Month: November 2022

Iwasaki, Machio published the artcileE.S.R. spectra of γ-irradiated polycrystalline powders of some fluorine-containing compounds, Product Details of C2H3F2NO, the main research area is .

The powder spectra of γ-irradiated salts and amides of some fluorinated acids were interpreted, based on the spectral shapes of the α-F hyperfine-coupling line. Because of the large anisotropy of the α-F coupling tensor, it was possible to observe the shoulders corresponding to the maximum principal value of the coupling tensor. The separation between the wing patterns and the wing hyperfine structures made it possible to identify the radical species produced. The probable radicals were the ones formed by the removal of the atoms attached to the α C atom.

Journal of Chemical Physics published new progress about Gamma ray. 359-38-6 belongs to class amides-buliding-blocks, name is 2,2-Difluoroacetamide, and the molecular formula is C2H3F2NO, Product Details of C2H3F2NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Nimje, Roshan Y. published the artcileDevelopment of a Stereoselective and Scalable Synthesis for the Potent Indoleamine 2,3-Dioxygenase 1 (IDO1) Inhibitor, BMT-297376; N-((R)-1-((cis)-4-(3-(Difluoromethyl)-2-methoxypyridin-4-yl)cyclohexyl)propyl)-6-methoxynicotinamide, Quality Control of 343338-28-3, the main research area is difluoromethyl methoxypyridinyl cyclohexyl methoxynicotinamide preparation enantioselective indoleamine dioxygenase inhibitor.

The current work describes a stereoselective and scalable route to N-((R)-1-((cis)-4-(3-(difluoromethyl)-2-methoxypyridin-4-yl)cyclohexyl)propyl)-6-methoxynicotinamide I from readily available 1,4-dioxaspiro[4.5]decan-8-one. The developed process encompasses an efficient 1,4-trans-selective synthesis of (trans)-4-(3-(difluoromethyl)-2-methoxypyridin-4-yl)cyclohexyl methanesulfonate as the key intermediate and the use of Ellman sulfinamine methodol. to install an alkyl amine in a stereoselective manner. Various synthetic routes were screened to accomplish a stereoselective and scalable protocol to access the title compound I. This advancement enabled a competent route to the title compound in an enantioselective, safe, cost-effective, and scalable manner.

Organic Process Research & Development published new progress about Cyanation. 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Quality Control of 343338-28-3.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Zhang, Yaqi published the artcileEnantioselective Syntheses of Axially Chiral Phosphonates or Phosphine Oxides via Asymmetric Suzuki Reactions with Chiral Sulfinamide Monophosphine Ligands, Synthetic Route of 343338-28-3, the main research area is stereoselective Suzuki chiral sulfinamide phosphine oxide phosphonate chiral preparation.

A class of chiral sulfinamide monophosphine ligands Ming-Phos were firstly employed in the asym. Suzuki coupling reactions. Using the in-situ formed catalyst from PdCl2 and (R, SS)-M07, 22 axially chiral phosphonates or phosphine oxides were successfully synthesized in 29-99% yields with up to 98% ee. This method provides a simple and efficient protocol for the synthesis of axially chiral biaryl monophosphine oxides.

ChemistrySelect published new progress about Chirality. 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Synthetic Route of 343338-28-3.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Kamimura, Akio published the artcileA study on the stereochemistry of direct conversion of polyamides to hydroxyesters using monomeric secondary chiral amines as a model compound, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide, the main research area is stereochem mechanism polyamide hydroxyester secondary chiral amine model compound.

Stereochem. of direct conversion of polyamides to hydroxyesters was investigated using model compounds Optically active secondary-alkyl amines underwent the conversion to corresponding secondary alcs. in moderate yields by treatment with supercritical methanol in the presence of glycolic acid. The reaction progressed through almost completely stereochem. inversion to give secondary alcs. in high yields. The substitution reaction of amino group to hydroxyl group progressed through SN2 transition state accompanying with stereoinversion.

Polymer Degradation and Stability published new progress about Chirality. 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Tang, Jing-Jing published the artcileVisible-Light-Promoted Iron-Catalyzed N-Arylation of Dioxazolones with Arylboronic Acids, Recommanded Product: 4-Methoxy-N-phenylbenzamide, the main research area is benzamide preparation; arylboronic acid dioxazolone arylation visible light iron catalyst.

Synthesis of benzamides ArC(O)NAr1 [Ar = Ph, 4-FC6H4, furan-2-yl, etc.; Ar1 = Ph, 4-MeC6H4, 4-BrC6H4, etc.] via visible-light-promoted iron salt-catalyzed N-arylation of arylboronic acids and bench-stable dioxazolones was achieved efficiently under external photosensitizer-free conditions. This reaction featured high reactivity, wide substrate scope, good functional group tolerance, simple operation procedure, and mild reaction conditions. Preliminary mechanistic investigations were conducted to support a radical pathway. This method may contribute to shift the paradigm of iron-catalyzed C-N bond construction and nitrene transfer chem.

ACS Catalysis published new progress about Arylation. 7465-88-5 belongs to class amides-buliding-blocks, name is 4-Methoxy-N-phenylbenzamide, and the molecular formula is C14H13NO2, Recommanded Product: 4-Methoxy-N-phenylbenzamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Li, Ming-Jun published the artcileThe deleterious effects of N,N-dimethylformamide on liver: A mini-review, COA of Formula: C2H5NO, the main research area is review liver cell proliferation differentiation apoptosis DMF; Cytochrome P4502E1; Hepatotoxicity; N,N-dimethylformamide; N-methylformamide; Occupational exposure limit; Oxidative stress.

N,N-dimethylformamide (DMF) is a versatile solvent with wide industrial applications. Evidences from animal studies and occupational poisoning cases have clearly demonstrated that DMF exposure can lead to different degrees of liver damage. It is noteworthy that DMF below the threshold limit value (TLV) may also cause liver injury in some sensitive populations. Unfortunately, the underlying mechanisms by which DMF induces hepatotoxicity remain largely unknown, despite considerable attention has been drawn to the hepatotoxic effects of DMF. Although some pilot studies have provided some evidences supporting the involvement of oxidative stress, the disturbance of gut microbiota and calcium homeostasis, etc, the causal roles of these factors on the onset of DMF-induced hepatotoxicity need to be confirmed. This article reviews the current knowledge about the deleterious effects of DMF on the liver.

Chemico-Biological Interactions published new progress about Apoptosis. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, COA of Formula: C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Fan, Xuelin published the artcileHigh-performance ultra-short channel field-effect transistor using solution-processable colloidal nanocrystals, Recommanded Product: N-Methylformamide, the main research area is ultrashort channel field effect transistor solution processable colloidal nanocrystal.

The authors demonstrate high-mobility solution-processed inorganic field-effect transistors (FETs) with ultra-short channel (USC) length using semiconductor CdSe nanocrystals (NCs). Capping of the NCs with hybrid inorganic-organic CdCl3–butylamine ligands enables coarsening of the NCs during annealing at a moderate temperature, resulting in the devices having good transport characteristics with electron mobilities in the saturation regime reaching 8 cm2 V-1 s-1. Solution-based processing of the NCs and fabrication of thin films involve neither harsh conditions nor the use of hydrazine. Employing photolithog. methods, the authors fabricated FETs with a vertical overlap of source and drain electrodes to achieve a submicrometer channel length. Because of a short channel length, the FETs show a normalized transconductance of 4.2 m V-1 s-1 with a high on/off ratio of 105.

Journal of Physical Chemistry Letters published new progress about Annealing. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Recommanded Product: N-Methylformamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Ellis, Ryan G. published the artcileHybrid Ligand Exchange of Cu(In,Ga)S2 Nanoparticles for Carbon Impurity Removal in Solution-Processed Photovoltaics, Recommanded Product: N-Methylformamide, the main research area is ligand exchange copper indium gallium sulfide nanoparticle solar cell.

The solution processing of Cu(In,Ga)(S,Se)2 photovoltaics from colloidal nanoparticles has long suffered from deleterious carbonaceous residues originating from long chain native ligands. This impurity carbon has been observed to hinder grain formation during selenization and leave a discrete residue layer between the absorber layer and the back contact. In this work, organic and inorganic ligand exchanges were investigated to remove tightly bound native oleylamine ligands from Cu(In,Ga)S2 nanoparticles, thereby removing the source of carbon contamination. However, incomplete ligand removal, poor colloidal stability, and/or selective metal etching were observed for these methods. As such, an exhaustive hybrid organic/inorganic ligand exchange was developed to bypass the limitations of individual methods. A combination of microwave-assisted solvothermal pyridine ligand stripping followed by inorganic capping with diammonium sulfide was developed and yielded greater than 98% removal of native ligands via a rapid process. Despite the aggressive ligand removal, the nanoparticle stoichiometry remained largely unaffected when making use of the hybrid ligand exchange. Furthermore, highly stable colloidal ink formulations using nontoxic DMSO were developed, supporting stable nanoparticle mass concentrations exceeding 200 mg/mL. Scalable blade coating of the ligand-exchanged nanoparticle inks yielded remarkably smooth and microcrack free films with an RMS roughness less than 7 nm. Selenization of ligand-exchanged nanoparticle films afforded substantially improved grain growth as compared to conventional nonligand-exchanged methods, yielding an absolute improvement in device efficiency of 2.8%. Hybrid ligand exchange nanoparticle-based devices reached total area power conversion efficiencies of 12.0%, demonstrating the feasibility and promise of ligand-exchanged colloidal nanoparticles for the solution processing of Cu(In,Ga)(S,Se)2 photovoltaics.

Chemistry of Materials published new progress about Annealing. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Recommanded Product: N-Methylformamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Ostrowski, Jacek published the artcilePharmacological and X-ray structural characterization of a novel selective androgen receptor modulator: potent hyperanabolic stimulation of skeletal muscle with hypostimulation of prostate in rats, HPLC of Formula: 125328-80-5, the main research area is androgen receptor modulator BMS564929 safety synthesis skeletal muscle prostate.

A novel, highly potent, orally active, nonsteroidal tissue selective androgen receptor (AR) modulator (BMS-564929) has been identified, and this compound has been advanced to clin. trials for the treatment of age-related functional decline. BMS-564929 is a subnanomolar AR agonist in vitro, is highly selective for the AR vs. other steroid hormone receptors, and exhibits no significant interactions with SHBG or aromatase. Dose response studies in castrated male rats show that BMS-564929 is substantially more potent than testosterone (T) in stimulating the growth of the levator ani muscle, and unlike T, highly selective for muscle vs. prostate. Key differences in the binding interactions of BMS-564929 with the AR relative to the native hormones were revealed through x-ray crystallog., including several unique contacts located in specific helixes of the ligand binding domain important for coregulatory protein recruitment. Results from addnl. pharmacol. studies effectively exclude alternative mechanistic contributions to the observed tissue selectivity of this unique, orally active androgen. Because concerns regarding the potential hyperstimulatory effects on prostate and an inconvenient route of administration are major drawbacks that limit the clin. use of T, the potent oral activity and tissue selectivity exhibited by BMS-564929 are expected to yield a clin. profile that provides the demonstrated beneficial effects of T in muscle and other tissues with a more favorable safety window.

Endocrinology published new progress about Anabolism. 125328-80-5 belongs to class amides-buliding-blocks, name is N-(4-Bromo-3-chloro-2-methylphenyl)acetamide, and the molecular formula is C9H9BrClNO, HPLC of Formula: 125328-80-5.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Li, Chun-Tian published the artcileRearrangement of N-tert-Butanesulfinyl Enamines for Synthesis of Enantioenriched α-Hydroxy Ketone Derivatives, Formula: C4H11NOS, the main research area is acyclic tertiary hydroxy sulfenyloxy ketone preparation enantioselective; tert butanesulfinyl ketimine methyl triflate cascade enamination methylation rearrangement.

Treating chiral N-tert-butanesulfinyl ketimines with potassium hexamethyldisilazide (or potassium tert-butoxide) and Me triflate gives N-methylated N-tert-butanesulfinyl enamine intermediates that undergo stereoselective [2,3]-rearrangement to afford α-sulfenyloxy ketones I (R = Ph, iPr, 2-furyl, etc.; R’ = Me, allyl, Bn, etc.) with excellent enantiopurities. This cascade of enamination-N-methylation-rearrangement was even used to generate acyclic tertiary α-hydroxy ketones, II bearing two α-substituents showing negligible differences in bulkiness, such as Me and Et groups.

Organic Letters published new progress about Amination. 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Formula: C4H11NOS.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics