efficient route towards 3-aryl-1,2-dihydroacridine derivatives from an aldol adduct of o-nitrobenzaldehyde and cyclohexenone derivatives has been described. In situ generated nickel boride was found to be an excellent reagent to construct the acridine framework via an intramolecular reductive cyclization reaction at ambient temperature under acid-free conditions. The reaction is proved to be compatible
已经描述了从
邻硝基苯甲醛和
环己烯酮衍
生物的羟醛加合物制备 3-芳基-1,2-二氢
吖啶衍
生物的简便且高效的途径。发现原位生成的
硼化镍是一种极好的试剂,可在无酸条件下在环境温度下通过分子内还原环化反应构建
吖啶骨架。该反应被证明是从毫克级到数克级的兼容。操作简单、产量高、底物范围广和可扩展性使该协议成为现有
吖啶衍
生物方法的宝贵补充。