Convenient synthesis and single-crystal X-ray structures of two tetrafluoro[2,2]paracyclophane isomers
作者:Alfonso Dávila、Jorge O Escobedo、Mark W Read、Frank R Fronczek、Robert M Strongin
DOI:10.1016/s0040-4039(01)00527-5
日期:2001.5
Fluorinated [2,2]paracyclophanes are useful precursors to poly(p-xylylene) polymers. The cyclophanes 1,1,9,9-tetrafluoro[2,2]p-cyclophane (3a) and 1,1,10,10-tetrafluoro[2.2]p-cyclophane (3b) can be readily prepared via a convenient two-step synthesis from the parent hydrocarbon [2,2]p-cyclophane (1). The structures of 3a and 3b are confirmed via single crystal X-ray analysis.
氟化的[2,2]对环环烷酮是聚对二甲苯聚合物的有用前体。可以通过方便的两步法轻松地制备环1,1,9,9-四氟[2,2]对-环烯(3a)和1,1,10,10-四氟[2.2]对-环烯(3b)。由母体烃[2,2]对环环烷(1)进行一步合成。通过单晶X射线分析确认了3a和3b的结构。