Catalytic fluoride triggers dehydrative oxazolidinone synthesis from CO2
Catalytic fluoride triggers dehydrative oxazolidinone synthesis from CO2
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DOI：
10.1039/c4ra09609f
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发表时间：
2014-10
期刊：
影响因子：
3.9
通讯作者：
Y. Takada;S. W. Foo;Y. Yamazaki;S. Saito
中科院分区：
文献类型：
--
作者：
Y. Takada;S. W. Foo;Y. Yamazaki;S. Saito
在本文中，催化氟化物（F−）被证明是大气压CO2脱水固定化的触发剂，使得CO2与衍生自天然氨基酸的β-氨基醇的反应以高产率产生光学纯的恶唑烷酮。氟化物和有机硅试剂的协同组合（例如，Bu 4 NF + Ph 3SiF或硅氧烷）增强了催化活性和官能团相容性。该系统位于均相和多相催化之间的界面，并可能被证明是有用的可回收/可重复使用的基于正戊烷的CO2固定化材料的发展。
Herein, catalytic fluoride (F−) is demonstrated to be a trigger for dehydrative immobilization of atmospheric pressure CO2, such that reaction of CO2 with β-amino alcohols derived from natural amino acids gives optically pure oxazolidinones in high yields. A synergistic combination of fluoride and organosilicon agents (e.g., Bu4NF + Ph3SiF or siloxanes) enhances the catalytic activity and functional group compatibility. This system lies at the interface between homogenous and heterogeneous catalysis, and may prove useful for the development of recoverable/reusable siloxane-based CO2 immobilization materials.