Author: Jessica.F

Sharma, Pragati R. published the artcileExperimental and computational studies on the Cinchona anchored calixarene catalysed asymmetric Michael addition reaction, HPLC of Formula: 5153-73-1, the publication is Chemical Communications (Cambridge, United Kingdom) (2022), 58(52), 7249-7252, database is CAplus and MEDLINE.

Lower-rim Cinchona anchored calix[4]arene cationic catalysts were developed for asym. Michael addition of acetylacetone to β-nitrostyrenes. The desired Michael adducts were formed with high yields and enantioselectivities. D. functional theory investigations throw light on the catalyst-substrate interaction and the reaction mechanism.

Chemical Communications (Cambridge, United Kingdom) 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 C19H14Cl2, HPLC of Formula: 5153-73-1.

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

Naveen, Togati published the artcileA Predictably Selective Nitration of Olefin with Fe(NO₃)₃ and TEMPO, Category: nitriles-buliding-blocks, the publication is Journal of Organic Chemistry (2013), 78(12), 5949-5954, database is CAplus and MEDLINE.

Ferric nitrate with catalytic TEMPO has been identified as a useful reagent for regio- and stereoselective nitration of a wide variety of aromatic, aliphatic, and heteroaromatic olefins. This reaction provided nitroolefins in preparatively useful yields with excellent E-selectivity. Due to its mild nature and operational simplicity, the present protocol is expected to find application in synthetic setup.

Journal of Organic Chemistry 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

Speckmeier, Elisabeth published the artcileART – An Amino Radical Transfer Strategy for C(sp²)-C(sp³) Coupling Reactions, Enabled by Dual Photo/Nickel Catalysis, COA of Formula: C10H18BNO2, the publication is Journal of the American Chemical Society (2022), 144(22), 9997-10005, database is CAplus and MEDLINE.

Introducing the novel concept of amino radical transfer (ART) enabled the use of easily accessible and com. available alkyl boronic esters as cross coupling partners for aryl halides in dual photoredox/nickel catalysis mediated by visible light. Activation of otherwise photochem. innocent boronic esters by radicals generated from primary or secondary alkylamines gaves rise to an outstanding functional group tolerance in a mild, fast and air stable reaction. As shown in more than 50 examples including unprotected alcs., amines and carboxylic acids, ArR [Ar = 4-MeOC₆H₄, 4-MeC(O)HNC₆H₄, 3-pyridyl, etc.; R = cyclohexyl, 1-tert-butoxycarbonyl-4-piperidyl, Bn, etc.] this reaction allowed to quickly build up relevant scaffolds for organic synthesis and medicinal chem. In comparison with existing methods for C(sp²)-C(sp³) couplings an extraordinary generality could be realized via the ART concept, employing a single set of optimized reaction conditions. Due to its selectivity, the transformation could also be used for late-stage functionalization, as demonstrated with three exemplary syntheses of drug mols. Furthermore, the successful one-to-one scalability of this reaction up to gram scale without the necessity of any further precautions or flow systems was demonstrated.

Journal of the American Chemical Society published new progress about 238088-16-9. 238088-16-9 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Boronic acid and ester,Aliphatic cyclic hydrocarbon,Boronic Acids,Boronate Esters, name is 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)butanenitrile, and the molecular formula is C12H16O3, COA of Formula: C10H18BNO2.

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

Hikawa, Hidemasa published the artcileCationic palladium(II)-catalyzed dehydrative nucleophilic substitutions of benzhydryl alcohols with electron-deficient benzenethiols in water, Application In Synthesis of 68569-14-2, the publication is Organic & Biomolecular Chemistry (2016), 14(29), 7038-7045, database is CAplus and MEDLINE.

An efficient direct nucleophilic substitution of benzhydryl alcs. with electron-deficient benzenethiols using cationic Pd(II) catalysts as Lewis acids in water is reported. Atom economical and environmentally benign protocols afford S-benzylated products in moderate to excellent yields. Com. available Pd(MeCN)₄(OTf)₂, PdCl₂(MeCN)₂, and Na₂PdCl₄ are highly efficient catalysts. Notably, this simple protocol can be achieved without any other additives such as acids, bases, or external ligands. A Hammett study on the rate constants of S-benzylation by using various substituted benzhydryl alcs. yielded neg. ρ values, suggesting that there is a build-up of pos. charge in the transition state.

Organic & Biomolecular Chemistry published new progress about 68569-14-2. 68569-14-2 belongs to nitriles-buliding-blocks, auxiliary class Palladium, name is Tetrakis(acetonitrile)palladium(II) Ditriflate, and the molecular formula is C10H12F6N4O6PdS2, Application In Synthesis of 68569-14-2.

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

Wang, Lei published the artcileSynthesis, herbicidal activities and comparative molecular field analysis study of some novel triazolinone derivatives, SDS of cas: 612-13-5, the publication is Chemical Biology & Drug Design (2009), 73(6), 674-681, database is CAplus and MEDLINE.

A series of novel triazolinones were synthesized and their structures were characterized by ¹H NMR, elemental anal. and single-crystal X-ray diffraction anal. The herbicidal activities were evaluated against Echinochloa crusgalli (L.) Beauv., Digitaria adscendens, Brassica napus and Amaranthus retroflexus. The herbicidal activity data indicated that the title compounds had higher activities with substituted benzyl group moieties than with other groups such as sulfonyl, alkyl, etc. To further investigate the structure-activity relationship, comparative mol. field anal. was performed on the basis of herbicidal activity data. Both the steric and electronic field distributions of comparative mol. field anal. are in good agreement in this work. The results showed that a bulky and electroneg. group around the ortho- or para-positions of the benzene ring would possibly lead to higher activity. Based on the comparative mol. field anal., compound 2-[(1-(2,4-Dichlorophenyl)-3-methyl-5-oxo-1H-1,2,4-triazol-4(5H)-yl)methyl]benzonitrile was designed and synthesized, which displays as good herbicidal activities as the com. herbicide, carfentrazone-Et. The activity against Digitaria adscendens is 66.1% under preemergence at 300 g of a.i./ha.

Chemical Biology & Drug Design published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C14H28O5S, SDS of cas: 612-13-5.

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

Sikka, Harish C. published the artcileUptake and metabolism of dichlobenil by emersed aquatic plants, HPLC of Formula: 3336-34-3, the publication is Journal of Agricultural and Food Chemistry (1974), 22(2), 230-4, database is CAplus and MEDLINE.

14C-nitrile-labeled dichlobenil (2,6-dichlorobenzonitrile)(I) [1194-65-6] was readily absorbed and translocated by roots of the immersed aquatic plants, alligator weed (Alternanthera philoxeroides) and parrot feather (Myriophyllum brasiliense). Parrot feather metabolized I principally to 3-hydroxy-2,6-dichlorobenzonitrile [3336-34-3], 2,6-dichlorobenzamide [2008-58-4], and 2,6-dichlorobenzoic acid [50-30-6], whereas alligator weed did not metabolize I.

Journal of Agricultural and Food Chemistry published new progress about 3336-34-3. 3336-34-3 belongs to nitriles-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene,Phenol, name is 2,6-Dichloro-3-hydroxybenzonitrile, and the molecular formula is C15H10O2, HPLC of Formula: 3336-34-3.

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

Lubov, Dmitry P. published the artcilePalladium aminopyridine complexes catalyzed selective benzylic C-H oxidations with peracetic acid, Category: nitriles-buliding-blocks, the publication is Dalton Transactions (2020), 49(32), 11150-11156, database is CAplus and MEDLINE.

Four palladium(II) complexes with tripodal ligands of the tpa family (tpa = tris(2-pyridylmethyl)amine) was synthesized and X-ray characterized. These complexes efficiently catalyzed benzylic C-H oxidation of various substrates with peracetic acid, affording the corresponding ketones in high yields (up to 100%), at < 1 mol% catalyst loadings. Complex [(tpa)Pd(OAc)](PF₆) with the least sterically demanding ligand tpa demonstrated the highest substrate conversions and ketone selectivities. Preliminary mechanistic data provided evidence in favor of metal complex-mediated rate-limiting benzylic C-H bond cleavage by an electron-deficient oxidant.

Dalton Transactions published new progress about 68569-14-2. 68569-14-2 belongs to nitriles-buliding-blocks, auxiliary class Palladium, name is Tetrakis(acetonitrile)palladium(II) Ditriflate, and the molecular formula is C10H12F6N4O6PdS2, Category: nitriles-buliding-blocks.

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

Lacivita, Enza published the artcileStructure-activity relationship study towards non-peptidic positron emission tomography (PET) radiotracer for gastrin releasing peptide receptors: Development of [¹⁸F] (S)-3-(1H-indol-3-yl)-N-[1-[5-(2-fluoroethoxy)pyridin-2-yl]cyclohexylmethyl]-2-methyl-2-[3-(4-nitrophenyl)ureido]propionamide, Quality Control of 337965-61-4, the publication is Bioorganic & Medicinal Chemistry (2017), 25(1), 277-292, database is CAplus and MEDLINE.

Gastrin-releasing peptide receptors (GRP-Rs, also known as bombesin 2 receptors) are overexpressed in a variety of human cancers, including prostate cancer, and therefore they represent a promising target for in vivo imaging of tumors using positron emission tomog. (PET). Structural modifications of the non-peptidic GRP-R antagonist PD-176252 ((S)-1a) led to the identification of the fluorinated analog (S)-3-(1H-indol-3-yl)-N-[1-[5-(2-fluoroethoxy)pyridin-2-yl]cyclohexylmethyl]-2-methyl-2-[3-(4-nitrophenyl)ureido]propionamide ((S)-1m) that showed high affinity and antagonistic properties for GRP-R. This antagonist was stable in rat plasma and towards microsomal oxidative metabolism in vitro. (S)-1m was successfully radiolabeled with fluorine-18 through a conventional radiochem. procedure. [¹⁸F](S)-1m showed high affinity and displaceable interaction for GRP-Rs in PC3 cells in vitro.

Bioorganic & Medicinal Chemistry published new progress about 337965-61-4. 337965-61-4 belongs to nitriles-buliding-blocks, auxiliary class Pyridine,Fluoride,Nitrile, name is 2-(6-Fluoropyridin-3-yl)acetonitrile, and the molecular formula is C7H5FN2, Quality Control of 337965-61-4.

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

Kwiatkowski, Jacek published the artcileHighly Enantioselective Michael Addition of 2-Fluoro-1,3-diketones to Nitroalkenes, Formula: C9H6N2O2, the publication is European Journal of Organic Chemistry (2015), 2015(2), 320-324, database is CAplus.

The highly enantioselective Michael addition of 2-fluoro-1,3-diketones R¹C(O)CHFC(O)R² (R¹ = Ph, phenanthren-3-yl, furan-2-yl, 4-BrC₆H₄; R² = Me, i-Pr) to nitroalkenes R³CH:CHNO₂ (R³ = i-Pr, Ph, 2-FC₆H₄, etc.) was developed, and the desired adducts I were obtained in good chem. yields with good diastereoselectivities and excellent enantioselectivities. Subsequent stereoselective reduction of the carbonyl groups led to the preparation of a functionalized fluoro isostere of glycerol that contains four continuous stereogenic centers.

European Journal of Organic Chemistry 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, Formula: C9H6N2O2.

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

Li, Feng published the artcileSynthesis of ethyl 4-cyanotetrahydropyran-4-carboxylate via solid-liquid phase transfer catalysis, Application of Ethyl 4-cyanotetrahydro-2H-pyran-4-carboxylate, the publication is Jingxi Huagong (2008), 25(6), 614-617, database is CAplus.

Eethyl 4-cyanotetrahydropyran-4-carboxylate was synthesized from di-(β-chloroethyl) ether, Et cyanoacetate and K₂CO₃ via solid-liquid phase transfer catalysis, using DMF as solvent and dodecyltrimethylammonium bromide (DTMAB) as catalyst [n(DTMAB):n(Et cyanoacetate) = 0.05:1]. The water produced was separated, sp. surface area of potassium carbonate was 6.72 × 10⁴ m^-1 and reaction temperature was 153°, the yield was 90.6%, the reaction time was 2 h. The mechanism and kinetics of the reaction were also studied. The reaction could be described by the pseudo-second-order kinetics. With DTMAB, CTMAB, TBAB and BETAC as catalysts, K_app were 0.01336, 0.01158, 0.00343. and 0.001738 L/(mol/min) respctively. The activation energy of di-(β-chloroethyl) ether and Et cyanoacetate was 58.94 kJ/mol.

Jingxi Huagong published new progress about 30431-99-3. 30431-99-3 belongs to nitriles-buliding-blocks, auxiliary class Tetrahydropyran,Nitrile,Ester, name is Ethyl 4-cyanotetrahydro-2H-pyran-4-carboxylate, and the molecular formula is C9H13NO3, Application of Ethyl 4-cyanotetrahydro-2H-pyran-4-carboxylate.

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