SYNTESIS OF INDENOPYRAZOLONES BY Fe3O4 @SiO2/APTPOSSCORE-SHELL COMPOSITE NANOMAGNETIC CATALYST

In this research, synthesis of cis-3-aryl-3a,8b-dihydro-3a,8b-dihydroxy-1-phenylindeno[1,2-c]pyrazol 4(1H)-ones obtained in good yields from the sequential reaction between benzaldehydes, phenylhydrazine, and indan-1,2,3- trione in MeCN is described. we prepared a novel recyclable heterogeneous core-shell nanomagnetic Fe3O4@SiO2 octakis[3-(3 aminopropyltriethoxysilane) propyl] octasilsesquioxane, using iron oxide MNPs as the core and the organic-inorganic hybrid silica as the shell. Then, the inorganic-organic hybrid POSS MNPs were used as an efficient new heterogeneous catalyst for the one-pot three-component synthesis of cis-3-aryl-3a,8b-dihydro-3a,8b-dihydroxy-1-phenylindeno[1,2-c]pyrazol-4(1H)-ones in MeCN.

کلیدواژه ها:

Fe3O4@SiO2/APTPOSS ، Indan-1 ، 2 ، 3-trione ، Synthesis ، Preparation