A new efficient method using the Mannich three-component reaction in one pot to synthesize [1+2+1]- and [2+4+2]-macrocyclic compounds possessing a propargylamine backbone was reported. Interestingly, 1,4-diazepane as a multiuse reagent played the part of a substrate to participate in the Mannich reaction and acted as a base to promote the Eglinton-Glaser dimerizations in the coordination processes simultaneously via a one-pot procedure. The target macrocycles were obtained in good yields.
报道了一种新颖高效的方法,使用Mannich三组分反应在一个反应釜中合成具有炔基胺骨架的[1+2+1]-和[2+4+2]-大环化合物。有趣的是,作为多用途试剂的1,4-二氮杂
环庚烷同时作为底物参与Mannich反应,并作为碱促进Eglinton-Glaser二聚反应,通过一锅法进行协调过程。目标大环化合物以良好的产率获得。