作者:Alfred Hassner、Guy Patchornik、Tarun K. Pradhan、R. Kumareswaran
DOI:10.1021/jo061900m
日期:2007.1.1
an intermolecular electrophilic O-amination of aliphatic alcohols. Thus, the new reagents, fluorenone oxime tosylate, 5a, or mesylate, 5b, permit O-amination of diverse alcohols in the presence of NaH under mild conditions. By following the formation of the resulting oxime ethers, 6, the reaction was shown to be sensitive to steric effects in the alcohol. Furthermore, the presence of an aromatic ring
我们报道了脂族醇的分子间亲电O-胺化的第一个例子。因此,新试剂甲苯磺酸芴酮肟5a或甲磺酸甲苯磺酸酯5b允许在温和条件下在NaH存在下对多种醇进行O胺化。通过跟踪生成的肟醚6,表明该反应对醇中的空间效应敏感。此外,发现在醇分子(苄基,烯丙基)中存在芳环或双键可提高反应速率。