Journal
APPLIED ORGANOMETALLIC CHEMISTRY
Volume 34, Issue 12, Pages -Publisher
WILEY
DOI: 10.1002/aoc.5989
Keywords
GO; Fe3O4@SPNC nanocatalyst; graphene oxide; multicomponent reaction; N-6-Schiff base; pyrido[2; 3-d]pyrimidine-7-carbonitrile
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Funding
- University of Bu-Ali Sina
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In this article, the synthesis of a novel and highly efficient recyclable and reusable heterogeneous nanocatalyst has been reportedviathe functionalizing of the Fe3O4-magnetized graphene oxide nanosheets with theN(6)-Schiff base Cu (II) complex (GO/Fe3O4@SPNC). The structure of this novel nanocatalyst was determined by different analytical techniques such as FTIR, FE-SEM, TEM, TGA-DTG, and VSM. The catalytic activity of the synthesized GO/Fe3O4@SPNC nanocatalyst was explored for the synthesis of several new 2H-pyrido[3 ',2 ':6,7]pyrano[2,3-d]pyrimidine-7-carbonitrile derivatives with excellent yields. All new derivatives were fully identified by various spectral (H-1 NMR,C-13 NMR, FT-IR, ESI-MS) analyses. In addition, this nanocatalyst carried out satisfactory catalytic maintenance of activity and high chemical stability in the titled reactions after seven-time of recycling without substantial loss of leaching.
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