Tag: M.W=100-150

Li, Xiangjun published the artcileThermo-Enhanced Photocatalytic Activity in Aerobic Oxidative Coupling of Amines to Imines over Cu-Doped MIL-125-NH₂, Product Details of C8H11NO, the publication is Asian Journal of Organic Chemistry (2021), 10(11), 2895-2901, database is CAplus.

Photocatalytic oxidation of raw organic mols. to value-added chems. provides a cost-effective and sustainable strategy in organic synthesis. In this work, a series of Cu-doped MIL-125-NH₂ with narrower band gaps were synthesized by a one-pot hydrothermal method and used as photocatalysts for thermo-enhanced aerobic oxidative coupling of amines to imines under visible light irradiation With optimal doping content, the conversion of benzylamine over MIL-125-NH₂/Cu_2% can reach 100% at 60°C under visible light irradiation for 8 h using mol. oxygen as oxidant. It is proved that doping MIL-125-NH₂ with a suitable Cu content can broaden the visible light absorption range, promote the separation of photo-induced charge carriers and improve the photocatalytic performance. Moreover, the increase of reaction temperature of the photocatalytic system promotes the performance. Free radical capture experiments and ESR tests show that holes and superoxide free radicals are the main active species. Such an excellent photocatalytic performance can be attributed to the strong light absorption and more efficient electron-hole separation efficiency via the Cu-doping strategy in MIL-125-NH₂ catalysts.

Asian Journal of Organic Chemistry published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C8H11NO, Product Details of C8H11NO.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Wang, Yixuan published the artcileWidely targeted metabolomics analysis of enriched secondary metabolites and determination of their corresponding antioxidant activities in Elaeagnus angustifolia var. orientalis (L.)Kuntze fruit juice enhanced by Bifidobacterium animalis subsp. Lactis HN-3 fermentation, Recommanded Product: 1,2-Dimethoxybenzene, the publication is Food Chemistry (2022), 131568, database is CAplus and MEDLINE.

Elaeagnus angustifolia var. orientalis (L.)Kuntze fruit contains a large number of naturally occurring mols. present as glycoside, methylated, and Me ester conjugates, which should be hydolyzed or transformed to become bioactive forms. For this purpose, Bifidobacterium animalis subsp. lactis HN-3 was selected to ferment Elaeagnus angustifolia var. orientalis (L.)Kuntze fruit juice (EOJ). After fermentation, the total phenolic content (TPC) and antioxidant capacity of the EOJ increased significantly compared to the non-fermented EOJ. Using widely-targeted metabolomics anal., polyphenolic compounds involved in the flavonoid biosynthetic pathway were determined to be up-regulated in the fermented EOJ. In addition, the metabolites generated by 8 deglycosidation, 5 demethylation, 5 hydrogenation, and 28 other reactions were detected in higher concentrations in the fermented EOJ compared to the non-fermented EOJ. Interestingly, these up-regulated metabolites have higher antioxidant and other biol. activities than their metabolic precursors, which provide a theor. basis for the development of Bifidobacterium-fermented plant products with stronger functional activities.

Food Chemistry published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C9H9F5Si, Recommanded Product: 1,2-Dimethoxybenzene.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Wang, Chao published the artcileSalting-out re-distillation combined with sensory-directed analysis to recover odor-active compounds for improving the flavor quality of instant Pu-erh tea, Safety of 1,2-Dimethoxybenzene, the publication is Food Chemistry: X (2022), 100310, database is CAplus and MEDLINE.

The objective of this study was to develop an effective recovery technol. of odor-active compounds (OACs) to improve the flavor quality of instant Pu-erh tea (IPT) based on their released behaviors. Salting-out re-distillation (SRD) combined with sensory-directed anal. was developed. The contributing factors, including the soaking time of tea, recovery volume of condensed water of first distillation, amount of sodium chloride, recovery volume of condensed water of SRD, and re-use times of sodium chloride, were studied systematically. Under optimized conditions, 41 OACs were recovered in the first distillation, and the total recovery rate was 83.94%. Forty-one OACs were recovered via SRD, and the total recovery rate reached 72.29%, significantly better than membrane method (33.46%). The IPT prepared by adding OACs that recovered via SRD showed strong aroma attributes intensities and good coordination. This developed method can provide a more effective scheme to improve the flavor quality of IPT.

Food Chemistry: X published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C13H16O2, Safety of 1,2-Dimethoxybenzene.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Wang, Chao published the artcileEffects of electrostatic spray drying on sensory qualities, aroma profile and microstructural features of instant Pu-erh tea, Category: ethers-buliding-blocks, the publication is Food Chemistry (2022), 373(Part_B), 131546, database is CAplus and MEDLINE.

The sensory qualities, aroma profile, and microstructural features of instant Pu-erh teas (IPTs) produced by electrostatic spray drying (ESD) were evaluated by sensory and instrumental analyses and compared with those produced by other drying methods (freeze-drying [FD], vacuum drying [VD], and conventional spray drying [CSD]). The sensory qualities of ESDIPT were similar to those of FDIPT, and better than those of VDIPT and CSDIPT. Eighty-eight volatiles were detected in all IPTs, and 45 odor-active compounds were captured. Most of their OAVs were higher in ESDIPT than in VDIPT and CSDIPT but were lower than those in FDIPT. Dihydro-β-ionone had the highest OAV. Aroma recombination experiments were performed to verify the identification results. ESDIPT was present in the shape of microspheres with many regular concave surfaces, which was different from those treated by other drying methods. In terms of sensory quality and productivity, ESD would be a potential method for IPT production

Food Chemistry published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C20H17FO4S, Category: ethers-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Yan, Xiao-Biao published the artcileNi-catalyzed hydroalkylation of olefins with N-sulfonyl amines, Formula: C8H11NO, the publication is Nature Communications (2021), 12(1), 5881, database is CAplus and MEDLINE.

Herein, a reliable method for accessing α-branched amines RNHCH(R¹)(CH₂)₂R² (R = (4-methylphenyl)sulfonyl, (2,4,6-trimethylphenyl)sulfonyl; R¹ = Ph, 4-morpholinophenyl, furan-2-yl, etc.; R² = Ph, 3-fluorophenyl, 9H-fluoren-2-yl, etc.) via nickel-catalyzed hydroalkylation reactions was reported. Specifically, by using bis(cyclooctadiene)nickel (Ni(cod)₂) together with a phosphine ligand, a formal C(sp³)-H bond insertion reaction between olefins CH₂=CHR² and N-sulfonyl amines RNHCH₂R¹ without the need for an external hydride source was achieved. The amine not only provides the alkyl motif but also delivers hydride to the olefin by means of a nickel-engaged β-hydride elimination/reductive elimination process. This method provides a platform for constructing chiral α-branched amines (R/S)-RNHCH(R¹)CH₂CH₂R² by using a P-chiral ligand, demonstrating its potential utility in organic synthesis. Notably, a sulfonamidyl boronate complex formed in situ under basic conditions promotes ring-opening of the azanickellacycle reaction intermediate, leading to a significant improvement of the catalytic efficiency.

Nature Communications published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C19H15NO3, Formula: C8H11NO.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Starace, Anne K. published the artcilePredicting Catalytic Pyrolysis Aromatic Selectivity from Pyrolysis Vapor Composition Using Mass Spectra Coupled with Statistical Analysis, Recommanded Product: 1,2-Dimethoxybenzene, the publication is ACS Sustainable Chemistry & Engineering (2022), 10(1), 234-244, database is CAplus.

The behavior of fast pyrolysis (FP) and catalytic FP (CFP) of 20 renewable feedstocks was studied in a microscale reactor with mol. beam mass spectral anal. of products generated. A partial least-squares (PLS) model was constructed based on the FP vapor spectra that predicts the aromatic selectivity when upgrading over a ZSM-5 catalyst. Addnl., principal component anal. of both FP and CFP spectra was performed for comprehensive spectral anal. This work highlighted the value of vapor-phase mass spectral screening to predict the subsequent feedstock performance and demonstrated that the quantity of coke deposited on the catalyst is not a reliable measure of catalyst deactivation when the feedstock type is varied.

ACS Sustainable Chemistry & Engineering published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C14H14, Recommanded Product: 1,2-Dimethoxybenzene.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Schade, N. published the artcileEvaluation of Novel Substituted Furopyridines as Inhibitors of Protein Kinases Related to Tau Pathology in Alzheimer’s Disease, Recommanded Product: (2-Methoxyphenyl)methanamine, the publication is Medicinal Chemistry (Sharjah, United Arab Emirates) (2021), 17(8), 844-855, database is CAplus and MEDLINE.

A novel furopyridines with various substitution patterns were synthezised and evaluated for protein kinases inhibition studies related to tau pathol. Furopyridine derivatives were synthesized and purified using column chromatog. The protein kinase inhibitory properties were determined in ATP-competition assays with determined affinity constants for the most active compounds The compounds were prepared in simple two-component reactions of substituted 1,4- dihydropyridines and resp. quinones to obtain various substitutions of the mol. furopyridine scaffold. The substituent effects on the determined kinase inhibitory properties of cdk1, cdk2, Fyn, JNK3 and gsk-3β are discussed. Various 3-substitutions were found most sensitive for the protein kinase inhibition depending on the length, nature and a substituent positioning within. These compounds were identified as inhibitors of several kinases as a tool to potentially combat the disease progress in a multitargeting approach.

Medicinal Chemistry (Sharjah, United Arab Emirates) published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C8H11NO, Recommanded Product: (2-Methoxyphenyl)methanamine.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Yamamoto, Yuki published the artcileOne-pot construction of diverse β-lactam scaffolds via the green oxidation of amines and its application to the diastereoselective synthesis of β-amino acids, Quality Control of 6850-57-3, the publication is Journal of Organic Chemistry (2021), 86(17), 11571-11582, database is CAplus and MEDLINE.

In this study, a simple one-pot construction of β-lactam scaffolds was successfully achieved via 4,6-dihydroxysalicylic acid-catalyzed organocatalytic oxidation of amines to imines using mol. oxygen. Although some imines are highly unstable and difficult to isolate by conventional methods, the organocatalytic oxidation of amines described herein, followed by their direct reaction with acyl chlorides in the presence of a base, afforded a series of new β-lactam derivatives with excellent cis selectivity, which could not be synthesized and isolated by previously reported methods. Thus, this one-pot protocol will be one of the powerful methods applicable to the synthesis of various potential drug candidates and functional mols. Furthermore, the subsequent hydrolysis of these β-lactams successfully afforded the corresponding β-amino acids as almost single diastereomers in up to 99% yields.

Journal of Organic Chemistry published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C44H28ClFeN4, Quality Control of 6850-57-3.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Rahman, Shafikur Md. published the artcileDiscovery of First-in-Class Peptidomimetic Neurolysin Activators Possessing Enhanced Brain Penetration and Stability, Synthetic Route of 6850-57-3, the publication is Journal of Medicinal Chemistry (2021), 64(17), 12705-12722, database is CAplus and MEDLINE.

Peptidase neurolysin (Nln) is an enzyme that functions to cleave various neuropeptides. Upregulation of Nln after stroke has identified the enzyme as a critical endogenous cerebroprotective mechanism and validated target for the treatment of ischemic stroke. Overexpression of Nln in a mouse model of stroke results in dramatic improvement of stroke outcomes, while pharmacol. inhibition aggravates them. Activation of Nln has therefore emerged as an intriguing target for drug discovery efforts for ischemic stroke. Herein, we report the discovery and hit-to-lead optimization of first-in-class Nln activators based on histidine-containing dipeptide hits identified from a virtual screen. Adopting a peptidomimetic approach provided lead compounds that retain the pharmacophoric histidine moiety and possess single-digit micromolar potency over 40-fold greater than the hit scaffolds. These compounds exhibit 5-fold increased brain penetration, significant selectivity over highly homologous peptidases, greater than 65-fold increase in mouse brain stability, and ‘drug-like’ fraction unbound in the brain.

Journal of Medicinal Chemistry published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C8H11NO, Synthetic Route of 6850-57-3.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Yadav, Naveen published the artcileRapid Access to Arylated and Allylated Cyclopropanes via Bronsted Acid-Catalyzed Dehydrative Coupling of Cyclopropylcarbinols, HPLC of Formula: 91-16-7, the publication is Journal of Organic Chemistry (2022), 87(10), 6886-6901, database is CAplus and MEDLINE.

A regioselective protocol for the synthesis of cyclopropyl derivatives that relies on Brookhart acid-catalyzed dehydrative coupling over substituted cyclopropylcarbinols without rearrangement is reported herein. The reactions proceed promptly at 25° with only 2.0 mol % catalyst loading and produce the cyclopropyl derivatives in excellent yields. This method is well tolerated with a vast range of cyclopropylcarbinols including aliphatic cyclopropylcarbinols, where no elimination product was obtained, demonstrating the protocol’s utility. Further, the Hammett correlation suggested the formation of a cyclopropylcarbinyl cation followed by a coupling reaction. An extremely effective gram-scale reaction has also been demonstrated with a high turnover number

Journal of Organic Chemistry published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C3H9ClOS, HPLC of Formula: 91-16-7.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem