Cu(II)-Hydrazide Coordination Compound Supported on Silica Gel as an Efficient and Recyclable Heterogeneous Catalyst for Green Click Synthesis of β-Hydroxy-1,2,3-triazoles in Water
A tin complex immobilized on silica gel was prepared and applied as a green and heterogeneous reusable catalyst for one-pot three-component synthesis of spirooxindoles in water.