A novel reusable and efficient nano-ZnS catalyst was prepared by a single pot wet chemical method and analyzed by SEM,XRD,FTIR and TEM techniques.We have studied the solvent effect,recyclability and reactions of vario...A novel reusable and efficient nano-ZnS catalyst was prepared by a single pot wet chemical method and analyzed by SEM,XRD,FTIR and TEM techniques.We have studied the solvent effect,recyclability and reactions of various aromatic aldehydes with dimidone andβ-naphthol for the synthesis of 1,8-dioxooctahydroxanthenes and aryl-14H-dibenzo[a,j]xanthenes using ZnS nano particles as the catalyst under solvent free conditions without using any acidic catalyst or toxic materials.These results show that nano-ZnS is a potential catalyst for the development of green synthesis in the preparation of xanthenes and that the reaction proved to be economical which is of utmost importance for industrial applications.展开更多
文摘A novel reusable and efficient nano-ZnS catalyst was prepared by a single pot wet chemical method and analyzed by SEM,XRD,FTIR and TEM techniques.We have studied the solvent effect,recyclability and reactions of various aromatic aldehydes with dimidone andβ-naphthol for the synthesis of 1,8-dioxooctahydroxanthenes and aryl-14H-dibenzo[a,j]xanthenes using ZnS nano particles as the catalyst under solvent free conditions without using any acidic catalyst or toxic materials.These results show that nano-ZnS is a potential catalyst for the development of green synthesis in the preparation of xanthenes and that the reaction proved to be economical which is of utmost importance for industrial applications.
