【摘要】 <正> 由1,3-丁二烯经环化三聚反应可制得环1,5,9-十二碳三烯(以下简称环十二碳三烯或以英文缩写CDT表示),后者再经选择性催化加氢即可得到环十二碳一烯(英文缩写CDE)。更多还原

【Abstract】 in order to prepare cyclododecene, the selective hydrogenation reaction was carried out without solvent with bis (triphenylphosphine) nickel diiodide as a catalyst. The effects of the reaction conditions, i.e. temperature, pressure, reaction time and dosage of the catalyst, on the conversion of 1,5,9-cyclododecatriene and the selectivity of cyclododecene formation were examined. The experimental results showed that the catalyst possesses good activity and excellent selectivity. Under conditions of 150±5℃, 75±5 kg/cm~2, 6 hr. and catalyst dosage of 5％, both the conversion and selectivity were over 95％.更多还原