Category: nitriles-buliding-blocks

Shen, Cong; Zhu, Yuhang; Jin, Shuqi; Xu, Kejie; Luo, Shuxin; Xu, Lixia; Zhong, Guofu; Zhong, Liangjun; Zhang, Jian published an article in 2022. The article was titled 《Regio- and stereo-selective olefinic C-H functionalization of aryl alkenes in ethanol》, and you may find the article in Organic Chemistry Frontiers.Application of 2042-37-7 The information in the text is summarized as follows:

N,N-bidentate-chelation-assisted α- and β-olefinic C-H alkenylation of aryl alkenes in ethanol to afford aryl dienes/trienes with excellent regio- and stereo-selectivities was reported. The reaction of 2-alkenyl benzylamine and benzoic acid derived substrates proceeded through six-membered exo-cyclometallation and seven-membered endo-cyclometallation. The aerobic protocols feature wide functionality tolerance, high selectivities and yields, mild conditions and scalable preparation, and the directing group can be easily removed to afford Boc-protected amine by simple reduction The experimental part of the paper was very detailed, including the reaction process of 2-Bromobenzonitrile(cas: 2042-37-7Application of 2042-37-7)

2-Bromobenzonitrile(cas: 2042-37-7) is a precursor to the quinazolinones, a class of drugs used to treat autoimmune diseases and coronary heart disease. In addition, 2-bromobenzonitrile can be used for the Suzuki coupling reaction.Application of 2042-37-7

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Xing, Ai-Ping; Shen, Zhenpeng; Zhao, Zhe; Tian, Xinzhe; Ren, Yun-Lai published their research in Catalysis Communications in 2021. The article was titled 《CuO-catalyzed conversion of arylacetic acids into aromatic nitriles with K4Fe(CN)6 as the nitrogen source》.Application of 1194-02-1 The article contains the following contents:

CuO was demonstrated to be effective as the catalyst for the conversion of arylacetic acids to aromatic nitriles ArCN [Ar = Ph, 2-MeC6H4, 1-naphthyl, etc.] with non-toxic and inexpensive K4Fe(CN)6 as the nitrogen source via the complete cleavage of the C≡N triple bond. The present method allowed a series of arylacetic acids including phenylacetic acids, naphthaleneacetic acids, 2-thiopheneacetic acid and 2-furanacetic acid to be converted into the targeted products in low to high yields. The experimental process involved the reaction of 4-Fluorobenzonitrile(cas: 1194-02-1Application 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.Application of 1194-02-1

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《Planochromism of cyanoxime anions: Computational and mechanistic studies in solid state and solutions》 was published in Inorganica Chimica Acta in 2020. These research results belong to Morton, Jeffrey; Dennison, Richard; Nemykin, Victor; Gerasimchuk, Nikolay. Application In Synthesis of 3-Oxo-3-phenylpropanenitrile The article mentions the following:

The benzoylcyanoxime, NC-C(=N-OH)-C(O)-C6H5 (later H(BCO)), represents a new ampolydentate ligand that received attention in the light of useful biol. properties of its coordination compounds Colorless H(BCO), upon deprotonation, gains color that depends on the counter-cation and the system in general. Five derivatives of H(BCO), with colorless organic and inorganic mono-cations – Cs, Tl, Ag, N(CH3)4 and As(C6H5)4 – were synthesized and characterized by the X-ray anal., vibrational and electronic spectroscopy. Compounds exhibited unexpected and significant differences in color, both in solid state and in solutions, that were challenging to explain, thereby warranting detailed investigation including high-level DFT/TDFT computations. It was found that the BCO- anion demonstrates neg. solvatochromic in polar protic ROH (R=H, CH3, C2H5, C3H7, C4H9) solvents, and appears yellow in color, as tetraalkylammonium or alkali metal salts. In polar aprotic solvents, such as CH3CN, DMF, and DMSO, solutions of the BCO- anion are red. The color originates from n → π * transition in the anion. Solid state structures evidenced a considerable dependence on planarity of the BCO- anion on its color, as well as on the character of bonding in the C-N-O fragment: yellow color is associated with an oxime (bond length C-N is shorter than N-O), while red color is due to the nitroso character (bond length C-N is longer than the N-O). An addition of ethanol to red solutions of the BCO-containing salts leads to the color change to yellow, which is the result of the formation of an H-bond between the C-N-O fragment of cyanoxime and the solvent, also leading to the flattening of the structure. An explanation for this new color-changing effect was offered, based on exptl. evidence and TD/DFT calculations In the experiment, the researchers used 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4Application In Synthesis of 3-Oxo-3-phenylpropanenitrile)

3-Oxo-3-phenylpropanenitrile(cas: 614-16-4) has been used to produce 2-benzoyl-3-furan-2-yl-acrylonitrile. It is an active methylene compound, useful in heterocyclic synthesis, e.g. polyfunctional pyridines and pyrimidines.Application In Synthesis of 3-Oxo-3-phenylpropanenitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《The direct C4-arylation of 3,5-dimethylisoxazole with aryl bromides catalyzed by imidazolidin-2-ylidene based palladium-PEPPSI complexes》 was published in Inorganica Chimica Acta in 2020. These research results belong to Kaloglu, Murat; Ozdemir, Ismail. HPLC of Formula: 2042-37-7 The article mentions the following:

In this study, the synthesis and characterization of four new imidazolinium salts as carbene precursors and their corresponding four new PEPPSI-type (PEPPSI = Pyridine Enhanced Precatalyst Preparation Stabilization and Initiation) palladium complexes I (R = 4-Me, 2,4,6-tri-Me, 2,3,4,5,6-pentamethyl, 4-tert-butyl) were reported. The catalytic activities of all palladium complexes I were evaluated in the direct C4-arylation of 3,5-dimethylisoxazole with para-substituted aryl bromides 4-R1C6H4Br (R1 = H, Me, CHO, F, etc.), ortho-substituted aryl bromides 2-R2C6H4Br (R2 = Me, CN) and heteroaryl bromides R3Br (R3 = quinolin-3-yl, thiophen-2-yl). A range of functional groups such as methoxy, acetyl, formyl, fluoro, trifluoromethyl, nitrile or tert-Bu on the aryl bromides were successfully tolerated, and good yields were generally obtained in presence of 1 mol% catalyst loading at 120°C. In the experimental materials used by the author, we found 2-Bromobenzonitrile(cas: 2042-37-7HPLC of Formula: 2042-37-7)

2-Bromobenzonitrile(cas: 2042-37-7) is a precursor to the quinazolinones, a class of drugs used to treat autoimmune diseases and coronary heart disease. In addition, 2-bromobenzonitrile can be used for the Suzuki coupling reaction.HPLC of Formula: 2042-37-7

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

The author of 《Indium(III)chloride catalyzed synthesis of novel 1H-pyrazolo[1,2-b]phthalazine-5,10-diones and 1H-pyrazolo[1,2-a]pyridazine-5,8-diones under solvent-free condition》 were Jadhav, Amol Maruti; Balwe, Sandip Gangadhar; Kim, Jong Su; Lim, Kwon Taek; Jeong, Yeon Tae. And the article was published in Tetrahedron Letters in 2019. Name: 3-Oxo-3-phenylpropanenitrile The author mentioned the following in the article:

An efficient, inexpensive and environmentally friendly synthesis of novel 3-amino-2-benzoyl-1-aryl-1H-pyrazolo[1,2-b]phthalazine-5,10-dione and 3-amino-2-benzoyl-1-aryl-1H-pyrazolo[1,2-a]pyridazine-5,8-dione derivatives were developed via one-pot three-component reaction of phthalhydrazide or maleic hydrazide, aryl aldehydes and substituted benzoylacetonitriles in the presence of catalytic amount of InCl3 as a Lewis acid catalyst under solvent-free conditions. A mild reaction conditions, short reaction times, high yields and a wide range of functional group tolerance were the most important features of this protocol. The experimental process involved the reaction of 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4Name: 3-Oxo-3-phenylpropanenitrile)

3-Oxo-3-phenylpropanenitrile(cas: 614-16-4) has been used in the synthesis of substituted naphtho[1,8-bc]pyrans. It was also used as building block in the preparation of 4H-pyrans, 2-pyridones, furans and carbocyclics.Name: 3-Oxo-3-phenylpropanenitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

The author of 《Bis-salophen palladium complex immobilized on Fe3O4@SiO2 nanoparticles as a highly active and durable phosphine-free catalyst for Heck and copper-free Sonogashira coupling reactions》 were Sardarian, Ali Reza; Kazemnejadi, Milad; Esmaeilpour, Mohsen. And the article was published in Dalton Transactions in 2019. Related Products of 623-00-7 The author mentioned the following in the article:

New Fe3O4@SiO2 core-shell superparamagnetic nanoparticles functionalized by a bis-salophen Schiff base Pd complex were synthesized and employed as an efficient magnetic nanocatalyst in the Heck and Sonogashira cross coupling reactions. The synthesized nanostructures were characterized by FTIR spectroscopy (FTIR), XRD, dynamic light scattering (DLS), energy dispersive X-ray anal. (EDX), XPS, elemental anal. (CHN), cyclic voltammetry (CV), Brunauer-Emmett-Teller anal. (BET), and UV-visible spectroscopy. The morphol. and size of the nanoparticles were studied by FE-SEM and TEM analyses. The magnetic properties of the catalyst were studied by VSM anal. The loading content and leaching amounts of Pd on the catalyst were measured by inductively coupled plasma (ICP) anal. The thermal behavior of this magnetic heterogeneous catalyst was studied using a TGA instrument. This heterogeneous catalytic system showed a good performance in the coupling of aryl halides with alkynes (Sonogashira reaction) as well as aryl halides with alkene derivatives (Heck reaction). High to excellent yields were achieved for these C-C coupling reactions. The catalyst can be simply separated from the reaction media by an external magnet and reused for 8 consecutive runs without any significant loss of activity. The kinetics of the reactions were studied. After reading the article, we found that the author used 4-Bromobenzonitrile(cas: 623-00-7Related Products of 623-00-7)

4-Bromobenzonitrile(cas: 623-00-7) has been used in the synthesis of 4-iodobenzonitrile via photo-induced aromatic Finkelstein iodination reaction.Related Products of 623-00-7 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

In 2019,Inorganica Chimica Acta included an article by Chang, Chao-Wan; Lee, Gene-Hsiang. Reference of 4-Cyanobenzyl bromide. The article was titled 《Synthesis of ruthenium triazolato complexes by the [3 + 2] cycloaddition of a ruthenium azido complex with acetylacetylenes》. The information in the text is summarized as follows:

The [3 + 2] cycloaddition of two acetylacetylenes with ruthenium azido complex [Ru]-N3 (1, [Ru] = (η5-C5H5)(dppe)Ru, dppe = Ph2PCH2CH2PPh2) is reported. The metal-bound heterocyclic complexes produced are triazolato complexes [Ru]N3C2H(COCH3) (2) and [Ru]N3C2(Ph)(COCH3) (3) from 3-butyn-2-one and 4-phenyl-3-butyn-2-one, resp. Both of the structures of 2 and 3 are clearly established as N(2)-bound. Alkylation of 2 with organic halides affords a series of N(1)-bound N(3)-alkyl-4-acetyl triazolato complexes {[Ru]N3(CH2R)C2H(COCH3)}[X] (4a, R = H, X = I; 4b, R = C6F5, X = Br; 4c, R = Ph, X = Br; 4d, R = 2,6-F2-C6H3, X = Br; 4e, R = 4-CN-C6H4, X = Br). Treatment of 4a with CH3I in refluxing CHCl3 afforded [Ru]-I (5). The structures of complexes 2, 3, 4a and 5 have been determined by single-crystal x-ray diffraction anal. The results came from multiple reactions, including the reaction of 4-Cyanobenzyl bromide(cas: 17201-43-3Reference of 4-Cyanobenzyl bromide)

4-Cyanobenzyl bromide(cas: 17201-43-3) is a white solid. Its melting point is 113-117°C, and flash point is 125.1°C. It is insoluble in water at 20°C. It is stable under normal temperatures and pressures. It should be stored at 0-5°C.Reference of 4-Cyanobenzyl bromide

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2017,Szilvasi, Tibor; Roling, Luke T.; Yu, Huaizhe; Rai, Prabin; Choi, Sangwook; Twieg, Robert J.; Mavrikakis, Manos; Abbott, Nicholas L. published 《Design of Chemoresponsive Liquid Crystals through Integration of Computational Chemistry and Experimental Studies》.Chemistry of Materials published the findings.Recommanded Product: 105942-08-3 The information in the text is summarized as follows:

We report the use of computational chem. methods to design a chem. responsive liquid crystal (LC). Specifically, we used electronic structure calculations to model the binding of nitrile-containing mesogens (4′-n-pentyl-4-biphenylcarbonitrile) to metal perchlorate salts (with explicit description of the perchlorate anion), which we call the coordinately saturated anion model (CSAM). The model results were validated against exptl. data. We then used CSAM to predict that selective fluorination can reduce the strength of binding of nitrile-containing nematic LCs to metal salt-decorated surfaces and thus generate a faster reordering of LC in response to competitive binding of dimethylmethylphosphonate (DMMP). We tested this prediction via synthesis of fluorinated compounds 3-fluoro-4′-pentyl[1,1′-biphenyl]-4-carbonitrile and 4-fluoro-4′-pentyl-1,1′-biphenyl, and subsequent exptl. measurements of the orientational response of LCs containing these compounds to DMMP. These exptl. measurements confirmed the theor. predictions, thus providing the first demonstration of a chemoresponsive LC system designed from computational chem. The experimental part of the paper was very detailed, including the reaction process of 4-Bromo-2-fluorobenzonitrile(cas: 105942-08-3Recommanded Product: 105942-08-3)

4-Bromo-2-fluorobenzonitrile(cas:105942-08-3) is used as a reagent in the synthesis of picolinamide derivatives as a novel class of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) inhibitors.Recommanded Product: 105942-08-3 4-Bromo-2-fluorobenzonitrile is also used in the preparation of fluorinated CB2 receptor agonists for PET imaging.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2017,Xu, Xuezhao; Li, Bingnan; Zhao, Yingwei; Song, Qiuling published 《Aerobic oxidative decyanation-amidation of arylacetonitriles with urea as a nitrogen source》.Organic Chemistry Frontiers published the findings.Recommanded Product: 2-(3-Bromophenyl)acetonitrile The information in the text is summarized as follows:

An iron-catalyzed aerobic oxidative amidation reaction of the inert C-CN bond of aryl acetonitriles to afford aryl amides ArCONH2 (Ar = C6H5, 3-CH3OC6H4, 4-FC6H4, etc.) has been developed. Urea is used as an efficient and convenient nitrogen source. This reaction provides practical access toward amide synthesis. The experimental process involved the reaction of 2-(3-Bromophenyl)acetonitrile(cas: 31938-07-5Recommanded Product: 2-(3-Bromophenyl)acetonitrile)

According to other reports, 2-(3-Bromophenyl)acetonitrile(cas: 31938-07-5) is used in the preparation of diarylpyrimidines (DAPYs) as HIV-1 non-nucleoside reverse transcriptase inhibitors.Recommanded Product: 2-(3-Bromophenyl)acetonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Wang, Zhi Yong; Zha, Zheng Gen; Zhang, Jia Hai; Wu, Ji Hui published an article on January 31 ,2003. The article was titled 《An efficient palladium-catalyzed coupling reaction for the preparation of biaryls and polyaryls》, and you may find the article in Chinese Chemical Letters.COA of Formula: C12H8N2 The information in the text is summarized as follows:

With Pd(PPh3)4 as catalyst and toluene as reaction solvent, the desired biaryls and polyaryls were synthesized in 75-98% yields and on a large scale. In the experiment, the researchers used 3-(Pyridin-4-yl)benzonitrile(cas: 4350-55-4COA of Formula: C12H8N2)

3-(Pyridin-4-yl)benzonitrile(cas: 4350-55-4) belongs to nitriles. Nitriles are found in many useful compounds. Nitrile rubber is also widely used as automotive and other seals since it is resistant to fuels and oils. Organic compounds containing multiple nitrile groups are known as cyanocarbons.COA of Formula: C12H8N2

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts