Tag: 100-200

In 2019,Tetrahedron Letters included an article by Yu, Xiaoqiang; Yin, Qing; Zhang, Zhiheng; Huang, Tianyu; Pu, Zichao; Bao, Ming. Formula: C7H4FN. The article was titled 《Synthesis of 2-substituted benzothiazoles via the Bronsted acid catalyzed cyclization of 2-amino thiophenols with nitriles》. The information in the text is summarized as follows:

A convenient and efficient method for the synthesis of 2-substituted benzothiazoles I [R1 = H, 5-Cl; R2 = H, 4-Me, 3-F3C, etc.] from simple and readily available 2-aminothiophenols and nitriles was described. The Bronsted acid-catalyzed cyclization reaction was performed under metal and solvent-free conditions. The low cost of catalyst and simplicity of procedure were advantages of this method. In the experiment, the researchers used many compounds, for example, 4-Fluorobenzonitrile(cas: 1194-02-1Formula: C7H4FN)

4-Fluorobenzonitrile(cas: 1194-02-1) is used in the synthesis of flurenones, pharmaceutical prerequisites, as well as opiod receptor antagonists.Formula: C7H4FN

Referemce:
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《Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling》 was written by Wang, Tao; Hu, Zhubin; Nie, Xiancheng; Huang, Linkun; Hui, Miao; Sun, Xiang; Zhang, Guoqing. Application In Synthesis of 4-Cyanobenzyl bromideThis research focused ontriphenylamine phosphorescence aggregation induced emission. The article conveys some information:

Aggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting mol. motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theor. investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global min. from the lowest triplet excited state (T1). The reported mol. construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom mol. systems with complex excited-state dynamics. In the experimental materials used by the author, we found 4-Cyanobenzyl bromide(cas: 17201-43-3Application In Synthesis of 4-Cyanobenzyl bromide)

4-Cyanobenzyl bromide(cas: 17201-43-3) can reacts with 2H-tetrazole in the presence of KOH to yield 4-[(2H-tetra-zol-2-yl)methyl]benzonitrile. And it may be used in the synthesis of ligands containing a chelating pyrazolyl-pyridine group with a pendant aromatic nitrile.Application In Synthesis of 4-Cyanobenzyl bromide

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Formula: C7H4BrNIn 2019 ,《Semiheterogeneous Dual Nickel/Photocatalytic (Thio)etherification Using Carbon Nitrides》 was published in Organic Letters. The article was written by Cavedon, Cristian; Madani, Amiera; Seeberger, Peter H.; Pieber, Bartholomaeus. The article contains the following contents:

A carbon nitride material can be combined with homogeneous nickel catalysts for light-mediated cross-couplings of aryl bromides with alcs. under mild conditions. The metal-free heterogeneous semiconductor is fully recyclable and couples a broad range of electron-poor aryl bromides with primary and secondary alcs. as well as water. The application for intramol. reactions and the synthesis of active pharmaceutical ingredients was demonstrated. The catalytic protocol is applicable for the coupling of aryl iodides with thiols as well. In addition to this study using 4-Bromobenzonitrile, there are many other studies that have used 4-Bromobenzonitrile(cas: 623-00-7Formula: C7H4BrN) was used in this study.

4-Bromobenzonitrile(cas: 623-00-7) has been used in the synthesis of 4-iodobenzonitrile via photo-induced aromatic Finkelstein iodination reaction.Formula: 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,
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In 2022,Liang, Yu-Jie; Zhu, Bo; Su, Zhong-Min; Guan, Wei published an article in Inorganic Chemistry. The title of the article was 《IrIII/NiII-Metallaphotoredox-Catalyzed Enantioselective Decarboxylative Arylation of α-Amino Acids: Theoretical Insight of Enantio-Determining Outer-Sphere Reductive Elimination》.Synthetic Route of C7H4BrN The author mentioned the following in the article:

The IrIII/NiII-metallaphotoredox-catalyzed enantioselective decarboxylative arylation of α-amino acids has been systematically investigated using d. functional theory calculations The combination of oxidative quenching (IrIII-*IrIII-IrIV-IrIII) or reductive quenching (IrIII-*IrIII-IrII-IrIII) cycle with the nickel catalytic cycle (NiII-NiI-NiIII-NiII) is possible. The favorable reaction mechanism consists of three major processes: single-electron transfer, oxidative addition, and stepwise outer-sphere reductive elimination. The rate-determining step is the oxidative addition Unexpectedly, the enantio-determining C-C bond formation occurs via an ion-pair intermediate involved in the stepwise outer-sphere reductive elimination process, which is unusual in the IrIII/NiII-metallaphotoredox catalysis. Furthermore, computational results reveal that the high enantioselectivity of this reaction is mainly dependent on the steric effect of substituents on substrates. This theor. study provides useful knowledge for deep insights into the activity and selectivity of visible-light-mediated enantioselective metallaphotoredox dual catalysis at the mol. and at. levels and benefits the development of asym. synthesis. In the experimental materials used by the author, we found 4-Bromobenzonitrile(cas: 623-00-7Synthetic Route of C7H4BrN)

4-Bromobenzonitrile(cas: 623-00-7) is classified as organic nitriles, which are commonly use solvents and are reacted further for various applications such as manufacture of polymers and intermediates for pharmaceuticals and other organic chemicals,Synthetic Route 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

In 2022,Pan, Liuming; Fu, Wenqian; Zhang, Lei; Wang, Siming; Tang, Tiandi published an article in Molecular Catalysis. The title of the article was 《Highly dispersed Co species in N-doped carbon enhanced the aldehydes ammoxidation reaction activity》.Product Details of 1194-02-1 The author mentioned the following in the article:

Natural vitamin B12 was used as a carbon source for the preparation of a cobalt- and nitrogen-doped catalyst precursor, which was pyrolyzed at different temperatures to obtain cobalt- and nitrogen-doped carbon (Co@NC-T) (T denotes pyrolysis temperature) catalysts. The Co@NC-800 exhibited excellent activity and selectivity in the ammoxidation of aromatic aldehydes with ammonium carbonate to aromatic nitriles compared to the Co@NC-700, Co@NC-600 and Co@NC-500 catalysts. The high catalytic performance of Co@NC-800 could be due to the presence of the low-d. electron cloud of the highly dispersed Co species, which could interact with the benzene ring of benzaldehyde bearing p-π conjugate, thereby promoting the adsorption and activation of benzaldehyde. Consequently, the activated benzaldehyde reacted with amino groups that were decomposed from ammonium carbonate and subsequently underwent a dehydration process to form nitriles.4-Fluorobenzonitrile(cas: 1194-02-1Product Details of 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.Product Details of 1194-02-1

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Nitrile – Wikipedia,
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Kaloglu, Murat; Kaloglu, Nazan; Ozdemir, Ismail published an article in 2021. The article was titled 《Palladium-PEPPSI-NHC Complexes Bearing Imidazolidin-2-Ylidene Ligand: Efficient Precatalysts for the Direct C5-Arylation of N-Methylpyrrole-2-Carboxaldehyde》, and you may find the article in Catalysis Letters.Reference of 2-Bromobenzonitrile The information in the text is summarized as follows:

The Pd-catalyzed direct arylation of pyrroles is an important research field for organic synthesis and catalysis chem. However, imidazolidin-2-ylidene based Pd-NHC complexes (NHC=N-heterocyclic carbene) have not yet been employed as catalysts for the direct C5 mono-arylation of C2-substituted N-methylpyrrole derivatives with aryl halides. Therefore, a report on the synthesis and characterization of new 1,3-bis(substituted benzyl) imidazolinium salts as carbene precursors, and their corresponding Pd-PEPPSI-NHC type complexes (PEPPSI=Pyridine Enhanced Precatalyst Preparation Stabilization and Initiation) has been described. The catalytic properties of these complexes have been evaluated in the direct C5 mono-arylation of N-methylpyrrole-2-carboxaldehyde with a wide variety of (hetero)aryl halides. This environmentally attractive procedure has also been found to be tolerant to a wide variety of functional groups on the aryl halides such as formyl, acetyl, nitrile, fluoro or trifluoromethyl, and good yields have been obtained in presence of 1 mol% catalyst loading at 120°. The results came from multiple reactions, including the reaction of 2-Bromobenzonitrile(cas: 2042-37-7Reference of 2-Bromobenzonitrile)

2-Bromobenzonitrile(cas: 2042-37-7) belongs to a group of ortho-substituted bromobenzenes that have varying hepatotoxicity effects in the presence of rat liver microsomes in vitro. 2-Bromobenzonitrile is also used as a starting material to synthesize novel benzothiophene derivatives that were found to exhibit antibacterial and antifungal activity.Reference of 2-Bromobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Xiao, Wenling; Guan, Xinqiao; Huang, Bingcheng; Ye, Qiuhao; Zhang, Tiantian; Chen, Kuizhi; Peng, Yiru; Fu, Fangmeng published an article in 2021. The article was titled 《Fluorinated dendritic silicon (IV) phthalocyanines nanoparticles: Synthesis, photoinduced intramolecular energy transfer and DNA interaction》, and you may find the article in Dyes and Pigments.Category: nitriles-buliding-blocks The information in the text is summarized as follows:

Two series of fluorinated and non-fluorinated dendritic silicon (IV) phthalocyanines with cyano/nitro/ester terminal functionalities have been synthesized. Their structures were characterized by elemental anal., FT-IR, 1H NMR and ESI-MS. The effects of fluorinated groups and terminal functionalities properties on the photophys. properties, photoinduced intermol. electron transfer and intramol. energy transfer of silicon phthalocyanines were compared. In order to endow water soluble and biocompatibility to these silicon phthalocyanines, an amphiphilic diblock copolymer polyethylene glycol monomethyl ether-polycaprolactone was used to encapsulate these silicon phthalocyanines to form fluorinated and non-fluorinated dendritic silicon phthalocyanines nanoparticles. The binding model between the fluorinated dendritic silicon phthalocyanines nanoparticles and calf thymus DNA was studied by UV-Vis and fluorescence spectroscopic method. The photocleavage DNA activities of three fluorinated dendritic silicon phthalocyanines nanoparticles were compared and the possible cleavage mechanism was proposed. In addition to this study using 4-Cyanobenzyl bromide, there are many other studies that have used 4-Cyanobenzyl bromide(cas: 17201-43-3Category: nitriles-buliding-blocks) was used in this study.

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.Category: nitriles-buliding-blocks

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Desaintjean, Alexandre; Danton, Fanny; Knochel, Paul published their research in Synthesis in 2021. The article was titled 《Preparation of Functionalized Diorganomagnesium Reagents in Toluene via Bromine or Iodine/Magnesium-Exchange Reactions》.Quality Control of 2-Bromobenzonitrile The article contains the following contents:

A wide range of polyfunctionalized di(hetero)aryl- and dialkenyl-magnesium reagents were prepared in toluene within 10 to 120 min between -78°C and 25°C via an I/Mg- or Br/Mg-exchange reaction using reagents of the general formula R2Mg (R = sBu, Mes). Highly sensitive functional groups, such as triazene or nitro, were tolerated in these exchange reactions, enabling the synthesis of various functionalized (hetero)arene and alkene derivatives after quenching with several electrophiles including allyl bromides, acyl chlorides, aldehydes, ketones and aryl iodides. In the experimental materials used by the author, we found 2-Bromobenzonitrile(cas: 2042-37-7Quality Control of 2-Bromobenzonitrile)

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. This substrate molecule undergoes a palladium-catalyzed coupling reaction to form an aromatic ring. The light emission from this reaction can be seen in the reaction solution.Quality Control of 2-Bromobenzonitrile

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Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2019,Organic Letters included an article by Nagaraju, Sakkani; Liu, Shuhua; Liu, Jinggong; Yang, Shuang; Liu, Rui; Chen, Zhizhou; Paplal, Banoth; Fang, Xinqiang. Related Products of 614-16-4. The article was titled 《Regioselectivity-Switchable Catalytic Annulations of Alkynyl α-Diketones and α-Cyanoketones》. The information in the text is summarized as follows:

Regioselectivity-switchable reactions hold irreplaceable importance in the construction of diversified architectures. In this work, Bronsted base-catalyzed regioselectivity-switchable annulations between alkynyl α-diketones and α-cyanoketones have been achieved for the first time, delivering a series of skeletally thoroughly different dihydrofurofuran and furan derivatives A range of novel transformations of the products can be realized. The work also demonstrates the unique features of alkynyl α-diketone chem., which are in sharp contrast to the current understanding of ynone-related chem. In the experimental materials used by the author, we found 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4Related Products of 614-16-4)

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.Related Products of 614-16-4

Referemce:
Nitrile – Wikipedia,
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In 2019,Organic Letters included an article by Wimmer, Alexander; Koenig, Burkhard. Name: 4-Bromobenzonitrile. The article was titled 《N-Arylation of NH-Sulfoximines via Dual Nickel Photocatalysis》. The information in the text is summarized as follows:

The pharmaceutically underexplored sulfoximine moiety has emerged as a potentially active pharmaceutical ingredient. We developed a scalable synthetic route to N-arylated sulfoximines from the resp. “”free”” NH-sulfoximines and bromoarenes. Our strategy is based on a dual nickel photocatalytic approach, is applicable for a broad scope of substrates, and exhibits a highly functional group tolerance. In addition, we could demonstrate that other sulfoximidoyl derivatives like sulfonimidamides and sulfinamides proceed smoothly under the developed reaction conditions. In the experiment, the researchers used 4-Bromobenzonitrile(cas: 623-00-7Name: 4-Bromobenzonitrile)

4-Bromobenzonitrile(cas: 623-00-7) is classified as organic nitriles, which are commonly use solvents and are reacted further for various applications such as manufacture of polymers and intermediates for pharmaceuticals and other organic chemicals,Name: 4-Bromobenzonitrile 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