The aminocarbonylation of 1,2-diiodoarenes with primary and secondary amines catalyzed by palladium complexes with imidazole ligands
作者:Przemysław Wójcik、Anna M. Trzeciak
DOI:10.1016/j.apcata.2018.04.043
日期:2018.6
The efficient carbonylative cyclization of 1,2-diiodobenzene with different primary and secondary amines was performed using a palladium complex with an imidazole ligand, PdCl2(BIM)2, as a catalyst. In reactions performed at 1 atm of CO with primary amines, phthalimides were obtained as the only products with yields of up to 100% in 4 h. An even shorter time, 1 h, was sufficient to obtain the same
使用具有咪唑配体PdCl 2(BIM)2的钯配合物作为催化剂,用不同的伯胺和仲胺对1,2-二碘苯进行有效的羰基环化反应。在1大气压的CO与伯胺进行的反应中,邻苯二甲酰亚胺是唯一的产物,在4小时内收率高达100%。甚至更短的1小时时间也足以获得使用2-碘代苯甲酸甲酯代替1,2-二碘代苯作为底物的相同产品。在与仲胺的类似反应中,1,2-二碘苯被转化为三种产物,其形成量取决于反应条件。Pd NP和可溶性钯中间体的存在表明它们参与了催化反应。