作者:Youjun Yang、Jorge O. Escobedo、Alexander Wong、Corin M. Schowalter、Michael C. Touchy、Lijuan Jiao、William E. Crowe、Frank R. Fronczek、Robert M. Strongin
DOI:10.1021/jo051002a
日期:2005.8.1
A facile synthetic route utilizing readily available reagents affords a series of regioisomerically pure xanthene dye derivatives. Advantages include relatively mild conditions and good to excellent yields. Nonpolar, highly crystalline intermediates are isolable by standard chromatographic techniques. The intermediates are in the requisite xanthene oxidation state, thus avoiding the need for relatively
利用容易获得的试剂的简便合成路线提供了一系列区域异构纯的x吨染料衍生物。优点包括相对温和的条件和良好至极好的产量。非极性,高度结晶的中间体可通过标准色谱技术分离。中间体处于必要的x吨氧化态,因此避免了对效率相对较低的氧化化学和/或苛刻条件的需要。在这项工作的过程中,发现了新的硼介导的1,2-芳基迁移反应。