Synthesis of New Planar-Chiral Linked [2.2]Paracyclophanes-N-([2.2]-Paracyclophanylcarbamoyl)-4-([2.2]Paracyclophanylcarboxamide, [2.2]Paracyclophanyl-Substituted Triazolthiones and -Substituted Oxadiazoles
作者:Ashraf A. Aly、Stefan Bräse、Alaa A. Hassan、Nasr K. Mohamed、Lamiaa E. Abd El-Haleem、Martin Nieger
DOI:10.3390/molecules25153315
日期:——
manuscript describes the synthesis of new racemic and chiral linked paracyclophane assigned as N-5-(1,4(1,4)-dibenzenacyclohexaphane-12-yl)carbamoyl)-5’-(1,4(1,4)-dibenzenacyclohexaphane-12-yl)carboxamide. The procedure depends upon the reaction of 5-(1,4(1,4)-dibenzenacyclohexaphane-12-yl)hydrazide with 5-(1,4(1,4)-dibenzenacyclohexaphane-12-yl)isocyanate. To prepare the homochiral linked paracyclophane
该手稿描述了新的外消旋和手性连接的对环芳烷的合成,指定为 N-5-(1,4(1,4)-dibenzenacyclohexaphane-12-yl)carbamoyl)-5'-(1,4(1,4)-二苯并环六烷-12-基)甲酰胺。该过程取决于 5-(1,4(1,4)-二苯并环六烷-12-基)酰肼与 5-(1,4(1,4)-二苯并环六烷-12-基)异氰酸酯的反应。为了制备化合物的同手性连接的对环芳烷,将 5-(1,4(1,4)-dibenzenenacyclohexaphane-12-yl) 甲醛(对映体纯度 60%ee)的对映选择性氧化成相应的酸,然后氯化,得到相应的 [2.2] 对环烷的酰氯。遵循与制备外消旋氨基甲酰基相同的程序并通过 HPLC 纯化,我们成功获得了目标 Sp-Sp-N-5-(1,4(1, 4)-二苯并环六烷-12-基)氨基甲酰基)-5'-(1,4(1,4)-二苯并环六烷-12-基)甲酰胺。将