21354-48-3

Upstream product

• 156136-65-1 N-(1H-benzotriazol-1-ylmethyl)-2,5-dimethylaniline 
• 106-42-3 para-xylene 
• 25370-97-2 O-(p-toluenesulfonyl)-N-methylhydroxylamine 
• 67-56-1 methanol 
• 95-78-3 2,5-Dimethylaniline 
• 10113-40-3 N-(2,5-dimethylphenyl)formamide 
• 74-88-4 methyl iodide 
• 46727-16-6 N-benzylidene-2,5-dimethylaniline 
• 77-78-1 dimethyl sulfate 

Downstream Products

• 1240693-66-6 C₂₀H₁₆F₃N₃O 
• 55239-99-1 (2,5-dimethylphenyl)(methyl)carbamic chloride 
• 1051897-17-6 N'-(2,5-dimethylphenyl)-N-(3,5-dimorpholin-4-ylphenyl)-N'-methyl-pyrimidine-2,4-diamine 
• 1026534-91-7 1,6-Dimethyl-2-thioxo-2,3-dihydro-1H-indole-3-carboxylic acid phenylamide 
• 156136-67-3 1,3-dihydro-1,6-dimethyl-2H-indole-2-thione 
• 51786-43-7 N-(2,5-dimethylphenyl)-N-methylnitrous amide 

Relevant academic research and scientific papers

A Metal-Free Direct Arene C?H Amination

The synthesis of aryl amines via the formation of a C?N bond is an essential tool for the preparation of functional materials, active pharmaceutical ingredients and bioactive products. Usually, this chemical connection is only possible by transition metal-catalyzed reactions, photochemistry or electrochemistry. Here, we report a metal-free arene C?H amination using hydroxylamine derivatives under benign conditions. A charge transfer interaction between the aminating reagents TsONHR and the arene substrates enables the chemoselective amination of the arene, even in the presence of various functional groups. Oxygen was crucial for an effective conversion and its accelerating role for the electron transfer step was proven experimentally. In addition, this was rationalized by a theoretical study which indicated the involvement of a dioxygen-bridged complex with a “Sandwich-like” arrangement of the aromatic starting materials and the aminating agents at the dioxygen molecule. (Figure presented.).

Stereospecific copper-catalyzed domino ring opening and sp3 C-H functionalization of activated aziridines with N-alkylanilines

Copper efficiently catalyzed nucleophilic ring opening, sp3 C-H functionalization, and C-N bond formation in the presence of tert-butyl hydroperoxide to afford functionalized imidazolidines starting from N-sulfonylaziridines and Nalkylanilines. The products were obtained in high optical purities (95 → 99% ee) with excellent functional group tolerance.

Improved and General Manganese-Catalyzed N-Methylation of Aromatic Amines Using Methanol

A novel lutidine-based manganese PNP-pincer complex has been synthesized for the selective N-methylation of aromatic amines with methanol. Using borrowing hydrogen methodology, a selection of differently functionalized aniline derivatives is selectively methylated in good yields.

Synthesis and cytotoxicity studies of quinoline-3-carbonitrile derivatives

A series of quinoline-3-carbonitrile derivatives were designed and synthesized. Their cytotoxicity in vitro against four cancer cell lines (A549, HT-29, MDA-MB-231 and SMMC-7721) were evaluated by standard MTT assay. The pharmacological results showed that most of the prepared compounds displayed excellent selective cytotoxicity toward SMMC-7721 cell line. Among them, compounds 7c, 7e, 11b, 11f and 11g were more active than Gefitinb against SMMC-7721 cell line.

Tyrosine kinase inhibitors. 3. Structure-activity relationships for inhibition of protein tyrosine kinases by nuclear-substituted derivatives of 2,2'-dithiobis(1-methyl-N-phenyl-1H-indole-3-carboxamide)

A series of indole-substituted 2,2'-dithiobis(1-methyl-N-phenyl-1H- indole-3-carboxamides) were prepared and evaluated for their ability to inhibit the tyrosine kinase activity of both the epidermal growth factor receptor (EGFR) and the nonreceptor pp60(v-src) tyrosine kinase. The compounds were synthesized by conversion of appropriate 1-methyloxindoles to 1-methyl-2-indolinethiones with P2S5 followed by subsequent reaction with NaH and phenyl isocyanate and oxidative dimerization of the resulting 2,3- dihydro-N-phenyl-2-thioxo-1H-indole-3-carboxamides. The parent compound and many of the substituted analogues were moderately potent inhibitors of both kinase enzymes, but no clear relationships were seen between substitution on the indole ring and inhibitory activity. While 4-substituted compounds were generally inactive, 5-substituted derivatives with electron-withdrawing groups showed inhibitory activity. However, none of the substituted compounds showed significantly better activity than the unsubstituted parent compound. There was generally a good correlation between activity against the EGFR and pp60(v-src) kinases, but several compounds did show some specificity (>20- fold) of inhibition; 5-Cl and 5-Br derivatives preferentially inhibited pp60(v-src), while the 5-CF3 compound preferentially inhibited EGFR. Selected compounds from the series were found to inhibit the growth of Swiss 3T3 fibroblasts with IC50s in the range 2-25 μM, the most active being 4- substituted derivatives. The compounds inhibited bFGF-mediated protein tyrosine phosphorylation in intact cells more effectively than EGFR- or PDGF- mediated phosphorylation.

LITHIATION ROUTES TO OXINDOLES AND 2-INDOLINETHIONES: PRECURSORS TO 2,2'-DITHIOBISINDOLES WITH TYROSINE KINASE INHIBITORY PROPERTIES

N-Substituted oxindoles and 2-indolinethiones can be prepared by lithiation of carboxyl protected N,2-dimethylanilines followed by quenching with CO2 or CS2 respectively. 2-Indolinethione derivatives are also available via demethylation of 2-methylthioindoles, which are prepared by lithiation of N-substituted indoles and treatment with dimethyl disulfide.