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Pyridylmethylaminoacetic acid functionalized Fe3O4 magnetic nanorods as an efficient catalyst for the synthesis of 2-aminochromene and 2-aminopyran derivatives

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Figure

Figure 1. XRD pattern of PMAA-Fe 3 O 4 .
Figure 4. (a) SEM image, (b) EDX analysis and (c) TEM image of PMAA-Fe 3 O 4 .
Table 2. PMAA-Fe 3 O 4 catalyzed synthesis of compounds 1. Entry Ar Yield (%) mp (  C) Measured Reported 1 C 6 H 5 70 224-226 226-228 [37] 2 2-ClC 6 H 4 63 210-211 217-218 [46] 3 4-ClC 6 H 4 68 210-212 208-210 [46] 4 4-MeC 6 H 4 65 217-219 214-216 [46] 5
Figure 7. (a) Reusability of the PMAA-Fe 3 O 4 catalyst.

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