Tag: M.W=50-100

Speak, Thomas H. published the artcileOH Kinetics with a Range of Nitrogen-Containing Compounds: N-Methylformamide, t-Butylamine, and N-Methyl-propane Diamine, Computed Properties of 123-39-7, the main research area is hydroxyl radical reaction kinetics methylformamide tert butylamine.

Emissions of amines and amides to the atm. are significant from both anthropogenic and natural sources, and amides can be formed as secondary pollutants. Relatively little kinetic data exist on overall rate coefficients with OH, the most important tropospheric oxidant, and even less on site-specific data which control the product distribution. Structure-activity relationships (SARs) can be used to estimate both quantities. Rate coefficients for the reaction of OH with t-butylamine (k1), N-methyl-1,3-propanediamine (k2), and N-methylformamide (k3) have been measured using laser flash photolysis coupled with laser-induced fluorescence. Proton-transfer-reaction mass spectrometry (PTR-MS) has been used to ensure the reliable introduction of these low-vapor pressure N-containing compounds and to give qual. information on products. Supporting ab initio calculations are presented for the t-butylamine system. The following rate coefficients have been determined: k1,298K= (1.66 ± 0.20) x 10-11 cm3 mol.-1 s-1, k(T)1 = 1.65 x 10-11 (T/300)-0.69 cm3 mol.-1 s-1, k2,293K = (7.09 ± 0.22) x 10-11 cm3 mol.-1 s-1, and k3,298K = (1.03 ± 0.23) x 10-11 cm3 mol.-1 s-1. For OH + t-butylamine, ab initio calculations predict that the fraction of N-H abstraction is 0.87. The dominance of this channel was qual. confirmed using end-product anal. The reaction of OH with N-methyl-1,3-propanediamine also had a neg. temperature dependence, but the reduction in the rate coefficient was complicated by reagent loss. The measured rate coefficient for reaction 3 is in good agreement with a recent relative rate study. The results of this work and the literature data are compared with the recent SAR estimates for the reaction of OH with reduced nitrogen compounds Although the SARs reproduce the overall rate coefficients for reactions, site-specific agreement with this work and other literature studies is less strong.

Journal of Physical Chemistry A published new progress about Environmental pollutants. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Computed Properties of 123-39-7.

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

Sheng, Tao published the artcileDiscovery and preliminary mechanism of 1-carbamoyl β-carbolines as new antifungal candidates, Application In Synthesis of 123-39-7, the main research area is carbamoyl carboline preparation antifungal activity docking study SAR; Action mechanism; Antifungal activities; Gaeumannomyces graminis; Histone acetylation; β-Carboline.

Various 1-substituted β-carbolines I (R1 = CH3, C6H5, 4-BrC6H4, etc.), II (R2 = C6H5, CONH2, CONHC6H5, etc.), III (R3 = Me, Ph, OH, etc.) and IV (R4 = Me, Ph, 2-pyridyl, etc.) were synthesized from com. inexpensive tryptophan and demonstrated significant in vitro antifungal activity against G. graminis. Significantly, compound II (R2 = CONH2) (EC50 = 0.45μM) with carboxamide at 1-position displayed the best efficacy and nearly 20 folds enhancement in antifungal potential compared to Silthiopham (EC50 = 8.95μM). Moreover, compounds 4,9-dihydro-3H-pyrido[3,4-b]indole-1-carboxamide, 9H-pyrido [3,4-b]indole-1-carboxamide, and II (R2 = CO2Me) exhibited excellent in vitro antifungal activities and in vivo protective and curative activities against B. cinerea and F. graminearum. Preliminary mechanism studies revealed that compound II (R2 = CONH2) caused reactive oxygen species accumulation, cell membrane destruction, and deregulation of histone acetylation. These findings indicated that 1-carbamoyl β-carbolines I, II, III and IV can be selected as a promising model for the discovery of novel and broad-spectrum fungicide candidates.

European Journal of Medicinal Chemistry published new progress about Agrochemical fungicides. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application In Synthesis of 123-39-7.

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

Piveteau, Laura published the artcileColloidal-ALD-Grown Core/Shell CdSe/CdS Nanoplatelets as Seen by DNP Enhanced PASS-PIETA NMR Spectroscopy, Name: N-Methylformamide, the main research area is colloidal ALD core shell cadmium selenide sulfide nanoplatelet NMR; PASS−PIETA; c-ALD; dynamic nuclear polarization; nanocrystals; nanoplatelets; solid-state NMR.

Ligand exchange and CdS shell growth onto colloidal CdSe nanoplatelets (NPLs) using colloidal at. layer deposition (c-ALD) were investigated by solid-state NMR experiments, in particular dynamic nuclear polarization (DNP) enhanced phase adjusted spinning sidebands – phase incremented echo-train acquisition (PASS-PIETA). The improved sensitivity and resolution of DNP enhanced PASS-PIETA permits identification and study of the core, shell and surface species of CdSe and CdSe/CdS core/shell NPLs heterostructures at all stages of c-ALD. The cadmium chem. shielding was found to be proportionally dependent on the number and nature of coordinating chalcogen-based ligands. DFT calculations permitted to sep. the 111/113Cd chem. shielding into its different components, revealing that the varying strength of paramagnetic and spin-orbit shielding contributions are responsible for the chem. shielding trend of cadmium chalcogenides. Overall, this study points to roughening and increased chem. disorder at the surface during the shell growth process, which is not readily captured by the conventional characterization tools such as electron microscopy.

Nano Letters published new progress about Atomic layer deposition. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Name: N-Methylformamide.

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

Nagarjuna, A. published the artcileMolecular interactions in binary liquid mixtures containing benzyl benzoate, Recommanded Product: N-Methylformamide, the main research area is benzyl benzoate amide binary liquid mixture mol interaction.

Speeds of sound, densities and viscosities of the binary mixture of Benzyl benzoate with mole fractions of amides – Formamide (FA), N-Me formamide (NMF) and Di Me formamide (DMF) have been estimated utilizing the standard strategies at 303.15, 308.15 and 313.15K. From these deliberate values, different thermo-dynamic parameters such as isentropic compressibility (Ks), intermol. free length (Lf), molar volume (Vm), Gibbs free energy (ΔG), enthalpy (H) and their excess properties were determined The figured qualities have been fitted to the Redlich-Kister type polynomial condition utilizing least squares technique to assess the twofold coefficients and standard deviations.

Rasayan Journal of Chemistry published new progress about Binary mixtures, liquid. 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

ShaikBabu, K. Govinda Raoand published the artcileAcoustic properties of binary liquid mixtures containing N-methyl formamide with anilines at different temperatures, Recommanded Product: N-Methylformamide, the main research area is methylformamide aniline binary liquid mixture acoustic parameter.

Densities (ρ), viscosity (η) and speed of sound (U) values for the liquid mixture systems of N-Methylformamide with Aniline, N-methylaniline and N,N-Dimethylanilinealong with those of pure liquids were measured over the entire mole fraction range at T = 303.15 K, 308.15 K and 313.15 K. From these exptl. determined values, various acoustic parameters such as excess isentropic compressibility (KsE), excess molar volume (VE) and excess free length (LfE), excess Gibb’s free energy (ΔG*E) and excess enthalpy (HE) have been calculated The excess functions have been fitted to the Redlich-Kister type polynomial equation. The presenceofintermol. interactions in these liquid mixtures was confirmed by studying the deviations observed in the excess parameters.

Rasayan Journal of Chemistry published new progress about Binary mixtures, liquid. 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

Kalimulla, T. published the artcileUltrasonic investigations in binary liquid mixtures of 2-methylcyclohexanone with formamide, n-methylformamide and N,N-dimethylformamide at different temperatures., Synthetic Route of 123-39-7, the main research area is methylcyclohexanone formamide methylformamide DMF ultrasonic investigation binary liquid mixture.

Ultrasonic velocity(U), viscosity (η) and d. (ρ) of binary liquid mixtures 2-methylcyclohexanone with formamide, N-Methylformamide and N,N-Dimethylformamide have been measured at three temperatures 303.15,308.15 and 313.15 K, over the entire composition range. These exptl. data have been used to calculated the excess isentropic compressibility (KsE), excess enthalpy (HE), excess free length (LfE), excess Gibb’s free energy (ΔG*E) and excess molar volume (VmE). The excess values have been fitted to the Redlich-Kister type polynomial equation. The deviations of excess values provide valuable information that allows us to have a better understanding of the structure of liquids and intermol. interactions in liquid mixtures The results of these observations have been interpreted in terms of structural effects of the solvents. Further the exptl. and derived results are analyzed in terms of structural mol. interactions between component mols. with FT-IR spectral studies.

Journal of Pharmaceutical Sciences and Research published new progress about Binary mixtures, liquid. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Synthetic Route of 123-39-7.

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

Warminska, Dorota published the artcileThermophysical study of the binary mixtures of triethyl phosphate with N-methylformamide, N,N-dimethylformamide and N,N-dimethylacetamide – Experimental and theoretical approach, Computed Properties of 123-39-7, the main research area is triethyl phosphate methylformamide dimethylacetamide binary mixture thermophys excess property.

Densities at (293.15, 298.15, 303.15 and 308.15) K, and viscosities and ultrasonic velocities at 298.15 K of binary liquid mixtures of tri-Et phosphate with N-methylformamide, N,N-dimethylformamide and N,N-dimethylacetamide have been measured over the entire range of composition at p = 0.1 MPa. From the exptl. data, values of excess molar volume, excess isentropic compressibility, viscosity deviation and excess Gibbs energy of activation for viscous flow have been calculated These results were fitted to the Redlich-Kister-type polynomial equation. The viscosity deviations and the excess Gibbs energy were found to be pos. for the all systems investigated, while the excess volumes and the excess isentropic compressibilities were neg. for TEP + DMA and for TEP + DMF systems, and pos. for mixtures TEP + NMF. These results were interpreted based on the strength of the specific interaction, size and shape of mols. Mol. dynamics simulations were used to provide a detailed explanation of the differences between the TEP + NMF and other systems, which were ultimately traced to strong hydrogen bonding between NMF and TEP.

Journal of Molecular Liquids published new progress about Binary mixtures, liquid. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Computed Properties of 123-39-7.

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

Bala, D. published the artcileStudy on Thermodynamic and Transport Properties of Binary Liquid Mixtures (N-Methylformamide with Aniline, N-Methylaniline, and N,N-Dimethylaniline) at Various Temperatures, Formula: C2H5NO, the main research area is thermodn transport property binary liquid mixture Nmethylformamide aniline; Nmethylaniline NNdimethylaniline temperature.

Densities (ρ), speeds of sound (u), and viscosities (η) of binary mixtures of N-methylformamide (N-MF) with aniline (A), N-methylaniline (N-MA), and N, N-dimethylaniline (N, N-DMA) including those of pure liquids, over the entire composition range were measured at temperatures (303.15, 308.15, and 313.15 K) and 0.1 MPa. Using the exptl. data, the excess volume (VE), excess isentropic compressibility (κEs), deviation in viscosity (δη), excess partial molar volumes, [V-Em, 1] and [V-Em, 2], and excess partial molar isentropic compressibilities, [K-Es, m, 1] and [K-Es, m, 2] of the components at infinite dilution were calculated The VE results have been analyzed in the terms of Prigogine-Flory-Patterson theory. An anal. of each of the three contributions viz. interactional, free volume and P* to VE shows that free volume effects are neg. for all the binary mixtures FT-IR (Fourier transform IR spectroscopy) properties have been carried out to study the specific interaction such as formation of hydrogen bond between unlike mols. in the binary liquid mixtures; a good agreement is observed among the excess parameters and FT-IR spectroscopic properties.

Russian Journal of Physical Chemistry A published new progress about Binary mixtures, liquid. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

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

Sang, Wenjiao published the artcileDegradation of liquid phase N,N-dimethylformamide by dielectric barrier discharge plasma: Mechanism and degradation pathways, Recommanded Product: N-Methylformamide, the main research area is DMF liquid phase degradation dielec barrier discharge wastewater treatment; Degradation pathways; Dielectric barrier discharge (DBD) plasma; Hydroxyl radical; Liquid phase; N,N-dimethylformamide (DMF).

The degradation of liquid phase N,N-dimethylformamide (DMF) using the dielec. barrier discharge (DBD) plasma was studied in the present study. The results showed that 1000 mg L-1 DMF could be degraded by DBD plasma under different input power, treatment time and initial pH values of aqueous solution After 40 min with DBD plasma discharge, 52.2% degradation efficiency was achieved at DMF concentration of 1000 mg L-1 with an input power of 16.19 W under initial pH of 11.14 in aqueous solution, and the energy efficiency of the system was 13.2 mg kJ-1. The removal efficiency decreased with the presence of radical scavenger, manifesting that ·OH plays a critical role in the degradation process. The value of TOC in DMF aqueous solution decreased from 790 mg L-1 to 507 mg L-1 in 40 min, which indicated that DBD plasma has the ability to mineralize a portion of DMF in liquid directly. Addnl., the anal. of FTIR, HPLC and the small mol. organic compounds before and after the DBD plasma degradation indicated that the intermediates of DMF in degradation process were N-methylformamide, methanol, formaldehyde and formic acid, which were finally mineralized into ammonia nitrogen, CO2 and H2O. Moreover, the possible degradation mechanism and pathways were proposed.

Chemosphere published new progress about Dielectric barrier discharge. 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

Hornink, Milene M. published the artcileUltrasound-mediated radical cascade reactions: fast synthesis of functionalized indolines from 2-(((N-aryl)amino)methyl)acrylates, Quality Control of 123-39-7, the main research area is indoline acetamide methoxycarbonyl preparation green chem; acrylate arylaminomethyl ultrasound radical tandem addition cyclization formamide; Functionalized indolines; Indolines; Organic synthesis; Pulsed ultrasound; Sono-Fenton; Ultrasound.

Novel functionalized indolines were synthesized from 2-(((N-aryl)amino)methyl)acrylates and formamides under ultrasonic irradiation for the first time. Aiming to develop a straightforward and easy-to-implement methodol. for the synthesis of indolines, an instrumentation setup was designed, including ultrasound (US) equipment (Ultrasonic Horn; tip diameter of 12.7 mm, 20 kHz, maximum power of 400 W), an open reaction flask, and an inexpensive and green catalyst (1 mol%; FeSO4·7H2O) without the need for anhydrous conditions. The use of the sono-Fenton process in the presence of formamides and 2-(((N-aryl)amino)methyl)acrylates afforded a broad range of functionalized indolines within 60 s in high yields. Several exptl. parameters of the ultrasound-assisted reaction were evaluated, such as amplitude (40-80%), sonication time (15-60 s), and pulsed ultrasonic irradiation A 60 s silent reaction did not produce the desired indoline. The optimized conditions for US-mediated reactions allowed the production of functionalized indolines in high isolated yields (up to 99%, 60 s reaction time, pulse ratio 1 s:1 s, US amplitude 60%).

Ultrasonics Sonochemistry published new progress about Addition reaction catalysts. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Quality Control of 123-39-7.

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