Silica gel / NaHSO4: An efficient and recyclable heterogeneous catalyst for high yield synthesis of 1,5-benzodiazepine derivatives under microwave irradiation
The 3 wt% CuI/BNNS catalyst exhibited high efficiency for C–H difluoromethylation reactions and enabled greener synthesis at high yields using cyrene as a solvent. Furthermore, the catalyst could be easily recovered and recycled for at least five cycles.
An efficient and novel method was developed for the synthesis of 4-substituted-1,5-benzodiazepine derivatives via a one-pot three-component catalytic reaction.
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.
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