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Beilstein J. Org. Chem. 2012, 8, 390–397, doi:10.3762/bjoc.8.42
Graphical Abstract
Scheme 1: Reaction of p-bromanil (1) with 1-butylimidazole (2).
Figure 1: 1H NMR spectrum of mesomeric betaine 3.
Figure 2: 13C NMR spectrum of dipole 3.
Figure 3: Solid-state molecular structure of compound 3. Selected bond distances [Å]: O(1)–C 1.228(4), O(2)–C...
Figure 4: Formation of molecular layers in the crystal packing.
Figure 5: Higuchi–Connors phase diagram of 3/m-β-CD complex.
Scheme 2: Mechanism of molecular association of the complex.
Figure 6: Classification of betaine 3.
Scheme 3: Synthesis of polymer 6 and oligomer 7 based on imidazolium-enolate structures.
Figure 7: Thermogravimetric analyses of polymer networks 6a–c and oligomers 7a,b.