6183-35-3

Usage

Uses

Used in Synthetic Fiber Production:
1,2,4,5-Benzenetetracarboxamide is used as a cross-linking agent in the manufacturing of synthetic fibers, particularly nylon. Its properties contribute to the strength and durability of the fibers.
Used in Flame Retardant Applications:
BTCA is utilized as a flame retardant in textiles and plastics, enhancing their fire resistance and safety.
Used in Coating and Adhesive Industries:
1,2,4,5-Benzenetetracarboxamide is used as a coating and adhesive in various industrial applications, providing strong bonding and durable surfaces.
Used in Metalworking Fluids:
BTCA is employed as a corrosion inhibitor in metalworking fluids, protecting metal surfaces from corrosion and extending the life of the equipment.
However, there are concerns about the potential environmental and human health impacts of 1,2,4,5-Benzenetetracarboxamide, particularly due to its persistence and potential for bioaccumulation.

InChI:InChI=1/C10H10N4O4/c11-7(15)3-1-4(8(12)16)6(10(14)18)2-5(3)9(13)17/h1-2H,(H2,11,15)(H2,12,16)(H2,13,17)(H2,14,18)

Upstream product

• 89-05-4 1,2,4,5-benzenetetracarboxylic acid 
• 57-13-6 urea 
• 89-32-7 Pyromellitic dianhydride 
• 2550-73-4 pyrrolo[3,4-f]isoindole-1,3,5,7-tetraone 

Downstream Products

• 712-74-3 1,2,4,5-tetracyanobenzene 
• 65975-34-0 4,5-dicyanophthalimide 
• 2550-73-4 pyrrolo[3,4-f]isoindole-1,3,5,7-tetraone 
• 101-81-5 Diphenylmethane 
• 632-50-8 1,1,2,2-tetraphenylethane 
• 147119-43-5 5,6-dicyano-3-hydroxy-3-(diphenylmethyl)-2-methylisoindol-1-one 
• 139071-46-8 2-(2,4,5-Tricyanophenyl)-1,3-dioxolane 

Relevant academic research and scientific papers

Corresponding amine nitrile and method of manufacturing thereof

The invention relates to a preparation method of nitrile. Compared with the prior art, the preparation method has the characteristics of obvious reduction of the usage amount of ammonia sources, low environmental pressure, low energy consumption, low production cost, high purity and yields of nitrile products, and the like, and can be used for obtaining nitrile with a more complex structure. The invention also relates to a method for preparing corresponding amine with nitrile.

Corresponding amine nitrile and method of manufacturing thereof

The present invention relates to a nitrile manufacturing method, which has characteristics of significantly-reduced ammonia source consumption, low environmental pressure, low energy consumption, low production cost, high nitrile purity, high nitrile yield and the like compared with the method in the prior art, wherein nitrile having a complicated structure can be obtained through the method. The present invention further relates to a method for producing a corresponding amine from the nitrile.

Corresponding amine nitrile and method of manufacturing thereof (by machine translation)

The invention relates to a method of manufacturing one kind of nitrile, compared with the prior art, has significantly reduced the amount of ammonia, the environmental pressure of the small, low energy consumption, low production cost, nitrile product purity and yield and the like, and can obtain more complex structure of the nitriles. The invention also relates to the corresponding amine by the nitrile manufacture method. (by machine translation)

Photochemical Reaction of Phthalimides and Dicyanophthalimides with Benzylic Donors

Irradiation of phthalimides in the presence of benzylic donors PhCRHX (R = H, Ph, X = H, SiMe3, CHPh2, proceeds via electron transfer and radical cation cleavage, resulting in benzylation at the carboximide moiety to yield 3-benzyl-3-hydroxyisoindol-3-ones.With 4,5-dicyanophthalimides substitution of benzyl for a cyano group is a competitive, and in some cases predominating, pathway.A rationalization is proposed on the basis of the in cage vs out of cage radical cation cleavage.In the first mechanism, the radical anion of the dicyanophthalimide, where spin and charge are differently located, probably assists the radical cation fragmentation.

Octaalkyl Esters of 2,3,9,10,16,17,23,24-(29H,31H)-Phthalocyanineoctacarboxylic Acid: A New Homologous Series of Discotis Liquid Crystals

The synthesis of a homologous series of octaalkoxycarbonyl-substitued metal-free phthalocyanines (Pc) is described.The mesomorphic properties of these new materials were studied by differential scanning calorimetry (DSC), optical microscopy and X-ray investigations.All compounds show a discotic mesophase in an extremely large temperature interval including room temperature.X-ray diffraction patterns of the mesophases confirm that all compounds form a hexagonal columnar mesophase of the type Dho.

Electron Transfer Photoinduced Cleavage of Acetals. A Mild Preparation of Alkyl Radicals

Electron transfer from 2-alkyl- and 2,2-dialkyldioxolanes as well as from open-chain ketals to singlet excited benzene-1,2,4,5-tetracarbonitrile (TCNB) is followed by fragmentation of the donors radical cation to yield alkyl radicals and dialkoxy carbocations.The first species are trapped by TCNB to yield alkylbenzenetricarbonitriles (substitution of a second cyano group can be obtained sequentially) and in a minor path are reduced to alkanes, while the latter ones react with nucleophiles to give ortho acid derivatives.In view of the results of radical clock experiments, it is assumed that part of the process is a concerted (radical cation cleavage-addition to the aromatic) reaction, while another part involves the free-radical cation.On the other hand, intersystem crossing from the singlet radical ion pair to the triplet manifold causes cleavage of the acetal to the corresponding carbonyl derivative.This reaction offers a mild method for the preparation of alkyl radicals via C-C bonds cleavage.

AMMONOLYSIS OF CYCLIC IMIDES OF AROMATIC ACIDS

In cyclic imides of aromatic di-and tetracarboxylic acids ammonolysis with the opening of the ring goes readily in water, but it does not go in anhydrous aprotic solvents.Quantum-chemical calculations of model compounds by the MINDO/3 method suggest the possibility of activation in an aqueous-alkaline medium as a result of the tautomeric transformation of the imide into the imidol, which has higher electrophilic reactivity.Here the transfer of a proton goes as a two-stage process on account of the successive participation of anions and molecules of water in the reaction.