二氟[2,2]对环番的研究(Ⅰ)——催化裂解法制备二氟[2,2]对环番

STUDIES ON DIFLUORO[2,2]PARACYCLOPHANES-Ⅰ-PREPARATION OF DIFLUORO[2,2]PARACYCLOPHANE BY CATALYTIC PYROLYSIS

[2,2]对环番([2,2]Paracyclophane)及其衍生物,具有特殊的分子结构和化学物理性能,在理论和实际应用方面受到很大的重视[1,2]。曾有人报导用2-氟-4-甲基-1-苄基三甲基氢氧化铵■热分解制成聚2-氟对苯撑-■。

The title compound was prepared in 15%yield by the catalytic pyrolysis of 2-fluoro-p-xylene in the presence of platinum net at about 1000°C,with 1,2-dibromoethane as initiator.