Tungstic acid (H
4
WO
5
) immobilized on magnetic‐based zirconium amino acid metal–organic framework: An efficient heterogeneous Brønsted acid catalyst for l‐(4‐phenyl)‐2,4‐dihydropyrano[2,3c]pyrazole derivatives preparation
2016 ◽
Vol 358
(16)
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pp. 2604-2611
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2015 ◽
Vol 26
(1)
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pp. 26-30
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1999 ◽
Vol 40
(12)
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pp. 2431-2434
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