisting of alkyl groups containing from 1 to 10 carbon atoms and phenyl groups, and wherein R 2 is an alkyl group containing from 1 to 10 carbon atoms.

专利号:US-2004249114-A1
优先权日:2001-02-06
标题 :Methods of synthesis of polysuccinimide or polyaspartate by end capping polymerization
发明人：SWIFT GRAHAM; REDLICH GEORGE H; WEHBY JOHN NOLAN
摘要:Disclosed are methods of synthesis of homopolymers or copolymers containing succinimide or aspartate moieties formed in the presence of an end capping initiator. Also disclosed are methods of isolating, compounding, stabilizing and processing the homopolymers and copolymers.

专利号:US-2006211843-A1
优先权日:2001-02-06
标题:Methods of synthesis of poly(succinimide-aspartate) polysuccinimide or polyaspartate by end capping polymerization
发明人：SWIFT GRAHAM; REDLICH GEORGE H
权利人:SWIFT GRAHAM; REDLICH GEORGE H
摘要:Disclosed are methods of synthesis of homopolymers or copolymers containing succinimide or aspartate moieties formed in the presence of an end capping initiator. Also disclosed are methods of isolating, compounding, stabilizing and processing the homopolymers and copolymers.

专利号:US-7319155-B2
优先权日:2004-05-14
标题:7,7-disubstituted (5H,9H)-6,8-dioxabenzocycloheptene compounds useful in the synthesis of non-steroidal analogues of vitamin D
发明人：TERRANOVA ERIC; PASCAL JEAN-CLAUDE
权利人:GALDERMA RES & DEV
摘要:Novel 7,7-disubstituted (5H,9H)-6,8-dioxabenzocycloheptene compounds having the structural formula (I): n nare useful intermediates in the synthesis of non-steroidal derivatives of vitamin D.

专利号:US-7470370-B2
优先权日:2003-06-05
标 题 :Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration
发明人：PARKER KENNY RANDOLPH; LIN ROBERT
权利人:EASTMAN CHEM CO
摘要:A process is disclosed that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic. More particularly, the process involves recovery of a metal catalyst from an oxidizer purge stream through the use of a pressure filter, the combining of water with a mother liquor to recover the metal catalyst and then subjecting an aqueous mixture so formed to a single stage extraction with an extraction solvent to produce an extract stream comprising organic impurities and a raffinate stream comprising the metal catalyst.