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Beilstein J. Org. Chem. 2017, 13, 2264–2272, doi:10.3762/bjoc.13.223
Graphical Abstract
Scheme 1: Synthesis of the curcumin structure motif using (a) boric oxide or (b) boron trifluoride.
Figure 1: ORTEP drawings in side view (left) and top view (right) of complexes 2f (a), 2g (b) and 2h (c). Hyd...
Scheme 2: BF2 group hydrolysis of complex 2b.
Scheme 3: Suggested mechanism of BF2 complex hydrolysis.
Figure 2: Absorbance (left) and emission (right) spectra of compounds 2a (orange), 2b (black), 2c (blue), 2d ...
Figure 3: Absorbance spectra of 2b in methanol (orange), tetrahydrofuran (red), toluene (black), dichlorometh...
Figure 4: Compounds 2a–h in dichloromethane solution in daylight (top) and under 365 nm irradiation (bottom).
Beilstein J. Org. Chem. 2006, 2, No. 17, doi:10.1186/1860-5397-2-17
Scheme 1: Reagents and conditions: i) MsCl, pyridine, 0°C, 15 h, 86%; ii) NaN3, DMF, 80°C, 7 d, 80%; iii) Et3...
Scheme 2: Reagents and conditions: i) Cu(OAc)2, THF, 5 h RT, >90%.
Figure 1: X-ray crystal structure of one of the molecules in 13 with used crystallographic numbering. H-atoms...
Figure 2: This figure shows an overlay of the two complex molecules contained in the asymmetric unit.