作者:J. Wyman、M. I. Javed、N. Al-Bataineh、M. Brewer
DOI:10.1021/jo101706h
日期:2010.12.3
Bicyclic diazenium salts have been prepared from α-chloroazo species via a Lewis acid-mediated intramolecular cycloaddition. An alternative, more direct, route to these salts by the reaction of hydrazones with dimethylsulfonium ditriflate is also described. Terminal olefins provided mixtures of fused and bridged bicyclic diazenium salts. The ratio of the fused and bridged species was observed to depend
已经通过路易斯酸介导的分子内环加成反应从α-氯偶氮物质制备了双环重氮盐。还描述了通过与二三氟甲磺酸二甲基s反应生成这些盐的另一种更直接的途径。末端烯烃提供了稠合和桥连的双环二氮烯鎓盐的混合物。观察到稠合和桥接的物质的比例取决于N-芳基取代基的电子,这可以通过考虑一致的异步环加成机理来解释。