Highly efficient chemoselective N-acylation with water microreaction system in the absence of catalyst.

Sato, Masahiro; Matsushima, Keiichiro; Kawanami, Hajime; Chatterjee, Maya; Yokoyama, Toshiro; Ikuhsima, Yutaka; Suzuki, Toshishige Maro · Lab Chip · 2009

basic_science · Level V

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Abstract

A high-speed, highly efficient chemoselective N-acylation by anhydride was achieved in the absence of catalyst for exothermic (DeltaH>0) and endothermic (DeltaH<0) acylation of various amines and anilines with the microreaction system of ambient water (micro-onH2O) and subcritical water (micro-subH2O), where the desired N-acylated products are chemoselectively obtained with high yield(s) and excellent selectivity (>95%).