부산대학교 도서관

In this study, copper chromite nanoparticles (CuCr2O4 NPs) were prepared by a simple hydrothermal method. This nanomaterial was found as an efficient heterogeneous catalyst for the synthesis of a new class of [1]benzopyran azo dyes via pseudo‐three‐component reaction of (E)‐1,2‐diphenyl‐1‐diazene with 4‐hydroxycoumarin in the ratio 1:2. The aim of the present work was to provide a practical and high yielding protocol that offers several advantages such as simple procedure with an easy work‐up, mild reaction conditions, and the use of CuCr2O4 NPs as an efficient and easily recoverable catalyst. [ABSTRACT FROM AUTHOR]