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Chinese Journal of Chemistry 2009, 27(12) 2418-2422 DOI:
ISSN: 1001-604X CN: 31-1547/O6 |
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PPA-SiO2 as a heterogeneous catalyst for efficient synthesis 2-substituted-2,3-dihydro-4(1H)-quinazolinones at room tem-mperature under solvent-free conditions? |
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SHATERIAN Hamid Reza*; OVEISI Ali Reza |
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Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran |
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Abstract：
Silica-supported polyphosphoric acid (PPA-SiO2) catalyzed efficiently the reaction of anthranilamide with aryl aldehydes or ketones under solvent-free conditions to afford the corresponding 1,2,3,4-tetrahydro-4-quinazolinone derivatives. This work consistently has the advantages of excellent yields, short reaction time, simple experimental and work-up procedures. The heterogeneous catalyst could be recovered and recycled for several times without any loss of its activity. |
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Keywords：
2-substituted-1,2,3,4-tetrahydro-4-quinazolinone
PPA-SiO2
solvent-free
heterogeneous catalyst
silica-supported polyphosphoric acid (PPA-SiO2)
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Received 2009-06-01 Revised 2009-08-02 Online: 2009-09-15 |
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DOI: |
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Corresponding Authors: SHATERIAN Hamid Reza |
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Email: hrshaterian@hamoon.usb.ac.ir |
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