1349175-35-4Relevant academic research and scientific papers
Access to enhanced catalytic core-shell CuO-Pd nanoparticles for the organic transformations
Mishra, Kanchan,Basavegowda, Nagaraj,Lee, Yong Rok
, p. 27974 - 27982 (2016)
This paper describes the biosynthesis of core-shell CuO-Pd nanoparticles with the aid of a Cyperus rotundus rhizome extract. The crystallinity, surface chemistry, morphology and thermal properties of the synthesized nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and thermogravimetric analysis. The nanoparticles with Pd covered by a CuO enriched shell showed enhanced catalytic performance for organic transformations to synthesize 2,3-dihydroquinazolin-4(1H)-ones, spirooxindoles, and chromenylpyrimidin-2,4-diones in excellent yield. Moreover, the nanocatalyst can be recycled effectively for five consecutive reactions without significant loss of catalytic activity.
Ethylenediamine diacetate-catalyzed three-component reaction for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones and their spirooxindole derivatives
Narasimhulu, Manchala,Lee, Yong Rok
experimental part, p. 9627 - 9634 (2011/12/14)
Ethylenediamine diacetate (EDDA)-catalyzed one-pot syntheses of biologically interesting 2,3-dihydroquinazolin-4(1H)-ones and their spirooxindole derivatives from isatoic anhydride, amines, and benzaldehydes or isatins via a three-component condensation in aqueous media have been described. This method is of great value because of high yields and ease of handling.
