observed dynamic equilibrium in solution. The use of copper(I) complex 2 as catalyst for the synthesis of propargylamines via A3-coupling reactions has been tested. Complex 2 is capable of promoting A3-coupling reactions of both aromatic and aliphatic aldehydes with cyclic secondary amines and phenylacetylene. The reaction proceeds under mild condition and absence of solvent.
摘要合成了一种新型的含叔丁基
二烯丙基膦配体[CuCl tBu-P( CH =
CH2)2}] 4(2)的四聚
铜(I)配合物,并通过结构和光谱方法对其进行了表征。X射线衍射分析表明,2具有像式[CuCl κ1(P)-tBu-P( CH = )2}] 4的类古巴固体结构。在溶液中,通过可变温度NMR分析检测了由古巴⇄椅异构化产生的动力学行为。已进行DFT计算以解释溶液中观察到的动态平衡。已经测试了使用
铜(I)配合物2作为经由A 3偶联反应合成
炔丙胺的催化剂。配合物2能够促进芳族和脂族醛与环状仲胺和
苯乙炔的A 3偶联反应。