10
S. ZAHMATKESH ET AL.
Fe3O4@SiO2-imid-PMAn Magnetic Porous Nanospheres as a
Recyclable Catalyst. J. Magn. Magn. Mater. 2017, 423, 232–240.
1-Pyridin-2-yl-1H-benzimidazole (Table 2, entry 8)
Brown oil, 1H NMR (250 MHz, CDCl3): d ¼ 7.26–7.39
(m, 3H), 7.58 (d, J ¼ 8.2 Hz, 1H), 7.86–7.93 (m, 2H), 8.06 (d,
J ¼ 7.8 Hz, 1 H), 8.58–8.62 (m, 2 H); 13C NMR (62.9 MHz,
CDCl3): d ¼ 112.6, 114.3, 120.6, 121.8, 123.3, 124.2, 132.1,
138.9, 141.3, 144.7, 149.5, 149.9; Anal. Calcd for C12H9N3:
C, 73.83; H, 4.65; N, 21.52%. Found: C, 73.56; H, 4.73;
N, 21.71%.
6. Billotey, C.; Wilhelm, C.; Devaud, M.; Bacri, J. C.; Bittoun, J.;
Gazeau, F. Cell Internalization of Anionic Maghemite
Nanoparticles: Quantitative Effect on Magnetic Resonance
Imaging. Magn. Reson. Med. 2003, 49, 646–654. DOI: 10.1002/
7. Wu, W.; He, Q.; Jiang, C. Magnetic Iron Oxide Nanoparticles:
Synthesis and Surface Functionalization Strategies. Nanoscale
8. Esmaeilpour, M.; Javidi, J.; Zahmatkesh, S.; Fahimi, N. One-Pot
Synthesis of 2,3-Dihydroquinazolin-4(1H)-Ones by Fe3O4@SiO2-
imid-PMAn Nano-Catalyst under Ultrasonic Irradiation and
Reflux Conditions. Monatsh. Chem. 2017, 148, 947–956. DOI:
1,4-Diphenylpiperazine (Table 2, entry 10)
1
Dark brown solid, mp 150–151 ꢁC, H NMR (250 MHz,
CDCl3): d ¼ 3.36 (s, 8H), 6.88–7.02 (m, 6H), 7.28–7.34 (m,
4H); 13C NMR (62.9 MHz, CDCl3): d ¼ 49.5, 116.4, 120.1,
129.2, 151.3; Anal. Calcd for C16H18N2: C, 80.63; H, 7.61; N,
11.75%. Found: C, 80.84; H, 7.55; N, 11.61%.
9. Lu, A. H.; Salabas, E. L.; Schueth, F. Magnetic Nanoparticles:
Synthesis, Protection, Functionalization, and Application. Angew.
Chem. Int. Ed. 2007, 46, 1222–1244. DOI: 10.1002/
1-Phenyl-4-pyridin-2-ylpiperazine (Table 2, entry 11)
1
Light brown solid, mp 101–102 ꢁC, H NMR (250 MHz,
CDCl3): d ¼ 3.24 (dd, J1¼ 7.0 Hz, J2¼ 5.0 Hz, 4H), 3.64 (t,
J ¼ 5.2 Hz, 4H), 6.56–6.65 (m, 2H), 6.79–6.93 (m, 3H),
7.18–7.25 (m, 2H), 7.40–7.47 (m, 1H), 8.14–8.16 (m, 1H);
13C NMR (62.9 MHz, CDCl3): d ¼ 45.3, 49.2, 107.2, 113.6,
116.3, 120.1, 129.2, 137.6, 148.0, 151.3, 159.4; Anal. Calcd
for C15H17N3: C, 75.28; H, 7.16; N, 17.56%. Found: C, 75.44;
H, 7.11; N, 17.45%.
10. Jeong, U.; Teng, X. W.; Wang, Y.; Yang, H.; Xia, Y.
Superparamagnetic Colloids: Controlled Synthesis and Niche
Applications. Adv. Mater. 2007, 19, 33–60. DOI: 10.1002/
11. Javidi, J.; Esmaeilpour, M. Fe3O4@SiO2-imid-PMAn Magnetic
Porous Nanosphere as Recyclable Catalyst for the Green
Synthesis of Quinoxaline Derivatives at Room Temperature and
Study of Their Antifungal Activities. Mater. Res. Bull. 2016, 73,
2-Imidazol-1-ylpyridine (Table 2, entry 14)
Dark brown oil, 1H NMR (250 MHz, CDCl3):
d ¼ 7.14–720 (m, 2 H), 7.28–7.34 (m, 1H), 7.25–7.34 (m,
1H), 7.58 (s, 1H), 7.73–7.80 (m, 1H), 8.28 (s, 1H), 8.41–8.43
(m, 1H);13C NMR (62.9 MHz, CDCl3): d ¼ 112.3, 116.7,
122.0, 130.6, 132.2, 134.9, 139.0, 149.1; Anal. Calcd for
C8H7N3: C, 66.19; H, 4.86; N, 28.95%. Found: C, 65.99; H,
4.81; N, 29.20%.
12. Qiu, J. D.; Peng, H. P.; Liang, R. P. Ferrocene-Modified
Fe3O4@SiO2 Magnetic Nanoparticles as Building Blocks for
Construction of Reagentless Enzyme-Based Biosensors.
Electrochem. Commun. 2007, 9, 2734–2738. DOI: 10.1016/
13. Chen, Y.; Chen, H.; Guo, L.; He, Q.; Chen, F.; Zhou, J.; Feng, J.;
Shi, J. Hollow/Rattle-Type Mesoporous Nanostructures by a
Structural Difference-Based Selective Etching Strategy. ACS
14. Lu, J.; Liong, M.; Zink, J. I.; Tamanoi, F. Mesoporous Silica
Nanoparticles as a Delivery System for Hydrophobic Anticancer
15. Esmaeilpour, M.; Javidi, J.; Zandi, M. One-Pot Synthesis of
Multisubstituted Imidazoles under Solvent-Free Conditions and
Microwave Irradiation Using Fe3O4@SiO2-imid-PMAn Magnetic
Porous Nanospheres as a Recyclable Catalyst. New J. Chem.
Funding
Authors gratefully acknowledge the financial support of this work by
the Research Council of University of Shiraz and University of
Payame Noor.
16. Lin, Y. S.; Haynes, C. L. Synthesis and Characterization of
Biocompatible and Size-Tunable Multifunctional Porous Silica
Nanoparticles. Chem. Mater. 2009, 21, 3979–3986. DOI: 10.1021/
17. Lee, J. E.; Lee, N.; Kim, T.; Kim, J.; Hyeon, T. Multifunctional
Mesoporous Silica Nanocomposite Nanoparticles for Theranostic
Applications. Acc. Chem. Res. 2011, 44, 893–902. DOI: 10.1021/
18. Esmaeilpour, M.; Javidi, J.; Mokhtari Abarghoui; M. Nowroozi
Dodeji, F. Synthesis and Characterization of Fe3O4@SiO2-
Polymer-imid-Pd Magnetic Porous Nanospheres and Their
Application as a Novel Recyclable Catalyst for Sonogashira-
Hagihara Coupling Reactions. J. Iran. Chem. Soc. 2014, 11,
499–510.
19. Hui, C.; Shen, C.; Tian, J.; Bao, L.; Ding, H.; Li, C.; Tian, Y.; Shi,
X.; Gao, H. J. Core-Shell Fe3O4@SiO2 Nanoparticles Synthesized
with Well-Dispersed Hydrophilic Fe3O4 Seeds. Nanoscale 2011,
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