Category: nitriles-buliding-blocks

《Copper-Catalyzed Tandem Reactions of 2-Amine-[1,3,5]triazines with Nitriles》 was written by Zhang, Li-Yu; Zhang, Chen; Wang, Tao; Shi, Yu-Long; Ban, Meng-Tao; Cui, Dong-Mei. Recommanded Product: 1194-02-1This research focused ontriazolotriazinamine triazinylbenzamide preparation; copper catalyst oxidative aerobic condensation cyclocondensation reaction triazinamine; tandem reaction triazinamine aryl nitrile acetonitrile copper catalyst; triazinamine oxidative cyclocondensation aryl nitrile copper catalyst; arylacetonitrile oxidative condensation triazinamine arylamine copper catalyst. The article conveys some information:

In the presence of CuCl and ZnCl2, [1,3,5]triazinamines I (R = Me2N, Et2N, 1-piperidinyl, 4-morpholinyl, 1-pyrrolidinyl; R1 = R2 = H) underwent aerobic oxidative cyclocondensation reactions with aryl nitriles R3CN (R3 = Ph, 4-MeC6H4, 3-MeC6H4, 4-MeOC6H4, 4-FC6H4, 4-ClC6H4, 3-ClC6H4, 4-BrC6H4, 3,5-Cl2C6H3, 4-F3CC6H4, 4-NCC6H4, 2-thienyl, 4-pyridinyl) to yield [1,2,4]triazolo[1,5-a][1,3,5]triazinamines II (R = Me2N, Et2N, 1-piperidinyl, 4-morpholinyl, 1-pyrrolidinyl; R2 = H; R3 = Ph, 4-MeC6H4, 3-MeC6H4, 4-MeOC6H4, 4-FC6H4, 4-ClC6H4, 3-ClC6H4, 4-BrC6H4, 3,5-Cl2C6H3, 4-F3CC6H4, 4-NCC6H4, 2-thienyl, 4-pyridinyl). In the presence of CuBr, [1,3,5]triazinamines I (R = Me2N, 1-piperidinyl, H, Ph; R1 = H; R2 = H, Me, Ph), 2-aminopyrimidine, 2-aminopyridine, and aniline underwent oxidative condensation reactions with arylacetonitriles R4CH2CN (R4 = Ph, 4-MeC6H4, 4-MeOC6H4, 2-MeOC6H4, 4-FC6H4, 4-ClC6H4, 3-ClC6H4, 3-F3CC6H4) to yield N-triazinylamides I (R = Me2N, 1-piperidinyl, H, Ph; R1 = R4; R2 = H, Me, Ph; R4 = Ph, 4-MeC6H4, 4-MeOC6H4, 2-MeOC6H4, 4-FC6H4, 4-ClC6H4, 3-ClC6H4, 3-F3CC6H4), N-(2-pyrimidinyl)benzamide, N-(2-pyridinyl)benzamide, and N-phenylbenzamide. In addition to this study using 4-Fluorobenzonitrile, there are many other studies that have used 4-Fluorobenzonitrile(cas: 1194-02-1Recommanded Product: 1194-02-1) was used in this study.

4-Fluorobenzonitrile(cas: 1194-02-1) is used as chemical intermediate, solvent for perfumes and pharmaceuticals, stabilizer for chlorinated solvents, HPLC analysis, catalyst and component of transition-metal complex catalysts.Recommanded Product: 1194-02-1

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2022,Gao, Hongjie; Chen, Jia-Yi; Peng, Zhiqiang; Feng, Lei; Tung, Chen-Ho; Wang, Wenguang published an article in Journal of Organic Chemistry. The title of the article was 《Bioinspired Iron-Catalyzed Dehydration of Aldoximes to Nitriles: A General N-O Redox-Cleavage Method》.Recommanded Product: 2-Bromobenzonitrile The author mentioned the following in the article:

An efficient iron catalyst, Cp*Fe(1,2-Cy2PC6H4O), which rapidly converts various aliphatic and aromatic aldoximes RCH=NOH [R = Pr, Ph, 2H-1,3-benzodioxol-5-yl, etc.] to nitriles RCN with release of H2O at room temp was reported. The catalysis involves redox activation of the N-O bond by a 1e- transfer from the iron catalyst to the oxime. Such redox-mediated N-O cleavage was demonstrated by the isolation of a ferrous iminato intermediate from the reaction of the ketoxime substrate. This iron-catalyzed acceptorless dehydration approach represents a general method for the preparation of nitriles, and it also delivers salicylonitriles R1CN(2-OH) [R1 = Ph, 3-methoxyphenyl, naphthalen-1-yl, etc.] catalyzing the Kemp elimination reaction. After reading the article, we found that the author used 2-Bromobenzonitrile(cas: 2042-37-7Recommanded Product: 2-Bromobenzonitrile)

2-Bromobenzonitrile(cas: 2042-37-7) is used as a starting material to synthesize novel benzothiophene derivatives that were found to exhibit antibacterial and antifungal activity. It is commonly employed in reactions that require an electron-rich species to carry out nucleophilic substitution (or addition) reactions.Recommanded Product: 2-Bromobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2022,Luo, Lan; Liu, Hongqiang; Zeng, Wei; Hu, Wenkang; Wang, Dawei published an article in Applied Organometallic Chemistry. The title of the article was 《BTP-Rh@g-C3N4 as an efficient recyclable catalyst for dehydrogenation and borrowing hydrogen reactions》.Related Products of 1194-02-1 The author mentioned the following in the article:

Highly active catalysts play an important role in modern catalysis. A novel and efficient ligand benzotriazole-pyrimidine (BTP) and the corresponding rhodium composite on C3N4 were successfully synthesized. The resulting rhodium composite was fully characterized by SEM (SEM), transmission electron microscopy (TEM), x-ray diffraction (XRD), thermogravimetric anal. (TGA), and XPS. The obtained composite exhibited good catalytic activity and good recovery performance in the synthesis of quinoxaline from 2-aminobenzyl alc. and benzonitrile, and more than 20 quinoxalines were obtained in good yields. Addnl., it also showed that rhodium composite could achieved good catalytic performance in the synthesis of functionalized ketone through borrowing hydrogen strategy. The results came from multiple reactions, including the reaction of 4-Fluorobenzonitrile(cas: 1194-02-1Related Products of 1194-02-1)

4-Fluorobenzonitrile(cas: 1194-02-1) is used in the synthesis of flurenones, pharmaceutical prerequisites, as well as opiod receptor antagonists.Related Products of 1194-02-1

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Zhang, Yan; Xia, Mingze; Li, Min; Ping, Qian; Yuan, Zhenbo; Liu, Xuanzhong; Yin, Huimin; Huang, Shuping; Rao, Yijian published an article in 2021. The article was titled 《Energy-transfer-mediated photocatalysis by a bioinspired organic perylene photosensitizer HiBRCP》, and you may find the article in Journal of Organic Chemistry.SDS of cas: 105942-08-3 The information in the text is summarized as follows:

Energy transfer plays a special role in photocatalysis by utilizing the potential energy of the excited state through indirect excitation, in which a photosensitizer determines the thermodn. feasibility of the reaction. Bioinspired by the energy-transfer ability of natural product Cercosporin, here we developed a green and highly efficient organic photosensitizer HiBRCP (hexaisobutyryl reduced Cercosporin) through structural modification of Cercosporin. After structural manipulation, its triplet energy was greatly improved, and then, it could markedly promote the efficient geometrical isomerization of alkenes from the E-isomer to the Z-isomer. Moreover, it was also effective for energy-transfer-mediated organometallic catalysis, which allowed realization of the cross-coupling of aryl bromides and carboxylic acids through efficient energy transfer from HiBRCP to nickel complexes. Thus, the study on the relationship between structural manipulation and their photophys. properties provided guidance for further modification of Cercosporin, which could be applied to more meaningful and challenging energy-transfer reactions. In the experiment, the researchers used 4-Bromo-2-fluorobenzonitrile(cas: 105942-08-3SDS of cas: 105942-08-3)

4-Bromo-2-fluorobenzonitrile(cas:105942-08-3) is used as a OLED intermediate, Pharmaceutical, electronic and chemical intermediate.SDS of cas: 105942-08-3 It is used in the synthesis of heterocycles and liquid crystals.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Niakan, Mahsa; Masteri-Farahani, Majid; Karimi, Sabah; Shekaari, Hemayat published an article in 2021. The article was titled 《Hydrophilic role of deep eutectic solvents for clean synthesis of biphenyls over a magnetically separable Pd-catalyzed Suzuki-Miyaura coupling reaction》, and you may find the article in Journal of Molecular Liquids.Electric Literature of C7H4BrN The information in the text is summarized as follows:

In the present work, a heterogeneous Pd catalyst was synthesized through a green method and deep eutectic solvents (DESs) as green reaction media were used. In order to prepare the catalyst, magnetite-graphene oxide nanocomposite was modified with cellulose via the click reaction and applied as support for Pd nanoparticles. Cellulose acted as both reducing and stabilizing agent for Pd nanoparticles and eliminated the requirement of a reducing agent. The prepared catalyst was characterized by different methods such as FT-IR, EDX, EDX-mapping, XPS, SEM, TEM, XRD, VSM and ICP-OES analyses. Catalytic properties of the obtained catalyst was explored in the Suzuki-Miyaura coupling reaction of aryl halides with aryl boronic acids to afford biphenyls R-R1 [R = Ph, 2-MeC6H4, 4-HOC6H4, etc.; R1 = Ph, 2-thienyl, 4-MeC6H4, 4-O2NC6H4] in different hydrophilic and hydrophobic DESs. The presence of cellulose with hydrophilic character on the structure of catalyst offered well dispersion of the catalyst in hydrophilic DESs, which led to enhancement of its catalytic activity. This simple and new separation strategy provided a clean and highly efficient synthetic methodol. for the synthesis of various biphenyls. In the part of experimental materials, we found many familiar compounds, such as 4-Bromobenzonitrile(cas: 623-00-7Electric Literature of C7H4BrN)

4-Bromobenzonitrile(cas: 623-00-7) has been used in the synthesis of 4-iodobenzonitrile via photo-induced aromatic Finkelstein iodination reaction.Electric Literature of C7H4BrN It can also be used as an aryl halide test compound in developing greener reaction conditions for Suzuki cross-coupling between aryl halides and phenyl boronic acid.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Sikari, Rina; Chakraborty, Gargi; Guin, Amit Kumar; Paul, Nanda D. published their research in Journal of Organic Chemistry in 2021. The article was titled 《Nickel-Catalyzed [4 + 2] Annulation of Nitriles and Benzylamines by C-H/N-H Activation》.Recommanded Product: 4-Fluorobenzonitrile The article contains the following contents:

Nickel-catalyzed [4 + 2] annulation of benzylamines and nitriles via C-H/N-H bond activation, providing straightforward atom-economic access to a wide variety of multisubstituted quinazolines, is reported. Mechanistic investigation revealed that the in situ formed amidines from the coupling of benzylamines and nitriles direct the nickel catalyst to activate the ortho-C-H bond of the Ph ring of the benzylamine. In the experimental materials used by the author, we found 4-Fluorobenzonitrile(cas: 1194-02-1Recommanded Product: 4-Fluorobenzonitrile)

4-Fluorobenzonitrile(cas: 1194-02-1) is used in the synthesis of flurenones, pharmaceutical prerequisites, as well as opiod receptor antagonists.Recommanded Product: 4-Fluorobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts