75596-44-0Relevant academic research and scientific papers
Efficient and accessible silane-mediated direct amide coupling of carboxylic acids and amines
D'Amaral, Melissa C.,Jamkhou, Nick,Adler, Marc J.
supporting information, p. 288 - 295 (2021/01/28)
A straightforward method for the direct synthesis of amides from amines and carboxylic acids without exclusion of air or moisture using diphenylsilane with N-methylpyrrolidine has been developed. Various amides are made efficiently, and broad functional group compatibility is shown through a Glorius robustness study. A gram-scale synthesis demonstrates the scalability of this method. This journal is
Palladium-catalyzed direct arylations of five-membered heteroarenes bearing N-monoalkylcarboxamide substituents
Laidaoui, Nouria,Roger, Julien,Miloudi, Abdellah,El Abed, Douniazad,Doucet, Henri
experimental part, p. 4373 - 4385 (2011/10/09)
The palladium-catalyzed direct arylation of furan, thiophene, pyrrole, or pyrazole derivatives bearing CONHR substituents on C2, C3, or C5 with aryl bromides was studied. The use of KOAc as the base, DMAc as the solvent, and PdCl(C3H5)(dppb) as the catalyst was found to give regioselectively and without decarbamoylation the arylated heteroaromatics. Under these conditions, the amide substituent on the heteroaromatic does not act as a directing group. A wide range of functional groups such as acetyl, formyl, ester, nitrile, trifluoromethyl, and fluoro on the aryl bromide is tolerated. The palladium-catalyzed direct arylation of furan, thiophene, pyrrole, or pyrazole derivatives bearing CONHR substituents on C2, C3, or C5 with aryl bromides was studied. The use of KOAc as the base, DMAc as the solvent, and PdCl(C3H5)(dppb) as the catalyst was found to give regioselectively the arylated heteroaromatics.
