钌膦二胺配合物中二胺结构的变化对羰基催化加氢性能的影响研究

钌膦二胺配合物中二胺结构的变化对羰基催化加氢性能的影响研究

论文摘要

本文合成了[(η6-C6H6)RuCl( μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4(2)和十五个RuCl2(diphosphine)(diamine)类型配合物,RuCl2(PPh3)2(L1-5) (1L1-5) [L1 =乙二胺; L2 =N,N’-二甲乙二胺; L3 = 环己二胺; L4 = 邻苯二胺; L5 = 4-三氟甲基邻苯二胺], RuCl2(BISBI)(L1-5)(2L1-5), [BISBI = 2,2’-二( (二苯基膦)甲基) -1, 1’-二苯基], RuCl2(BDPX)(L1-5)(3L1-5), [BDPX = 1,2-二((二苯基膦)甲基)苯], 其中[(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4(2)和十一个1L2-3,1L5, 2L2-5,3L2-5未见文献报道,通过(31)P、1H-NMR,元素分析和对其进行了表征。其中,配合物[(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4,RuCl2(BDPX)(L2) 得到X-射线单晶衍射结构分析,结构显示:[(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4 属于单斜晶系, P21/n 空间群, Z = 4, a = 14.498 A, b = 15.644 A, c = 20.788 A, a =90°, β= 103.404(3)°, A = 90°。配合物RuCl2(BDPX)(L4)属于三斜晶系, P-1 空间群, Z = 2, a = 10.6453A, b = 11.5320 A, c = 16.099 A, a = 76.964(2)°, β= 74.981(3)°, ? = 69.982(3)°。所有双膦二胺配合物都具有反式结构,在溶液中容易被氧化,它们在固态时均对空气较稳定。本文还系统地考察了[RuCl2(BISBI)(L3)]配合物用于苄叉丙酮的选择催化加氢反应,获得了最高达到99% 的转化率和97%的羰基催化加氢选择性。并考察了RuCl2(diphosphine)(diamine) 配合物中双膦和二胺结构的变化对催化苄叉丙酮的反应活

论文目录

  • 英文缩写词
  • 中文摘要
  • Abstract
  • 第一章 前言
  • 1.1 引言
  • 1.1.1 羰基的均相催化
  • 2(diphosphine)(diamine)配合物对羰基的催化加氢'>1.2 RuCl2(diphosphine)(diamine)配合物对羰基的催化加氢
  • 1.2.1 简单酮的催化加氢
  • 1.2.2 含 C=C 双键的不饱和醛、酮的选择性催化加氢
  • 1.2.3 机理研究
  • 2(diphosphine)(diamine)配合物的制备'>1.3 RuCl2(diphosphine)(diamine)配合物的制备
  • 1.4 研究意义及构想
  • 第二章 实验部分
  • 2.1 试剂
  • 2.2 仪器
  • 2.3 合成与表征
  • 2.3.1 配体的合成
  • 2.3.2 配合物的合成
  • 2.4 单晶 X-射线衍射分析
  • 2.5 催化加氢反应
  • 第三章 结果与讨论
  • 3.1 配合物的合成、表征
  • 3.1.1 配合2
  • 3.1.2 配合物5—9
  • 3.1.3 配合物10-14
  • 3.1.4 配合15-19
  • 3.2 苄叉丙酮的选择催化氢化反应
  • 3.2.1 压力队反应的影响
  • 3.2.2 温度对反应的影响
  • 3.2.3 不同碱对反应的影响
  • 3.2.4 碱浓度对反应的影响
  • 3.2.5 不同溶剂对反应的影响
  • 3.2.6 空气对反应的影响
  • 3.2.7 不同配合物对苄叉丙酮的选择性加氢反应的影响
  • 3.2.8 对不同底物催化加氢的反应活性
  • 第四章 结论
  • 参考文献
  • 文章发表情况
  • 致谢
  • 声明
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    钌膦二胺配合物中二胺结构的变化对羰基催化加氢性能的影响研究
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