The attempted synthesis of polyparatetrafluorophenylene vinylene via water-soluble and organic solvent-soluble precursor polymers
作者:Gerald M. Brooke、Simon D. Mawson
DOI:10.1016/s0022-1139(00)82182-x
日期:1990.10
2,3,5,6-Tetrafluoro-1,4-xylene-αα′-bis(dimethylsulphonium bromide) (5) and the related -αα′-bis(diethylsulphonium chloride) (6) were prepared by the reaction of αα′-dibromo-2,3,5,6-tetrafluoro-1,4-xylene (7) with dimethyl sulphide and of αα′-dichloro-2,3,5,6-tetrafluoro-1,4-xylene (7a) with diethyl sulphide, respectively. Compound (5) with aqueous alkali was converted into the dibromo compound (7)
通过αα'的反应制备了2,3,5,6-四氟-1,4-二甲苯-αα′-双(二甲基磺化溴化bro)(5)和相关的-αα′-双(二乙基磺化氯化))(6)。 -二溴-2,3,5,6-四氟-1,4-二甲苯(7)与二甲基硫醚和αα'-二氯-2,3,5,6-四氟-1,4-二甲苯(7a)与二甲基硫醚分别是二乙基硫醚。将具有碱水溶液的化合物(5)转化为二溴化合物(7),没有形成聚合物的迹象。化合物(6)不能与碱水溶液一起提供任何可行的产物。经由铜(I)中间体将2,3,5,6-四氟苯转化为1,4-二烯丙基-2,3,5,6-四氟苯(14),得到2,3,5,6-四氟苯- 1,4-二醛(13)用臭氧处理。1,4-二硫代-2,3,5,6-四氟苯(12)与二醛(13)的反应未能获得可溶于有机溶剂的可行聚合物