Use of Nanomagnetic Sulfated Zirconia (Fe3
O4
@ZrO2
/SO4
2−
) as Sustainable Heterogeneous Acid Catalyst for Synthesis of Spiroheterocycles under Solvent-Free Conditions
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2015 ◽
Vol 26
(1)
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pp. 26-30
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2019 ◽
Vol 8
(1)
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pp. 600-610
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2011 ◽
Vol 42
(1)
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pp. 109-113
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