Author: Jessica.F

Zhang, Linlin; Qi, Lin; Chen, Jia-Min; Dong, Wei; Fang, Zhuo-Yue; Cao, Tong-Yang; Li, Wei; Wang, Li-Jing published their research in Chemical Communications (Cambridge, United Kingdom) in 2021. The article was titled 《Preparation of selenyl 1,3-oxazines via PhICl2/Cu2O-promoted aminoselenation of O-homoallyl benzimidates with diselenides》.Computed Properties of C7H4FN The article contains the following contents:

A practical electrophilic aminoselenation of O-homoallyl benzimidate with diselenides promoted by PhICl2/Cu2O had been developed. The easily available and stable diselenides were used as selenium sources. Various selenyl 1,3-oxazines I [Ar = Ph, 4-MeC6H4, 2-naphthyl, etc.; R1 = H, Me; R2 = H, Ph; R3 = Me, n-Bu, Ph, etc.], which were important frameworks in medicinal and biol. chem., were easily obtained in moderate to good yields for the first time. Easy scaleup and scalability made this method attractive for the preparation of other valuable organoselenides. The experimental process involved the reaction of 4-Fluorobenzonitrile(cas: 1194-02-1Computed Properties of C7H4FN)

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

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In 2022,Zhu, Da-Liang; Jiang, Shan; Young, David James; Wu, Qi; Li, Hai-Yan; Li, Hong-Xi published an article in Chemical Communications (Cambridge, United Kingdom). The title of the article was 《Visible-light-driven C(sp2)-H arylation of phenols with arylbromides enabled by electron donor-acceptor excitation》.Related Products of 2042-37-7 The author mentioned the following in the article:

A catalyst-free visible-light-driven C(sp2)-H arylation of unprotected phenols ROH (R = Ph, naphthalen-2-yl, 3,5-dibromophenyl, etc.) with arylbromides R1Br (R1 = 4-cyclopropanecarbonylbenzen-1-yl, 2-cyanobenzen-1-yl, 3-cyano-5-(trifluoromethyl)phenyl, etc.) to give 2-arylated phenols RR1 have been developed. This reaction proceeds through the excitation of an electron donor-acceptor complex between a phenolate and arylbromide, electron transfer, and debrominative C(sp2)-C(sp2) coupling. The results came from multiple reactions, including the reaction of 2-Bromobenzonitrile(cas: 2042-37-7Related Products 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. 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.Related Products of 2042-37-7

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Category: nitriles-buliding-blocksIn 2020 ,《Synthesis, Characterization, Antimicrobial Activity and Anticancer of Some New Pyrazolo[1,5-a]pyrimidines and Pyrazolo[5,1-c]1,2,4-triazines》 appeared in Medicinal Chemistry (Sharjah, United Arab Emirates). The author of the article were Hosny, Mona A.; Zaki, Yasser H.; Mokbel, Wafaa A.; Abdelhamid, Abdou O.. The article conveys some information:

Background: Pyrazole and its derivatives are known to exhibit significant biol. and pharmacol. activities such as anticancer, anti-inflammatory, antioxidant, antibacterial, analgesic, antiviral, antimicrobial, antifungal, anti-glycemic, antiamoebic, and antidepressive. Considering the immense biol. properties, pyrazole is one of the most widely studied nitrogen- containing heterocyclic nuclei. Fused pyrazole derivatives are composed of the pyrazole nucleus attached to other heterocyclic moieties. Objective: The objective of this article is the synthesis of some new pyrazolo[1,5-a]pyrimidine and pyrazolo[5,1-c]1,2,4-triazine derivatives with potential anticancer and antimicrobial activities. Methods: The in vitro growth inhibitory rates (%) and inhibitory growth activity (as measured by IC50) of the newly synthesized compounds were determined against the MCF-7 human breast carcinoma cell line in comparison with the well-known anticancer drug doxorubicin as the standard, using the MTT viability assay. The data generated were used to plot a dose-response curve from which the concentration (μM) of tested compounds required to kill 50% of the cell population (IC50) was determined Cytotoxic activity was expressed as the mean IC50 of three independent experiments The difference between inhibitory activities of all compounds with different concentrations was statistically significant p < 0.001. All compounds were structurally characterized by different spectroscopic techniques EI-MS, 1H-NMR, and 13C-NMR, and evaluated for their anticancer and antimicrobial activities (antibacterial and antifungal). Results: Several pyrazolo[1,5-a]pyrimidine derivatives were synthesized from the reaction of 2-(4- (5-amino-1H-pyrazol-3-yl)phenyl)-1H-indene-1,3(2H)-dione with the appropriate active methylene compounds in boiling ethanol. Also, pyrazolo[5,1-c]triazines were obtained through the reaction of 2-(4-(5-(chlorodiazenyl)-1H-pyrazol-3-yl)phenyl)-1H-indene-1,3(2H)-dione with various active methylene compounds in ethanol containing sodium acetate at 0-5 °C. The structures of the newly synthesized compounds were elucidated on the basis of elemental anal., spectral data, and alternative synthetic routes whenever possible. The newly synthesized compounds were evaluated for their antitumor activity against a breast cancer cell line (MCF-7) and a human colon cancer cell line (HCT-116). The results revealed that the tested compounds showed high variation in the inhibitory growth rates and activities against the tested tumor cell lines. All newly synthesized compounds screen towards microorganisms e.g. Gram-neg. bacteria, Gram-pos. bacteria, and Fungi. Conclusion: 2-(4-(5-Amino-1H-pyrazol-3-yl)phenyl)isoindoline-1,3-dione proved to be a useful precursor for the synthesis of various pyrazolo[1,5-a]pyrimidine and pyrazolo[5,1-c]-1,2,4-triazines. The structures of the newly synthesized compounds were confirmed by spectral data and elemental analyses. The newly synthesized compounds were tested in vitro against the MCF-7, HCT-116 human cancer cell line and compared with doxorubicin as the standard, using the MTT viability assay. Most of the tested compounds were found to have moderate to high anticancer activity. The results came from multiple reactions, including the reaction of 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

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Synthetic Route of C43H30F2N4On November 14, 2018 ,《A Toolbox Approach To Construct Broadly Applicable Metal-Free Catalysts for Photoredox Chemistry: Deliberate Tuning of Redox Potentials and Importance of Halogens in Donor-Acceptor Cyanoarenes》 appeared in Journal of the American Chemical Society. The author of the article were Speckmeier, Elisabeth; Fischer, Tillmann G.; Zeitler, Kirsten. The article conveys some information:

The targeted choice of specific photocatalysts has been shown to play a critical role for the successful realization of challenging photoredox catalytic transformations. Herein, we demonstrate the successful implementation of a rational design strategy for a series of deliberate structural manipulations of cyanoarene-based, purely organic donor-acceptor photocatalysts, using 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) as a starting point. Systematic modifications of both the donor substituents as well as the acceptors’ mol. core allowed us to identify strongly oxidizing as well as strongly reducing catalysts (e.g., for an unprecedented detriflation of unactivated naphthol triflate), which addnl. offer remarkably balanced redox potentials with predictable trends. Especially halogen arene core substitutions are instrumental for our targeted alterations of the catalysts’ redox properties. Based on their preeminent electrochem. and photophys. characteristics, all novel, purely organic photoredox catalysts were evaluated in three challenging, mechanistically distinct classes of benchmark reactions (either requiring balanced, highly oxidizing or strongly reducing properties) to demonstrate their enormous potential as customizable photocatalysts, that outperform and complement prevailing typical best photocatalysts. In the experiment, the researchers used 2,4,6-Tris(diphenylamino)-3,5-difluorobenzonitrile(cas: 1403850-00-9Synthetic Route of C43H30F2N4)

2,4,6-Tris(diphenylamino)-3,5-difluorobenzonitrile(cas: 1403850-00-9) is cyanoarene-based donor-acceptor photocatalyst developed by the Zeitler group. While this catalyst has a balanced redox profile, allowing for its use in a variety of transformations, it stands out as the most reducing catalyst of the family.Synthetic Route of C43H30F2N4

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The author of 《Dissociation of naphthoic acids in non-aqueous media. Comparison of benzene and naphthalene skeletons》 were Parik, Patrik; Wolfova, Jitka; Ludwig, Miroslav. And the article was published in Collection of Czechoslovak Chemical Communications in 2000. Application In Synthesis of 5-Amino-1-naphthonitrile The author mentioned the following in the article:

Seven monosubstituted 1-naphthoic acids were synthesized by new or modified procedures, and their dissociation constants were measured potentiometrically at 25° in MeOH, MeCN, DMF, and pyridine. Dissociation constants of these along with 13 substituted 1-naphthoic acids and twenty-five substituted 2-naphthoic acids previously studied were measured at 25° in EtOH and DMSO. The pKKA values of 3- and 4-substituted 1-naphthoic acids were treated by simple linear regression and principal component anal., and the results were used for comparison of model compounds and of corresponding 3- and 4-substituted benzoic acids with the aim of comparison of benzene and naphthalene skeletons. It was found, the 3 and 4 positions of the 1-naphthyl system can roughly be compared with the meta and para positions of benzene, resp. The experimental part of the paper was very detailed, including the reaction process of 5-Amino-1-naphthonitrile(cas: 72016-73-0Application In Synthesis of 5-Amino-1-naphthonitrile)

5-Amino-1-naphthonitrile(cas: 72016-73-0) belongs to anime. Halogenation, in which one or more hydrogen atoms of an amine is replaced by a halogen atom, occurs with chlorine, bromine, and iodine, as well as with some other reagents, notably hypochlorous acid (HClO). With primary amines the reaction proceeds in two stages, producing N-chloro- and N,N-dichloro-amines, RNHCl and RNCl2, respectively. With tertiary amines, an alkyl group may be displaced by a halogen.Application In Synthesis of 5-Amino-1-naphthonitrile

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In 2007,Paillet-Loilier, Magalie; Fabis, Frederic; Lepailleur, Alban; Bureau, Ronan; Butt-Gueulle, Sabrina; Dauphin, Francois; Lesnard, Aurelien; Delarue, Catherine; Vaudry, Hubert; Rault, Sylvain published 《Novel aminoethylbiphenyls as 5-HT7 receptor ligands》.Bioorganic & Medicinal Chemistry Letters published the findings.Product Details of 31938-07-5 The information in the text is summarized as follows:

The synthesis of a series of aminoethylbiphenyls, e.g., I, as novel 5-HT7 receptor ligands is described. The novel derivatives exhibit high affinity for the 5-HT7 receptor with selectivity toward 5-HT1A receptor. In the experiment, the researchers used many compounds, for example, 2-(3-Bromophenyl)acetonitrile(cas: 31938-07-5Product Details of 31938-07-5)

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.Product Details of 31938-07-5

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《Organophotoredox assisted cyanation of bromoarenes via silyl-radical-mediated bromine abstraction》 was written by Shee, Maniklal; Shah, Sk. Sheriff; Singh, N. D. Pradeep. Synthetic Route of C7H4FN And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2020. The article conveys some information:

The insertion of a nitrile (-CN) group into arenes through the direct functionalization of the C(sp2)-Br bond is a challenging reaction. Herein, we report an organophotoredox method for the cyanation of aryl bromides using the organic photoredox catalyst 4CzIPN (1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene) and tosyl cyanide (TsCN) as the nitrile source. A photogenerated silyl radical, via a single electron transfer (SET) mechanism, was employed to abstract bromine from aryl bromide to provide an aryl radical, which was concomitantly intercepted by TsCN to afford the aromatic nitrile. A range of substrates containing electron-donating and -withdrawing groups was demonstrated to undergo cyanation at room temperature in good yields. Thus, e.g., Me 4-bromobenzoate → Me 4-cyanobenzoate (71%) employing 4CzIPN, TsCN, (TMS)3SiOH as silyl radical source, K3PO4 as base, acetone as solvent and irradiation from blue LED. The experimental part of the paper was very detailed, including the reaction process of 4-Fluorobenzonitrile(cas: 1194-02-1Synthetic Route of C7H4FN)

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.Synthetic Route of C7H4FN

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Yang, Ren-Yin; Wang, Hui; Xu, Bo published their research in Chemical Communications (Cambridge, United Kingdom) in 2021. The article was titled 《Base promoted gem-difluoroolefination of alkyl triflones》.Recommanded Product: 4-Cyanobenzyl bromide The article contains the following contents:

A new synthesis of gem-difluoroalkenes ArC(R)=CF2 [Ar = 4-bromophenyl, naphthalen-2-yl, 5-(methoxycarbonyl)thiophen-2-yl, etc.; R = prop-2-en-1-yl, 3-phenylprop-2-yn-1-yl, (4-methylphenyl)methyl, etc.] from readily available alkyl triflones ArCH(R)S(O)2CF3 and difluorocarbene precursors such as TMSCF2Br has been reported. The reaction, regardless of electronic effect, gives gem-difluoroalkenes ArC(R)=CF2 in good to excellent yields. The mechanism may involve deprotonation of triflones, nucleophilic addition, and the elimination of SO2CF3. In the experiment, the researchers used 4-Cyanobenzyl bromide(cas: 17201-43-3Recommanded Product: 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.Recommanded Product: 4-Cyanobenzyl bromide

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Computed Properties of C8H6BrNIn 2019 ,《Self-assembly of a “”cationic-cage”” via the formation of Ag-carbene bonds followed by imine condensation》 was published in Chemical Communications (Cambridge, United Kingdom). The article was written by Modak, Ritwik; Mondal, Bijnaneswar; Howlader, Prodip; Mukherjee, Partha Sarathi. The article contains the following contents:

A new strategy for the synthesis of a “”cationic-cage”” (CC-Ag) has been developed via metal-carbene (M-CNHC) bond formation followed by imine bond condensation. Reaction of a trigonal trisimidazolium salt H3L(PF6)3 functionalized with three flexible N-phenyl-aldehyde pendants with silver oxide yielded a trinuclear tricationic organometallic cage (OC-Ag). Subsequent treatment of the organometallic cage (OC-Ag) with 1,4-diaminobutane links the two tris-NHC ligands via imine bond condensation, which thus generates a 3D ‘cationic-cage’ (CC-Ag). Furthermore, post-synthetic replacement of the Ag(I) with Au(I) leading to the formation of CC-Au was achieved via trans-metalation, with the retention of the mol. architecture. In the experiment, the researchers used many compounds, for example, 4-Cyanobenzyl bromide(cas: 17201-43-3Computed Properties of C8H6BrN)

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.Computed Properties of C8H6BrN

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In 2014,Mentese, Emre; Bektas, Hakan; Uelker, Serdar; Bekircan, Olcay; Kahveci, Bahittin published 《Microwave-assisted synthesis of new benzimidazole derivatives with lipase inhibition activity》.Journal of Enzyme Inhibition and Medicinal Chemistry published the findings.Product Details of 31938-07-5 The information in the text is summarized as follows:

A practical protocol was used for the synthesis of benzimidazoles. The reaction of Et phenylacetimidate hydrochlorides with 4,5-dichloro-1,2-phenylenediamine under microwave irradiation leads to the benzimidazole derivatives with good yields and in short reaction times. The corresponding ester and hydrazide derivatives were synthesized subsequently under microwave irradiation with good yields. All compounds were evaluated with regard to pancreatic lipase activity and benzimidazoles I (R = H, R1 = Br; R = Br, R1 = H) and II (R = H, CH2CO2Me) showed lipase inhibition at various concentrations2-(3-Bromophenyl)acetonitrile(cas: 31938-07-5Product Details of 31938-07-5) was used in this study.

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.Product Details of 31938-07-5

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts