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    • 9. 发明授权
    • Magnetic nanoparticle-supported glutathione as a sustainable organocatalyst
    • 磁性纳米粒子支持的谷胱甘肽作为可持续的有机催化剂
    • US08324125B2
    • 2012-12-04
    • US12553681
    • 2009-09-03
    • Rajender S. VarmaVivek Polshettiwar
    • Rajender S. VarmaVivek Polshettiwar
    • C07F15/04C07F15/06C07C321/04C07D207/323C07D401/06C07D207/325
    • B01J31/0271B01J31/0228B01J31/0254B01J35/0033B01J37/0209C07C227/10C07C323/60C07D207/323C07D207/325C07D405/06C07C229/12C07C229/14C07C229/18
    • This invention relates to the use of nano-organocatalysts, and, more specifically, to the use of magnetic nanomaterial-supported organocatalysts. It is an object of the present invention to provide “green” catalysts and protocols. According to one embodiment of the invention, a nano-organocatalyst in the form of a magnetic nanomaterial-supported organocatalyst is provided. According to other embodiments of the invention, glutathione and cysteine are provided as organocatalysts and magnetic nanomaterial-supported glutathione and magnetic nanomaterial-supported cysteine are provided for use as nano-organocatalysts. According to another embodiment of the invention, a method of using a recyclable magnetic nanomaterial-supported organocatalyst using a totally benign aqueous protocol, without using any organic solvent in the reaction or during the workup, is provided. According to a further embodiment of the invention, a recyclable magnetic nanomaterial-supported organocatalyst for various organocatalytic reactions, including but not limited to Paal-Knorr reactions, aza-Michael addition and pyrazole synthesis, is provided.
    • 本发明涉及纳米有机催化剂的用途,更具体地说,涉及使用磁性纳米材料负载的有机催化剂。 本发明的目的是提供绿色催化剂和方案。 根据本发明的一个实施方案,提供了纳米材料负载有机催化剂形式的纳米有机催化剂。 根据本发明的其它实施方案,提供谷胱甘肽和半胱氨酸作为有机催化剂,并提供磁性纳米材料负载的谷胱甘肽和磁性纳米材料负载的半胱氨酸用作纳米有机催化剂。 根据本发明的另一个实施方案,提供了使用完全良性水溶液方案使用可回收的磁性纳米材料负载的有机催化剂的方法,而不在反应中或在后处理中使用任何有机溶剂。 根据本发明的另一个实施方案,提供了用于各种有机催化反应的可回收的磁性纳米材料负载的有机催化剂,包括但不限于Paal-Knorr反应,aza-Michael加成和吡唑合成。