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苯偶酰的绿色催化合成及表征

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倪婉敏, 张一平, 姜穗媛, 吴雪婧, 周倩倩, 周芝, 陈梦倩. 苯偶酰的绿色催化合成及表征[J]. 环境化学, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
引用本文: 倪婉敏, 张一平, 姜穗媛, 吴雪婧, 周倩倩, 周芝, 陈梦倩. 苯偶酰的绿色催化合成及表征[J]. 环境化学, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
shu
NI Wanmin, ZHANG Yiping, JIANG Suiyuan, WU Xuejing, ZHOU Qianqian, ZHOU Zhi, CHEN Mengqian. Green synthesis of benzil and its structure characterization[J]. Environmental Chemistry, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
Citation: NI Wanmin, ZHANG Yiping, JIANG Suiyuan, WU Xuejing, ZHOU Qianqian, ZHOU Zhi, CHEN Mengqian. Green synthesis of benzil and its structure characterization[J]. Environmental Chemistry, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
shu

苯偶酰的绿色催化合成及表征

  • 1.

    浙江外国语学院科技学院化学系, 杭州, 310012

  • 基金项目:

    国家自然科学基金(41503082),浙江省自然科学基金(LQ13D030001),浙江外国语学院科技学院精品课程项目,浙江外国语学院大学生创新训练计划项目资助

Green synthesis of benzil and its structure characterization

  • 1.

    Department of Chemistry, College of Science and Technology, Zhejiang International Studies University, Hangzhou, 310012, China

  • Fund Project: Supported by the National Natural Science Foundation of China (41503082), Natural Science Foundation of Zhejiang Province (LQ13D030001), Elaborate course in College of Science and Technology of Zhejiang International Studies University, Student Innovation Training Program of Zhejiang international studies university.

  • 摘要: 以金属与双水杨醛缩乙二胺合成的金属配合物Co(salen)作为均相催化剂,用空气氧化安息香合成苯偶酰,通过四因素三水平正交试验(温度、催化剂用量、KOH添加量和反应时间)的设计,探索Co(salen)催化氧化安息香的最佳条件,并以Co(salen)作为研究对象,探索最佳条件下NaY 分子筛负载催化剂和不对称Schiff碱配合物对安息香的催化氧化效果,应用X射线晶体衍射(XRD)、1H NMR核磁共振波谱、红外光谱、紫外光谱和高效液相色谱HPLC等手段对制得的席夫碱和氧化产物进行分析表征,同时考察催化剂的回收套用效果.结果表明,在35℃下反应80 min,添加1 g催化剂和1.5 g KOH时,Co(salen)催化剂产率最高可达96%以上,回收套用催化剂2次最佳,产率仍可达到77.8%.NaY分子筛和不对称希夫碱金属催化剂在最优条件下产率低于Co(salen)催化剂,NaY分子筛作为载体能在重结晶过滤的阶段直接有效地将产物和催化剂分离,能更有效地重复利用.合成产物经HPLC和1H NMR核磁共振波谱分析,验证了其为较高纯度的苯偶酰.
    Abstract: In this paper, active metal, bis-salicylaldehyde, and ethylene diamine were used for preparation of a homogeneous catalyst, metal complexes (Co(Salen)). Co(Salen) was used as catalyst, and air was used as oxidant, to synthesize benzil from benzoin. Four factors (temperature, catalyst dosage, KOH content and reaction time) and three levels orthogonal test L9 (34) was applied, to explore the optimal condition for green synthesis of benzil under catalysis of Co(Salen). NaY zeolite supported catalyst and asymmetric Schiff base were used to prepare benzil under optimal condition of Co(Salen), to compare the catalytic efficiency for different catalysts. X-ray crystal diffraction (XRD), nuclear magnetic resonance (1H NMR) spectrum, infrared spectrum, ultraviolet spectrum and high performance liquid chromatography (HPLC) were used to analyze the structure of Schiff base and oxidation products, and recycling of catalyst was further studied. The results showed that the optimal condition for Co (salen) catalyst was at temperature of 35℃, with reaction time of 80 min, and addition of 1 g catalyst and 1.5 g KOH, with yield up to 96%. The best recycling of catalyst was two times, with yield higher than 77.8%. The yield of NaY zeolite supported catalyst and asymmetric Schiff base under the optimal condition of Co (salen) catalyst is lower than Co (salen) catalyst. However, NaY zeolite can be directly separated with products in recrystallization filtering phase, and was more convenient for recycling. Synthesized products were characterized by 1H NMR and HPLC analysis, and confirmed as benzil with high purity.
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  • 收稿日期:  2015-11-22
  • 刊出日期:  2016-05-15
倪婉敏, 张一平, 姜穗媛, 吴雪婧, 周倩倩, 周芝, 陈梦倩. 苯偶酰的绿色催化合成及表征[J]. 环境化学, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
引用本文: 倪婉敏, 张一平, 姜穗媛, 吴雪婧, 周倩倩, 周芝, 陈梦倩. 苯偶酰的绿色催化合成及表征[J]. 环境化学, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
shu
NI Wanmin, ZHANG Yiping, JIANG Suiyuan, WU Xuejing, ZHOU Qianqian, ZHOU Zhi, CHEN Mengqian. Green synthesis of benzil and its structure characterization[J]. Environmental Chemistry, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
Citation: NI Wanmin, ZHANG Yiping, JIANG Suiyuan, WU Xuejing, ZHOU Qianqian, ZHOU Zhi, CHEN Mengqian. Green synthesis of benzil and its structure characterization[J]. Environmental Chemistry, 2016, 35(5): 1035-1041. doi: 10.7524/j.issn.0254-6108.2016.05.2015112204
shu

苯偶酰的绿色催化合成及表征

  • 1. 浙江外国语学院科技学院化学系, 杭州, 310012
  • 收稿日期:  2015-11-22
基金项目:

国家自然科学基金(41503082),浙江省自然科学基金(LQ13D030001),浙江外国语学院科技学院精品课程项目,浙江外国语学院大学生创新训练计划项目资助

摘要: 以金属与双水杨醛缩乙二胺合成的金属配合物Co(salen)作为均相催化剂,用空气氧化安息香合成苯偶酰,通过四因素三水平正交试验(温度、催化剂用量、KOH添加量和反应时间)的设计,探索Co(salen)催化氧化安息香的最佳条件,并以Co(salen)作为研究对象,探索最佳条件下NaY 分子筛负载催化剂和不对称Schiff碱配合物对安息香的催化氧化效果,应用X射线晶体衍射(XRD)、1H NMR核磁共振波谱、红外光谱、紫外光谱和高效液相色谱HPLC等手段对制得的席夫碱和氧化产物进行分析表征,同时考察催化剂的回收套用效果.结果表明,在35℃下反应80 min,添加1 g催化剂和1.5 g KOH时,Co(salen)催化剂产率最高可达96%以上,回收套用催化剂2次最佳,产率仍可达到77.8%.NaY分子筛和不对称希夫碱金属催化剂在最优条件下产率低于Co(salen)催化剂,NaY分子筛作为载体能在重结晶过滤的阶段直接有效地将产物和催化剂分离,能更有效地重复利用.合成产物经HPLC和1H NMR核磁共振波谱分析,验证了其为较高纯度的苯偶酰.

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