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Zn 1,3,5-benzenetricarboxylate as an efficient catalyst for the synthesis of cyclic carbonates from CO2

机译：Zn 1,3,5-苯甲酸酯作为合成CO2的环状碳酸酯的有效催化剂

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摘要

Development of heterogeneous catalysts for the cycloaddition of CO2 with epoxides to produce cyclic carbonates is a hot issue in the field of chemical fixation of carbon dioxide. It is fairly promising as production of by-products is quite low. In this study, the [Zn-3(BTC)(2)]/n-Bu4NBr catalytic system was investigated for the solventless cycloaddition of carbon dioxide with epoxides and had an excellent synergetic effect in promoting the reaction. The reaction parameters were moderate i.e. (130 degrees C and 13 bar CO2 pressure) and were selected by a study of the catalytic system. Under the optimal reaction conditions, the yield of cyclic carbonate reached 99%. A decrease in the yield of cyclic carbonate was not apparent after [Zn-3(BTC)(2)] was reused three times, indicating that [Zn-3(BTC)(2)] was stable. At the same time, the catalytic activity of the catalyst for other epoxides was also verified. The acidic and alkaline nature of the [Zn-3(BTC)(2)] catalyst did not change obviously after recycling the catalyst three times. In this study it is also verified that the [Zn-3(BTC)(2)] catalytic cycloaddition reaction was closely related to the Lewis acid/base distribution. In addition, a plausible mechanism for the synergistic effect of the catalyst (Lewis acid and base properties) and the co-catalyst was suggested.
机译：用环氧化物环形加成二氧化碳环加成的异质催化剂的开发是在二氧化碳的化学固定领域中的一个热门问题。由于副产品的生产相当低，这是相当高的。在该研究中，研究了用环氧化物的二氧化碳的无溶剂环加成的[Zn-3（BTC）（2）] / N-BU4BR催化系统，并在促进反应方面具有出色的协同作用。反应参数均为中等的I.（130℃和13巴CO 2压力），通过研究催化体系选择。在最佳反应条件下，环状碳酸盐的产率达到99％。在将[Zn-3（2）（2）]重复使用三次后，环状碳酸盐产率的降低不明显，表明[Zn-3（BTC）（2）]稳定。同时，还验证了其他环氧化物催化剂的催化活性。 [Zn-3（BTC）（2）]催化剂的酸性和碱性性质在再循环催化剂三次后没有显得明显改变。在该研究中，还验证了[Zn-3（BTC）（2）]催化环加成反应与路易斯酸/碱分布密切相关。此外，提出了催化剂（路易斯酸和基础特性）和助催化剂的协同作用的可粘合机制。

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  • 来源
    《RSC Advances》 |2018年第17期|共10页
  • 作者

    Feng Chao; Cao Xianglei; Zhang Liugen; Guo Changyan; Akram Naeem; Wang Jide;

  • 作者单位

    Xinjiang Univ Minist Educ Key Lab Oil &

    Gas Fine Chem Urumqi 830046 Xinjiang Peoples R China;

    Xinjiang Univ Minist Educ Key Lab Oil &

    Gas Fine Chem Urumqi 830046 Xinjiang Peoples R China;

    Xinjiang Univ Minist Educ Key Lab Oil &

    Gas Fine Chem Urumqi 830046 Xinjiang Peoples R China;

    Xinjiang Univ Minist Educ Key Lab Oil &

    Gas Fine Chem Urumqi 830046 Xinjiang Peoples R China;

    Xinjiang Univ Minist Educ Key Lab Oil &

    Gas Fine Chem Urumqi 830046 Xinjiang Peoples R China;

    Xinjiang Univ Minist Educ Key Lab Oil &

    Gas Fine Chem Urumqi 830046 Xinjiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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