especially useful in generating active catalysts for hydroamination and hydrohydrazination. From these reactions, new methodologies for the synthesis of imines, hydrazones, alpha,beta-unsaturated imines, pyridines, indoles, and pyrroles have developed. In addition, a new reaction that is mechanistically related to hydroamination, alkyne iminoamination, has been discovered. Iminoamination, which is a
具有两个碱性二甲基酰胺基
配体的
钛(IV)络合物可以成为
伯胺进行
炔烃加
氢胺化的有效催化剂。已经证明,现成的
吡咯基
配体在产生用于加
氢胺化和加氢
肼化的活性催化剂中特别有用。从这些反应中,已经开发出用于合成
亚胺,,α,β-不饱和
亚胺,
吡啶,
吲哚和
吡咯的新方法。另外,已经发现了与加
氢胺机械相关的新反应,即炔亚
氨基胺。
氨基胺是胺,
炔烃和异腈之间的多组分偶联,可在单个
钛催化步骤中提供不对称的α,β-不饱和β-亚
氨基胺。