Ionic liquid-containing polyethylene supported palladium: a green, highly efficient and stable catalyst for Suzuki reaction

Ionic liquid containing high-density polyethylene supported tungstate: a novel, efficient, and highly recoverable catalyst

“…Figure 2A shows the characteristic peaks of PE, including the methylene (-CH 2 -) groups stretching vibration at 2920 and 2819 cm −1 , the C-H deformation at 1453 cm −1 , and the CH 2 rocking stretching vibration at 715 cm −1 . The peaks that appeared at 1635 and 1530 cm −1 are attributed to the C=N and C=C bonds of ionic liquid moieties, respectively, confirming the successful incorporation/immobilization of ILs into/onto the polymer framework ( Figures 2B, C ) ( Kargar and Elhamifar, 2020 ). The band of O-W-O bonds appeared at 828 cm −1 proving the successful immobilization of WO 4 = on PE/IL composite ( Dkhilalli et al, 2018 ) ( Figure 2C ).…”

“…The synthesis of the [MOIm] [Br] ionic liquid was done by using a previously reported procedure ( Kargar and Elhamifar, 2020 ). The PE/IL was subsequently synthesized using the coacervation method as described below.…”

Magnetic ethylene-based periodic mesoporous organosilica supported palladium: An efficient and recoverable nanocatalyst for Suzuki reaction

“…Therefore, in recent years many researchers have studied and evaluated the optimization of this reaction using efficient catalytic systems ( Dong et al, 2021 ; Favalli et al, 2021 ; Kempasiddaiah et al, 2021 ; Kim et al, 2021 ). Some of recently reported catalysts in this matter are Fe 3 O 4 @SiO 2 @NHC@Pd-MNPs ( Akkoç et al, 2021 ), Fe 3 O 4 /Pd ( Veisi et al, 2021 ), Fe 3 O 4 @SiO 2 /glucosamine-Pd ( Eslahi et al, 2021 ), SiO 2 -NH 2 @Pd (dpa)Cl 2 ( Aghahosseini et al, 2021 ), Fe 3 O 4 /SiO 2 -NH 2 @CS/Pd ( Veisi et al, 2020 ), Fe 3 O 4 @MCM-41-SB/Pd ( Shaker and Elhamifar, 2020a ), PEt@ IL/Pd ( Kargar and Elhamifar, 2020 ), GO-N 2 S 2 /Pd ( Zarnegaryan and Elhamifar, 2020 ) and GO–SB/Pd ( Zarnegaryan et al, 2019 ). In view of the above, in the present work, for the first time, a novel Fe 3 O 4 @Et-PMO supported Pd-Schiff base complex is prepared, characterized and its catalytic application is studied in the Suzuki reaction.…”