Diversity-Oriented Microwave-Assisted Synthesis of the 3-Benzazepine Framework
作者:Vsevolod A. Peshkov、Olga P. Pereshivko、Pavel A. Donets、Vaibhav P. Mehta、Erik V. Van der Eycken
DOI:10.1002/ejoc.201000583
日期:2010.9
An efficient diversity-oriented procedure for the two-step synthesis of 3-benzazepines is described. The CuI -catalyzed three-componentcoupling of an aldehyde, an alkyne and an amine (A 3 -coupling) provides the required propargylamines and assures the generation of diversity. The Pd-catalyzed intramolecular acetylene hydroarylation reaction selectively creates the seven-membered 3-benzazepine framework
描述了一种用于 3-苯并氮杂的两步合成的高效的面向多样性的程序。Cu I 催化的醛、炔和胺的三组分偶联(A 3 -偶联)提供了所需的炔丙胺并确保了多样性的产生。Pd 催化的分子内乙炔加氢芳基化反应选择性地产生七元 3-苯并氮杂骨架,完全控制环大小和双键周围的几何形状。微波辐射被证明在促进这两个步骤方面非常有效。