Category: nitriles-buliding-blocks

Zeng, Kui published the artcileDirect nitrogen interception from chitin/chitosan for imidazo[1,5-a]pyridines, Recommanded Product: Picolinonitrile, the main research area is pyridine ketone aldehyde chitosan heterocyclization; imidazopyridine preparation.

A catalyst-free one-pot methodol. that enable direct nitrogen interception of chitosan/chitin for imidazo[1,5-a]pyridines was developed. This strategy features direct synthesis of important deuterated imidazo[1,5-a]pyridines and tridentate ligands. In particular, a broad group of previously inaccessible products including saturated 1-alkylimidazo[1,5-a]pyridines were unprecedentedly synthesized by this protocol.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aldehydes 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, Recommanded Product: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Zeng, Kui published the artcileAnomeric Stereoauxiliary Cleavage of the C-N Bond of D-Glucosamine for the Preparation of Imidazo[1,5-a]pyridines, Product Details of C6H4N2, the main research area is imidazopyridine preparation; pyridine ketone aldehyde glucosamine stereoauxiliary cleavage reaction; C−N bond cleavage; d-glucosamine; imidazo[1,5-a]pyridines; stereoauxiliary; stereochemistry.

An anomeric stereoauxiliary approach for the synthesis of a wide range of imidazo[1,5-a]pyridines I (R1 = Me, 2-methylphenyl, pyridin-2-yl, etc.; R2 = 4-methoxyphenyl, naphthalen-1-yl, thiophen-2-yl, etc.) after cleaving the C-N bond of D-glucosamine (α-2° amine) from biobased resources was reported . This new approach expands the scope of readily accessible imidazo[1,5-a]pyridines I relative to existing state-of-the-art methods. A key strategic advantage of this approach is that the α-anomer of D-glucosamine enables C-N bond cleavage via a seven-membered ring transition state. By using this novel method, a series of imidazo[1,5-a]pyridine derivatives (>80 examples) was synthesized from 2-acylpyridines (including para-dipyridine ketone) and aldehydes (including para-dialdehyde) R2CHO. Imidazo[1,5-a]pyridine I derivatives containing diverse important deuterated C(sp2)-H and C(sp3)-H bonds were also efficiently achieved.

Chemistry – A European Journal published new progress about Aldehydes 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, Product Details of C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Wang, Deqiang published the artcileA Lewis Base Supported Terminal Uranium Phosphinidene Metallocene, HPLC of Formula: 91-15-6, the main research area is uranium phospinidene metallocene preparation reactivity imine diazene carbodiimide nitrile; phospinidene uranium metallocene adduct imine diazene nitrile preparation; crystal structure uranium phospinidene metallocene adduct imine diazene nitrile; mol structure uranium phospinidene metallocene adduct imine diazene nitrile.

A Lewis base supported terminal U phosphinidene, [η5-1,3-(Me3C)2C5H3]2U(:P-2,4,6-tBu3C6H2)(OPMe3) (5), is isolated from the reaction of the U Me chloride [η5-1,3-(Me3C)2C5H3]2U(Cl)Me (4) with 2,4,6-(Me3C)3C6H2PHK in toluene in the presence of Me3PO. Also, the reactivity of the U phospinidene 5 toward small mols. were comprehensively explored. While no reactivity of 5 with internal alkynes is observed attributed to steric hindrance, it readily reacts with various small mols. including isothiocyanates, aldehydes, imines, diazenes, carbodiimides, nitriles, isonitriles, and organic azides, yielding U sulfides, oxides, metallaheterocycles, and imido complexes, in good yields. A Lewis base supported actinide phosphinidene metallocene was isolated and its reactivity toward small mols. was studied. It exhibits a rich reaction chem. toward a variety of heterounsatd. mols. and the steric hindrance imposed by the Cp ligand plays an important role in the formation and reaction chem. of U phosphinidene metallocenes.

Inorganic Chemistry published new progress about Aldehydes 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

Wang, Shichun published the artcileSynthesis and reactivity of the uranium phosphinidene metallocene [η5-1,3-(Me3Si)2C5H3]2U(:P-2,4,6-iPr3C6H2)(OPMe3): influence of the coordinated Lewis base, Product Details of C8H4N2, the main research area is reactivity uranium phosphinidene metallocene Lewis base; isothiocyanate aldehyde nitrile isonitrile azide reactivity uranium phosphinidene metallocene.

This paper describes the synthesis and reactivity of [η5-1,3-(Me3Si)2C5H3]2U(:P-2,4,6-iPr3C6H2)(OPMe3) (6) which is accessible from a ligand exchange reaction between [η5-1,3-(Me3Si)2C5H3]2U(:P-2,4,6-iPr3C6H2)(OPPh3) (2) and Me3PO at ambient temperature Phosphinidene 6 exhibits no reactivity towards internal alkynes, but readily reacts with various hetero-unsaturated mols. such as isothiocyanates, aldehydes, nitriles, isonitriles, and organic azides, forming uranium sulfido, oxido, imido, and uranaheterocyclic compounds Nevertheless, with the bidentate ortho-dicyanobenzene o-C6H4(CN)2 the zwitterionic species [η5-1,3-(Me3Si)2C5H3]2U[NHC(N){C6H4CP(2,4,6-iPr3C6H2)CH2PMe2O}] (13) is isolated in good yield. Moreover, 6 converts with Ph2S2 to the uranium(III) phenylthiolate compound [η5-1,3-(Me3Si)2C5H3]2USPh(OPMe3) (7) in good isolated yield. Furthermore, the influence of the Lewis base on the reactivity of the uranium phosphinidene metallocenes has also been evaluated.

Dalton Transactions published new progress about Aldehydes 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, Product Details of C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Guin, Joyram published the artcileCatalytic Asymmetric Protonation of Silyl Ketene Imines, Category: nitriles-buliding-blocks, the main research area is chiral phosphoric acid catalyzed asym protonation silyl ketene imine; nitrile enantioselective synthesis.

An efficient catalytic and highly enantioselective protonation of silyl ketene imines is described. The reaction is catalyzed by the chiral phosphoric acids TRIP or STRIP (I and II, resp.) in the presence of a stoichiometric amount of methanol as the proton source and silyl acceptor. A variety of substituted racemic silyl ketene imines have been transformed into highly enantioenriched nitriles [e.g., (±)-(4-MeOC6H4)MeC:C:NTBS → (S)-(4-MeOC6H4)CHMeCN].

Journal of the American Chemical Society published new progress about Bronsted acids Role: CAT (Catalyst Use), USES (Uses) (chiral). 42872-30-0 belongs to class nitriles-buliding-blocks, name is 2-(3-Benzoylphenyl)propanenitrile, and the molecular formula is C16H13NO, Category: nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Lehmann, Johannes published the artcileThe Kondrat’eva Reaction in Flow: Direct Access to Annulated Pyridines, COA of Formula: C10H6N2O, the main research area is annulated pyridine preparation; continuous flow inverse electron demand Kondrateva cycloaddition reaction; cycloaddition reaction continuous flow oxazole cycloalkene.

A continuous flow inverse-electron-demand Kondrat’eva reaction has been developed that provides direct access to cycloalka[c]pyridines from unactivated oxazoles and cycloalkenes. The cycloadditions of both unactivated alkenes and deactivated oxazoles are promoted in continuous flow at elevated temperatures and pressures (230 °C, 750psi). E.g., reaction of 5-phenyloxazole and cyclopentene in presence of TFA gave 55% 4-phenyl-6,7-dihydro-5H-cyclopenta[c]pyridine (I). Annulated pyridines obtained by this one-step process are valuable scaffolds for medicinal chem.

Organic Letters published new progress about Cycloalkenes Role: RCT (Reactant), RACT (Reactant or Reagent). 87150-13-8 belongs to class nitriles-buliding-blocks, name is 4-(5-Oxazolyl)benzonitrile, and the molecular formula is C10H6N2O, COA of Formula: C10H6N2O.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Paternoga, Jan published the artcileHantzsch Ester-Mediated Photochemical Transformations in the Ketone Series: Remote C(sp3)-H Arylation and Cyclopentene Synthesis through Strain Release, Related Products of nitriles-buliding-blocks, the main research area is ketocyclopropane preparation terminalalkyne diastereoselective cycloaddition Hantzsch ester green chem; mesyloxyketone terminal alkyne diastereoselective cycloaddition Hantzsch ester green chem; ketocyclopentene preparation; cyanopyridine ketocyclopropane preparation coupling reaction Hantzsch ester green chem; cyano pyridine mesyloxyketone coupling reaction Hantzsch ester green chem; pyridinylketone preparation.

A metal-free Hantzsch ester-mediated synthesis of cyclopentenylketones as well as γ-hetarylketones starting from ketocyclopropanes under eco-friendly conditions was developed. The versatility of the developed conditions was shown by reacting ketocyclopropanes in both a formal [3 + 2] cycloaddition with terminal alkynes (further investigated using theor. calculations) and a radical C-C-coupling with cyanopyridines. The newly developed methodologies were later on utilized as a downstream reaction for photogenerated cyclopropanes combining UV and visible light photochem. Following this procedure, a UV-driven Norrish-Yang-type reaction induced the ring strain of the intermediates, which served as activation energy for the subsequent ring transformation.

Journal of Organic Chemistry published new progress about Alkynes, α- 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

Wang, Qiang published the artcileBase-Promoted Nitrile-Alkyne Domino-Type Cyclization: A General Method to Trisubstituted Imidazoles, Application In Synthesis of 100-70-9, the main research area is trisubstituted imidazole preparation; alkyne nitrile potassium tert butylate domino cyclization.

An efficient base promoted nitrile-alkyne domino-type cyclization for multicomponent assembly of imidazoles from alkynes, nitriles, and tBuOK has been developed, which could run even in the absence of solvent on a gram scale with complete atom economy. This method contributes directly to reaching the synthesis of valuable imidazole derivatives from readily available raw materials.

Organic Letters published new progress about Alkynes, α- 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, Application In Synthesis of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Yan, Xinlong published the artcileAerobic oxidation of primary benzylic amines to amides and nitriles catalyzed by ruthenium carbonyl clusters carrying N,O-bidentate ligands, Formula: C6H4N2, the main research area is trinuclear ruthenium carbonyl catalyst preparation; nitrile preparation; amide preparation; benzylic amine aerobic oxidation.

Four trinuclear ruthenium carbonyl clusters were synthesized from the reactions of Ru3(CO)12 with the corresponding N,O-bidentate ligands (two pyridyl alcs. and two Schiff bases) resp. in a ratio of 1 : 2. Three new complexes were fully characterized by elemental anal., FT-IR, NMR and X-ray crystallog. The catalytic activity of these ruthenium complexes for the aerobic oxidation of primary benzylic amines to amides and nitriles in the presence of t-BuOK was investigated.

Dalton Transactions published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Thirukovela, Narasimha Swamy published the artcileActivation of nitriles by silver(I) N-heterocyclic carbenes: An efficient on-water synthesis of primary amides, Synthetic Route of 100-70-9, the main research area is silver NHC catalyst preparation; nitrile silver NHC catalyst hydration; primary amide preparation.

A first example of silver(I) N-heterocyclic carbene (Ag(I)-NHC) catalyzed on-water synthesis of primary amides by hydration of nitriles under mild reaction conditions was described. This organometallic catalytic system has excellent tolerance for various homo-aromatic, hetero-aromatic and aliphatic nitriles to afford primary amides in good yields in neat water.

Tetrahedron published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 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