Month: October 2022

Sen, Arunabha; Dutta, Subhajit; Dam, Gourab K.; Samanta, Partha; Let, Sumanta; Sharma, Shivani; Shirolkar, Mandar M.; Ghosh, Sujit K. published an article in 2021. The article was titled 《Imidazolium-Functionalized Chemically Robust Ionic Porous Organic Polymers (iPOPs) toward Toxic Oxo-Pollutants Capture from Water》, and you may find the article in Chemistry – A European Journal.Quality Control of 4-Cyanobenzyl bromide The information in the text is summarized as follows:

Fabricating new and efficient materials aimed at containment of water contamination, in particular removing toxic heavy metal based oxo-anions (e. g. CrO42-, TcO4-) holds paramount importance. In this work, we report two new highly stable imidazolium based ionic porous organic polymers (iPOPs) decorated with multiple interaction sites along with electrostatics driven adsorptive removal of such oxo-anions from water. Both the iPOPs (namely, iPOP-3 and iPOP-4) exhibited rapid sieving kinetics and very high saturation uptake capacity for CrO42- anions (170 and 141 mg g-1 for iPOP-3 and iPOP-4 resp.) and ReO4- (515.5 and 350.3 mg g-1 for iPOP-3 and iPOP-4 resp.), where ReO4- anions being the non-radioactive surrogative counterpart of radioactive TcO4- ions. Noticeably, both iPOPs showed exceptional selectivity towards CrO42- and ReO4- even in presence of several other concurrent anions such as Br-, Cl-, SO42-, NO3- etc. The theor. binding energy calculations via DFT method further confirmed the preferential interaction sites as well as binding energies of both iPOPs towards CrO42- and ReO4- over all other competing anions which corroborates with the exptl. high capacity and selectivity of iPOPs toward such oxo-anions. In the experimental materials used by the author, we found 4-Cyanobenzyl bromide(cas: 17201-43-3Quality Control 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.Quality Control of 4-Cyanobenzyl bromide

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Akkoc, Mitat; Bugday, Nesrin; Altin, Serdar; Yasar, Sedat published an article in 2021. The article was titled 《Magnetite@MCM-41 nanoparticles as support material for Pd-N-heterocyclic carbene complex: A magnetically separable catalyst for Suzuki-Miyaura reaction》, and you may find the article in Applied Organometallic Chemistry.Application In Synthesis of 2-Bromobenzonitrile The information in the text is summarized as follows:

The magnetite@MCM-41@NHC@Pd catalyst was obtained with Pd metal bound to the NHC ligand anchored to the surface of Fe3O4@MCM-41. It was characterized by Fourier transform IR (FTIR) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), XPS, energy disperse X-ray anal. (EDX), thermogravimetric anal. (TGA), DTA, and SEM. The amount of Pd in the magnetite@MCM-41@NHC@Pd was measure by inductively coupled plasma-optical emission spectroscopy (ICP-OES) anal. The catalytic activity of magnetite@MCM-41@NHC@Pd heterogeneous catalyst done on Suzuki-Miyaura reactions of aryl halides with different substituted arylboronic acid derivatives All coupling reactions afforded excellent yields and up to 408404 turnover frequency (TOF) h-1 in the presence of 2 mg of magnetite@MCM-41@NHC@Pd catalyst (0.0564 mmol g-1, 0.01127 mmol% Pd) at room temperature in 2-propanol/H2O (1:2). Moreover, magnetite@MCM-41@NHC@Pd catalyst was recover by applying the magnet and reused for another reaction. The catalyst showed excellent structural and chem. stability and reused ten times without a substantial loss in its catalytic performance. The experimental process involved the reaction of 2-Bromobenzonitrile(cas: 2042-37-7Application In Synthesis of 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.Application In Synthesis of 2-Bromobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Wang, Risheng; Peng, Zhihua; Wu, Pingping; Lu, Jinzhi; Rood, Mark J.; Sun, Hongman; Zeng, Jingbin; Wang, Youhe; Yan, Zifeng published an article in 2021. The article was titled 《Direct Synthesis of Nanosheet-Stacked Hierarchical “”Honey Stick-like”” MFI Zeolites by an Aromatic Heterocyclic Dual-Functional Organic Structure-Directing Agent》, and you may find the article in Chemistry – A European Journal.Electric Literature of C8H6BrN The information in the text is summarized as follows:

Soft template designing is the most promising strategy for the synthesis of zeolite nanosheets. MFI nanosheets directed by soft templates (containing long-chain alkyl groups or aromatic groups as hydrophobic component) can be found frequently. However, so far, MFI nanosheets synthesized by soft templates with aromatic heterocycle groups (e. g., s-triazine groups) are rare. Herein, a nanosheet-stacked hierarchical MFI zeolite (NSHM) has been synthesized by using a triply branched s-triazine-based surfactant as a bifunctional organic structure-directing agent. On the basis of a geometrical match relationship, a formation model has been proposed. Synthesized NSHM had abundant mesopores stacked by nanosheets and exhibited a high surface area (430 m2 · g-1). The 1 wt% Pd/NSHM attained a significant increase in yield of cyclohexanol/cyclohexanone mixture (from 66 to 85 %) in the oxidation of cyclohexane compared with Silicalite-1 and SBA-15 as supports.4-Cyanobenzyl bromide(cas: 17201-43-3Electric Literature of C8H6BrN) was used in this study.

4-Cyanobenzyl bromide(cas: 17201-43-3) is an important intermediate for pharmaceutical production. It can be used for the synthesis of a series of piperidine-linked aromatic diimidazolines, which have been synthesized as conformationally restricted congeners of the anti-Pneumocystis carinii (PCP) drug, Pentamidine.Electric Literature of C8H6BrN

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Lai, Liming; Fang, Bing; Fan, Mingyu; Cheng, Wenyu; Yin, Meizhen published an article in 2021. The article was titled 《Modulating Room-Temperature Phosphorescence through the Synergistic Effect of Heavy-Atom Effect and Halogen Bonding》, and you may find the article in Journal of Physical Chemistry C.Synthetic Route of C7H3BrFN The information in the text is summarized as follows:

Organic room-temperature phosphorescence (RTP) materials have been paid great attention for their promising applications in anticounterfeiting, optical device, and bioimaging. However, owing to inefficient intersystem crossing (ISC), it still remains a challenge to develop organic RTP materials with both high quantum yields (Φp) and long lifetime (τp). Herein, a reasonable strategy is presented to modulate and balance the Φp and τp through the synergy effect of halogen bonding and heavy-atom effect (HAE). Modulated RTP properties are successfully achieved by the introduction of halogen atoms into 4-(9-H-carbazol-9-yl) benzonitrile due to enhanced ISC. Especially, CzBzBr shows the highest Φp of 23.50% and CzBzCl exhibits the longest τp of 607.4 ms. The excessive HAE of the bromine atom decreases the τp of CzBzBr, while moderate HAE of the chlorine atom endows CzBzCl with both high Φp and long τp. In addition, the halogen bondings lead to specific halogen-mediated mol. cluster packing, further suppressing nonradiative transition for ultralong RTP emission. Through simple phys. co-crystallization with adjusting the mass ratio of CzBzCl/CzBzBr, co-crystals with modulated RTP properties and white-light emission phenomena are obtained. Our study provides a rationale method to develop modulated high-efficiency RTP materials, which will expand their practical applications.4-Bromo-2-fluorobenzonitrile(cas: 105942-08-3Synthetic Route of C7H3BrFN) was used in this study.

4-Bromo-2-fluorobenzonitrile(cas:105942-08-3) is used as a OLED intermediate, Pharmaceutical, electronic and chemical intermediate.Synthetic Route of C7H3BrFN It is used in the synthesis of heterocycles and liquid crystals.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Jia, Qianfa; Yin, Guoliang; Lan, Yunfei; Lin, Yinhe; Ren, Qiao published an article in 2021. The article was titled 《Base-mediated Benzannulation Reactions for the Synthesis of Densely Functionalized Aryl α-Keto Esters》, and you may find the article in Asian Journal of Organic Chemistry.Category: nitriles-buliding-blocks The information in the text is summarized as follows:

A novel and straightforward strategy for the construction of versatile densely functionalized aryl α-keto esters were disclosed through a one-pot and efficient [4+2] benzannulation reaction of α-cyano-β-methylenones and ynediones, which were synthesized easily from the corresponding starting materials. This protocol featured high yield, mild metal-free reaction condition, high atom economy, high functional-group tolerance, easy handing and gram-scale synthesis. In the part of experimental materials, we found many familiar compounds, such as 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4Category: nitriles-buliding-blocks)

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.Category: nitriles-buliding-blocks

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2022,Zheng, Yuanqin; Zhou, Yuqiao; Zhang, Yan; Deng, Pengchi; Zhao, Xiaohu; Jiang, Shichao; Du, Guangxi; Shen, Xin; Xie, Xinyu; Su, Zhishan; Yu, Zhipeng published an article in Chemistry – An Asian Journal. The title of the article was 《Water-Involved Ring-Opening of 4-Phenyl-1,2,4-triazoline-3,5-dione for “”Photo-Clicked”” Access to Carbamoyl Formazan Photoswitches In Situ》.Electric Literature of C7H3BrFN The author mentioned the following in the article:

A “”photo-click”” method that involved nitrile imine from diarylsydnone to capture diazenecarbonyl-phenyl-carbamic acid (DACPA) generated by water-promoted ring-opening of PTAD was described. DFT calculation revealed that H-bonding interactions between PTAD and water were vital to form DACPA which exhibited an umpolung effect during ligation by nature bond orbit anal. (NBO). The ultra-fast ligation resulted in carbamoyl formazans, as a unique Z <-> E photo-switchable linker on target mols., including peptide and drugs, with excellent anti-fatigue performance. This strategy was showcased to construct highly functionalized carbamoyl formazans such as I [R = H, 4-F, 4-Ph, etc.; R1 = 4-CF3, 3-CN, etc.; R2 = H, 4-F, 4-MeO, etc.] in situ for photo-pharmacol. and material studies, which also expanded chem. of PTAD in aqueous media.4-Bromo-2-fluorobenzonitrile(cas: 105942-08-3Electric Literature of C7H3BrFN) was used in this study.

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.Electric Literature of C7H3BrFN 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 2022,Chahkamali, Farhad Omarzehi; Sobhani, Sara; Sansano, Jose Miguel published an article in Catalysis Letters. The title of the article was 《Water-Dispersible Pd-N-Heterocyclic Carbene Complex Immobilized on Magnetic Nanoparticles as a New Heterogeneous Catalyst for Fluoride-Free Hiyama, Suzuki-Miyaura and Cyanation Reactions in Aqueous Media》.Reference of 4-Fluorobenzonitrile The author mentioned the following in the article:

Pd-N-heterocyclic carbine complex immobilized on magnetic nanoparticles was synthesized and characterized by different techniques such as FT-IR, XPS, TEM, EDX, FESEM, VSM, TGA and ICP. The synthesized catalyst was used as a new water dispersible heterogeneous catalyst in the fluoride-free Hiyama, Suzuki-Miyaura and cyanation reactions in pure water. By this method, different types of biaryls and aryl nitriles were synthesized in good to high yields by the reaction of a variety of aryl iodides, bromides and chlorides with triethoxyphenylsilane, phenylboronic acid and K4[Fe(CN)6]·3H2O, resp. The presence of sulfonates as hydrophilic groups on the surface of the catalyst confers a highly water dispersible, active and yet magnetically recoverable Pd catalyst. The possibility to perform the reaction in water as a green medium, ease of the catalyst recovery and reuse by magnetic separation, and the absence of any additives or co-solvents make this method as an eco-friendly and economical protocol for the synthesis of biaryl derivatives and aryl nitriles.4-Fluorobenzonitrile(cas: 1194-02-1Reference of 4-Fluorobenzonitrile) 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.Reference of 4-Fluorobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2022,Altan, Orhan published an article in Applied Organometallic Chemistry. The title of the article was 《A rare example of the in-situ formation of palladium nanoparticles: The emergence of catalytically active palladium nanoparticles from Pd (II) phosphine complexes in the Suzuki-Miyaura coupling reaction》.Name: 2-Bromobenzonitrile The author mentioned the following in the article:

Pd (II) complexes of phosphino-benzaldoxime ligands were synthesized, characterized and tested in SMC reactions. Interestingly, it was found that the catalytic activity increased by 11 times when the amount of catalyst was reduced by 10-fold and increased by five times when the amount of catalyst was decreased by 100-fold. The detailed analyses revealed that the palladium nanoparticles (NPs) are responsible for the catalytic activity which was formed in the reaction medium. A plausible mechanism was proposed for the formation of Pd NPs from palladium phosphino-benzaldoxime complexes in the reaction medium. This study is expected to contribute to the debate over whether the catalytic activity of phosphine-palladium complexes in SMC reactions results from a homogeneous or heterogeneous pathway. In the experiment, the researchers used 2-Bromobenzonitrile(cas: 2042-37-7Name: 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.Name: 2-Bromobenzonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Reference of 4-Cyanobenzyl bromideIn 2021 ,《Structure-Based Design of Highly Potent Toll-like Receptor 7/8 Dual Agonists for Cancer Immunotherapy》 appeared in Journal of Medicinal Chemistry. The author of the article were Wang, Zhisong; Gao, Yan; He, Lei; Sun, Shuhao; Xia, Tingting; Hu, Lu; Yao, Licheng; Wang, Liangliang; Li, Dan; Shi, Hui; Liao, Xuebin. The article conveys some information:

Design and synthesis of a series of pyrido[3,2-d]pyrimidine-based toll-like receptor 7/8 dual agonists, e.g., I that exhibited potent and near-equivalent agonistic activities toward TLR7 and TLR8. In vitro, compounds significantly induced the secretion of IFN-α, IFN-γ, TNF-α, IL-1β, IL-12p40, and IP-10 in human peripheral blood mononuclear cell assays. In vivo, compounds significantly suppressed tumor growth in CT26 tumor-bearing mice by remodeling the tumor microenvironment. Addnl., compounds markedly improved the antitumor activity of PD-1/PD-L1 blockade. These results demonstrated that TLR7/8 agonists held great potential as single agents or in combination with PD-1/PD-L1 blockade for cancer immunotherapy.4-Cyanobenzyl bromide(cas: 17201-43-3Reference of 4-Cyanobenzyl bromide) was used in this study.

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.Reference of 4-Cyanobenzyl bromide

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Recommanded Product: 2-(3-Bromophenyl)acetonitrileIn 2020 ,《Synthesis and Antibacterial and Antifungal Activity of New Thieno[2,3-d]Pyrimidin-4(3H)-One Derivatives》 was published in Pharmaceutical Chemistry Journal. The article was written by Kahveci, B.; Dogan, I. S.; Mentese, E.; Sellitepe, H. E.; Kart, D.. The article contains the following contents:

A series of new 2-(4/3-substitutedbenzyl)thieno[2,3-d]pyrimidin-4(3H)-ones and 2-(4/3-substituted benzyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one derivatives I [R = 4-Me, 3-Me, 4-Cl, 3-Cl, 4-Br, 3-Br; R1 = R2 = H; R1R2 = (CH2)4] were synthesized for the first time by the reaction of corresponding 2-aminothiophene-3-carboxamide derivatives II and appropriate iminoester hydrochlorides RC6H4CH2C(OCH2CH3)=NH.HCl under suitable conditions. In these tests, compounds I [R = 4-Me, 3-Me, 4-Cl, 3-Cl, 4-Br, 3-Br; R1R2 = (CH2)4] showed higher antifungal activity than fluconazole against Candida fungus species. The 2-substituted thieno-[2,3-d]pyrimidin-4(3H)-ones I (R1 = R2 = H) showed better antibacterial activity than 2-substituted 5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one derivatives I [R1R2 = (CH2)4]. In the experiment, the researchers used many compounds, for example, 2-(3-Bromophenyl)acetonitrile(cas: 31938-07-5Recommanded Product: 2-(3-Bromophenyl)acetonitrile)

2-(3-Bromophenyl)acetonitrile(cas: 31938-07-5) has been used in the synthesis of a series of aminoethylbiphenyls, novel 5-HT7 receptor ligands or 2-(1-cyano-1-(3-bromophenyl))methylidene-3-phenylthiazolidine-4,5-dione.Recommanded Product: 2-(3-Bromophenyl)acetonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts