Category: amides-buliding-blocks

Ramaiah, Manjunatha M. published the artcile1,8-Diazabicyclo[5.4.0]undec-7-ene-mediated formation of N-sulfinyl imines, Application of (S)-2-Methylpropane-2-sulfinamide, the main research area is sulfinyl imine preparation; tert butanesulfinamide aldehyde para toluenesulfinamide condensation DBU mediated; para toluenesulfinamide alc tert butanesulfinamide condensation DBU mediated.

A facile and efficient method was developed for the preparation of a variety of aryl, heteroaryl, and alkyl N-sulfinyl imines RCH=NS(O)R1 [R = cyclopropyl, 2-FC6H4, 8-quinolinyl, etc.; R1 = tBu, 4-MeC6H4; stereo = (S)] using 1,8-diazabicyclo[5.4.0]undec-7-ene. In addition to tert-butanesulfinamide, the condensation was also effective with p-toluenesulfinamide. The reaction was performed at room temperature and produced corresponding N-sulfinyl imines RCH=NS(O)R1 in excellent yields in absence of acids, metals, and additives. This methodol. was also useful for the preparation of N-sulfinyl imines on gram scale. A one-pot synthesis was developed using aryl and heteroaryl alcs. with both tert-butanesulfinamide and p-toluenesulfinamide at room temperature, resulting in corresponding N-sulfinyl imines with good yields.

Journal of Chemical Research published new progress about Alcohols, unsaturated Role: RCT (Reactant), RACT (Reactant or Reagent). 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Application of (S)-2-Methylpropane-2-sulfinamide.

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

Tyrol, Chet C. published the artcileIron-catalysed enantioconvergent Suzuki-Miyaura cross-coupling to afford enantioenriched 1,1-diarylalkanes, Product Details of C4H11NOS, the main research area is diarylalkane enantioselective preparation; benzylic chloride aryl boronic ester iron catalyst Suzuki Miyaura.

The first stereoconvergent Suzuki-Miyaura cross-coupling reaction was developed to afford enantioenriched 1,1-diarylalkanes I [R = Me, Et, i-Pr, etc.; R1 = Ph, 4-FC6H4, 1-naphthyl, etc.; R2 = Ph, 4-MeC6H4, 2-naphthyl, etc.]. An iron-based complex containing a chiral cyanobis(oxazoline) ligand framework was best to obtain enantioenriched 1,1-diarylalkanes from cross-coupling reactions between unactivated aryl boronic esters and benzylic chlorides. Enhanced yields were obtained when 1,3,5-trimethoxybenzene was used as an additive, which was hypothesized to extend the lifetime of the iron-based catalyst. Exceptional enantioselectivities were obtained with challenging ortho-substituted benzylic chlorides.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alkanes Role: SPN (Synthetic Preparation), PREP (Preparation) (diaryl). 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Product Details of C4H11NOS.

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

Wang, Huanan published the artcilePd-Catalyzed Enantioselective Syntheses of Trisubstituted Allenes via Coupling of Propargylic Benzoates with Organoboronic Acids, Computed Properties of 343338-28-3, the main research area is allene preparation enantioselective; racemic propargylic benzoate organoboronic acid coupling palladium catalyst.

Enabled by the newly developed ligand, Ming-Phos, the first example of palladium-catalyzed highly enantioselective coupling of racemic propargylic benzoates with organoboronic acids for chiral allenes synthesis has been developed. Excellent asym. induction has been achieved with a decent substrate scope. Synthetic potentials for the construction of polycyclic compounds with multiple chiral centers have been demonstrated.

Journal of the American Chemical Society published new progress about Allenes Role: SPN (Synthetic Preparation), PREP (Preparation) (chiral). 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Computed Properties of 343338-28-3.

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

Bai, Jin published the artcileVisible-Light Carbon Nitride-Catalyzed Aerobic Cyclization of Thiobenzanilides under Ambient Air Conditions, Safety of 4-Methoxy-N-phenylbenzamide, the main research area is thiobenzanilide cyclization carbon nitride catalyst photochem; benzothiazole preparation.

A metal-free heterogeneous photocatalysis has been developed for the synthesis of benzothiazoles via intramol. C-H functionalization/C-S bond formation of thiobenzanilides by inexpensive graphitic carbon nitride (g-C3N4) under visible-light irradiation This reaction provides access to a broad range of 2-substituted benzothiazoles in high yields under an air atm. at room temperature without addition of a strong base or organic oxidizing reagents. In addition, the catalyst was found to be stable and reusable after five reaction cycles.

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

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

Adegboyega, Abdullahi K. published the artcileReaction of Dioxazolones with Boronic Acids: Copper-Mediated Synthesis of N-Aryl Amides via N-Acyl Nitrenes, HPLC of Formula: 7465-88-5, the main research area is aryl amide preparation; dioxazolone boronic acid copper mediated reaction.

Dioxazolones, as direct amide sources, have been used with boronic acids in the presence of copper(I) chloride to access N-aryl amides at room temperature The versatility of the developed reaction is proven by ample scope having a wide range of functional group tolerance. The reaction optimization conditions revealed that a fluorine additive demonstrated improved reactivity toward the intended transformation. The addition of triphenylphosphine resulted in N-acyl iminophosphorane, suggesting the involvement of an N-acyl nitrene intermediate.

Organic Letters published new progress about Aromatic amides 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, HPLC of Formula: 7465-88-5.

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

Li, Hanyuan published the artcileEnantiopure Chiral Phosphines Bearing a Sulfinyl Group and their Application in Catalytic Enantiodivergent Synthesis of Polysubstituted Pyrrolines, SDS of cas: 343338-28-3, the main research area is polysubstituted pyrroline enantiodivergent diastereoselective preparation; unsaturated imine allylic carbonate annulation enantiopure chiral phosphine catalyst.

In this work, a type of enantiopure chiral phosphines bearing a polar S=O sulfinyl group as the chiral unit in the mol. was developed, which could be prepared in either enantiomeric form from com. available materials by a three-step route. The enantiopure chiral phosphines could catalyze enantiodivergent asym. [4+1] annulation reactions of α,β-unsaturated imines and allylic carbonates, delivering polysubstituted pyrrolines I [R1 = C6H5, 4-FC6H4, 3-furyl, etc.; R2 = C6H5, 4-ClC6H4, 4-FC6H4, etc.] in either enantiomeric form in up to 99% yield and up to 99% ee, and thus empower a method for dual stereo-controlled synthesis of chiral pyrrolines. This work accordingly unveiled a practical and predictable strategy to realize enantiodivergent synthesis.

Advanced Synthesis & Catalysis published new progress about Carbonates Role: RCT (Reactant), RACT (Reactant or Reagent) (allylic). 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, SDS of cas: 343338-28-3.

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

Asakawa, Tomohiro published the artcilePractical Synthesis of Polymethylated Flavones: Nobiletin and Its Desmethyl Derivatives, Name: N-Methylformamide, the main research area is nobiletin synthesis; flavone polymethoxylated preparation.

We present a practical synthesis of the polymethoxylated citrus flavone nobiletin that is suitable for use on a hundred gram scale. Ready availability of this compound and its derivatives will aid detailed chem.-biol. investigations of their biol. activities, including activation of signaling via the cAMP-dependent protein kinase A/extracellular signal-related protein kinase/cAMP response element-binding protein pathway.

Organic Process Research & Development published new progress about Methoxyflavones 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

Ligterink, Niels F. W. published the artcileThe family of amide molecules toward NGC 6334I, Synthetic Route of 123-39-7, the main research area is amide mol chem network star interstellar dust.

Amide mols. produced in space could play a key role in the formation of biomols. on a young planetary object. However, the formation and chem. network of amide mols. in space is not well understood. In this work, Atacama Large Millimeter/submillimeter Array observations are used to study a number of amide(-like) mols. toward the high-mass star-forming region NGC 6334I. The first detections of cyanamide (NH2CN), acetamide (CH3C(O)NH2), and N-methylformamide (CH3NHCHO) are presented for this source. These are combined with analyses of isocyanic acid (HNCO) and formamide (NH2CHO), and a tentative detection of urea (carbamide; NH2C(O)NH2). Abundance correlations show that most amides are likely formed in related reactions occurring in ices on interstellar dust grains in NGC 6334I. However, in an expanded sample of sources, large abundance variations are seen for NH2CN that seem to depend on the source type, which suggests that the phys. conditions within the source heavily influence the production of this species. The rich amide inventory of NGC 6334I strengthens the case that interstellar mols. can contribute to the emergence of biomols. on planets.

Astrophysical Journal published new progress about Amides 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, Synthetic Route of 123-39-7.

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

Cash, Gordon G. published the artcilePrediction of inhibitory potencies of arenesulfonamides toward carbonic anhydrase using easily calculated molecular connectivity indices, Safety of 3-Acetylbenzenesulfonamide, the main research area is carbonic anhydrase inhibitor arenesulfonamide QSAR.

Previous literature reports described the correlation of arenesulfonamide inhibitory potency toward carbonic anhydrase with a quantum mech. descriptor, namely, the total charge on the sulfonamide oxygens, and an indicator variable. The present paper attempts to correlate the same inhibitory potency data with the much more easily calculated mol. connectivity indexes (MCIs) for the same set of compounds A good (r = 0.91) two-variable correlation was found for an subset, from which compounds with a certain structural characteristic had been excluded. This result is consistent with many previous reports that MCIs do well in predicting relative biol. activities of a homologous series of compounds but less well for groups of compounds that differ at several sites.

Structural Chemistry published new progress about QSAR (quantitative structure-activity relationship). 35203-88-4 belongs to class amides-buliding-blocks, name is 3-Acetylbenzenesulfonamide, and the molecular formula is C8H9NO3S, Safety of 3-Acetylbenzenesulfonamide.

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

Wang, Wenran published the artcileProton Initiated Ligand Exchange Reactions for Colloidal Nanocrystals Functionalized by Inorganic Ligands with Extremely Weak Coordination Ability, Category: amides-buliding-blocks, the main research area is inorganic ligand nanocrystal.

Replacing initial long chain organic ligands by small, stable, and conductive inorganic ligands (ILs) via inorganic ligand exchange reaction (ILER) opens up new opportunities for the functionalization and application of colloidal nanocrystals (NCs). Although IL functionalized NCs have been successfully obtained via ILER for most ILs, some common anions, including F-, NO3-, SO42-, and ClO4- with extremely weak coordination ability, are hardly explored. Herein, we demonstrate for the first time the access of these IL capped NCs via ILER by using H+ as the electrophile reagent, which efficiently and irreversibly strips off the original organic ligands first. A long-term colloidal stability can be realized for these anion capped NCs via the replacement of H+ by other suitable monovalent counterions. It is believed that the successful capping with these hard ILs for soft NCs such as CdSe will not only promote the development of IL exchange theory and mechanism but also significantly enrich the toolbox of colloidal NCs and provide great opportunities in the design and construction of new NC-based devices.

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

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