<scp>Rh‐Catalyzed</scp>
Formal [3+2] Cyclization for the Synthesis of
<scp>5‐Aryl</scp>
‐2‐(quinolin‐2‐yl)oxazoles and Its Applications in Metal Ions Probes
作者:Tongtong Zhou、Xinwei He、Youpeng Zuo、Yuhao Wu、Wangcheng Hu、Shiwen Zhang、Jiahui Duan、Yongjia Shang
DOI:10.1002/cjoc.202000454
日期:2021.3
efficient strategy for the synthesis of 5‐aryl‐2‐(quinolin‐2‐yl)oxazoles via rhodium‐catalyzed formal [3+2] cyclization of 4‐aryl‐1‐tosyl‐1H‐1,2,3‐triazoles with quinoline‐2‐carbaldehydes has been described. The protocol employs mild conditions and offers good yields of diverse 2,5‐aryloxazole derivatives with a broad reaction scope. It is amenable to gram‐scale synthesis and easily transformation.
通过铑催化4-芳基-1-甲苯磺酰基-1 H 1,2的正式[3 + 2]环化反应,合成5-芳基-2-(喹啉-2-基)恶唑的简便有效方法,已经描述了3-三唑与喹啉-2-甲醛。该方案采用温和的条件,并具有良好的反应范围,可提供各种2,5-芳基恶唑衍生物的良好收率。它适用于克级合成和轻松转换。此外,这种5-芳基-2-(喹啉-2-基)恶唑骨架确实是一种新的荧光团,并且还研究了其在金属离子探针中的应用,并显示了对汞离子的荧光响应。