Direct observation of the unstable intermediates in radical addition reaction by using an interfacing microchip combined with an NMR
作者:Masamichi Nakakoshi、Masafumi Ueda、Satoshi Sakurai、K. Asakura、Hiroshi Utsumi、Okiko Miyata、Takeaki Naito、Yutaka Takahashi
DOI:10.1002/mrc.2087
日期:2007.11
Direct observation of the unstable intermediate in the radical addition reaction of the oxime ether 1 mediated by triethylborane (Et3B) is described using 1H and 11B micro channeled cell for synthesis monitoring (MICCS), which was recently developed as an interfacing microchip for NMR. It was possible that the signal of the intermediate was observed as a result of using MICCS technique with a standard
使用 1H 和 11B 微通道单元进行合成监测 (MICCS) 描述了由三乙基硼烷 (Et3B) 介导的肟醚 1 自由基加成反应中不稳定中间体的直接观察,该单元最近被开发为用于 NMR 的接口微芯片。作为使用MICCS技术和标准NMR仪器的结果,可能观察到中间体的信号。该结果支持了之前论文中通过扩散有序光谱 (DOSY) NMR 方法分析的中间体的结构。微通道细胞合成监测-核磁共振(MICCS-NMR)的过程比DOSY方法容易得多。证明它可以应用于无水条件下的反应。版权所有 © 2007 John Wiley & Sons, Ltd.