Category: 2051-95-8

Wang, Jin published the artcileSodium Aminodiboranate, a New Reagent for Chemoselective Reduction of Aldehydes and Ketones to Alcohols, Recommanded Product: 3-Benzoylpropionicacid, the publication is Synlett (2021), 32(11), 1104-1108, database is CAplus.

Sodium aminodiboranate (NaNH₂(BH₃)₂, NaADBH) is a new member of the old borane family, which exhibits superior performance in chemoselective reduction Exptl. results show that NaADBH can rapidly reduce aldehydes RCHO (R = 1-octyl, pyridin-2-yl, 3-cyclohexenyl, etc.) and ketones R¹C(O)R² (R¹ = 2-phenylethenyl, Ph, 9-fluorenyl, etc.; R¹R² = -(CH₂)₅) to the corresponding alcs. R/R¹C(OH)R² in high efficiency and selectivity under mild conditions. There are little steric and electronic effects on this reduction

Synlett published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C6H3ClFNO2, Recommanded Product: 3-Benzoylpropionicacid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Linkova, Elena I. published the artcileThe study of the reaction paths of 4-aryl-4-oxobutanoic acids with terminal aliphatic N,N-diamines, HPLC of Formula: 2051-95-8, the publication is Arabian Journal of Chemistry (2021), 14(10), 103350, database is CAplus.

Bicyclic pyrroloimidazolones and pyrrolopyrimidinones were synthesized by reacting aryl-substituted 4-oxobutanoic acids with aliphatic binucleophiles with different alkyl chain lengths using a sealed vessels reactor (SVR). By varying the synthesis conditions, the reaction path was studied and formed intermediates were isolated. The structures of the obtained compounds were proved using a set of FTIR, ¹H, ¹³C NMR spectroscopy methods and X-ray diffraction data. Temperature and pressure changes data collected during the syntheses were analyzed and assigned to the processes which occurred inside the vials. It was shown that the reaction of 4-aryl-4-oxobutanoic acids with terminal aliphatic N,N-diamines starts from the formation of corresponded (AlkN₂)²⁺An^2- salts followed by two subsequent dehydration processes giving rise to the corresponding amides and, finally, heterocycles of pyrroloimidazolone and pyrrolopyrimidinone series.

Arabian Journal of Chemistry published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C10H10O3, HPLC of Formula: 2051-95-8.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Zhang, Benxiang published the artcileNi-electrocatalytic Csp³-Csp³ doubly decarboxylative coupling, Recommanded Product: 3-Benzoylpropionicacid, the publication is Nature (London, United Kingdom) (2022), 606(7913), 313-318, database is CAplus and MEDLINE.

Here, it was shown how a mildly reductive Ni-electrocatalytic system could couple two different carboxylates by means of in situ generated redox-active esters, termed doubly decarboxylative cross-coupling. This operationally simple method was used to heterocouple primary, secondary and even certain tertiary redox-active esters, thereby opening up a powerful new approach for synthesis. The reaction, which cannot be mimicked using stoichiometric metal reductants or photochem. conditions, tolerated a range of functional groups, was scalable and was used for the synthesis of 32 known compounds, reducing overall step counted by 73%.

Nature (London, United Kingdom) published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is Al2H32O28S3, Recommanded Product: 3-Benzoylpropionicacid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Yang, Ruige published the artcileSemisynthesis and neurotrophic activity studies of novel neomajucin/majucin derivatives as neurotrophin small molecule mimetics, Product Details of C10H10O3, the publication is Bioorganic & Medicinal Chemistry Letters (2022), 128580, database is CAplus and MEDLINE.

Majucin-type Illicium sesquiterpenes with potent neurotrophic activity are considered to be promising candidates for the treatment of various neurodegenerative disease. Owing to the low-abundance metabolites in Illicium genus, there are few studies on their structural modifications, structure-activity relationships, and pharmacophoric motif. Herein, structural modifications were conducted on the hydroxyl groups at C-3 and C-6 positions of two majucin-type compounds neomajucin (1, I) and majucin (2, II), and 39 neomajucin/majucin based esters were synthesized and evaluated for their neurite outgrowth-promoting activities. Many of the target derivatives displayed more potent neurite outgrowth-promoting activity than their precursors. Some interesting structure-activity relationships (SARs) were also observed Moreover, compound 1a (III) showed good neuroprotective effect on MPP⁺-induced PC12 cell damage. Finally, compounds 1a and 3a (IV) exhibited relatively no cytotoxicity to normal human H9C2 cardiac cells. This work will shed light on the development of neomajucin/majucin derivatives as potential neurotrophic agents.

Bioorganic & Medicinal Chemistry Letters published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C8H5F3O2S, Product Details of C10H10O3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Xu, Zhongrong published the artcileTunable Trifunctionalization of Tertiary Enaminones for the Regioselective and Metal-Free Synthesis of Discrete and Proximal Phosphoryl Nitriles, Application In Synthesis of 2051-95-8, the publication is Organic Letters (2021), 23(13), 5049-5053, database is CAplus and MEDLINE.

Tertiary keto enamines RCOCH:CHNMe₂ undergo organocatalytic regiodivergent addition with secondary phosphine oxides Ar₂P(O)H, giving phosphinyl ketonitriles RCOCH(POAr₂)CH₂CN (4) or RCOCH₂CH(CN)P(O)Ar₂ (5) depending on the catalyst, either Bu₄NOH or AcOH, resp. This paper reports an unprecedented trifunctionalization of tertiary enaminones for the synthesis phosphoryl nitriles by the reactions of enaminones with diarylphosphine oxides and trimethylsilyl cyanide (TMSCN) without the use of any metal reagent. Employing tetra-Bu ammonium hydroxide (TBAH) as the catalyst (0.2 equiv) enables discrete cyanophosphonation, giving ¦Â-phosphinyl nitriles 4. On the other hand, selective proximal cyanophosphonation, yielding ¦Á-phosphinyl nitriles 5, has been realized in the presence of acetic acid only (AcOH).

Organic Letters published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C10H11NO4, Application In Synthesis of 2051-95-8.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Kandile, Nadia G. published the artcileQuinoline anhydride derivatives cross-linked chitosan hydrogels for potential use in biomedical and metal ions adsorption, HPLC of Formula: 2051-95-8, the publication is Polymer Bulletin (Heidelberg, Germany) (2022), 79(4), 2461-2486, database is CAplus.

Chem. modification of chitosan is one of the methods to increase the reactivity of chitosan toward many applications. The presence of primary amino groups in chitosan permits its modifications with different agents. New three-dimensional network structure hydrogels (Va-f) and (Va-f)G were prepared via reaction of chitosan with 3-(carboxymethyl)-2-aryl-6-alkylquinoline-4-carboxylic acid anhydride derivatives (IVa-f) in the absence and/or presence of glutaraldehyde as crosslinking agent, resp. The hydrogels were characterized using FTIR spectroscopy, X-ray diffraction, solubility, swelling behavior, thermal anal., surface morphol. and biodegradability. Evaluation of the hydrogels toward antibacterial activity, load and release of lidocaine and efficiency of metal ions uptake (Co+2 and Hg+2) was investigated. Hydrogel (Ve) revealed the highest activities toward (Gram -Ve) E. coli and Proteus and (Gram +Ve) S. aureus and B. subtilis bacteria than chitosan. However, hydrogel (Ve)G revealed the highest drug loading and release and showed also the potent efficiency toward metal ions uptake for Co+2 and Hg+2.

Polymer Bulletin (Heidelberg, Germany) published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C10H10O3, HPLC of Formula: 2051-95-8.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Whyte, Andrew published the artcileAsymmetric Synthesis of Boryl-Functionalized Cyclobutanols, Name: 3-Benzoylpropionicacid, the publication is ACS Catalysis (2019), 9(10), 9253-9258, database is CAplus.

A diastereo- and enantioselective synthesis of B-containing cyclobutanols is reported. The authors exploit an enantioselective borylcupration to generate a chiral benzylic Cu intermediate that is intercepted with a proximally tethered ketone. The scaffolds contain an all-C quaternary center with a modular boronate moiety which allows access to a variety of synthetically valuable functional groups. This work represents an asym. approach to monocyclic cyclobutanols and highlights the utility of Cu catalysis in the generation of small-sized rings.

ACS Catalysis published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C5H11NO2S, Name: 3-Benzoylpropionicacid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Zhao, Wenfeng published the artcileInsights into ammonia borane enabled green synthesis of N-substituted lactams from biomass-derived keto-acids and amines, COA of Formula: C10H10O3, the publication is ACS Sustainable Chemistry & Engineering (2021), 9(12), 4377-4382, database is CAplus.

The reductive amination/cyclization of biomass-based keto-acids and amines to lactams under mild condition with ammonia borane (NH₃-BH₃) as hydrogen donor in the absence of additives was reported herein for the first time and was demonstrated with 22 examples affording lactams in moderate to excellent yield. A combination of in situ NMR and control experiments indicated that reductive amination occurs via imine formation and double hydrogen transfer from NH₃-BH₃ during the reaction.

ACS Sustainable Chemistry & Engineering published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C12H15NO, COA of Formula: C10H10O3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Scaringi, Simone published the artcileKinetically Controlled Stereoselective Access to Branched 1,3-Dienes by Ru-Catalyzed Remote Conjugative Isomerization, Quality Control of 2051-95-8, the publication is ACS Catalysis (2021), 11(13), 7970-7977, database is CAplus.

A Ru-catalyzed conjugative isomerization of remote alkenes CH₂=CH(CH₂)₂(CH₂)_nC(=CH₂)R [n = 0, 1, 3; R = cyclohexyl, 4-phenylphenyl, 6-methoxypyridin-3-yl, adamantan-1-yl, (4S)-4-(prop-1-en-2-yl)cyclohex-1-en-1-yl, 1-phenyl-1H-pyrazol-4-yl, etc.] that affords branched 1,3-dienes E-CH₃CH₂(CH₂)_nCH=CHC(=CH)R is described. These kinetic products are obtained in high yields, good levels of regiocontrol, and high stereoselectivity. A broad range of functional groups and heterocycles are compatible with the mild reaction conditions, and isomerization is sustained over long distances. Control experiments support a metal-hydride mechanism consisting of iterative migratory insertions/¦Â-H eliminations, which is initiated preferentially at the terminal olefinic site. Two one-pot multimetallic selective catalytic sequences using [Ru/Cu] and [Ru/Rh] combinations have been developed to illustrate the synthetic potential of the process.

ACS Catalysis published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C10H10O3, Quality Control of 2051-95-8.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Babu, B. Suresh published the artcileKinetic and mechanistic studies of cerium(III)- catalysed oxidation of 4-oxo acids by bromate in acid medium: nonlinear Hammett plots, Name: 3-Benzoylpropionicacid, the publication is Current Science (2021), 121(5), 651-659, database is CAplus.

The kinetic and mechanistic aspects of cerium(III)- catalyzed oxidation of 4-oxo acids by bromate (uncon taminated with bromine) in an acid medium have been studied. The reaction exhibited first-order each in [bromate] and [acid], fractional order each in [oxo acid] and [cerium(III)], and also showed solvent isotope effect of 0.55 (k(H₂O)/ k (D₂O)). The reaction did not induce polymerization and the induction period was not observed The influence of ionic strength on the rate was negligible, while increase in reaction rate was found by lowering the dielec. constant of the me dium. The reaction rate was affected by the presence of substituents in the reaction center. Increase in the reaction rate by electron releasing substituents and decrease in the rate by the presence of electron-with drawing substituents were observed The Hammett plots were characterized by smooth curvature; how ever, linearity was observed using exalted ¦Ò values. A neg. value for the reaction constant was observed The isokinetic relationship was evaluated from the Arrhenius and Hammett plots. The formation of a ternary complex between oxidant, substrate and catalyst has been proposed in the mechanism. Based on the proposed mechanism, the rate law has been deri ved. The formation of a ¦Ð-complex between Ce(III) and -ene of the enol form of oxo acid has been pro posed. This reaction finds application in the synthesis of substituted benzoic acids and involves the pheno mena of intramol. catalysis and neighboring group participation.

Current Science published new progress about 2051-95-8. 2051-95-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ketone, name is 3-Benzoylpropionicacid, and the molecular formula is C10H10O3, Name: 3-Benzoylpropionicacid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia