Category: amides-buliding-blocks

Dudko, Volodymyr published the artcileOsmotic delamination: Forceless alternative for production of nanosheets now in highly polar and aprotic solvents, Name: N-Methylformamide, the main research area is osmotic delamination nanosheet polar aprotic solvent.

Repulsive osmotic delamination is thermodynamically allowed “”dissolution”” of two-dimensional (2D) materials and therefore represents an attractive alternative to liquid-phase exfoliation to obtain strictly monolayered nanosheets with an appreciable aspect ratio with quant. yield. However, osmotic delamination was so far restricted to aqueous media, severely limiting the range of accessible 2D materials. Alkali-metal intercalation compounds of MoS2 or graphite are excluded because they cannot tolerate even traces of water. We now succeeded in extending osmotic delamination to polar and aprotic organic solvents. Upon complexation of interlayer cations of synthetic hectorite clay by crown ethers, either 15-crown-5 or 18-crown-6, steric pressure is exerted, which helps in reaching the threshold separation required to trigger osmotic delamination based on translational entropy. This way, complete delamination in water-free solvents like aprotic ethylene and propylene carbonate, N-methylformamide, N-methylacetamide, and glycerol carbonate was achieved.

Langmuir published new progress about Alkali metals 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, Name: N-Methylformamide.

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

Srinivasulu, A. published the artcileCopper-Catalyzed N-Alkyl Formamide Activation: Tandem Oxidative Coupling Approach for the Construction of C-N and C-O Bonds to Synthesize 3-Alkyl-1,3-Benzoxazine-2,4-Dione and 4-Methylene-3-Alkyl-1,3-Benzoxazine-2-One Derivatives, Application of N-Methylformamide, the main research area is alkyl benzoxazine dione preparation; salicyaldehyde alkyl formamide activation tandem oxidative coupling copper catalyst; methylene alkyl dihydrobenzoxazineone preparation; hydroxy acetophenone alkyl formamide activation tandem oxidative coupling copper.

Synthesis of 3,4-dihydro-2H-benzo[e][1,3]oxazin-2-ones I [R = Me, Et; R1= H, 6-Me, 7-OMe, etc.; X = O, CH2] via N-alkyl formamide activation by using copper/oxidant system via tandem oxidative coupling with salicyaldehydes/hydroxy acetophenones constructing C-N/C-O bond was reported. This protocol elucidated a method for the synthesis of pharmaceutically interested 3-alkyl-1,3-benzoxazine-2,4-dione and 1,3-methylene-3-alkyl-benzoxazine-2-one derivatives without the aid of toxic chems. such as phosgene or its derivatives

Advanced Synthesis & Catalysis published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent) (o-hydroxy). 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application of N-Methylformamide.

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

Perry, Carolina Trindade published the artcileAmides as cryoprotectants for the freezing of Brycon orbignyanus sperm, Safety of N-Methylformamide, the main research area is Brycon sperm freezing amide cryoprotectant.

The objective of this study was to evaluate the use of different amides as an alternative for the cryopreservation of sperm from the endangered species, Bryconorbignyamus, an important fish for aquaculture in Brazil. The cryoprotectants which were combined with Beltsville Thawing Solution extender, each at the concentrations of 2.5%, 5%, 7.5%, and 10%, were as follows: (1) dimethylacetamide (DMA), (2) DMF (DMF), and (3) methylformamide (MF). The cyoprotectant methylglycol (MG, 10%) was used as a control group. Therefore, 13 treatment groups were performed. In order to assess DNA fragmentation index, lipid peroxidation, cell integrity, integrity of plasma membrane, membrane fluidity, mitochondrial functionality, and reactive oxygen species, flow cytometry was used. The best results were obtained with 7.5% DMF, among all the amides tested, with sperm motility (66%) significantly higher than the other cryoprotectants evaluated (P < .05). It also exhibited high membrane integrity (84.5%) and cell integrity (98.7%), and low membrane fluidity (20.3%) (P < .05). MG (10%) exhibited only 38% motility, lower mitochondrial protection (39.8%), and higher DNA fragmentation index (0.07), despite the high membrane integrity observed (85.6%). The DMF concentration of 7.5% demonstrated greater protection of sperm function and cellular structure, and is therefore recommended for the cryopreservation of B. orbignyamus spermatozoa. Aquaculture published new progress about Amides Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Safety of N-Methylformamide.

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

Dong, Yi published the artcileRhodium(III)-catalyzed sulfonamide directed ortho C-H carbenoid functionalization via metal carbene migratory insertion, HPLC of Formula: 35203-88-4, the main research area is diazoacetate arylsulfonyl acetamide preparation rhodium catalyst regioselective migratory insertion; acetylsulfamoyl arylacetate preparation.

A rhodium(III)-catalyzed sulfonamide directed ortho C-H carbenoid functionalization was developed with good yields. This method was attractive due to its broad substrate scope and enabled derivation of diverse biol. active sulfonamide structures and late-stage modification of sulfa drugs.

Chemical Communications (Cambridge, United Kingdom) published new progress about 1,3-Dicarbonyl compounds Role: RCT (Reactant), RACT (Reactant or Reagent). 35203-88-4 belongs to class amides-buliding-blocks, name is 3-Acetylbenzenesulfonamide, and the molecular formula is C8H9NO3S, HPLC of Formula: 35203-88-4.

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

Ding, Wenwu published the artcileCharacterization of volatile compounds between industrial closed fermentation and traditional open fermentation doubanjiang-meju, Application of N-Methylformamide, the main research area is alc ester volatile compound doubanjiang meju closed open fermentation.

Doubanjiang-meju has been used as an intermediate for producing Pixian Douban (PXDB) and contributes significantly to its flavor. In this study, a profiling anal. of volatile compounds in open fermented doubanjiang-meju (OFD) and closed fermented doubanjiang-meju (CFD) was performed with gas chromatog.-mass spectrometry (GC-MS) and gas chromatog.-olfactometry (GC-O). A total of 42 and 50 volatile compounds were identified in the OFD and CFD, resp. Compared with the OFD, more diversity and higher concentrations of alcs. and esters were found in the CFD. Ten and 12 volatile compounds were finally identified as the major aroma-active compounds in the OFD and CFD, resp., by the combined anal. of aroma intensity values and odor activity values (OAVs). The CFD had significantly stronger umami and soy sauce flavor but weaker beany when compared with the OFD (p < 0.05) by quant. descriptive anal. (QDA), which were basically consistent with intensity values of aroma compounds obtained with GC-O. The results indicated that the CFD had better characteristics of volatile compounds than those of the OFD, which provided a basis of further study for the closed fermentation process of tank fermenter. European Food Research and Technology published new progress about Acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application of N-Methylformamide.

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

Xu, Xu-Dong published the artcileMetal-Free Regioselective Radical Cyclization of 1,6-Enynes with Carbonyl Compounds, Product Details of C2H5NO, the main research area is enyne carbonyl regioselective radical cyclization.

A regioselective cyclization of 1,6-enynes is reported by a tert-Bu hydroperoxide (TBHP)-mediated, one-pot, cascade reaction with com. available carbonyl compounds under metal- and additive-free conditions. The reaction scope includes both 1,6-enynes and carbonyl compounds A possible cascade reaction mechanism, consisting of acyl radical addition, intramol. cyclization, and hydrogen abstraction, is proposed.

ACS Sustainable Chemistry & Engineering published new progress about Alkenynes Role: RCT (Reactant), RACT (Reactant or Reagent) (1,6-Enynes). 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Product Details of C2H5NO.

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

Swetha, Sathyendran published the artcileAn Umpolung Route to Amides from α-Aminonitriles under Metal-Free Conditions, Related Products of amides-buliding-blocks, the main research area is secondary tertiary amide preparation umpolung; aminonitrile decyanation.

A metal-free, base-mediated decyanation of α-aminonitriles has been developed to synthesize secondary and tertiary amides using O2 or air as an amide oxygen source. Radical scavenging studies disclosed that the cleavage of C-CN bond may proceed via an anionic pathway. The practicality of the work was also demonstrated through an in situ generated α-aminonitriles from corresponding aldehydes and amines to afford amides. The important features of this work include broad functional group compatibility, 41% to 89% product yields, gram-scale synthesis of 2° and 3° amides, broad substrate scope, and an umpolung strategy.

Advanced Synthesis & Catalysis published new progress about Amides, secondary Role: SPN (Synthetic Preparation), PREP (Preparation). 7465-88-5 belongs to class amides-buliding-blocks, name is 4-Methoxy-N-phenylbenzamide, and the molecular formula is C14H13NO2, Related Products of amides-buliding-blocks.

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

Chandra, Dinesh published the artcileDirect synthesis of secondary amides from ketones through Beckmann rearrangement using O-(mesitylsulfonyl)hydroxylamine, Category: amides-buliding-blocks, the main research area is mesitylsulfonyl hydroxylamine preparation ketone Beckmann rearrangement; secondary amide preparation.

A highly efficient direct method for the preparation of secondary amides and lactams from ketones using O-(mesitylsulfonyl)hydroxylamine (MSH) was developed. The reactions proceeded rapidly at room temperature under mild condition without requiring any additive and tolerate multiple functional groups. A simple aqueous work-up often furnished the products in excellent yield with high purity.

Tetrahedron Letters published new progress about Amides, secondary Role: SPN (Synthetic Preparation), PREP (Preparation). 7465-88-5 belongs to class amides-buliding-blocks, name is 4-Methoxy-N-phenylbenzamide, and the molecular formula is C14H13NO2, Category: amides-buliding-blocks.

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

Jat, Jawahar L. published the artcileMetal-free synthesis of secondary amides using N-Boc-O-tosylhydroxylamine as nitrogen source via Beckmann rearrangement, Computed Properties of 7465-88-5, the main research area is ketone tertbutyloxycarbonyl tosylhydroxylamine Beckmann rearrangement; secondary amide preparation.

Herein, the first direct method for the synthesis of secondary amides from ketones via the Beckmann rearrangement using N-Boc-O-tosylhydroxylamine (TsONHBoc) as the aminating agent was reported. This reagent was expected to play a dual role, first in the formation of the activated oxime intermediate, and then via facilitation of the amide formation as a Bronsted acid by the tosylic acid byproduct. The metal and additive-free one-step method progresses in TFE solvent through the in situ generation of the primary amine reagent (TsONH2), and produces a water-soluble byproduct.

New Journal of Chemistry published new progress about Amides, secondary Role: SPN (Synthetic Preparation), PREP (Preparation). 7465-88-5 belongs to class amides-buliding-blocks, name is 4-Methoxy-N-phenylbenzamide, and the molecular formula is C14H13NO2, Computed Properties of 7465-88-5.

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

Jin, Ming Yu published the artcileSimultaneous Kinetic Resolution and Asymmetric Induction within a Borrowing Hydrogen Cascade Mediated by a Single Catalyst, Category: amides-buliding-blocks, the main research area is unsaturated ketone preparation; alkoxy ketone preparation; ketone amino preparation; alc alkoxy preparation enantioselective; amino alc preparation enantioselective; racemic allylic alc borrowing hydrogen cascade ruthenium catalyst; asymmetric induction; borrowing hydrogen cascade; density functional theory; kinetic resolution; π-π interactions.

In a borrowing hydrogen cascade starting from racemic allylic alcs., one of the enantiomers could be kinetically resolved, while the other enantiomer could be purposely converted to various targeted products, including α,β-unsaturated ketones RC(O)C=CCH2R1 [R = Ph, 4-FC6H4, 2-naphthyl, etc.; R1 = (CH2)6, (CH2)7, OTBS], β-functionalized ketones R2C(O)CH2CH2R3 [R2 = 4-MeSC6H4, 4-t-BuC6H4, 4-MeOC6H4, etc.; R3 = OMe, OEt, morpholino, etc.] and γ-functionalized alcs. R4CH(OH)CH2CH2R5 [R4 = 4-ClC6H4, 4-FC6H4, 2-naphthyl, etc.; R5 = OMe, OBn, morpholino, etc.] was reported. By employing a robust Ru-catalyst, both kinetic resolution and asym. induction were achieved with remarkable levels of efficiency and enantioselectivity. D. functional theory (DFT) calculations suggested that corresponding catalyst-substrate π-π interactions were pivotal to realize the observed stereochem. diversity.

Angewandte Chemie, International Edition published new progress about Alcohols, alkoxy Role: SPN (Synthetic Preparation), PREP (Preparation). 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Category: amides-buliding-blocks.

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