7154-31-6

Basic information

• Product Name: N,N'-diphenylterephthaldiamide
• Synonyms: N,N'-diphenylterephthaldiamide;Terephthalanilide;N,N'-Diphenyl-1,4-benzenedicarboxamide;N,N'-Diphenylterephthalamide;1,4-Benzenedicarboxamide, N,N'-diphenyl-;Nsc73489;Terephthalic acid dianilide;1,4-Benzenedicarboxamide,N1,N4-Dipheny
• CAS NO: 7154-31-6
• Molecular Formula: C₂₀H₁₆N₂O₂
• Molecular Weight: 316.35324
• EINECS: 230-505-3
• Mol File: 7154-31-6.mol
• Article Data: 7

Chemical Properties

• Appearance: /
• CAS DataBase Reference: N,N'-diphenylterephthaldiamide(CAS DataBase Reference)
• NIST Chemistry Reference: N,N'-diphenylterephthaldiamide(7154-31-6)
• EPA Substance Registry System: N,N'-diphenylterephthaldiamide(7154-31-6)

Safety Data

• Hazardous Substances Data: 7154-31-6(Hazardous Substances Data)

Usage

General Description

N,N'-diphenylterephthaldiamide is a chemical compound commonly used as a co-monomer in the production of high-performance polyamide and aramid fibers. It is a diamide derivative of terephthalic acid and is known for its high thermal stability and flame retardant properties. With its rigid aromatic structure and strong intermolecular interactions, N,N'-diphenylterephthaldiamide contributes to the exceptional strength, toughness, and heat resistance of the polymers in which it is incorporated. This makes it a key ingredient in the manufacturing of industrial fabrics, composites, and protective equipment, such as bulletproof vests and fire-resistant clothing. Additionally, its high melting point and resistance to various chemicals make it a valuable component in the production of engineering plastics and specialty resins.

Upstream product

• 62-53-3 aniline 
• 100-20-9 terephthaloyl chloride 
• 142-04-1 aniline hydrochloride 
• 542-16-5 dianilunium sulphate 
• 100-21-0 terephthalic acid 
• 6668-01-5 Terephthalsaeure-bis-(ethoxycarbonyl)-ester 
• 6051-65-6 Terephthalsaeureanilidchlorid 
• 15625-85-1 1,4-bis(1-imidazoyl)benzene 
• 18440-21-6 2,4-bis(anilino)-1,3-diphenyl-1,3,2,4-diazadiphosphetidine 

Downstream Products

• 66012-76-8 1,1'-diphenyl-1H,1'H-5,5'-p-phenylene-bis-tetrazole 
• 4377-01-9 C₆H₄(CNC₆H₅Cl)2 

Relevant articles and documents

Irreversible Amide-Linked Covalent Organic Framework for Selective and Ultrafast Gold Recovery

Design of stable adsorbents for selective gold recovery with large capacity and fast adsorption kinetics is of great challenge, but significant for the economy and the environment. Herein, we show the design and preparation of an irreversible amide-linked covalent organic framework (COF) JNU-1 via a building block exchange strategy for efficient recovery of gold. JNU-1 was synthesized through the exchange of 4,4′-biphenyldicarboxaldehyde (BA) in mother COF TzBA consisting of 4,4′,4′′-(1,3,5-triazine-2,4,6-triyl)trianiline (Tz) and BA with terephthaloyl chloride. The irreversible amide linked JNU-1 gave good stability, unprecedented fast kinetics, excellent selectivity and outstanding adsorption capacity for gold recovery. X-ray photoelectron spectroscopy along with thermodynamic study and quantum mechanics calculation reveals that the excellent performance of JNU-1 for gold recovery results from the formation of hydrogen bonds C(N)?H???Cl and coordinate interaction of O and Au. The rational design of irreversible bonds as both inherent linkage and functional groups in COFs is a promising way to prepare stable COFs for diverse applications.

Probing the intermolecular interactions of aromatic amides containing N-heterocycles and triptycene

A series of aromatic amides incorporated with N-heterocycles or triptycene units are synthesized and studied for probing the effects of such chemical modifications on the intermolecular interactions. Single crystals of a number of heterocyclic amides and the triptycene-containing amide were obtained. Crystal structures, hydrogen bonds, lattice energy, solubility, and melting points were compared amongst relevant molecules. Suitably positioned nitrogen atoms from heterocycles are found to form intramolecular H-bonds with amide NHs at the expense of weakening or disrupting the intermolecular H-bonds. The effects of such H-bonding changes on solubility and melting point are nonetheless limited. Uniquely, the triptycene unit effectively improves the solubility of the amide without tempering the thermal resistance of the molecule. This journal is the Partner Organisations 2014.

COMPOUNDS

The present invention relates to compounds of formula (I), or pharmaceutically acceptable salts thereof, wherein X is selected from (II) and (III), Y is selected from SO2NH, CONH, CH=N, CH2NH and CH=CH; R1-5 are each independently selected from H, OH, OR6, CO2H, C02R7, NO2, CN CONR8R9, CONHR10, CO2(CH2)nCO2R11, CO2(CH2)mO(CO)R12, CO2CHR13COR14, CONH(CH2)pCO2R15, CONH(CH2)qO(CO)R16, CONHCHRI7COR18; R6-18 are each independently hydrocarbyl; n, m, p and q are each independently 1, 2, 3 or 4; with the proviso that when X is phenyl, Y is CH=CH, R3 is OH and R1, R4 and R5 are H, R2 is other than COON. Further aspects of the invention relate to the use of such compounds in the preparation of a medicament for the treatment or prevention of transmissible spongiform encephalopathies (TSEs), and pharmaceutical compositions comprising the same.