36978-37-7

Basic information

• Product Name: 3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID
• Synonyms: 1,1'-Biphenyl-3,3',4,4'-tetracarboxylic acid tetramethyl ester;3,3',4,4'-Biphenyltetracarboxylic acid tetramethyl ester;Biphenyl-3,3',4,4'-tetracarboxylic acid tetramethyl ester;Biphenyl-3,3',4,4'-tetrakis(carboxylic acid methyl) ester;Tetramethyl 3,3',4,4'-biphenyltetracarboxylate
• CAS NO: 36978-37-7
• Molecular Formula: C₂₀H₁₈O₈
• Molecular Weight: 386.35
• Mol File: 36978-37-7.mol
• Article Data: 10

Chemical Properties

• Melting Point: 93-101 ºC
• Appearance: /
• Density: 1.261
• CAS DataBase Reference: 3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID(36978-37-7)
• EPA Substance Registry System: 3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID(36978-37-7)

Safety Data

• Hazardous Substances Data: 36978-37-7(Hazardous Substances Data)

Usage

General Description

3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID is a chemical compound with the molecular formula C20H12O8. It is a derivative of biphenyl in which four carboxylic acid groups are attached to the phenyl rings, making it a tetracarboxylic acid. 3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID is commonly used in the synthesis of coordination polymers and metal-organic frameworks for various applications in materials science and catalysis. It is also used as a building block for the preparation of functionalized biphenyl derivatives, which have potential applications in pharmaceuticals, agrochemicals, and other industrial uses. Additionally, 3,3',4,4'-BIPHENYL TETRACARBOXYLIC ACID has been studied for its potential in organic electronics and as a component in the production of semiconducting polymers and organic light-emitting diodes.

Upstream product

• 87639-57-4 4-bromophthalic Acid Dimethyl Ester 
• 42899-83-2 3-chloro-N-phenylphthalimide 
• 58138-38-8 dimethyl 4-chlorophthalate 
• 66653-93-8 N-methyl-3-chlorophthalimide 
• 102928-38-1 dimethyl 3-iodophthalate 
• 67-56-1 methanol 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 131-11-3 phthalic acid dimethyl ester 

Downstream Products

• 2420-87-3 3,3',4,4'-biphenyltetracarboxylic anhydride 
• 22803-05-0 4,4'-biphthalic acid 

Relevant articles and documents

Method for preparing and separating and purifying biphenyl derivatives through catalytic coupling

The invention discloses a method for preparing and separating and purifying biphenyl derivatives by catalytic coupling, which mainly comprises the following steps: taking zinc as a reducing agent, carrying out cross-coupling to generate 3 - and 4 - biphenyldianhydrides in an aprotic solvent system and carrying out cross-coupling reaction under the ultrasonic-assisted catalysis to separate the prepared terphenyl derivatives. 3 3 ’ - 4 ’ - 4 ’ - The invention discloses a method for 3 preparing and 4 separating and purifying biphenyl derivatives by using zinc as a reducing agent 3 4 ’ . 3,3 ’ - And 4, 4 ’ - biphenyl derivatives, which are hydrolyzed and dehydrated to obtain three biphenyldianhydride isomer pure products respectively.

Mechanistic Insights on Pd/Cu-Catalyzed Dehydrogenative Coupling of Dimethyl Phthalate

Despite its industrial importance, very limited mechanistic information on the dehydrogenative coupling of dimethyl phthalate has been reported. Herein we report the detailed mechanism for dehydrogenative coupling of dimethyl phthalate catalyzed by [Pd(OAc)2]/[Cu(OAc)2]/1,10-phenanthroline·H2O (phen·H2O). The solution-phase analysis of the catalytic system by XANES shows the active species to be Pd(II), and EXAFS supports the formation of an (acetato)(dimethyl phthalyl)(phen)palladium(II) complex from [Pd(OAc)2]. A formation pathway of tetramethyl 3,3′,4,4′-biphenyltetracarboxylate via disproportionation of independently prepared [Pd(OAc){C6H3(CO2Me)2-3,4}(phen)] is observed with regeneration of [Pd(OAc)2(phen)].

Preparation method for biphenyltetracarboxylic dianhydride mixture

The invention relates to a preparation method for a biphenyltetracarboxylic dianhydride mixture. The preparation method comprises the following steps: with phthalic acid as a starting raw material, carrying out an electrophilic substitution reaction so as to produce a phthalic acid derivative; then subjecting the derivative to esterification so as to produce phthalate; further catalyzing phthalate and carrying out a coupling reaction so as to produce a biphenyl tetraformate mixture; and finally, successively carrying out saponification and acidification so as to produce the product biphenyltetracarboxylic dianhydride mixture. The method provided by the invention uses cheap and easily phthalic acid as the starting raw material and is a novel low-cost easily-operatable environment-friendly production method for biphenyltetracarboxylic dianhydride; moreover, isomeric compounds of all the biphenyltetracarboxylic dianhydride are synthesized at one time in the invention, so efficiency is improved and the cost is reduced.