Tag: M.W=100-150

Bains, Amreen K. published the artcileBorrowing Hydrogen-Mediated N-Alkylation Reactions by a Well-Defined Homogeneous Nickel Catalyst, HPLC of Formula: 1885-29-6, the main research area is borrowing hydrogen mediated nitrogen alkylation aniline alc; well defined homogeneous nickel catalyzed alkylation redox active ligand.

We report herein a well-defined and bench-stable azo-phenolate ligand-coordinated nickel catalyst which can efficiently execute N-alkylation of a variety of anilines by alc. We demonstrate that the redox-active azo ligand can store hydrogen generated during alc. oxidation and redelivers the same to an in-situ-generated imine bond to result in N-alkylation of amines. The reaction has wide scope, and a large array of alcs. can directly couple to a variety of anilines. Mechanistic studies including deuterium labeling to the substrate establishes the borrowing hydrogen method from alcs. and pinpoints the crucial role of the redox-active azo moiety present on the ligand backbone. Isolation of the ketyl intermediate in its trapped form with a radical quencher and higher kH/kD for the alc. oxidation step suggest altogether a hydrogen-atom transfer (HAT) to the reduced azo backbone to pave alc. oxidation as opposed to the conventional metal-ligand bifunctional mechanism. This example clearly demonstrates that an inexpensive base metal catalyst can accomplish an important coupling reaction with the help of a redox-active ligand backbone.

ACS Catalysis published new progress about Alcohols 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, HPLC of Formula: 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Talukdar, Ranadeep published the artcileIrIII-Catalyzed direct syntheses of amides and esters using nitriles as acid equivalents: a photochemical pathway, HPLC of Formula: 91-15-6, the main research area is amide preparation photochem; amine nitrile amidation iridium photocatalyst; ester preparation photochem; nitrile alc esterification iridium photocatalyst.

An unprecedented IrIII[df(CF3)ppy]2(dtbbpy)PF6-catalyzed simple photochem. process for direct addition of amines RNHR1 [R = H, iso-Pr, benzyl, 4-methoxyphenyl, Bu, adamantan-1-yl; R1 = H, iso-Pr, benzyl, hydroxyethyl; RR1 = -(CH2)4-, -(CH2)5-, -(CH2)2O(CH2)2-] and alcs. R2OH (R2 = Bu, cyclohexyl, benzyl, indol-1-yl, etc.) to the relatively less reactive nitrile triple bond is described herein. Various amides RN(R1)C(O)R3 (R3 = Me, cyclohexyl, Ph, pyridin-4-yl, etc.) and esters R2OC(O)R3 are synthesized as the reaction products, with nitriles R3CN being the acid equivalent A mini-library of different types of amides and esters is made using this mild and efficient process, which uses only 1 mol% of photocatalyst under visible light irradiation (λ = 445 nm). The reaction strategy is also efficient for gram-scale synthesis.

New Journal of Chemistry published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, HPLC of Formula: 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Stentzel, Michael R. published the artcileFunctionalized fluorenes via dicationic electrophiles, Computed Properties of 100-70-9, the main research area is alc biphenyl ketone cyclization; fluorenyl ether preparation; nitrile biphenyl ketone cyclization; amido fluorene preparation; Carbocation; Heterocycle; Superacid; Superelectrophile.

Dicationic fluorenyl cations were shown to react with nitriles to provide amide-functionalized fluorenes. A similar reaction with alcs. gave ether derivatives The chem. was initiated by the reactions of N-heterocyclic ketones in a superacidic solution This led to cyclizations involving 2-biphenyl groups and formation of the reactive fluorenyl cations.

Tetrahedron Letters published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Doan, Son H. published the artcileTropylium-promoted Ritter reactions, HPLC of Formula: 100-70-9, the main research area is amide preparation microwave continuous flow; alc nitrile Ritter reaction tropylium salt catalyst.

Herein, the development of a new method using salts of the tropylium ion to promote the Ritter reaction was reported. This method works well on a range of alcs., e.g., 1-phenylethanol and nitriles, e.g., acetonitrile, giving the corresponding products, e.g., N-(1-phenylethyl)acetamide in good to excellent yields. This reaction protocol is amenable to microwave and continuous flow reactors, offering an attractive opportunity for further applications in organic synthesis.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, HPLC of Formula: 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Senadi, Gopal Chandru published the artcileSustainable methine sources for the synthesis of heterocycles under metal- and peroxide-free conditions, Recommanded Product: 2-Aminobenzonitrile(Flakes or Chunks), the main research area is quinazolinone green preparation; alc amino benzamide cascade oxidative cleavage; ether amino benzamide cascade oxidative cleavage; benzimidazole green preparation; amino benzylamine methoxyethanol cascade oxidative cleavage.

Alcs. and ethers were identified as sustainable methine sources for synthesizing quinazolinones I [R = H, 8-Me, 7-NO2, etc.; R1 = OMe, allyl, Ph, etc,] and benzimidazoles II [R2 = H, 5-Cl, 6,7-di-Me, etc.] using a combination of TsOH·H2O/O2 and appropriate bis-nucleophiles for the first time. Deuterium labeling studies clearly proved that the C2 hydrogen of the synthesized heterocycles came from the methine source. These unique reaction conditions were successfully applied to the synthesis of echinozolinone I [R = H; R1 = CH2CH2OH, 2-(1H-indol-3-yl)ethyl] (a common precursor of rutaecarpine and (±) evodiamine) and dimedazole II [R2 = 5,6-di-Me]. Notable features of this method included its low toxicity, use of com. feedstocks as substrates, low cost, broad functional group tolerance and suitability for a wide range of bis-nucleophilic starting materials.

Green Chemistry published new progress about Alcohols 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, Recommanded Product: 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Wei, Xiangyang published the artcileDecyanative Cross-Coupling of Cyanopyrimidines with O-, S-, and N-Nucleophiles: A Route to Alkoxylpyrimidines, Aminopyrimidines and Alkylthiopyrimidines, Formula: C6H4N2, the main research area is decyanative cross coupling cyanopyrimidine alc thiol amine; preparation alkoxylpyrimidine aminopyrimidine alkylthiopyrimidine.

The transition metal-free cross-coupling reactions of cyanopyrimidines with aliphatic alcs., thiols (or S-alkylisothiourea salts) and amines, giving the corresponding alkoxylpyrimidines, aminopyrimidines, and alkylthiopyrimidines, are reported. Preliminary mechanistic studies reveal that it probably involves a sequential nucleophilic addition-intramol. rearrangement process, which is promoted by an intramol. N-H···N five-membered hydrogen bonding interaction. The presence of a nitrogen atom next to the cyano group is indispensable. The wide substrate scope with excellent yields makes cyanopyrimidines a promising alternative substrate class to the frequently used pyrimidines halides for the formation of C-O, C-S, and C-N bonds through the decyanative cross-coupling reaction.

European Journal of Organic Chemistry published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Formula: C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Sun, Kangkang published the artcileEfficient iron single-atom catalysts for selective ammoxidation of alcohols to nitriles, Quality Control of 100-70-9, the main research area is iron single atom catalyst preparation; nitrile preparation chemoselective; alc ammoxidation iron catalyst.

Zeolitic imidazolate frameworks derived Fe1-N-C catalysts with isolated single iron atoms were synthesized and applied for selective ammoxidation reactions. For the preparation of the different Fe-based materials, benzylamine as an additive proved to be essential to tune the morphol. and size of ZIFs resulting in uniform and smaller particles, which allowed stable atomically dispersed Fe-N4 active sites. The optimal catalyst Fe1-N-C achieved an efficient synthesis of various aryl, heterocyclic, allylic, and aliphatic nitriles from alcs. in water under very mild conditions. With its chemoselectivity, recyclability, high efficiency under mild conditions this new system complemented the toolbox of catalysts for nitrile synthesis, which were important intermediates with many applications in life sciences and industry.

Nature Communications published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Quality Control of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Lv, Cong published the artcileFrom amides to urea derivatives or carbamates with chemospecific C-C bond cleavage at room temperature, Safety of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is diaryl acetamide copper catalyst chemoselective bond cleavage; aryl aldehyde preparation; amine pyridinyl diphenylacetamide copper catalyst chemoselective bond cleavage; pyridinyl urea preparation; alc methylpyridinyl diphenylacetamide copper catalyst chemoselective bond cleavage; methylpyridinyl carbamate preparation.

Herein, a significant advancement in this area and present a general method for copper-catalyzed chemospecific C-C bond cleavage of amides to synthesize urea derivatives and carbamates at room temperature was reported. A catalytic process via a resonant six-membered N,O-chelated copper cycle and superoxide radical was proposed according to mechanistic and control experiments The combination of chelation assistance and radical oxygenation strategies opened a door for C-C bond cleavage of common substrates which possess multiple reactive sites and was envision that this broadly applicable method will be of great interest in organic synthesis, the pharmaceutical industry and the agrochem. industry.

Organic Chemistry Frontiers published new progress about Alcohols 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, Safety of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Gu, Yu published the artcileHighly Efficient Synthesis of Alkyl N-Arylcarbamates from CO2, Anilines, and Branched Alcohols with a Catalyst System of CeO2 and 2-Cyanopyridine, Related Products of nitriles-buliding-blocks, the main research area is arylcarbamate preparation; carbon dioxide aniline alc multicomponent reaction cerium dioxide catalyst.

Highly efficient synthesis of alkyl N-arylcarbamates from CO2, anilines, and alcs. using the CeO2 and 2-cyanopyridine catalyst system was substantiated by selecting branched alcs., such as 2-propanol and cyclohexanol, with minimized formation of byproducts, such as dialkyl carbonates and picolinamide. The catalyst system is operable even at low CO2 pressure (≤1 MPa), and the target carbamates were obtained with high arylamine-based yields (up to 94%). Alkyl N-phenylcarbamates were obtained from CO2, anilines, and alcs. with high yield and minimized formation of byproducts by using branched alcs.

ACS Sustainable Chemistry & Engineering published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Xiong, Yucong published the artcileBimetallic CoMoO4@C nanorod catalyzes one-pot synthesis of benzimidazoles from benzyl alcohol and o-phenylendiamine without alkali, Synthetic Route of 1885-29-6, the main research area is benzimidazole preparation green chem; alc aromatic diamine coupling carbon supported cobalt molybdenum oxide.

Benzimidazoles possess a series of applications for industrial chem. and biomedicine. However, the complicated synthetic steps and harsh reaction conditions limit its further development. Herein, authors reported an efficient, environmentally friendly, and stable bimetallic CoMoO4@C catalyst, which used low-cost cobalt and molybdenum as the basic raw material. In base-free conditions, it has been proved that the yield could achieve to 99.9% for the synthesis of benzimidazoles with liberating water as the sole byproduct, and the catalyst remains stable and efficient even after five successive cycle tests. Addnl., experiments and characterizations confirm the good oxidation activity of the catalyst benefits from the numerous oxygen vacancies provided by the high concentration of low-valent cobalt (Co2+) and the doping of carbon improves the intermol. transport of electrons. Furthermore, this strategy could potentially be applied in the industrial production of benzimidazoles.

Applied Organometallic Chemistry published new progress about Alcohols 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, Synthetic Route of 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts