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Beilstein J. Org. Chem. 2012, 8, 1037–1047, doi:10.3762/bjoc.8.116
Graphical Abstract
Scheme 1: β-diketonate complexes (left), homoleptic complexes (middle) and planned homoleptic complexes of eu...
Scheme 2: Pyrrole–pyridine-based structures synthesized in this study.
Scheme 3: Retrosynthetic approach for structures 1–3.
Scheme 4: Synthesis of the heteroaryl bromides used in the coupling reaction.
Scheme 5: Generation of the borate intermediate 21/22.
Scheme 6: In situ Suzuki coupling reactions of the heteroaryl bromides 8–10.
Figure 1: The structure of compound 1 in the crystal. Ellipsoids correspond to 50% probability levels.
Figure 2: Packing diagram of compound 1, viewed parallel to the y-axis in the range y ≈ 1/4. Hydrogen bonds a...
Figure 3: The structure of compound 2·CH3OH in the crystal. Ellipsoids correspond to 50% probability levels. ...
Figure 4: Packing diagram of compound 2·CH3OH showing the formation of inversion-symmetric "stacked" dimers. ...
Figure 5: The structure of compound 3·C2H5OH in the crystal. Ellipsoids correspond to 50% probability levels....
Figure 6: Packing diagram of compound 3·C2H5OH. Hydrogen bonds are shown as thick dashed lines. Hydrogen atom...
Beilstein J. Org. Chem. 2009, 5, No. 31, doi:10.3762/bjoc.5.31
Scheme 1: Behaviour of benzanthrone (1) towards phenylmagnesium chloride (a), phenyl lithium (b), and bipheny...
Figure 1: 1H NMR spectra (200 MHz) of 4 in CDCl3 solution and time dependence.
Scheme 2: Proposed mechanism for the formation of 4 and its oxidation to 7.
Scheme 3: Conversion of the enol 4 under acidic conditions and reaction products.
Scheme 4: Proposed mechanism for the formation of spiro compound 11 and bicyclo[4.3.1]decane derivative 12.
Scheme 5: Proposed mechanism for the formation of 13.
Scheme 6: Proposed mechanism for the formation of 18 as a hydride source and further conversion to 7.
Figure 2: Ellipsoid representation (50% level) of compound 7 in the crystal.
Figure 3: Packing diagram of compound 7 viewed parallel to b; hydrogen bonds C-H···O are indicated by dashed ...
Figure 4: Ellipsoid representation (50% level) of compound 11 in the crystal.
Figure 5: Packing diagram of compound 11 viewed perpendicular to the bc plane; hydrogen bonds C-H···π are ind...
Figure 6: Ellipsoid representation (50% level) of compound 13 (d6-DMSO solvate) in the crystal. Hydrogen bond...
Figure 7: Packing diagram of compound 13 viewed parallel to c; DMSO molecules (including their hydrogen bonds...