A simple and efficient cationic Fe(III)/TEMPO-catalyzed oxidative cyclization of aroyl hydrazones has been developed for the synthesis of 2,5-disubstituted 1,3,4-oxadiazole derivatives. The reaction offers a broad scope, good functional-group tolerance, and high yields under mild conditions in the presence of O2.
开发了一种简单高效的阳离子 Fe(III)/
TEMPO 催化的芳酰腙氧化环化反应,用于合成 2,5-二取代的 1,3,4-恶二唑衍
生物。该反应在O 2存在的温和条件下具有广泛的范围、良好的官能团耐受性和高产率。