66311-46-4

Upstream product

• 726-10-3 N-(4'-nitrophenyl)-2-methylaniline 
• 586-78-7 para-nitrophenyl bromide 
• 95-53-4 o-toluidine 
• 23197-53-7 4-[(2-methylphenyl)amino]-phenol 
• 123-31-9 hydroquinone 
• 7647-01-0 hydrogenchloride 
• 6527-81-7 5-amino-2-o-toluidino-benzenesulfonic acid 
• 7664-93-9 sulfuric acid 

Downstream Products

• 15017-02-4 N,N'-bis(o-methylphenyl)-p-phenylenediamine 
• 27173-16-6 N-phenyl-N'-tolyl-p-phenylenediamine 
• 74-31-7 N,N'-diphenyl-1,4-phenylenediamine 

Relevant academic research and scientific papers

Substituted anilino-benzothiazole-2-thioketone compound as well as preparation method and application thereof

The invention discloses a substituted anilino-benzothiazole-2-thioketone compound and a preparation method thereof. In addition, the invention also relates to an application of the compound in rubberproducts. The substituted anilino-benzothiazole-2-thioketone compound disclosed by the invention not only can promote rubber vulcanization, but also can prolong the service life of the rubber products.

One-pot propagation of (Hetero)Arylamines: Modular synthesis of diverse Amino-di(hetero)arylamines

Formal propagation of (hetero)arylamine is achieved via a one-pot Buchwald–Hartwig C–N cross-coupling and nitro reduction sequence, enabling a rapid modular synthesis of diverse amino-di(hetero)arylamines from (hetero)arylamines and halogenated nitrobenzenes. Various functionalized aromatic amines with different electronic and steric environments can be efficiently prolongated to formally incorporate another arylamino fragments. This approach has been successfully applied in the synthesis of more than forty amino-di(hetero)arylamines. The applicability of this method has also been demonstrated in the synthesis of oligoanilines and the tyrosine-kinase inhibitor Imatinib.

Process for the preparation of 4-amino-diphenylamines

A process for the preparation of a 4-aminodiphenyl amino derivative which comprises: (a) contacting a hydroxybenzene of the formula STR1 wherein R is hydroxyl or amino with an aniline compound of the formula STR2 wherein R1 represents hydrogen or an alkyl radical in the presence of a γ-aluminum oxide containing catalyst; and (b) contacting the product from step (a) with ammonia in the presence of the same γ-aluminum oxide containing catalyst used in step (a).

Process for the preparation of Schiff's bases by the reaction of aromatic amines with ketones

Schiff's bases of the formula STR1 are obtained by reacting an amine H2 N--R3 with a ketone STR2 in presence of calcium hydrogen phosphate, apatite, aluminum oxide, aluminium hydroxide and/or Fuller's Earth and subsequent removing the water by azeotronic distillation. The products are intermediates for the preparation of phenylene diamines which may be used as age resistors for rubber.