aminolysis reaction between various aryl esters and inert tertiaryamines by C–O and C–N bond activations has been developed for the selective synthesis of a broad scope of tertiary amides under neutral and mild conditions. The mechanism may undergo the two key steps of oxidativeaddition of acyl C–O bond in parent ester and C–N bond cleavage of tertiaryamine via an iminium-type intermediate.
Catalyzed by supported palladium nanoparticles, a decarbonylative amidation reaction between various aryl esters and formamides by C-O bond activation has been developed for the synthesis of amides.
K<sub>2</sub>CO<sub>3</sub>-promoted formation of aryl esters from primary aryl amides by the acyl–acyl exchange process
作者:Yongjun Bian、Xingyu Qu
DOI:10.1039/c6ob00187d
日期:——
A new acyl–acyl exchange reaction has been developed for the formation of aryl esters from primary aryl amides. The reaction could occur under mild reaction conditions with catalytic quantities of K2CO3, and could afford moderate to good yields of the desired products.
已经开发了一种新的酰基-酰基交换反应,用于由伯芳基酰胺形成芳基酯。该反应可以在温和的反应条件下用催化量的K 2 CO 3进行,并且可以提供中等至良好产率的所需产物。
One pot synthesis of diarylfurans from aryl esters and PhI(OAc)<sub>2</sub>via palladium-associated iodonium ylides
The example of palladium-catalyzed intermolecular cyclization for the synthesis of various diarylfurans in which one of the aromatic rings originates from the phenolic part of the starting ester and the other one from PhI(OAc)2 has been reported. The reaction is carried out through two steps: the rearrangement of palladium-associated iodonium ylides to form o-iodo diaryl ether and then palladium catalyzed