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Original Articles

Silica-supported tungstic acid (STA): A recyclable catalyst for the synthesis of 1H-indazolo [1,2-b]phthalazine-trione and spiro-triazolo[1,2-a]indazole-tetraone derivatives under solvent-free condition

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Pages 201-210 | Received 02 Jul 2019, Accepted 26 Aug 2019, Published online: 06 Sep 2019

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