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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 2
BKCSDE 31(2)
February 20, 2010 

 
Title
Nickel Nanoparticles: An Ecofriendly and Reusable Catalyst for the Synthesis
of 3,4-Dihydropyrimidine-2(1H)-ones via Biginelli Reaction
Author
Suryakant B Sapkal, Kiran F Shelke, Bapurao B Shingate, Murlidhar S Shingare*
Keywords
Nickel, Nanoparticles, Biginelli reaction, Aldehydes, UV-visible
Abstract
Nickel nanoparticles (Ni NPs) appeared to exhibit the catalytic activity in one-pot cyclocondensation reaction for the preparation of 3,4-dihydropyrimidine-2(1H)-ones via Biginelli reaction from aromatic/heteroaromatic/aliphatic aldehydes, urea/thiourea and ethyl acetoacetate under microwave irradiation has been described. The UV absorbance spectra showed metallic Ni characteristics and appreciate with the particle size determined by Transmission electron microscopy (TEM). After reaction course the Ni NPs can be re-covered and reused without any apparent loss of activity.
Page
351 - 354
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