作者:Hashem Sharghi、Hossein Eshghi
DOI:10.1016/0040-4020(94)00980-9
日期:1995.1
Some new macrocyclic dibenzotrioxadiamides, tribenzotrioxadiamides and tetrabenzohexaoxatetraamide (1–9) have been prepared. Compounds (2–9) were obtained in the macrocyclization step by reacting the dicarboxylic acid dichloride (13) with appropriate diamine in CH2Cl2. The cyclization does not require high dilution techniques or template effect and provides the expected dilactams in high yields, ranging
已经制备了一些新的大环二苯并三恶二酰胺,三苯并三恶二酰胺和四苯并六草酸酯四酰胺(1–9)。在大环化步骤中,通过使二羧酸二氯化物(13)与适当的二胺在CH 2 Cl 2中反应,得到化合物(2–9)。环化不需要高稀释技术或模板效果,并能以80%至95%的高收率提供预期的双内酰胺。然而,二胺(14a)与二羧酸二氯化物(13)在高稀释条件下的反应以中等收率产生了二内酰胺(2)和四内酰胺(1)的混合物。