78210-51-2Relevant articles and documents
An elegant protocol for the synthesis of N-substituted pyrroles through C-N cross coupling/aromatization process using CuFe2O4 nanoparticles as catalyst under ligand-free conditions
Satish,Reddy, K. Harsha Vardhan,Ramesh,Kumar, B.S.P. Anil,Nageswar
supporting information, p. 2596 - 2599 (2014/05/06)
A simple and efficient, ligand-free C-N cross-coupling of aryl halides/benzyl bromides with trans-4-hydroxy-l-proline has been developed to produce aromatized N-substituted pyrroles, using a catalytic amount of magnetically separable and recyclable CuFe2O4 nanoparticles, in the presence of Cs2CO3 in DMSO at 100 °C.
A new facile approach to N-alkylpyrroles from direct redox reaction of 4-hydroxy-l-proline with aldehydes
Zou, Zhiqin,Deng, Zejun,Yu, Xinhong,Zhang, Manman,Zhao, Sihan,Luo, Ting,Yin, Xin,Xu, Hui,Wang, Wei
experimental part, p. 43 - 49 (2012/03/13)
An unprecedented acetic acid-catalyzed efficient access to N-alkylpyrroles from reaction of 4-hydroxy-l-proline with a variety of aldehydes has been achieved in good to excellent yields under mild reaction conditions.
Magnetic Nanoparticle-Supported Glutathione as a Sustainable Organocatalyst
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Page/Page column 6-8, (2011/04/14)
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.