制备的基于硫酸的离子液,用于催化转化furfuryl酒精到乙烯基levulinate
Aiyun Hu1,2, Shan Li1, Sheng Zhang1
1Shazhou Professional Institute of Technology, Zhangjiagang, Jiangsu 215600, China.
ACS omega
|April 1, 2024
概括
一种新型的甲硫酸离子液体催化剂[PSna][HSO4],可以高效地将醇转化为乙烯氨酸,产量很高. 这种持久的催化剂在五个循环中表现出极好的可重复使用性,展示了其对可持续化学合成的潜力.
科学领域:
- 绿色化学 绿色化学
- 催化剂是一种催化剂.
- 离子液体是一种离子液体.
背景情况:
- 布伦斯特德酸在有机合成中至关重要.
- 开发高效和稳定的酸催化剂对于可持续的化学过程至关重要.
- 离子液体作为催化介质具有独特的特性.
研究的目的:
- 为了合成一种新型的烯基硫酸离子液体催化剂,[PSna][HSO4].
- 为了评估[PSna][HSO4]的催化性能和稳定性,用于醇转化.
- 通过密度函数理论 (DFT) 的计算来研究反应机制.
主要方法:
- 从尼亚和1,3-propanesulfonic乳中合成[PSna][HSO4]. 在这种过程中,
- 催化测试[PSna][HSO4]在110°C进行2小时的furfuryl酒精转化.
- 催化剂的回收实验最多可以进行五个周期.
- 密度函数理论 (DFT) 计算以阐明反应路径和能量障碍.
主要成果:
- 在最佳条件下实现了97.79%的furfuryl酒精转化和96.10%的乙烯基氨酸产量.
- 证明了催化剂的可重复使用性,在五个周期中保持了高产量 (93.74%的转化率,88.17%的产量).
- DFT计算确定了关键的反应路径和过渡状态.
结论:
- 合成的[PSna][HSO4]是一种高效且稳定的布伦斯特酸催化剂.
- 催化剂具有很好的可回收性,支持其在可持续合成中的应用.
- [PSna][HSO4]为传统的酸催化剂提供了一个有希望的替代品.
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