Author: Jessica.F

Odani, Riko published the artcileCopper-Mediated C6-Selective Dehydrogenative Heteroarylation of 2-Pyridones with 1,3-Azoles, Safety of 4-(5-Oxazolyl)benzonitrile, the main research area is heteroarylpyridine preparation; pyridone azole heteroarylation copper; CH cleavage; arylation; copper; pyridones; synthetic methods.

A copper-mediated C6-selective dehydrogenative heteroarylation of 2-pyridones with 1,3-azoles has been developed. The reaction proceeded smoothly by two fold C-H cleavage even in the absence of noble-metal catalysts. The observed site selectivity was directed by a pyridyl substituent on the nitrogen atom of the pyridone ring. This directing group was readily removed after the coupling event, thus leading to 2-pyridone derivatives with a free N-H group. Moreover, in some cases, catalytic turnover of the Cu salt was also possible with the ideal terminal oxidant: mol. oxygen in air.

Angewandte Chemie, International Edition published new progress about Heteroarylation (dehydrogenative). 87150-13-8 belongs to class nitriles-buliding-blocks, name is 4-(5-Oxazolyl)benzonitrile, and the molecular formula is C10H6N2O, Safety of 4-(5-Oxazolyl)benzonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Plante, Jeffrey P. published the artcileShape-selective fluorescent sensing ensemble using a tweezer-type metalloreceptor, Application In Synthesis of 263389-54-4, the main research area is heteroaromatic shape selective fluorescent sensing bisimidazole pyridine derived metalloreceptor; tweezer type copper bisimidazole pyridine derived metalloreceptor fluorescent sensor.

A fluorescent sensing ensemble for pyridine-derived compounds is described. The receptor portion of the ensemble was prepared from a bisimidazole pyridine which coordinates copper to form a well-defined cavity. Small heteroaromatic guests such as adenine bind strongly in the cavity. The fluorescent response is provided by a dye which is coordinated to the receptor and quenched by the metal ion. The dye is released upon guest binding providing up to 25-fold fluorescence increases.

Organic Letters published new progress about Fluorescence. 263389-54-4 belongs to class nitriles-buliding-blocks, name is a-Tosyl-(4-methoxybenzyl) isocyanide, and the molecular formula is C16H15NO3S, Application In Synthesis of 263389-54-4.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Mills, L. Reginald published the artcileDesign of an Electron-Withdrawing Benzonitrile Ligand for Ni-Catalyzed Cross-Coupling Involving Tertiary Nucleophiles, Application In Synthesis of 91-15-6, the main research area is quaternary aryl nitrile synthesis; benzonitrile ligand nickel catalyzed cross coupling tertiary nucleophile; safety cyanide.

The design of new ligands for cross-coupling is essential for developing new catalytic reactions that access valuable products such as pharmaceuticals. In this report, we exploit the reactivity of nitrile-containing additives in Ni catalysis to design a benzonitrile-containing ligand for cross-coupling involving tertiary nucleophiles. Kinetic and Hammett studies are used to elucidate the role of the optimized ligand, which demonstrate that the benzonitrile moiety acts as an electron-acceptor to promote reductive elimination over β-hydride elimination and stabilize low-valent Ni. With these conditions, a protocol for decyanation-metalation and Ni-catalyzed arylation is conducted, enabling access to quaternary α-arylnitriles from disubstituted malononitriles. Safety: cyanide handling.

Journal of the American Chemical Society published new progress about Arylation. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Application In Synthesis of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Kamal, Arsala published the artcileVisible Light-Driven Synthesis of Amine-Sulfonate Salt Derivatives: A Step towards Green Approach, Related Products of nitriles-buliding-blocks, the main research area is amine sulfonate salt preparation green chem visible light.

In this work, a novel strategy for the straightforward visible-light-driven synthesis of biol. active, industrially important, and stable amine-sulfonate salts have been reported from p-toluenesulfonic acid and amines, which provide extremely high yield without side product formation. The reaction was performed without catalyst under visible light irradiation and had an excellent functional group tolerance. The structure of the prepared compounds were confirmed through 1H NMR, 13C NMR, and mass spectroscopic studies, and similarly, the mol. structure of compound 3b was established through single-crystal XRD-anal. The advantages of this method meet the requirements of sustainable and green synthetic chem., and it provides a direct way to create valuable amine-sulfonate salt.

Journal of Molecular Structure published new progress about Green chemistry. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Chandrashekhar, Vishwas G. published the artcileNickel-catalyzed hydrogenative coupling of nitriles and amines for general amine synthesis, Quality Control of 42872-30-0, the main research area is amine preparation; nitrile amine hydrogenative coupling nickel catalyzed.

A homogeneous nickel catalyst for hydrogenative cross coupling of a range of aromatic, heteroaromatic, and aliphatic nitriles with primary and secondary amines or ammonia to give amines was reported. This general hydrogenation protocol was showcased by straightforward and highly selective synthesis of >230 functionalized and structurally diverse amines including pharmaceutically relevant and chiral products, as well as 15N-isotope labeling applications.

Science (Washington, DC, United States) published new progress about Coupling reaction (hydrogenative). 42872-30-0 belongs to class nitriles-buliding-blocks, name is 2-(3-Benzoylphenyl)propanenitrile, and the molecular formula is C16H13NO, Quality Control of 42872-30-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Chandrashekhar, Vishwas G. published the artcileNickel-catalyzed hydrogenative coupling of nitriles and amines for general amine synthesis, Name: Picolinonitrile, the main research area is amine preparation; nitrile amine hydrogenative coupling nickel catalyzed.

A homogeneous nickel catalyst for hydrogenative cross coupling of a range of aromatic, heteroaromatic, and aliphatic nitriles with primary and secondary amines or ammonia to give amines was reported. This general hydrogenation protocol was showcased by straightforward and highly selective synthesis of >230 functionalized and structurally diverse amines including pharmaceutically relevant and chiral products, as well as 15N-isotope labeling applications.

Science (Washington, DC, United States) published new progress about Coupling reaction (hydrogenative). 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

Cui, Xian-Chao published the artcileSynthesis of carbinoxamine via α-C(sp3)-H 2-pyridylation of O, S or N-containing compounds enabled by non-D-A-type super organoreductants and sulfoxide- or sulfide HAT reagents, Recommanded Product: Picolinonitrile, the main research area is alkyl oxy aryl methyl pyridine preparation; thio alkyl aryl methyl pyridine preparation; pyridine carbonitrile ether pyridylation catalyst CBZ6 benzenesulfinylbenzene; aryl alkyl pyridinyl methanamine; amine pyridine carbonitrile pyridylation catalyst CBZ6.

In this work, the discovery of a non-donor-acceptor (D-A) type organic photoreductant CBZ6 and sulfoxide/sulfide synergistically catalyzed general α-C(sp3)-H arylation of ethers, thioethers and amines to gave compounds R1R2CHXR3 [R1 = 2-pyridyl, 4-pyridyl, 3-methyl-2-pyridyl, etc.; R2 = Ph, 4-ClC6H4, 4-MeOC6H4, 2-MeC6H4, etc.; R3 = H, Bn, Me, n-Bu, etc.; X = O, S, N, NH, NCH3] was reported. By using as low as 1 mol% of CBZ6 as a recyclable organic photoreductant and sulfoxides or sulfides as a new type of HAT reagent, the 2- or 4-pyridylation of O, N, or S-containing compounds had been accomplished. This was the first base-free version of α-C-H 2-/4-pyridylation of O, N, or S-containing compounds It was the first example of sulfoxides or sulfides working as HAT reagents. It was also the first general method for photocatalytic HAT 2-pyridylation of various ethers, amines or thioethers.

Chemical Science published new progress about Arylation. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Recommanded Product: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Li, Hanning published the artcileTriarylamine-based porous coordination polymers performing both hydrogen atom transfer and photoredox catalysis for regioselective α-amino C(sp3)-H arylation, Safety of Phthalonitrile, the main research area is triarylamine based porous coordination polymer photocatalyst preparation; benzylamine regioselective preparation; amine benzonitrile alpha amino CH arylation coordination polymer photocatalyst.

Herein, a heterogeneous approach to combination of hydrogen atom transfer (HAT) and photoredox catalysis for regioselective C-H arylation of benzylamines was presented. The different mol. sizes and coordination modes of ligands, tricarboxytriphenylamine (H3TCA) and tris(4-(pyridinyl)phenyl)amine (NPy3), in one coordination polymer consolidated triarylamine (Ar3N) moiety into a special structural intermediate, which enhanced chem. and thermal stability of polymers and diminished structural relaxation during catalytic process. The inherent redox potentials of Ar3N moieties prohibited in situ formed Ar3N ·+ to earn an electron from C(sp3)-H nucleophiles, but allowed abstraction of a hydrogen atom from C(sp3)-H nucleophiles, enabling formation of C(sp3) · radical and cross-coupling reaction to proceed at most electron-rich sites with excellent regioselectivity. The new heterogeneous photoredox HAT approach skipped several interactions between transient species during typical synergistic SET/HAT cycles, demonstrating a promising redox-economical and reagent-economical heterogeneous platform that had not been reported for α-amino C-H arylation to form benzylamine derivatives Control experiments based on monoligand coordination polymers suggested that mixed-ligand approach improved photochem. and photophys. properties, providing important insight into rational design and optimization of recyclable photocatalysts for rapid access to complex bioactive mols. and late-stage functionalized pharmaceuticals.

Chemical Science published new progress about Arylation catalysts (photochem., regioselective). 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

Li, Hanning published the artcileTriarylamine-based porous coordination polymers performing both hydrogen atom transfer and photoredox catalysis for regioselective α-amino C(sp3)-H arylation, Computed Properties of 100-70-9, the main research area is triarylamine based porous coordination polymer photocatalyst preparation; benzylamine regioselective preparation; amine benzonitrile alpha amino CH arylation coordination polymer photocatalyst.

Herein, a heterogeneous approach to combination of hydrogen atom transfer (HAT) and photoredox catalysis for regioselective C-H arylation of benzylamines was presented. The different mol. sizes and coordination modes of ligands, tricarboxytriphenylamine (H3TCA) and tris(4-(pyridinyl)phenyl)amine (NPy3), in one coordination polymer consolidated triarylamine (Ar3N) moiety into a special structural intermediate, which enhanced chem. and thermal stability of polymers and diminished structural relaxation during catalytic process. The inherent redox potentials of Ar3N moieties prohibited in situ formed Ar3N ·+ to earn an electron from C(sp3)-H nucleophiles, but allowed abstraction of a hydrogen atom from C(sp3)-H nucleophiles, enabling formation of C(sp3) · radical and cross-coupling reaction to proceed at most electron-rich sites with excellent regioselectivity. The new heterogeneous photoredox HAT approach skipped several interactions between transient species during typical synergistic SET/HAT cycles, demonstrating a promising redox-economical and reagent-economical heterogeneous platform that had not been reported for α-amino C-H arylation to form benzylamine derivatives Control experiments based on monoligand coordination polymers suggested that mixed-ligand approach improved photochem. and photophys. properties, providing important insight into rational design and optimization of recyclable photocatalysts for rapid access to complex bioactive mols. and late-stage functionalized pharmaceuticals.

Chemical Science published new progress about Arylation catalysts (photochem., regioselective). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Computed Properties of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Akram, Manjur O. published the artcileLigand-Enabled Gold-Catalyzed C(sp2)-N Cross-Coupling Reactions of Aryl Iodides with Amines, Computed Properties of 1885-29-6, the main research area is ligand enabled gold catalyzed carbon nitrogen cross coupling; cross coupling aryl iodide amine high valent gold intermediate.

The first example of ancillary (P,N)-ligand-enabled gold-catalyzed C-N cross-coupling reactions of aryl iodides with amines is reported. The high generality of the reaction in de novo synthesis, late-stage modifications, and cascade processes to access functionalized indolinones and carbazoles underscores the synthetic potential of the presented strategy. Monitoring the reaction with ESI-HRMS and NMR provided strong evidence for the in situ formation of putative high valent Au(III) intermediates.

Organic Letters published new progress about Aryl iodides Role: RCT (Reactant), RACT (Reactant or Reagent). 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Computed Properties of 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts