One-pot synthesis of dihydropyrano(2,3-c)pyrazole derivatives using β-cyclodextrin-SO 3 H as a reusable catalyst in aqueous medium
2015
We have developed an expedient and highly efficient β-cyclodextrin-SO 3 H catalyzed approach for the eco-friendly synthesis of dihydropyrano(2,3-c)pyrazole derivatives in aqueous medium. The reaction proceeded smoothly with a range of functionalities within 15-30 min to pro- duce the dihydropyrano(2,3-c)pyrazole scaffolds in good to excellent yields. β-cyclodextrin-SO 3 H can be recycled and reused with an insignificant loss of catalytic activity .
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