过渡金属盐促进的纳米氢化钠对硝基的还原反应

摘要/Abstract

摘要： 研究了在过渡金属盐促进下,纳米尺寸的活性氢化钠对硝基化合物的还原反应。结果表明,过渡金属盐的存在,使纳米氢化钠(NaH^*)的还原活性进一步增强,硝基苯的转化率在较短时间内就超过90%.镍盐对生成苯胺的选择性最好(100%),其次是锰盐。不同纳米碱金属氢化物对硝基苯还原的活性和生成苯胺的选择性顺序为NaH^*>KH^*>LiH^*.几种硝基化合物的反应结果表明,NaH^*-镍盐是硝基还原生成芳胺有效的复合还原剂

关键词: 纳米氢化钠, 过渡金属盐, 硝基还原

Abstract: The reduction of nitro compounds by the nanometric sodium hydride(NaH^*)in the presence of a transition metal salt has been studied. The results show that the reductive activity of the nanometric NaH is greatly enhanced by the addition of a transition metal salt, so that a conversion of nitrobenzene over 90% can be achieved in a short time. It is found that nickel salt is the best promoter for the aniline formation, then is the manganese salt. Different hydrides(LiH^*, NaH^*, KH^*)exhibit different selectivities towards reaction pro ducts in the reduction of nitrobenzene. The results of reduction of several nitro compounds reveal that the combination of NaH^* and a nickel salt is an effective reagent for the reduction of aromatic nitro compounds to their corresponding amines.

Key words: nanometric sodium hydride, transition metal salt, nitro compound reduction

张莉, 廖世健, 徐筠, 张文明, 余道容. 过渡金属盐促进的纳米氢化钠对硝基的还原反应[J]. 应用化学, 1997, 0(6): 18-21.

Zhang Li, Liao Shijian, Xu Yun, Zhang Wenming, Yu Daorong. Reduction of Nitro Compounds Using Nanometric Sodium Hydride Promoted by Transition Metal Salt[J]. Chinese Journal of Applied Chemistry, 1997, 0(6): 18-21.

[1]	范荫恒, 武美霞, 侯瑞, 廖世健. 茂钛配合物/纳米氢化钠高活性加氢催化剂活性物种相态[J]. 应用化学, 2009, 26(3): 349-351.
[2]	范荫恒, 邹云玲, 金丹, 吴强, 刘通, 徐杰. 纳米nah高化学反应活性[J]. 应用化学, 2007, 24(1): 21-24.

过渡金属盐促进的纳米氢化钠对硝基的还原反应

Reduction of Nitro Compounds Using Nanometric Sodium Hydride Promoted by Transition Metal Salt

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