Fluorous 2-chloropyridinium salt (Mukaiyama condensation reagent) for amide formation reactions
摘要:
A new fluorous 2-chloropyridinium hexafluorophosphate was prepared as a modified Mukaiyama condensation reagent, and it was applied in amide formation reactions. Good to excellent purities of amides were obtained after fluorous solid-phase extraction of reaction mixtures without additional chromatography. (c) 2005 Elsevier Ltd. All rights reserved.
Chloroform‐mediated acylative coupling of amines and indoles has been developed. Indoles and amines in chloroform were treated with dimethylzinc in the presence of air, resulting in a three‐component acylative coupling reaction in which in‐situ generation of phosgene produces indole‐3‐carboxamides.