Tag: M.W=100-150

Shee, Maniklal published the artcileOrganophotoredox assisted cyanation of bromoarenes via silyl-radical-mediated bromine abstraction, Quality Control of 91-15-6, the main research area is organophotoredox catalyzed cyanation bromoarene silyl radical bromine abstraction.

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.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Quality Control of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nasrollahzadeh, Mahmoud published the artcileSynthesis, characterization and catalytic performance of Pd(II) complex immobilized on Fe3O4@SiO2 nanoparticles for the ligand-free cyanation of aryl halides using K4Fe(CN)6, Recommanded Product: Phthalonitrile, the main research area is reusable iron oxide supported palladium nanocatalyst preparation surface area; potassium ferrocyanate aryl halide reusable palladium nanocatalyst cyanation; aryl nitrile preparation green chem.

The preparation of a novel magnetic catalyst via immobilization of Pd(II)-N-benzyl-N-(4-bromophenyl)-5-amino-1H-tetrazole complex on the Fe3O4@SiO2 nanoparticles (NPs). The application of Fe3O4@SiO2 NPs supported Pd(II)-N-benzyl-N-(4-bromophenyl)-5-amino-1H-tetrazole complex [Fe3O4@SiO2-BAT-Pd(II)] nanocatalyst was described for the cyanation of aryl iodides and bromides to the corresponding aryl nitriles using potassium hexacyanoferrate(II) [K4Fe(CN)6] as a non-toxic and economic cyanating agent under ligand- and additive-free conditions. Some aryl nitriles were efficiently synthesized from the corresponding aryl bromides and iodides in the presence of Fe3O4@SiO2-BAT-Pd(II) nanocomplex. The core-shell nanocomplex demonstrated the superior catalytic performance for the synthesis of synthetically valuable aryl nitriles within good to excellent yields. This process eliminated the need to handle highly toxic metal cyanides and it was easily recovered and reused for six consecutive runs with no decreasing of its catalytic capability. Preparation of Pd(II) complex immobilized on Fe3O4@SiO2 nanoparticles [Fe3O4@SiO2-BAT-Pd(II) nanocomplex]. Characterization of Fe3O4@SiO2-BAT-Pd(II) nanocomplex using XRD, FT-IR, EDS, VSM, TEM and FESEM analyses. Catalytic cyanation of the various aryl halides with K4Fe(CN)6 under ligand-free conditions. The nanocomplex was recovered and isolated six times with no significant loss of its catalytic ability.

Applied Organometallic Chemistry published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Recommanded Product: Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Yan, Yonggang published the artcilePhotochemically Enabled, Ni-Catalyzed Cyanation of Aryl Halides, Recommanded Product: Phthalonitrile, the main research area is dicyanobenzene haloarene nickel catalyst photochem cyanation; aryl nitrile preparation.

A light-promoted Ni-catalyzed cyanation of aryl halides employing 1,4-dicyanobenzene as a cyanating agent was reported. A broad array of aryl bromides, chlorides and druglike mols. could be converted into their corresponding nitriles (65 examples). Mechanistic studies suggest that upon irradiation, the oxidative addition product Ni(II)(dtbbpy)(p-C6H4CN)(CN) underwent homolytic cleavage of the Ni-aryl bond to generate an aryl radical and a Ni(I)-CN species, the latter of which initiated subsequent cyanation reactions.

Organic Letters published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Recommanded Product: Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Niknam, Esmaeil published the artcilePalladium-Catalyzed Cyanation of Aryl Halides Using Formamide and Cyanuric Chloride as a New “”CN”” Source, Recommanded Product: 2-Aminobenzonitrile(Flakes or Chunks), the main research area is aryl halide cyanuric chloride formamide palladium cyanation catalyst; cyanide aryl preparation.

A new source of “”CN”” employing formamide and cyanuric chloride is introduced for the cyanation reactions. The treatment of formamide and 2,4,6-trichloro-1,3,5-triazine (TCT; cyanuric chloride) afforded an efficient cyanating agent which it can be used as a nontoxic, readily available, and non-expensive reagent in the cyanation transformations. In this study, palladium-catalyzed cyanation of aryl halides was successfully accomplished using this new “”CN”” source in high yields.

European Journal of Organic Chemistry published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Recommanded Product: 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Saikia, Rakhee published the artcileAn Insight into Nitromethane as an Organic Nitrile Alternative Source towards the Synthesis of Aryl Nitriles, Product Details of C7H6N2, the main research area is nitromethane aryl halide copper catalyst cyanation DFT transition state; aryl nitrile preparation.

Directed by an unusual in situ reduction of CuII, our protocol is a simple CuI-mediated synthesis of aryl nitriles, with inexpensive and readily available nitromethane as the cyanating source, in moderate to good yields. Exhibiting a wide substrate scope, the method involves simple reaction conditions, is additive free with low catalyst loading. The plausible mechanism of cyanation of aryl halides is elucidated by a congregation of three cycles, namely the in situ reduction of CuII species by nitromethane, generation of HCN species from nitromethane and a regular organometallic pathway which releases the nitrile derivative The detail of the mechanism of generation of CN- from nitromethane is computationally validated. Our protocol holds the distinction of involving a rarely encountered CuI catalytic species as well as facile in situ generation of nucleophilic CN- to yield synthetically useful aromatic nitriles.

European Journal of Organic Chemistry published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Product Details of C7H6N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Thakore, Ruchita R. published the artcileLate-stage Pd-catalyzed Cyanations of Aryl/Heteroaryl Halides in Aqueous Micellar Media, Application of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is haloarene zinc cyanide palladium catalyst cyanation green chem; heterohaloarene zinc cyanide palladium catalyst cyanation green chem; aryl cyanide preparation; heteroaryl cyanide preparation.

New technol. was described that enables late stage ppm Pd-catalyzed cyanations of highly complex mols., as well as a wide variety of aryl and heteroaryl halides possessing sensitive functional groups. These reactions are efficient in water containing nanomicelles, formed from a com. available and inexpensive surfactant. The implications for advancing drug synthesis and discovery are apparent.

ChemCatChem published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Application of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Malviya, Novina published the artcileAmino-Acid-Derived Emerging Sensor for Detection of S 2 Ion and MeOH Percentage in MeOH-H2O Mixture, Application In Synthesis of 1885-29-6, the main research area is aminoacid emerging sensor detection mixture.

Designing fluorescent probes and its metal-organic materials getting attention due to their fascinating utility in several fields from material to biol. Here, we synthesized N-Ph glycine substituted four new fluorescent probes viz. (2-cyanophenyl)glycine [HL1], (5-chloro-2-cyanophenyl)glycine [HL2], (4-chloro-2-cyanophenyl)glycine [HL3], (2-cyano-3-fluorophenyl)glycine [HL4] and investigated its properties through spectroscopic techniques. Out of all probes, HL1 displayed non-emissive nature in the presence of water and uniquely detect the percentage of methanol in the methanol-water mixture or vice-versa out of the different solvent-water mixture with the help of fluorometric technique. Furthermore, cobalt complex [Co(L1)(phen)2]ClO4 (C1) with distorted octahedral geometry has been synthesized by using HL1. The emissive nature of the complex C1 was further utilized for the selective sensing of S2- ion in the DMSO-water mixture by quenching the fluorescence with a detection limit of 4.8 μM. The selective solvent percentage detection and anion sensing illustrate the potential efficacy of the designed sensors for anal. intent.

ChemistrySelect published new progress about Amino acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Application In Synthesis of 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Sai Kumar, Gobbilla published the artcileHydroboration of nitriles, esters, and amides catalyzed by simple neosilyllithium, Name: Picolinonitrile, the main research area is hydroboration nitrile ester amide preparation aralkyl amine alc; lithium organometallic catalyst hydroboration reduction nitrile ester amide; crystal mol optimized structure picolyl diborylamine.

We present here an efficient method for the hydroboration of organic nitriles, carboxylic esters, and carboxamides with pinacolborane (HBpin) using an alkali metal catalyst, neosilyllithium (LiCH2SiMe3), in neat reaction conditions. The reactions were accomplished with efficient catalytic reactivity and demonstrated by neosilyllithium at room temperature, in solvent-free condition, to afford a high yield of the corresponding N-boryl amines, boryl ethers, and amine hydrochlorides. The protocol for the catalytic reaction presented in this paper is simple and efficient, with diverse substrate scope for nitriles, carboxylic esters, and carboxamides showing excellent functional group tolerance. DLPNO-CCSD(T) calculations were also performed, showing that the hydroboration of nitriles catalyzed by neosilyllithium occurs through the pre-coordination of the nitrile at Lewis acid lithium followed by hydride migration from the B-H entity.

Polyhedron published new progress about Alkali metal compounds Role: CAT (Catalyst Use), USES (Uses) (organometallic). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Name: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Palmeri, M. published the artcileDominant lactic acid bacteria in naturally fermented milks from Messinese goat’s breed, Synthetic Route of 100-70-9, the main research area is lactic acid bacteria fermented milk Messinese goat breed.

Background: Lactic Acid Bacteria (LAB) are an important group of microorganisms responsible for the fermentation dairy products. This study was done to identify the dominant lactic acid bacteria in naturally fermented milks from Messinese goat’s breed. Methods: Eighteen individual raw milk samples collected from Messinese goat’s breed were acidified at pH 5.20 and left to spontaneously ferment at 37°C for 4 days. All samples were analyzed for rod- and coccus-shaped LAB. Also, all presumptive LAB were isolated and differentiated according to their phenotypic properties and genetic polymorphisms and then identified by sequencing the 16S rRNA gene. Data were statistically analyzed using SAS 9.2 software. Results: Levels of coccus- and rod-shaped LAB were in the range of 1.78-7.10 log and 1.00-7.09 log colony forming unit/mL, resp. The microbiol. counts on the two different growth media were significantly (p<0.05) different among the samples. Among 12 identified strains, the most numerous one was Enterococcus hirae (n = 4), followed by E. faecium (n = 3), while the other species (E. durans, E. faecalis, E. lactis, Lactococcus lactis, and Leuconostoc lactis) included one strain each. Conclusion: The major group identified in this study was mainly represented by members of Enterococcus genus. Although Enterococcus spp. are related to the typicality of some traditional fermented dairy products, this study highlights the need for risk assessment of pathogenic enterococci species for the consumers. Journal of Food Quality and Hazards Control published new progress about 16S rRNA Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Synthetic Route of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Kodama, Susumu published the artcileAssociation between in vitro nuclear receptor-activating profiles of chemical compounds and their in vivo hepatotoxicity in rats, Safety of Phthalonitrile, the main research area is chem compound nuclear receptor activating profile hepatotoxicity.

The liver plays critical roles to maintain homeostasis of living organisms and is also a major target organ of chem. toxicity. Meanwhile, nuclear receptors (NRs) are known to regulate major liver functions and also as a critical target for hepatotoxic compounds In this study, we established mammalian one-hybrid assay systems for five rat-derived NRs, namely PXR, PPARα, LXRα, FXR and RXRα, and evaluated a total of 326 compounds for their NR-activating profiles. Then, we assessed the association between their NR-activating profile and hepatotoxic endpoints in repeated-dose toxicity data of male rats from Hazard Evaluation Support System. In the in vitro cell-based assays, 68, 38, 20, 17 and 17 compounds were identified as positives for PXR, PPARα, LXRα, FXR and RXRα, resp. The association analyses demonstrated that the PXR-pos. compounds showed high frequency of endpoints related to liver hypertrophy, such as centrilobular hepatocellular hypertrophy, suggesting that PXR activation is involved in chem.-induced liver hypertrophy in rats. It is intriguing to note that the PXR-pos. compounds also showed statistically significant associations with both prolonged activated partial thromboplastin time and prolonged prothrombin time, suggesting a possible involvement of PXR in the regulation of blood clotting factors. Collectively, our approach may be useful for discovering new functions of NRs as well as understanding the complex mechanism for hepatotoxicity caused by chem. compounds

Journal of Toxicological Sciences published new progress about Albumins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts