Category: 123-39-7

Protesescu, Loredana published the artcileColloidal nano-MOFs nucleate and stabilize ultra-small quantum dots of lead bromide perovskites, Recommanded Product: N-Methylformamide, the main research area is lead bromide perovskites nanoparticle metal organic framework quantum dot.

The development of synthetic routes to access stable, ultra-small (i.e. <5 nm) lead halide perovskite (LHP) quantum dots (QDs) is of fundamental and technol. interest. The considerable challenges include the high solubility of the ionic LHPs in polar solvents and aggregation to form larger particles. Here, we demonstrate a simple and effective host-guest strategy for preparing ultra-small lead bromide perovskite QDs through the use of nano-sized MOFs that function as nucleating and host sites. Cr3O(OH)(H2O)2(terephthalate)3 (Cr-MIL-101), made of large mesopore-sized pseudo-spherical cages, allows fast and efficient diffusion of perovskite precursors within its pores, and promotes the formation of stable, ∼3 nm-wide lead bromide perovskite QDs. CsPbBr3, MAPbBr3 (MA+ = methylammonium), and (FA)PbBr3 (FA+ = formamidinium) QDs exhibit significantly blue-shifted emission maxima at 440 nm, 446 nm, and 450 nm, resp., as expected for strongly confined perovskite QDs. Optical characterization and composite modeling confirm that the APbBr3 (A = Cs, MA, FA) QDs owe their stability within the MIL-101 nanocrystals to both short- and long-range interfacial interactions with the MOF pore walls. Chemical Science published new progress about Carboxylic acids Role: TEM (Technical or Engineered Material Use), USES (Uses). 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

Sanabria, Marialy Nieves published the artcileMicrowave Irradiation and Formamide: A Perfect Match for Ultrafast Carbamoylation via Radical Reactions, Synthetic Route of 123-39-7, the main research area is acryloyl benzamide formamide iron carbamoylation microwave irradiation green chem; dioxo isoquinolinyl acetamide preparation regioselective.

The exploitation of microwave irradiation in radical reactions, in which formamide was used as both the solvent and reagent, enabled the development of an ultrafast methodol. for amidation via carbamoyl radicals. The synthesis of functionalized isoquinoline-1,3-diones in only 10 s was described for the first time. A very efficient and environmentally benign methodol. was developed. Mild conditions, very short reaction time, low energy consumption, high atom economy, use of an inexpensive and green catalyst, nonanhydrous conditions, high selectivity, and nontoxic solvents are some advantages of this method. The low value of the E factor (6.1) reflects the low waste generation, making this method very attractive for industrial applications.

ACS Sustainable Chemistry & Engineering published new progress about Benzamides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

Liu, Ziwei published the artcileHarnessing chemical energy for the activation and joining of prebiotic building blocks, Recommanded Product: N-Methylformamide, the main research area is nucleoside phosphate carboxylic acid catalysis dicyanoimidazole isonitrile energy ATP; prebiotic mol evolution life origin nucleoside phosphate peptide RNA; nucleotide condensation amino acid primordial phospholipid lipid.

Life is an out-of-equilibrium system sustained by a continuous supply of energy. In extant biol., the generation of the primary energy currency, ATP and its use in the synthesis of biomols. require enzymes. Before their emergence, alternative energy sources, perhaps assisted by simple catalysts, must have mediated the activation of carboxylates and phosphates for condensation reactions. Here, we show that the chem. energy inherent to isonitriles can be harnessed to activate nucleoside phosphates and carboxylic acids through catalysis by acid and 4,5-dicyanoimidazole under mild aqueous conditions. Simultaneous activation of carboxylates and phosphates provides multiple pathways for the generation of reactive intermediates, including mixed carboxylic acid-phosphoric acid anhydrides, for the synthesis of peptidyl-RNAs, peptides, RNA oligomers and primordial phospholipids. Our results indicate that unified prebiotic activation chem. could have enabled the joining of building blocks in aqueous solution from a common pool and enabled the progression of a system towards higher complexity, foreshadowing today’s encapsulated peptide-nucleic acid system.

Nature Chemistry published new progress about Carboxylic acids Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

He, Shoushou published the artcileSite-Selective Surface Modification of 2D Superatomic Re6Se8, Computed Properties of 123-39-7, the main research area is superatomic rhenium selenide cluster nanosheet preparation surface functionalization.

Coating two-dimensional (2D) materials with mols. bearing tunable properties imparts their surfaces with functionalities for applications in sensing, nanoelectronics, nanofabrication, and electrochem. Here, the authors report a method for site-selective surface functionalization of 2-dimensional superat. Re6Se8Cl2 monolayers. First, the authors activate bulk layered Re6Se8Cl2 by intercalating Li and then exfoliate the intercalation compound Li2Re6Se8Cl2 in N-methylformamide (NMF). Heating the resulting solution eliminates LiCl to produce monolayer Re6Se8(NMF)2-x (x �0.4) as high-quality nanosheets. The unpaired electrons on each cluster in Re6Se8(NMF)2-x enable covalent surface functionalization through radical-based chem. The authors demonstrate this with four previously unknown surface-functionalized 2-dimensional superat. materials: Re6Se8I2, Re6Se8(SPh)2, Re6Se8(SPhNH2)2, and Re6Se8(SC16H33)2. TEM, chem. anal., and vibrational spectroscopy reveal that the in-plane structure of the 2-dimensional Re6Se8 material is preserved through surface functionalization. The incoming groups control the d. of vacancy defects and the solubility of the 2-dimensional material. This approach will find utility in installing a broad array of chem. functionality on the surface of 2-dimensional superat. materials as a means to systematically tune their phys. properties, chem. reactivity, and solution processability.

Journal of the American Chemical Society published new progress about Monolayers. 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

Kharaneko, A. O. published the artcileHeterocyclizations of Di- and Tricarbonyl Indole Derivatives. Synthesis of β-Carbolines, 3H-[1,2,5]Triazepino[5,4-a]indol-4(5H)-one, and 5,10-Dihydro[1,2]diazepino[4,5-b]indol-4(3H)-one, Name: N-Methylformamide, the main research area is carboline triazepinoindolone dihydrodiazepinoindolone preparation.

A synthetic approach to β-carbolines has been proposed on the basis of heterocyclization of Et 2-(2-benzoyl-1H-indol-3-yl)acetate with N-methylformamide or ammonium acetate. Hydrazine hydrate proved to be inefficient in this reaction. The heterocyclization of di-Me 2,2′-(2-benzoyl-1H-indole-1,3-diyl)diacetate with ammonium acetate selectively afforded 2-(3-hydroxy-1-phenyl-9H-pyrido[3,4-b]indol-9-yl)acetamide. Treatment of di-Me 2,2-(2-benzoyl-1H-indole-1,3-diyl)diacetate with hydrazine hydrate, followed by acid-catalyzed heterocyclization, gave Me 2-(4-oxo-1-phenyl-4,5-dihydro-3H-[1,2,5]triazepino[5,4-a]indol-11-yl)acetate or 2-{4-oxo-1-phenyl-4,5-dihydro[1,2]diazepino[4,5-b]indol-10(3H)-yl}acetohydrazide, depending on the conditions.

Russian Journal of Organic Chemistry published new progress about Fused heterocyclic compounds Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

Rayala, Nagamani published the artcileAcid catalyzed multicomponent one-pot synthesis of new quinazolinone based unsymmetrical C-N linked bis heterocycles, Recommanded Product: N-Methylformamide, the main research area is dihydroquinazolinyl hexahydroacridine dione preparation; aminoquinazolinone cyclohexanedione aldehyde multicomponent condensation cyclization hydrochloric acid catalyst.

A novel series of unsym. C-N linked bis heterocycles bearing quinazolinone and acridinedione skeletons I (R = Ph, thiophen-2-yl, 2-chloroquinolin-3-yl, etc.) have been synthesized in an acid promoted one pot multicomponent reaction. A blend of 6-aminoquinazolin-4-(3H)-one, aromatic aldehydes RCHO and cyclohexane-1,3-dione in a simple and efficient condensation-cyclization reaction using hydrochloric acid in catalytic amount as catalyst afforded unsym. bis hybrids in good to excellent yields. Multiheterocyclic hybrid compounds I were also synthesized using heterocyclic ring containing aldehyde in three component reaction. The synthesized quinazolinone-acridindione hybrids I were characterized using spectroscopic techniques.

Asian Journal of Chemistry published new progress about Aryl aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Lei, Gaiying published the artcileIn situ preparation of amphibious ZnO quantum dots with blue fluorescence based on hyperbranched polymers and their application in bio-imaging, COA of Formula: C2H5NO, the main research area is zinc oxide quantum dot blue fluorescence hyperbranched polymer; amphibious ZnO quantum dots; bio-imaging; blue fluorescence; hyperbranched polymers.

A new strategy for preparing amphibious ZnO quantum dots (QDs) with blue fluorescence within hyper-branched poly(ethylenimine)s (HPEI) was proposed in this paper. By changing [Zn2+]/[OH-] molar ratio and heating time, ZnO QDs with a quantum yields (QY) of 30% in ethanol were obtained. Benefiting from the amphibious property of HPEI, the ZnO/HPEI nanocomposites in ethanol could be dissolved in chloroform and water, acquiring a QY of 53%, chloroform and 11% in water. By this strategy, the ZnO/HPEI nano-composites could be applied in not only in optoelectronics, but also biomedical fields (such as bio-imaging and gene transfection). The bio-imaging application of water-soluble ZnO/HPEI nanocomposites was investigated and it was found that they could easily be endocytosed by the COS-7 cells, without transfection reagent, and they exhibited excellent biol. imaging behavior.

Polymers (Basel, Switzerland) published new progress about Dialysis Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), PROC (Process). 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

Patel, Khushbu P. published the artcileGraphene Oxide: A Metal-Free Carbocatalyst for the Synthesis of Diverse Amides under Solvent-Free Conditions, Recommanded Product: N-Methylformamide, the main research area is amide preparation green chem solventless; amine carboxamide transamidation graphene oxide catalyst.

An environment-friendly, inexpensive, carbocatalyst, graphene oxide (GO) which promoted efficient, metal-free transamidation of various carboxamides RC(O)NH2 (R = Ph, pyridin-2-yl, H, Me, etc.) with aliphatic, cyclic, and aromatic amines NH(R1)(R2) [R1 = H, Ph; R2 = n-Bu, Ph, cyclohexyl, pyridin-2-yl, etc.; R1R2 = -(CH2)4-, -CH2CH2OCH2CH2-] and 2-aminothiophenol is demonstrated. The protocol is equally applicable to phthalimides such as 1H-isoindole-1,3(2H)-dione, 5-methyl-1H-isoindole-1,3(2H)-dione, ureas R3NHC(O)NH2 (R3 = H, Ph), and thioamide determining its adaptability. The oxygenated functionalities such as carbonyl (-C=O), epoxy (-O-), carboxyl (-COOH) and hydroxyl (-OH), present on graphene oxide surface impart acidic properties to the catalyst. The graphene oxide being heterogeneous in nature, work efficiently under solvent-free reaction conditions providing desired products RC(O)N(R1)(R2), I, R1NHC(O)NHR2 in good to excellent yields. The one-pot synthesis of 2,3-dihydro-5H-benzo[b]-1,4-thiazepin-4-one moiety by GO catalyzed Aza Michael addition followed by intramol. transamidation is also described. A plausible reaction mechanistic pathway involving H-bonding is discussed. The graphene oxide can be recycled and reused up to five cycles without much loss in catalytic activity.

Advanced Synthesis & Catalysis published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Zhang, Feng published the artcileMoS2-Catalyzed transamidation reaction, Synthetic Route of 123-39-7, the main research area is amine amide molybdenum disulfide catalyst transamidation.

The MoS2-catalyzed transamidation reaction with high yields using N,N-dimethylformamide and other amides as carbonyl sources was developed. The protocol was simple, does not required any additive such as acid, base, ligand, etc., and encompassed a broad substrate scope for primary, secondary and heterocyclic amines. Moreover, the acetylation and propanylation of amines also could be achieved with good to excellent yield by this strategy.

Scientific Reports published new progress about Amines Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

Zhang, Feng published the artcileMetal- and solvent-free synthesis of amides using substitute formamides as an amino source under mild conditions, Name: N-Methylformamide, the main research area is tertiarybutyl arylperoxoate preparation potassium tertiary butoxide mediator amidation; arylamide preparation green chem.

An efficient and practical approach for amide synthesis was described. The reaction was conducted under metal- and solvent-free conditions at a mild temperature (40°) in air and readily available formamides were used as an amino source. This reaction was easily upgraded to the gram level with an excellent yield.

Scientific Reports published new progress about Aromatic amides Role: SPN (Synthetic Preparation), PREP (Preparation). 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