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Merck
CN

Lanthanum(III) triflate catalyzed direct amidation of esters.

Organic letters (2014-03-26)
Hiroyuki Morimoto, Risa Fujiwara, Yuhei Shimizu, Kazuhiro Morisaki, Takashi Ohshima
摘要

Lanthanum trifluoromethanesulfonate is an effective single-component catalyst for synthesizing a variety of amides directly from esters and amines under mild conditions. Highly selective amidation of esters and amines, as well as catalyst-controlled amidation of esters, demonstrated the effectiveness of the catalyst system.

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Sigma-Aldrich
6-氯吡啶-3-羧酸乙酯, 97%