摘要
以溴化亚铜/2,2′-联吡啶配合物为催化剂,以乙腈为溶剂,研究了六氟丙烯的齐聚反应.产物结构通过核磁共振氟谱进行了表征.同时,考察了催化剂用量、反应温度及反应时间对齐聚反应的影响.实验结果显示,在室温下,该催化剂能高效、高选择性地催化六氟丙烯进行二聚反应,生成了反式结构的六氟丙烯二聚体.与已有的催化剂相比,溴化亚铜/2,2′-联吡啶配合物为催化剂不仅具有高活性、高选择性及对环境友好的优点,而且还能使反应在室温下进行,有利于节能、降低生产成本.
The dimerization of hexafluoropropylene was investigated using the coordination complex（copper（Ⅰ） bromide/2,2′-bipyridyl） as a catalyst and acetonitrile as solvent.The influences of the catalyst concentration,reaction temperature and time were also examined.The experimental results demonstrate that,at room temperature the catalyst can effectively catalyze the dimerization of hexafluoropropylene and one of the dimers（（E）-1,1,1,2,3,4,5,5,5-nonafluoro-4-（trifluoromethyl）pent-2-ene） is selectively produced when the concentration of the catalyst is low.Compared the other conventional catalysts such as alkali metal fluoride and alkali metal cyanide,this catalyst has more advantages,such as high activity,high selectivity and environmental friendliness.Moreover,the reaction can be performed at room temperature,which saves energy and brings down production cost.
基金
国家自然科学基金(20974104)资助
关键词
六氟丙烯
齐聚
溴化亚铜/2
2′-联吡啶
hexafluoropropylene
oligermerization
copper（Ⅰ） bromide
2
2′-bipyridyl
