87282-04-0Relevant articles and documents
Amide bond synthesis via silver(I) N-heterocyclic carbene-catalyzed and tert-butyl hydroperoxide-mediated oxidative coupling of alcohols with amines under base free conditions
Balaboina, Ramesh,Thirukovela, Narasimha Swamy,Vadde, Ravinder,Vasam, Chandra Sekhar
supporting information, p. 847 - 851 (2019/02/20)
We present a base free method for amide bond construction via oxidative coupling of alcohols with amines catalyzed by Silver(I) N-heterocyclic carbenes (Ag(I)-NHCs) and mediated by tert-butyl hydroperoxide (TBHP) in ethanol. The results of controlled experiments suggest that the oxidative coupling proceeds through the formation of aldehyde, then subsequent attack by amine to give hemiaminal, which can then be oxidized to amide.
Interpositus substituted N-aryl benzoyl amines one-step synthesis method of the compound
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Paragraph 0017-0020; 0045-0048, (2017/02/28)
The invention discloses a one-step synthetic method of meta-substituted N-arylbenzamide compounds. Transition metal ruthenium is used as a catalyst, and the meta-substituted N-arylbenzamide compounds are synthesized in one step through carboxy-based o-C-H functionalization/ decarboxylation coupling reaction of aromatic acid and phenyl isocyanate compounds. The method has the advantages that the raw materials are simple and readily available, the catalyst is cheap, the reaction operation is simple, the utilization rate of atoms is high, the method is environment-friendly and the like.
Ru(II)-catalyzed ortho-amidation and decarboxylation of aromatic acids: A versatile route to meta-substituted N-aryl benzamides
Shi, Xian-Ying,Dong, Xue-Fen,Fan, Juan,Liu, Ke-Yan,Wei, Jun-Fa,Li, Chao-Jun
, p. 1286 - 1291 (2015/03/31)
Carboxylate as a promising and valuable directing group has attracted a great deal of attention. However, employing it as a traceless direction group has rarely been reported. We developed the ruthenium-catalyzed amidation of substituted benzoic acids wit
Base-catalyzed synthesis of amides and imines via C-C and CC bond cleavage
Yadav, Dilip Kumar T.,Bhanage, Bhalchandra M.
, p. 12387 - 12391 (2015/02/19)
A transition metal free base catalyzed approach for C-N bond formation via C-C and CC bond activation has been developed. The N-arylureas reacted smoothly with 1,3-dicarbonyls and α,β-unsaturated ketones to furnish the corresponding amides and imines respectively in moderate to excellent yields.
A convenient synthesis of N-aryl benzamides by rhodium-catalyzed ortho-amidation and decarboxylation of benzoic acids
Shi, Xian-Ying,Liu, Ke-Yan,Fan, Juan,Dong, Xue-Fen,Wei, Jun-Fa,Li, Chao-Jun
supporting information, p. 1900 - 1903 (2015/01/30)
The rhodium-catalyzed amidation of substituted benzoic acids with isocyanates by directed C-H functionalization followed by decarboxylation to afford the corresponding N-aryl benzamides is demonstrated, in which the carboxylate serves as a unique, removable directing group. Notably, less common meta-substituted N-aryl benzamides are generated readily from more accessible paraor ortho-substituted groups by employing this strategy.
Facile access to amides and hydroxamic acids directly from nitroarenes
Jain, Shreyans K.,Aravinda Kumar,Bharate, Sandip B.,Vishwakarma, Ram A.
, p. 6465 - 6469 (2014/08/18)
A new method for synthesis of amides and hydroxamic acids from nitroarenes and aldehydes is described. The MnO2 catalyzed thermal deoxygenation of nitrobenzene resulted in formation of a reactive nitroso intermediate which on reaction with aldehydes provided amides and hydroxamic acids. The thermal neat reaction in the presence of 0.01 mmol KOH predominantly led to formation of hydroxamic acid whereas reaction in the presence of 1 mmol acetic acid produced amides as the only product. the Partner Organisations 2014.
Facile cuI-catalyzed arylation of azoles and amides using simple enaminones as efficient ligands
Cheng, Cungui,Sun, Gonglei,Wan, Jieping,Sun, Cuirong
experimental part, p. 2663 - 2668 (2010/01/16)
(E)-3-(Dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one was found to be an excellent ligand for copper-catalyzed N-arylation of azoles and amides with aryl halides under mild conditions. The reaction took place at 82 C in MeCN with broad functional-group compatibility. A combination of the ligand and CuI proved to be an efficient catalytic system to promote the coupling reactions of aryl halides with azoles and amides.
Benzoisothiazolone compositions
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Page/Page column 7, (2008/06/13)
A composition, suitable for topical application to the skin, containing at least one benzoisothiazolone of formula (I): Novel benzoisothiazolones of formula (I) and a method of caring for dry and/or mature skin.