结晶的olefin-linked chiral共价有机框架作为一个平台的不对称催化剂
Ting He1, Ivan Keng Wee On2, Shuai Bi1
1School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
研究人员为不对称催化开发了稳定,晶体性性共价有机框架 (COFs). 这些新型的氨酸结合COF表现出卓越的酶选择性和可回收性,推进了性催化剂设计.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 催化剂是一种催化剂.
背景情况:
- 状共价有机框架 (COF) 对不对称催化非常重要.
- 构建高度结晶的,与氨酸结合的性COF是具有挑战性的,因为反应可逆性有限,阻碍了自我愈合.
- 对于有效的催化,COF内部的催化位点的均分布至关重要.
研究的目的:
- 为了合成具有高晶度的新型,反体烯酸链合体COFs.
- 为了研究这些COF在不对称催化中的催化性能.
- 评估性COF催化剂的稳定性和可回收性.
主要方法:
- 合成了两组与烯相关联的反体COFs.
- 对COF结构和孔状性质的表征.
- 在电友氨化反应中对催化活性和酶选择性的评估.
- 在多个催化循环中测试可回收性和稳定性.
主要成果:
- 成功合成了高度结晶的,与烯酸结合的反体COFs.
- 在COF孔壁上实现了奇拉催化组的均分布.
- 证明了卓越的催化性能,在enantioselective电友性氨基化中>99%的反体过量.
- 确认了方便的可回收利用性和持续的性能超过十个周期.
结论:
- 通过氨酸链接,通过氨酸链接开发出稳定和结晶的性COF.
- 建立了一条用于构建用于不对称合成的先进性催化剂的新路线.
- 突出了这些COF在各种enantioselective转换中的潜力.
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