Nitriles-buliding-blocks

Hui, Heping published the artcileStructure characterization, antioxidant and hypoglycemic activity of an arabinogalactoglucan from Scutellaria baicalensis Georgi, Quality Control of 91-15-6, the main research area is Scutellaria arabinogalactoglucan SBP1 antioxidant hypoglycemic agent; Antioxidant and hypoglycemic activity; Arabinogalactoglucan; Scutellaria baicalensis Georgi; Structure characterization.

An arabinogalactoglucan SBP-1 was purified from Scutellaria baicalensis by DEAE-52 and Sephadex G-100 column chromatog. The structure of SBP-1 was characterized using HPLC, IR, GC-MS, 1-D and 2-D NMR. The antioxidant and hypoglycemic activity of SBP-1 was investigated by vitro evaluation. The results showed that SBP-1 was composed of arabinose, glucose and galactose in a molar ratio of 1.0:5.9:1.1 and its Mw were 91,156. The backbone of SBP-1 was mainly composed of repeating →1-α-D-Glcp-(4 → 1)-α-D-Glcp-(3 → 1)-α-D-Galp-(4→. The braches were composed of →2)-α-L-Araf-(1→, →3)-β-D-Glcp-1→ and α-D-Glcp-1→, which mainly substituted at O-6 of Glc, while terminal residue was α-L-Araf-1→ and α-D-Glcp-1→. Vitro bioactivity showed that SBP-1 had dose-dependent antioxidant and hypoglycemic activity. The scavenging rate on ABTS, DPPH, hydroxyl and superoxide radicals was all beyond 60% as SBP-1 concentration reached 4 mg/mL, and the inhibition rate on α-glucosidase and α-amylase was both more than 80%, which was closely to that of acarbose.

International Journal of Biological Macromolecules published new progress about Antidiabetic agents. 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

Panomsuwan, Gasidit published the artcileIn situ solution plasma synthesis of silver nanoparticles supported on nitrogen-doped carbons with enhanced oxygen reduction activity, Category: nitriles-buliding-blocks, the main research area is silver nanoparticle nitrogen doped carbon electrocatalyst plasma synthesis; oxygen reduction reaction silver nanoparticle nitrogen doped carbon electrocatalyst.

Silver nanoparticles supported on nitrogen-doped carbons (Ag/NC) were in situ synthesized by a solution plasma process. In the solution plasma, Ag nanoparticles were produced via the sputtering of Ag electrode, while the NC supports were simultaneously synthesized from 2-cyanopyridine (C6H4N2). The results of the characterization show that Ag nanoparticles had good crystallinity and the NC supports possessed an amorphous structure. The oxygen reduction reaction (ORR) catalyzed on Ag/NC proceeded via the co-existence of two and four-electron pathways in alk. solution, with the four-electron pathway being found to be more dominant. An enhanced ORR activity of Ag/NC was attributed to the synergistic effect of Ag nanoparticles and NC supports. Moreover, Ag/NC exhibited long-term durability and high resistance to methanol oxidation in comparison with the com. Pt/C catalyst.

Materials Letters published new progress about Amorphous structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Category: nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Wang, Wenbo published the artcileTricycloquinazoline-containing 3D conjugated microporous polymers and 2D covalent quinazoline networks: microstructure and conductivity, Synthetic Route of 1885-29-6, the main research area is tricycloquinazoline conjugated microporous polymer covalent quinazoline network microstructure conductivity; gas adsorption hydrogen evolution reaction electrocatalyst.

Conjugated microporous polymers (CMPs) and covalent triazine frameworks (CTFs) with conjugated linkages and nanochannels have been showcased as a new platform in extensive fields. Here, by tuning the geometry of the N-rich skeleton tricycloquinazoline (TQ) unit, isomers of the 3D amorphous conjugated microporous polymer (TQ-CMP) and 2D laminar covalent quinazoline network (TQ-CQN) are synthesized. The derived diverse microstructure and elec. conductivity related to the applications of gas adsorption and the hydrogen evolution reaction (HER) are systematically discussed. TQ-CMP fabricated with an internal crosslinking network reveals a notable uptake of 25.6 wt% CO2 and of 2.91 wt% CH4 at 273 K and 1 bar, higher than most reported POP materials, which could be attributed to the higher BET surface area (781.0 m2 g-1) and dispersed pore size (1.1 nm to 13.1 nm) for guest mol. absorption. In contrast, both the modulated electronic structure of the precise π-conjugate planes and the vertically ordered one-dimensional channels endow TQ-CQN with more built-in catalytic sites and rapid electron transmission for the HER. Without any noble metal doping, the excellent catalytic activity and faster reaction kinetics of TQ-CQN are epitomized by the achieved lower overpotential of 80 mV and the Tafel slope of 40 mV dec-1.

Polymer Chemistry published new progress about Adsorption enthalpy. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Synthetic Route of 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Qiao, Baokun published the artcileOrganocatalytic Asymmetric Michael Addition of 5H-Oxazol-4-ones to Nitroolefins, Category: nitriles-buliding-blocks, the publication is Organic Letters (2013), 15(10), 2358-2361, database is CAplus and MEDLINE.

The first organocatalytic asym. Michael addition of 5H-oxazol-4-ones to nitroolefins has been developed. In the presence of easily prepared L-tert-leucine-derived tertiary amine/thiourea catalyst I, the Michael addition of 5H-oxazol-4-ones to nitroolefins proceeded in an excellent diastereo- and enantioselective manner (up to 99% ee and >19:1 dr). The Michael adducts obtained are valuable precursors for the synthesis of chiral α-alkyl-α-hydroxy carboxylic acid derivatives, which represent a series of versatile building blocks in many biol. active compounds

Organic Letters published new progress about 5153-73-1. 5153-73-1 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Alkenyl,Nitro Compound,Benzene, name is (E)-4-(2-Nitrovinyl)benzonitrile, and the molecular formula is C9H6N2O2, Category: nitriles-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Autade, Snehalata B. published the artcileSulfated tungstate a heterogeneous acid catalyst for synthesis of 4-aryl-NH-1,2,3-triazoles by 1,3-dipolar cycloaddition of nitroolefins with NaN₃, Quality Control of 5153-73-1, the publication is Synthetic Communications (2019), 49(15), 1947-1956, database is CAplus.

A facile and new method for the synthesis of 4-aryl-NH-1,2,3-triazoles from nitroolefins and NaN₃ by 1,3-dipolar cycloaddition reaction, employing a mild solid inorganic acid sulfated tungstate as a heterogeneous catalyst was developed. The protocol emphasized broad substrate scope with many functionalities, less reaction time, stability to open air, easy work-up, and with good to excellent yields.

Synthetic Communications published new progress about 5153-73-1. 5153-73-1 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Alkenyl,Nitro Compound,Benzene, name is (E)-4-(2-Nitrovinyl)benzonitrile, and the molecular formula is C9H6N2O2, Quality Control of 5153-73-1.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Hemmaragala, Nanjundaswamy Marishetty published the artcileFunctionalized Silver Nanoparticle Catalyzed [3+2] Cycloaddition Reaction: Greener Route to Substituted-1,2,3-triazolines, Application of (E)-4-(2-Nitrovinyl)benzonitrile, the publication is Catalysis Letters (2016), 146(2), 464-473, database is CAplus.

The [3+2] cycloaddition reaction between nitroolefins and alkyl/aryl azides was studied using functionalized silver nanoparticles (FnAgNPs) of average diameter 23 ± 1 nm as catalyst produced by the plant extract Protorhus longifolia. FnAgNPs was found to catalyze the reactions efficiently yielding a series of 1,5-disubstituted-1,2,3-triazolines, e.g. I, under mild reaction conditions with no side products. The catalytic activity of FnAgNPs was compared with naked AgNPs and FnAgNPs found to be very effective. Except solvents, the whole experiments do not require any chem./reagent which makes the process green.

Catalysis Letters published new progress about 5153-73-1. 5153-73-1 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Alkenyl,Nitro Compound,Benzene, name is (E)-4-(2-Nitrovinyl)benzonitrile, and the molecular formula is C9H6N2O2, Application of (E)-4-(2-Nitrovinyl)benzonitrile.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Taylor, Edward C. published the artcilePteridines. XXXI. New and unequivocal synthesis of isoxanthopterin-6-carboxylic acid (Cyprino-Pourpre B), SDS of cas: 5098-14-6, the publication is Tetrahedron Letters (1973), 2093-5, database is CAplus.

Condensation of HC(CN)2NH2 with HON:CHCOCH:NOH gave 2-amino-3-cyano-5-oximinomethylpyrazine 1-oxide which cyclized with guanidine to the pteridine oxide (I). Heating I in POCl3-DMF gave the chloronitrile (II) which under reflux in aqueous NaOH gave isoxanthopterin-6-carboxylic acid (III).

Tetrahedron Letters published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C12H17NS2, SDS of cas: 5098-14-6.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Perciner, Hulya published the artcileA study on antiviral 2-(α-hydroxybenzyl)benzimidazole derivatives, Application of 2-(2-Chlorophenyl)-2-hydroxyacetonitrile, the publication is Journal of Faculty of Pharmacy of Gazi University (1990), 7(2), 125-40, database is CAplus.

Title compounds I (R = H, Cl, NO₂; R¹ = H, 4-Cl, 2-Cl, 4-F, 2-F, 4-Me) were prepared by cyclocondensation of o-phenylenediamines 1,2-(NH₂)₂C₆H₃R-4 with either DL-mandelic acid or R¹C₆H₄CH(OH)CN. I were tested as virucides against Herpes Simplex-1 (HSV-1) and Coxsackie B virus (CBV-3). All were significantly active against CBV-3 and I (R = R¹ = H) was the most active against HSV-1 compared to amantadine as a reference

Journal of Faculty of Pharmacy of Gazi University published new progress about 13312-84-0. 13312-84-0 belongs to nitriles-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene,Alcohol,Benzene Compounds, name is 2-(2-Chlorophenyl)-2-hydroxyacetonitrile, and the molecular formula is C8H6ClNO, Application of 2-(2-Chlorophenyl)-2-hydroxyacetonitrile.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts