Tag: M.W=200-250

Liu, Xinwei published the artcileH2O2 -promoted C-C bond oxidative cleavage of β-O-4 lignin models to benzanilides using water as a solvent under metal-free conditions, Recommanded Product: 4-Methoxy-N-phenylbenzamide, the main research area is lignin model bond cleavage benzanilide hydrogen peroxide water solvent.

The production of aromatic compounds from lignin is an essential issue in the transformation of biomass. Herein, a simple method has been presented for the synthesis of benzanilides and phenols from aniline involving the oxidative cleavage of β-O-4 lignin models using H2O2 as an oxidizing agent without any metal catalysts and under relatively mild conditions.

Green Chemistry published new progress about Amidation. 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

Song, Jia-Lin published the artcileRh(III)-Catalyzed N-Arylation of Alkyl Dioxazolones with Arylboronic Acids for the Synthesis of N-Aryl Amides, SDS of cas: 7465-88-5, the main research area is aryl amide preparation; alkyl dioxazolone aryl heterocyclic alkenyl boronic acid arylation amination.

Herein, a method for N-aryl amides preparation has been established through Rh(III)-catalyzed C(sp2)-N cross-coupling reactions of alkyl dioxazolones with arylboronic acids, heterocyclic boronic acid, and alkenyl boronic acid. This efficient and straightforward catalytic approach was featured with broad substrate scope (38 examples), good functional group compatibility, high yields (up to 99 %), and is suitable for late-stage modification of drug mol. structures. The possible mechanism hypothesis was also accomplished.

European Journal of Organic Chemistry published new progress about Amination. 7465-88-5 belongs to class amides-buliding-blocks, name is 4-Methoxy-N-phenylbenzamide, and the molecular formula is C14H13NO2, SDS of cas: 7465-88-5.

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

Ke, Fang published the artcileElectrochemical N-acylation synthesis of amides under aqueous conditions, Formula: C14H13NO2, the main research area is amide chemoselective preparation; carboxylic acid amine electrochem acylation.

An electrochem. N-acylation of carboxylic acids with amines was reported for the synthesis of amides I [R1 = H, 4-CN, 2-I, etc.; R2 = H, 4-Me, 4-Cl, etc.]. The sustainable TBAB electrocatalysis proceeded with excellent chemoselectivity and positional selectivity, and with ample scope, allowing electrochem. N-acylation under mild reaction conditions at room temperature in water. Moreover, the synthetic utility of the current method was demonstrated by the synthesis of melatonin.

Green Chemistry published new progress about Acylation. 7465-88-5 belongs to class amides-buliding-blocks, name is 4-Methoxy-N-phenylbenzamide, and the molecular formula is C14H13NO2, Formula: C14H13NO2.

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

Fu, Zhengqiang published the artcileManganese Catalyzed Direct Amidation of Esters with Amines, Computed Properties of 7465-88-5, the main research area is amide preparation; ester amine amidation manganese catalyst.

The transition metal catalyzed amide bond forming reaction of esters with amines has been developed as an advanced approach for overcoming the shortcomings of traditional methods. The broad scope of substrates in transition metal catalyzed amidations remains a challenge. Here, a manganese(I)-catalyzed method for the direct synthesis of amides from a various number of esters and amines is reported with unprecedented substrate scope using a low catalyst loading. A wide range of aromatic, aliphatic, and heterocyclic esters, even in fatty acid esters, reacted with a diverse range of primary aryl amines, primary alkyl amines, and secondary alkyl amines to form amides. It is noteworthy that this approach provides the first example of the transition metal catalyzed amide bond forming reaction from fatty acid esters and amines. The acid-base mechanism for the manganese(I)-catalyzed direct amidation of esters with amines was elucidated by DFT calculations

Journal of Organic Chemistry published new progress about Amidation. 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

Li, Guangchen published the artcileHighly Chemoselective, Transition-Metal-Free Transamidation of Unactivated Amides and Direct Amidation of Alkyl Esters by N-C/O-C Cleavage, Recommanded Product: 4-Methoxy-N-phenylbenzamide, the main research area is chemoselective transamidation unactivated amide amidation alkyl ester.

The amide bond is one of the most fundamental functional groups in chem. and biol. and plays a central role in numerous processes harnessed to streamline the synthesis of key pharmaceutical and industrial mols. Although the synthesis of amides is one of the most frequently performed reactions by academic and industrial scientists, the direct transamidation of tertiary amides is challenging due to unfavorable kinetic and thermodn. contributions of the process. Herein, we report the first general, mild, and highly chemoselective method for transamidation of unactivated tertiary amides by a direct acyl N-C bond cleavage with non-nucleophilic amines. This operationally simple method is performed in the absence of transition metals and operates under unusually mild reaction conditions. In this context, we further describe the direct amidation of abundant alkyl esters to afford amide bonds with exquisite selectivity by acyl C-O bond cleavage. The utility of this process is showcased by a broad scope of the method, including various sensitive functional groups, late-stage modification, and the synthesis of drug mols. (>80 examples). Remarkable selectivity toward different functional groups and within different amide and ester electrophiles that is not feasible using existing methods was observed Extensive exptl. and computational studies were conducted to provide insight into the mechanism and the origins of high selectivity. We further present a series of guidelines to predict the reactivity of amides and esters in the synthesis of valuable amide bonds by this user-friendly process. In light of the importance of the amide bond in organic synthesis and major practical advantages of this method, the study opens up new opportunities in the synthesis of pivotal amide bonds in a broad range of chem. contexts.

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