Nitriles-buliding-blocks

Kotani, Shunsuke; Sakamoto, Midori; Osakama, Kazuki; Nakajima, Makoto published the artcile< A Sterically Congested α-Cyanoamine as a Cyanating Reagent: Cyanation of Acetals and Orthoesters>, Formula: C6H11NO2, the main research area is alkoxy alkanenitrile nitrile cyanation.

The cyanation of acetals and ortho-esters by using a sterically congested α-cyanoamine as a cyanation reagent was investigated. The α-cyanoamine effectively facilitated cyanation in the presence of trichlorosilyl triflate to produce a variety of cyanated adducts in excellent yields. Anal. of the reaction mixture by 1H NMR spectroscopy revealed that trichlorosilyl triflate produced an oxocarbenium cation species as an intermediate. Under optimized conditions the synthesis of the target compounds was achieved using 1,1,1-trifluoromethanesulfonic acid trichlorosilyl ester as a reagent and 2-(dicyclohexylamino)acetonitrile (cyanation agent amine-cyanide) and (dimethoxymethyl)benzene (benzaldehyde acetal), (3,3-dimethoxy-1-propen-1-yl)benzene, (dimethoxymethyl)cyclohexane, 1,1′-[(phenylmethylene)bis(oxymethylene)]bis[benzene], 2-phenyl-1,3-dioxolane (cyclic acetal) as starting materials. The title compounds thus formed included α-(methoxy)benzeneacetonitrile derivatives, α-(methoxy)-1-naphthaleneacetonitrile, 2-methoxy-4-phenyl-2-butenenitrile, α-(2-hydroxyethoxy)benzeneacetonitrile. Ortho-ester reactants included (trimethoxymethyl)benzene, 1,1′,1”-[methylidynetris(oxy)]tris[ethane] and 1,1,1-triethoxypentane. Products therefrom included α,α-dimethoxybenzeneacetonitrile.

European Journal of Organic Chemistry published new progress about Acetals Role: RCT (Reactant), RACT (Reactant or Reagent). 6136-93-2 belongs to class nitriles-buliding-blocks, and the molecular formula is C6H11NO2, Formula: C6H11NO2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Kuzuya, Masayuki; Noguchi, Akihiro; Okuda, Takachiyo published the artcile< Quantum chemical consideration of substituent effects on tautomeric properties of 2-pyridones-2-pyridinols>, Reference of 89324-17-4, the main research area is tautomerism pyridone pyridinol UV; MO tautomerism pyridone; substituent effect pyridone tautomerism.

The tautomeric properties of 2-pyridones-2-pyridinols exerted by the substituent effect were discussed on the basis of quantum chem. quantities deduced from MO calculations A substituent at the 6-position has the greatest stabilizing effect. The magnitude of this effect was greater on the 2-pyridinol form than on the 2-pyridone form, irresp. of the nature of the substituent. This led to a large predominance of the 2-pyridinol form on the 6-polar-substituted derivatives, to such an extent that it was observed by conventional UV measurements at ambient temperature In the 6-Me derivative, the 2-pyridinol form was not observed by a similar measurement due to the weak substituent effect. The association ability is still an important factor in determining tautomeric equilibrium in a solution, resulting in a strong lability to the mol. environment. The substituent effects on the stabilities of both tautomers were correlated with the N-at. charges and ring structural modifications of the tautomers.

Bulletin of the Chemical Society of Japan published new progress about Electron configuration. 89324-17-4 belongs to class nitriles-buliding-blocks, and the molecular formula is C6H4N2O, Reference of 89324-17-4.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Dulou, Raymond; Savostianoff, Dimitri published the artcile< Synthesis of glyoxal acetals from diethoxyacetonitrile>, Computed Properties of 6136-93-2, the main research area is .

A series of RCOCH(OEt)2 (I) was prepared from (EtO)2CHCN (II) with the corresponding RMgX. II was obtained in 77% yield by ammonolysis of (EtO)2CHCO2Et and subsequent dehydration of the resulting (EtO)2CHCONH2. II (12.9 g.) in 150 cc. dry Et2O added to about 0.2 mol appropriate RMgX in Et2O (1-1.9 mol/kg.), stirred 1 h., kept 12 h. at room temperature, treated with 50 g. NH4Cl in 200 cc. H2O, and acidified with concentrated HCl to pH 2-3 yielded 80-95% corresponding I listed in the table. R, b.p./mm., n20D, d2020, % yield; Et, 98-100°/55, 1.408, 0.929, 80; iso-Pr, 103-4°/45, 1.408, 0.910, 79; Am, 104-7°/9, 1.420, 0.913, 94; C7H15, 126-30°/10-11, 1.426, 0.886, 94; Ph, 135-6°/12, 1.505, 1.040, 80; cyclohexyl, 108-13°/10, 1.448, 0.961, 95;

Comptes Rendus des Seances de l’Academie des Sciences, Serie C: Sciences Chimiques published new progress about 6136-93-2. 6136-93-2 belongs to class nitriles-buliding-blocks, and the molecular formula is C6H11NO2, Computed Properties of 6136-93-2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Traboulsi, Iman; Dange, Nitin S.; Pirenne, Vincent; Robert, Frederic; Landais, Yannick published the artcile< Enantioselective Total Synthesis of (+)-Eucophylline>, HPLC of Formula: 38487-85-3, the main research area is eucophylline total enantioselective synthesis free radical cyanation; Eucophylline; Monoterpene indole Alkaloid; cyclobutane; cyclobutene; cyclopropane; radical; sulfonyl-cyanation.

The total enantioselective synthesis of (+)-eucophylline (I) was achieved using as a key-structural motif a chiral piperidinone, II, bearing the natural product all-carbon quaternary stereocenter. The elaboration of the latter is based on two strategies relying on the free-radical carbo-cyanation and sulfonyl-cyanation resp. of enantiopure substituted cyclopropenes and cyclobutenes. Co- or Ni-boride reduction of the nitrile functional group along with the cyclopropane and cyclobutane ring-opening then led to the formation of the chiral piperidinone ring. Further elaboration of the latter into the key 1-azabicyclo[3.3.1]nonane motif followed by its coupling with a 2-cyanoaniline allowed the formation of the tetrahydrobenzo[b][1,8]-naphthyridine skeleton of I, which was finally accessible in 17 steps and 5.9% overall yield from 1,1-dibromobutene.

Chemistry – A European Journal published new progress about Cyanation. 38487-85-3 belongs to class nitriles-buliding-blocks, and the molecular formula is C8H8N2O, HPLC of Formula: 38487-85-3.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Kalogirou, Andreas S.; Kourtellaris, Andreas; Koutentis, Panayiotis A. published the artcile< Synthesis and Reactivity of 3',5'-Dichloro-1H-spiro(quinazoline-2,4'-[1,2,6]thiadiazin)-4(3H)-ones>, Quality Control of 38487-85-3, the main research area is chloro spiro quinazoline thiadiazine derivative synthesis reactivity.

A three-step synthesis of 3′,5′-dichloro-1H-spiro(quinazoline-2,4′-[1,2,6]thiadiazin)-4(3H)-ones starting from 3,4,4,5-tetra-chloro-4H-1,2,6-thiadiazine (I) is presented. The latter reacts with 2-aminobenzonitriles to give 2-[(3,5-dichloro-4H-1,2,6-thiadiazin-4-ylidene)amino]benzonitriles [e.g., I + 2-aminobenzonitrile → II (86%)] , which affords, after hydration, the resp. benzamides [II → III (84%)]. Upon heating at reflux in EtOH or HFIP, the benzamides intramolecularly cyclize onto the thiadiazine C4 position to give 3′,5′-dichloro-1H-spiro(quinazoline-2,4′-[1,2,6]thiadiazin)-4(3H)-ones [III → IV (95% in EtOH, 97% in HFIP)]. Single crystal X-ray crystallog. supports the structure of two analogs. The chloride displacement of these new spiroquinazolinones was demonstrated by Stille coupling, and by reaction with methoxide to afford both the mono and bis-methoxy derivatives

European Journal of Organic Chemistry published new progress about Aromatic nitriles Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (anthranilonitriles → [(dichlorothiadiazinylidene)amino]benzonitriles). 38487-85-3 belongs to class nitriles-buliding-blocks, and the molecular formula is C8H8N2O, Quality Control of 38487-85-3.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Bochis, Richard J.; Chabala, John C.; Harris, Ellwood; Peterson, Louis H.; Barash, Louis; Beattie, Thomas; Brown, Jeannette E.; Graham, Donald W.; Waksmunski, Frank S. published the artcile< Benzylated 1,2,3-triazoles as anticoccidiostats>, Recommanded Product: 2-Chloro-4-methylbenzonitrile, the main research area is triazole benzylated preparation anticoccidiostat; carbamoylaminotriazole preparation anticoccidiostat; structure activity carbamoylaminotriazole anticoccidiostat; aminobenzylcarbamoyltriazole preparation anticoccidiostat; benzyltriazole aminocarbamoyl preparation anticoccidiostat.

Substituted aminocarbamoyltriazoles I (R = Cl, H, COC6H4Cl-4; R1 = COC6H4R3, COPh, H, Cl, R3 = 4-Cl, 4-F, 4-cyano, 4-CO2Me, 4-CCl:CCl2, 4-Br, 4-iodo; R1 = COC6H3Cl2-3,4, COC6H3Cl2-2,6, etc.; R2 = H, Cl, F, Br) were prepared and evaluated in vivo for anticoccidial activity. Thus, N-alkylation of 5-amino-4-carbamoyl-1,2,3-triazole with benzene derivatives II (R4 = Br) gave I. Cyclization of II (R4 = N3) with 2-cyanoacetamide also gave I. I (R = R2 = Cl, R1 = COC6H4Cl-4) is a highly effective coccidiostat. An increase in activity was observed when the CO of the benzophenone moiety is flanked by halogens as in I (R = R2 = Cl, R1 = COC6H4Cl-4; R = R2 = Cl, R1 = COPh).

Journal of Medicinal Chemistry published new progress about Coccidiostats. 21423-84-7 belongs to class nitriles-buliding-blocks, and the molecular formula is C8H6ClN, Recommanded Product: 2-Chloro-4-methylbenzonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Gore, Babasaheb Sopan; Chiang, Chun-Hsien; Lee, Chein Chung; Shih, Yi-Lun; Wang, Jeh-Jeng published the artcile< De Novo Protocol for the Construction of Benzo[a]fluorenes via Nitrile/Alkene Activation>, Computed Properties of 21667-62-9 , the main research area is nitrile alkene alkyne chemoselective regioselective annulative cyclodimerization; benzofluorene preparation.

Unprecedented chemo- and regioselective synthesis of benzo[a]fluorenes and naphthamide-substituted benzo[a]fluorenes were constructed from the reaction of (E)-2-aroyl-3-(2-(arylalkynes/alkenes)aryl)acrylonitrile scaffolds under metal-free conditions via the activation of nitriles and alkenes, resp. A tentative reaction mechanism was proposed for this homofunctionalization of nitriles. Control experiments showed that the reaction proceeds via selective nitrile or alkene protonation, depending upon the substrates. Addnl., we demonstrated an alternative expeditious route for the synthesis of disubstituted benzo[a]fluorenes in the presence of TfOH alone.

Organic Letters published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 21667-62-9 belongs to class nitriles-buliding-blocks, and the molecular formula is C9H6ClNO, Computed Properties of 21667-62-9 .

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Suzuki, Itaru; Ogura, Kazuki; Shimazu, Jun-ya; Shibata, Ikuya published the artcile< Magnesium Halide-Catalyzed Synthesis of Oxaspiro[2.5]octenes from a Methylenecyclopropane and Acyl Cyanoalkenes>, COA of Formula: C9H6ClNO, the main research area is oxaspirooctene preparation diastereoselective chemoselective; methylenecyclopropane acyl cyanoalkene cyclization magnesium halide catalyst.

MgX2-catalyzed annulation of 1,1-di-Et 2-methylidenecyclopropane-1,1-dicarboxylate with acyl cyanoalkenes RC(O)C(CN)=CHAr (R = Me, Ph, 3-chlorophenyl, etc.; Ar = 4-fluorophenyl, 1-naphthyl, 2-furyl, etc.) was accomplished to give oxaspiro[2.5]octenes I (E = C(O)OEt) and II in excellent yields. The reaction proceeded through a rare intramol. oxa-Michael addition of Mg enolate. The oxaspiro ring was transformed into di-Et 2-((5-cyano-4,6-diphenyl-4H-pyran-2-yl)methyl)malonate at a higher temperature in the presence of MgX2.

European Journal of Organic Chemistry published new progress about Chemoselectivity. 21667-62-9 belongs to class nitriles-buliding-blocks, and the molecular formula is C9H6ClNO, COA of Formula: C9H6ClNO.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Clark, Robin D.; Jahangir, Alam published the artcile< Lateral lithiation reactions promoted by heteroatomic substituents>, Recommanded Product: 2,2-Diethoxyacetonitrile, the main research area is review Reactions; review Promoted; review Heteroatomic; review Substituents; review Lithiation; review Lateral.

A review of the article Lateral lithiation reactions promoted by heteroat. substituents.

Organic Reactions (Hoboken, NJ, United States) published new progress about Organic synthesis. 6136-93-2 belongs to class nitriles-buliding-blocks, and the molecular formula is C6H11NO2, Recommanded Product: 2,2-Diethoxyacetonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Aldeborgh, Hannah; George, Kaylene; Howe, Morgan; Lowman, Heili; Moustakas, Holger; Strunsky, Nora; Tanski, Joseph M. published the artcile< Analysis of Small Molecule X-Ray Crystal Structures: Chemical Crystallography with Undergraduate Students in a Teaching Laboratory>, COA of Formula: C7H3ClFN, the main research area is mol xray crystal structure crystalline chem education analysis.

Abstract: The mol. structures of six small mol. organic compounds have been studied by X-ray diffraction in collaboration with undergraduate students enrolled in an advanced integrated laboratory course. The structures of 3-chloro-2-fluorobenzonitrile (1) [orthorhombic, P212121, a = 3.7679(13) Å, b = 12.546(4) Å, c = 13.780(5) Å], 5-chloro-2-fluorobenzonitrile (2) [monoclinic, P21/c, a = 3.7909(7) Å, b = 14.265(3) Å, c = 12.171(2) Å, β = 92.314(3)°], 2-bromo-3′-hydroxyacetophenone (3) [triclinic, P-1, a = 7.7081(3) Å, b = 9.8840(3) Å, c = 10.7320(4) Å, α = 98.4345(4)°, β = 90.6184(4)°, γ = 105.9259(4)°], 3-chlorobenzoylacetonitrile (4) [monoclinic, Cc, a = 4.8086(6) Å, b = 32.929(4) Å, c = 10.5855(13) Å, β = 97.665(1)°], 4-bromo-1-indanone (5) [triclinic, P-1, a = 7.3731(4) Å, b = 7.5419(4) Å, c = 8.2370(4) Å, α = 62.927(1)°, β = 71.160(1)°, γ = 71.521(1)°], and 4-bromo-1-indanol (6) [monoclinic, P21/c, a = 12.7914(9) Å, b = 4.6949(4) Å, c = 27.864(2) Å, β = 94.707(1)°] reveal several different types of intermol. interactions, such as hydrogen bonding, π-stacking, halogen-halogen interactions, and C-H···X (X = O, N, halogen) interactions. Graphical Abstract: The mol. structures of six small mol. organic compounds have been studied by X-ray diffraction in collaboration with undergraduate students enrolled in an advanced integrated laboratory course. The structures reveal several different types of intermol. interactions, such as hydrogen bonding, π-stacking, halogen-halogen interactions, and C-H···X (X = O, N, halogen) interactions.

Journal of Chemical Crystallography published new progress about Chemical education (undergraduate, organic). 94087-40-8 belongs to class nitriles-buliding-blocks, and the molecular formula is C7H3ClFN, COA of Formula: C7H3ClFN.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts