TY - JOUR ID - 114122 TI - Supporting H5[PMo10V2O40] and H5[PW10V2O40] Heteropolyacids onto the Surface of Amine-functionalized Boehmite Nano-particles for Catalytic Epoxidation of Alkenes JO - Inorganic Chemistry Research JA - J10.22036 LA - en SN - AU - Jamali, Mojgan AU - Mirzaee, Mahdi AU - Mohammadi Zonouz, Farrokhzad AD - Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran AD - Department of Chemistry, Faculty of Science, Hakim Sabzevari University Y1 - 2020 PY - 2020 VL - 4 IS - 2 SP - 201 EP - 212 KW - Boehmite nanoparticles (BNP) KW - Keggine type heteropolyacids (HPA) KW - H5[PMo10V2O40] KW - H5[PW10V2O40] DO - 10.22036/icr.2020.239770.1079 N2 - Boehmite nanoparticles were covalently functionalized by 3-(trimethoxysilyl)-propylamine to support H5[PMo10V2O40] and H5[PW10V2O40] Keggin type heteropolyacids. After characterizing these catalysts by FT-IR, PXRD, TG/DTA, CHN, ICP, and TEM techniques, they were applied to the epoxidation of cis-cyclooctene. The progress of the reactions was investigated by gas-liquid chromatography and the catalytic procedures were optimized for the parameters involved, such as the solvent and oxidant. The results showed that 20 mg of supported H5[PMo10V2O40] catalyst in 2 ml C2H4Cl2 with 0.5 mmol cyclooctene and 1 mmol tert-butyl hydroperoxide at reflux temperature gave 98% yield over 60 minutes. Recycling experiments revealed that these nanocatalysts could be repeatedly applied up to four times for a nearly complete epoxidation of cis-cyclooctene. The optimized experimental conditions were also used successfully for the epoxidation of some other alkenes such as cyclohexene, styrene and α-methyl styrene. UR - https://www.inorgchemres.org/article_114122.html L1 - https://www.inorgchemres.org/article_114122_1cf3febebc1e25032c12be0f0f35401b.pdf ER -